"Seaweed wrap of the submarine "patent inventors: consider implementing haze laser

Recently, netizens were jokingly referred to as "Secretary for strategy talk", the famous military critic Zhang zhaozhong, the "seaweed wrapped around a submarine" fantasy became a national invention patent. "Seaweed wrapped around the submarine" was being rumored in CCTV's defence of the new survey shows, has been controversial ever since. Henan science and Technology University, a master's degree in school as inspiration, combining mechanical and electronic control of knowledge, invented an "underwater defense system for screw propeller", patents have been obtained the authorization of the State intellectual property office, which triggered netizens buzz.
"Seaweed wrapped around a submarine" controversy
"Seaweed wrapped around the submarine" was being rumored in 2013 in a military program on CCTV's. He was explained in the program "United States nuclear submarine in the Yellow Sea will activity" this issue, once put it, "because the water was too shallow, more than more than 50 meters, very few places to seventy or eighty meters. Submarine that you go in the water, now people keep the kelp, so coarse that nylon, it is easy to give you on the ground. "
After this show, "seaweed wrapped around a submarine" quickly became another quote Zhang zhaozhong. Netizens questioned "seaweed wrapped around a submarine" is too simple. Although Zhang zhaozhong explained theories, but still can not stop the program screenshots quickly spread. Since "seaweed wrapped around a submarine" also became a famous label Zhang zhaozhong, netizens have even been dubbed "strategic teasing Secretary", referred to as "Council".
"Seaweed wrapped around a submarine" patents
"Seaweed wrapped around a submarine" patents under application message appeared not so long ago, the Defense received a fan letter from a new survey program group. Henan University of science and technology writer is a graduate student in school, claiming to be under General Zhang zhaozhong nylon rope wrapped around the submarine, designed "a screw propeller underwater defence system", and applied for national patents.
Beijing Youth daily reporter inquiry found that patented "a screw propeller underwater defence system" on July 1, 2014, apply on October 29 of that year was publicized on June 8 this year obtained the authorization of the State intellectual property office.
According to the summary, which is a screw propeller underwater defence system, including twisting device, used to control the twisting device control center and control center control of the output signal for transmission lines, using nylon Twine method for intrusion of the propeller of the submarine lost power. Destructive power of small, produce no pollution after use, and not to destroy other submarines, they can capture each other's submarine purposes.
Fan themselves with practical actions, "name", Zhang zhaozhong in his public platform "called loyalty" responded by saying China has no "strategy talk", people who have plenty of solid scholarship.
"Seaweed wrapped around submarines" is true?
Patent for invention are familiar with knowledge in the field and create the intellectual property agency partner Zhang Bingnan told North Green newspaper reporter, under patent law article 26th 3rd paragraph: the description shall set forth the invention or utility model has made clear, complete instructions, subject to the skilled technicians to implement in the field of. Referred to here "to achieve" is reviewed by the Patent Office to determine. Think only the Patent Office patent application complies with the provisions may be granted patent rights.
But Zhang Bingnan lawyer also said that when examined, generally will not repeat the experiment, only by reading the patent application documents, literature, combined with the known common sense whether the invention meets the patent law in the field of "able to achieve" requirements. But a technology that could eventually achieve commercial or production use, is not within the scope of patent examination. "Seaweed wrapped around a submarine" even if the application for a patent, or that must be achieved.
Dialog
Inventor: I am a "Council" is being rumored, "iron"
"Seaweed wrapped around a submarine" patent is called Lei Ma, Henan University of science and technology is a college graduate. Bei Qing reporter, he said he was the "Council" is being rumored, "iron", Zhang zhaozhong also intends to achieve another controversial idea: the "smog against laser".
Idea two weeks a year returns
North Green: When did you start to think "seaweed wrapped around submarines" made out of?
Lei MA: that's after reading Zhang programs on TV, seemed in theory should be able to. Only submarines could not hit directly on the kelp, is to make use of it, to make it more intelligent.
Bei Qing: really finish this long was a patent for invention?
Lei MA: from idea, to think, topic, complete the declarations about one or two weeks. After 2013 events with this idea, but wait until the summer after graduating from College in 2014 really have time to write.
Agricultural machinery professional grew up loving the military
Bei Qing: did you study arms?
Lei MA: no, I studied agricultural machinery. However, fundamental subjects of mechanical engineering is the same, works such as learned. I have to declare a total 8 patents, more than half and no relation to the agricultural machinery, inventions in the field of automobiles, aircraft.
Bei Qing: later in the relevant field?
Lei MA: mechanical this class will not change, Bo is currently preparing for the exam. Want to get down to do some research.
North Green: do normally like the military?
Lei MA: well, my main point is more greatly influenced by my grandfather, from military programs. Now news headlines and military classes.
Wonder whether the patent can put into production in the future is not necessarily
North Green: are you going to personally put "seaweed wrapped around submarines" to come?
Lei MA: now it remains still in the conceptual stage, in fact, I kind of wanted to build a model, to achieve it. But what really put into practice, a weapon or something, might not achieve on my own.
North Green: manufacturers contact you?
Lei MA: not yet, the Henan University of science and technology should you want to contact us, because the school is the patent owner, I just invented it.
North Green: you think that likely made them bigger?
Lei MA: should in principle, but not every method is suitable for input to use. Actually received, ten there may be only one or two species.
North Green: "seaweed wrapped around a submarine" patents can make money?
Lei MA: I don't know, all of my patents are out of interest.
"" Iron powder is also considering implementing "smog control laser"
North Green: you mentioned in the message do you want to do the first inventor Zhang zhaozhong is?
Lei MA: is this in my head, Professor, after all, busy, taking into account the country's Army fan, not because I am a person, thank you for his time. Seems to be an air show in Zhuhai recently, Zhang seemed very concerned.
North Green: do you also like Zhang zhaozhong himself?
Lei MA: well, like Zhang. Humorous, Mr Liang lingguang--style.
North Green: If you can see is being rumored, what you want to say to him?
Lei MA: there are few military types of question you want to ask, though some of "the Fantasticks".
North Blue: since when do like "local"?

Lei MA: for many years, 2013 that still impresses our discussion. Professor Zhang expressed does not mean saying "defense by kelp", but considering many military accomplishment is too high for an audience, in a user-friendly way, I think it's great. So I wanted to support him in this way, once authorized by Professor contacted the team wanted to tell about it.
North Green: what do you think of the "Bureau" another dispute: "the smog against laser"?
Lei MA: I think it is theoretically feasible, not with smog, are made of ice crystals, water droplets or something like that. Professor Zhang is a science. Now I have the idea, but more technical things to check information.
North Green: do you fear being questioned?
Lei MA: worry, I sent that letter just because I like Zhang, he knows that on the line, did not expect the effect to be so. I think, the truth is usually in the hands.

Plastering on aerated concrete wall surface processing

1 scope

This standard applies to aerated concrete blocks and aerated concrete wall surface plastering.

2 construction preparation

2.1 materials and equipment

2.1.1 cement: No. 325, Portland or Portland slag cement.

2.1.2 sand: sand; aperture 5mm sieve before use, and clay content of not more than 5% shall not contain debris.

2.1.3 lime cream: one month before using massive lime cream and pour ash 3mmx3mm with aperture of sieve filters. Or use the pulverized quicklime, stored in the sedimentation tank, soaked in water for not less than 3D, making it fully cured, lime paste may contain particles and other impurities that are not cured. Gypsum mortar in advance into a mortar, mixed with cement mortar mix.

2.1.4 paper reinforced white bars and toilet paper bar, soaked in water before use and mash. Overlay paper bars suitable for grinding fine, does not contain impurities. Straw, wheat straw should be tough, dry, free of impurities, the fibre length must not exceed 30mm. Straw, wheat straw before using the lime dipping.

2.1.5 Ma DAO: must be uniform, flexible, dry, free of impurities, 10~30mm in length. Flapping loose.

2.1.6 anti-cracking agent: anti-cracking agent should meet the performance targets set in the programme for construction, such as pH value, viscosity, density, initial setting time, volatile components for testing.

2.1.7 fly ash, perlite powder (density is 40~300kg/m3), 107 rubber and so on.

2.1.8 main machines: General should has mortar mixer, and Shang material frame, and vertical transport mechanical, and sieve (aperture for 50mmx50mm, and 30mmx30mm), and hand sprayer, and supporting gray Board, and wood wipe child, and iron wipe child, and by feet Board, and half big barrels, and iron, and shovel, and Yin angle wipe child, and Yang angle wipe child, and small round angle (triangle iron) stroked child, and hair brush, and big bar, and small bar, and supporting Board,.

2.2 operating conditions: to verify the main structural engineering inspection and access to structured inspection procedures, before plastering.

2.2.1 aerated concrete wall repairs completed, completion of door and window frames, partition walls, plumbing, electrical, piping, Fire Hydrant Cabinet, distribution box related embedded parts, wood cabinets, tile installation, Embedment work.

2.2.2 prior to plastering wall was tick cut line Groove, made perfect. Check for proper door and window frames, install a solid connection, gap between door and window frame and wall 1:3 cement mortar or impaction of 1:1:6 cement mortar-sealed.

2.2.3 according to the grey wall height, scaffolding, high stools for set plaster. Operating platform and wood should be 200~250mm left the wall and door and window openings to facilitate operations. Wood should be stable, firm and reliable.

2.2.4 winter construction of plastering mortar and anti-cracking agent insulation measures, operating the place cold, freezing facilities. Temperature should not be below 5 degrees Celsius.

3 operational processes

3.1 process:

Treatment of base → water wetting → → ash cake, Red labels reinforcement cement kick →

Door window corner → cement mortar scratch coat spray head → anti-cracking agent →

Repairing walls, trough the hole → cover grey spray two times → anti-cracking agent

3.2 base treatment: check before plastering aerated concrete walls, loose, mortar, not full of seams and head joint under the beams, plates, padded Compact with 10% 107 adhesive mortar mixed with water. Tongue of exposed wall ash blown away, rejection of chisel flat-convex parts of the wall. Crater wall inequality, block short of cord angle and tick pipeline slot cut, hole, plastic ash renovation of dense, smooth. Sizing with a Board check the vertical deviation and smoothness of the wall, plaster base treatment intact.

3.3 water wet: the clean wall surface, score over watering moist. Because of aerated concrete block water absorption speed from fast to slow water slow and long duration, it should increase the number of water, plaster layer has a good setting and hardening conditions, not in the water during the hardening of the mortar was sucked away by aerated concrete. Infiltration of water to water depth 8~10MM block is appropriate, and watering should be in plaster for the previous day. Event of dry weather, plaster wall is still dry, not wet, should be sprayed over water, plaster walls do not float, to mortar strength growth, less prone to hollowing and cracks.

Spray brush and again immediately after mixing water of 20% 107 adhesive cement slurry, and then began plastering.

3.4 paste ash cakes, Chong tendons: Care Board test over different parts of the wall vertically, flat, with the actual height of wall ash cake and punch the number of bars. Average height and the distance to 1.8M is appropriate. 1:1:6 cement-lime mortar, gray 100mm square pie. Thickness of the ash cake to meet the requirements of plastering the walls reach the verticality is appropriate. Ash cake Board find up and down vertical, horizontal plates, on foot or line level, after first. Ensure the surface of the walls, ash cakes in the same plane, as a basis for screed Strip.

Screed Strip: in accordance with the already good ash cake, from the horizontal or vertical direction between each gray pie mixed with cement mortar screed Strip, repeatedly rubbing, hanging vertically up and down.

3.5 cement mortar skirting, Dado: in cement mortar within height range, brush it again 10% 107 adhesive plain cement slurry mixed with water, immediately 1:1:6 mixed mortar scratch coat, thick 5mm. Then wipe it again (middle gray), and rib rub smooth surface with a wood float-filled hairs. In the middle gray when they reach five or six, 1:1:5 cover grey cement mortar, trowel, calendering, it tastes good with foot flush cutting. After plastering the wall is complete, the wall thickness should be the same, usually in convex wall of ash-5~7mm.

3.6 door window of cement mortar corner: corner of interior door window and door and window sets, cylinder angle, should cement mortar angle, the height shall be not less than 2m, corner edge on each side of a width not less than 50mm, Sun angles, doors and Windows from top to bottom and underside of the lintel to founder. How to brush a mixed with water of 10% 107 adhesive cement, l:1:6 cement mortar base. Second time with 1:0.5:3 cement mortar and reinforced screed. Corner sides stuck on foot, slightly dry and then using mortar cement poured into small fillets (with angle iron beard), edge thickness should be beyond the end of the wall thickness of the ash cover grey, rear flush with the wall surface ash layer.

3.7 ash:

3.7.1 brush mixed with water wall of aerated concrete block of 10% 107 adhesive cement should be timely after plastering, not plain water mud dry and then plastering, otherwise, the isolation layer is formed, is not conducive to grass-roots bonding. When plastering gluten should not be damaged. First time mixing mortar, mix 1:1:6, 5mm thick. Sweep hair or draw lines, conservation, dry, and 1:3 lime mortar, thickness and the gluten-filled level. Or 1:3:9 cement mortar mix to wipe it a second time, walls with a big bumper scrape, rub wood trowel flat. Sizing with a Board examination, require vertical, smooth, Yin, Yang Kok founder, top plate (beam) intersection angle with the wall straight, it tube internal corner straight, smooth and clean.

3.7.2 scratch coat on aerated concrete panel: generally after the screed Strip 4H, first brush of 10% 107 rubber cement mixed with water consumption, then mixed with 1:3:9 mortar scratch coat, the thickness of 6~8mm and plastering with a big bumper in accordance with the standard bar to scrape, rub coarse wood trowel pock marks.

3.8 repair wipe wall surface Shang of box, and slot, and holes; Dang end of gray leveling Hou, should immediately put heating, and electrical equipment of box, and slot, and hole hole around 50mm of end of gray mortar cleanup clean, using 1:1:4 cement mixed mortar put mouth around repair wipe flat align, and founder, and smooth, wipe gray Shi than wall surface end of gray high out a cover surface gray of thickness, ensure slot, and hole around dressing intact.

3.9 spray (first round) anti-cracking agent: anti-cracking agent is to ensure that the wall plastering of aerated concrete does not appear hollow, crack the key measures, the process used to decide according to their specific conditions. When the scratch coat after wiping out immediately with sprayer anti-cracking agent sprayed directly on the scratch coat, anti-cracking agent to mist spray, for spraying evenly, do not leak spray, and is not excessive, concentration. When nozzles tilted upward, and distance from the wall, spraying to ensure even moderate, and it is not washed the plaster layers as appropriate. Anti-cracking agent not to twist spray 2~3h, so as not to damage the surface structure.

3.10 cover gray:

3.10.1 paper reinforced gray overlay: dry bottom ash for about six or seven when the thickness of 2mm cover grey. To scrape a layer of thin, smooth, rough pressure again, and then put it again, from top to bottom, order, compaction, catch the light. Then with an iron trowel smooth, light, and finally with hard plastic trowel smooth lines light. Pollution should be cleaning a clean, not dumped broken lives.

3.10.2 the mortar mix cover: 1:0.5:3 cement mortar overlays, 5mm. Two survived, also in scratch coat dry start five or six cover gray, brushes on the bottom ash of 10% 107 rubber cement mixed with water consumption, followed by cement mortar, trowel, compacting, and catch the light.

3.10.3 cement mortar overlays: brush element when mud, water, 1:2.5 cement mortar in two times with survival, overlay, 5mm.

3.11 spraying (second time) anti-cracking agent: cover gray finished, slightly dry, with initial hardness, generally after the initial setting of the mortar before you shrink, sprayed it again anti-cracking agent in a timely manner. When the temperature is moderate, moist environments, anti-cracking agent can also save not to do.

Winter construction of 3.12: indoor plastering on aerated concrete wall surface, measures should be taken, using a variety of materials shall not be subject to freezing, plastering mortar temperature shall not be less than 5.

Of plastering on aerated concrete wall surface temperature should not be lower than 5 ℃, indoor plaster should be prepared in advance for warmth, heat and cold. In winter by freezing method in construction of masonry walls, in front of the plaster should take measures to thaw. All wall after thawing, and ambient temperature 5 ℃ above, may be carried out on aerated concrete wall surface plastering jobs. Not under negative temperature environment and plastered on the wall not yet thawed.

Winter construction of appropriate ventilation in indoor air, the moisture out. Should have special responsibility for switching Windows and doors, insulation, temperature. Strictly control the indoor temperature, plastering layer must not be allowed to freeze.

4 quality criteria

4.1 project:

4.1.l material of the variety, performance and quality must comply with the design requirements and the relevant provisions of the standard, plaster grades, is in conformity with drawings provided.

4.1.2 the plaster layer and must bond between plaster layer and the substrate, no delamination, hollowing and cracks. Non explosive dust, cracks and other defects.

4.2 Basic project:

4.2.1 surface:

Common plaster: the surface is smooth, clean, Cha and smooth.

Intermediate plasters: smooth, clean surface, Cha flat, corners straight and clear, uniform rough surface texture.

Advanced plastering: the surface is smooth, clean, uniform color, no lines, and gray line straight line angle, founder, clear and beautiful.

4.2.2 corner and doors between the window frame and wall cracks, corner in accordance with provisions of the code. The surface is smooth, smooth. Gaps between the door and window frames and wall packing density, surface roughness.

4.2.3 holes, troughs, boxes, pipes behind the plaster, the correct size, founder, clean, and smooth. Behind the pipeline, smooth and clean.

Section 4.2.4 (seam): width, depth, uniform (seam) is flat and smooth, Leng corners neatly, horizontal even vertical, smooth.

4.3 allowable deviation, as shown in table 9-3.

Aerated concrete wall tolerance table 9-3

Project tolerance (mm) test method

Regular intermediate advanced

1 façade vertical-5 3 2m supporting plate check

2 surface flat 5 4 2 2m m on foot and wedged feeler Gage check

Angular vertical-4 2 3 Yin and Yang with 2m supporting plate check

4 point founder-4 2 20cm feet of yin and Yang and wedge feeler Gage check

5 points (seams) straight-3-5M line and length check

5 finished product protection

5.1 Windows angle finished, cement wash with water on the door window frames, aluminum Windows and doors must be protected against pollution.

5.2 roots above the door frame before plastering 500~600mm range, nailed metal or wood to protect, prevent construction of smash.

5.3 ground, skirting, Dado and pipeline behind the clean up, back prior the radiator brush (spray) overlay with good material.

5.4 aluminum alloy door and window protection film not torn, and gaps between the wall no cement impaction, to prevent corrosion. Design requirements the caulking material, such as when there is no clear, gap fill insulation cotton, inside and outside the rubber seal. To prevent pollution and damage of aluminum alloy doors and Windows.

5.5 material handling light and water down the scaffolding to lift, handle with care, debris removal, tools, materials, neatly, don't crash and pollution of doors, Windows, walls and corner. Not to damage the surface layer, no ash mix on the ground, to avoid bruising. Protect the ground intact.

5.6 protection of embedded parts of the great wall, air grate, pipelines tanks, boxes, electrical, plumbing equipment, the hole he has made not to die.

5.7 before plastering in the setting and hardening to prevent fast-drying, water, impact, pick your chisel. Ensure the ash layer grows to sufficient strength.

5.8 sprayed mortar in the overlay at the bottom of anti-cracking agent before the ashes do not twist, so as not to reduce the effect of crack.

6 quality problems to be noticed

6.1 bond is not strong, hollow, crack: plastering of aerated concrete wall, one of the most common problems is the ash layer bonded with the matrix in prison, hollowing and cracks. Main reason is basic cleaning not clean wash away with water, moist enough, don't scratch grain cement slurry. Due to mortar in strength, the hardening process, their uneven shrinkage stresses, formed in cracks. Improvements can be used to spray crack agents of gum or brushing with about 107 plain cement slurry to increase adhesion, reducing mortar shrinkage stresses, improving the early strength of mortar improved plaster base and mortar mix is the solution of aerated concrete wall surface hollow, crack the key. While the surface tensile strength of mortar improved enough to resist the shrinkage stresses on the surface of mortar, mortar strength growth, capable of withstanding the effects of shrinkage stress, thus preventing the air drum, desiccation, emergence of cracks.

6.2 the plaster layer too thick: plastering layer thickness significantly in excess of the prescribed, especially coated concrete, plastering crack. Plastering layer thickness should be controlled by Chong tendons, keep 15~20mm. Operations should be stratified and intermittent plastering every thickness for 7~8mm should first pass ash after the final setting and then put it again, never again.

6.3 frame edges are not grey or gray solid, embedded spacing between wood bricks, wooden bricks loose repeatedly switch vibration hollowing and cracks on both sides frame: doors and Windows should be sewn as a process by the person in charge, wood bricks must be embedded in a concrete block, with the wall placed on the required spacing. Aerated concrete wall around the door frame should be made of reinforced concrete column, column embedded in wooden block is most appropriate.

6.5 wipe gray tie than using not right, Foundation gray of strength too high, makes gray layer appeared empty drum, cracking: improved approach: the layer gray of tie than to suitable, especially Foundation gray of material, to priority used and added gas concrete of material performance phase close of material, its strength, and modulus and contraction rate basic close suitable, and wipe gray layer strength too high, makes grass-roots and Foundation gray Zhijian easy produced big area empty drum, and crack. So the proper mix is necessary.

6.5 plastering bubbling with obvious trowel marks, wall flowers::

6.5.1 after finishing the cover gray, also does not have the strength, working with tight ash layers have not received water, light appeared after popping. Cover gray after the ash layer has a certain degree of hardness, deformation is small, gray layer of surface water has been received, then compaction, catch the light.

6.5.2 excessively scratch coat is dry, and no water permeable, overlay after the ashes, water is absorbed by the scratch coat, so easy when lines and light leakage. When ash should begin to cover five or six usual grey, if it is too dry to fit water spray. Cover gray should have a good time, eliminating lines.

6.5.3 cream soak gypsum mortar and lime powder, to chronic, excessive lime with lime materials and impurities without filtering, gypsum mortar curing time is short, especially for grinding lime powder, not required soaking time, fire particle fails to fully cure, wall water continue to ripen, volume expansion caused by plastering the surface burst, flowering occurs, bursting the skin. Cream ground lime gypsum mortar, or prepare, maturing period must meet the qualifying days. Prepare in advance. Gypsum mortar shall not be not fully ripen on the wall.

6.6 plaster surface, angle not perpendicular, not founder of yin and Yang: the main reason is hanging before the plaster line, ash cakes, Chong tendons are not serious, Chong tendons time too short or too long, resulting in shrinkage of different appears rough, angle is not straight, not founder of yin and Yang. Before plaster application supporting Board and on foot on the grey wall surface size prediction mapping, arranging angle two different surface layer thickness of yin and Yang and the founder, earnestly ash cakes, Chong tendons. Corner square sets of yin and Yang. Wall vertical, flat, angle founder of yin and Yang.

6.7 Dado, skirting and cement hands out the wall sill plate thickness are inconsistent, it tastes good and Burr quarrel not founder, roots appear eight glyphs Askew: the main reason was operating fine, not complying with the provisions of hanging wall vertical, not party, Latrun not straight lines attempt to find rules. Improvement: while the operation requiring careful hanging,,. Catchy with a anti-scraping, compaction, catch the light. Cut the roots. Make it square and straight.

6.8 pipe behind the plastering inside, not only, it tube cracks, Heating tanks on both sides of the upper and lower plaster not fluent: improvements are, line the wall required casing, where plumbing installed in advance before Ash site and cleaned. Groove, Duo-sized hanging straight, level, pressure. Edges neatly, don't dump jobs.

7 quality records

This standard shall meet the following quality records:

7.1 cement factory prove and test reports.

7.2 sand material proof.

7.3 fly ash and expanded Pearlite material proof.

7.4 adhesives, anti-cracking agent factory certificate.

7.5 quality inspection and assessment of records.

Soil construction technology of drill exploration

scope

This technology is applicable to the Foundation of a building or structure, (Groove) base soil quality soldering of checks.

2 construction preparation

2.1 materials and equipment

2.1.1 sand: sand in General.

2.1.2 major tools:

2.1.2.1 Manual soldering: General steel, made of steel with diameter of 22~25mm, a 60 ° taper-shaped bits, drill longer 1.8~2.0M;8~10-pound sledgehammer.

2.2.2.2 mechanical drill: portable penetrometer (Beijing region will use).

2.2.2.3 other: twine or wire, ladder (Chair), trolleys, crowbar (drawn steel) and a steel tape measure.

2.2 operating conditions:

2.2.1 base soil had been dug to pit (Groove) elevation at the end of, the surface should be flat and axis and holes (slots) width and length are in line with the design drawing requirements.

2.2.2 according to design drawings drill hole floor plan. Design no special provisions, can be performed according to table l-6.

2.2.3 night-time construction, there should be adequate lighting facilities, and research on the reasonable arrangement of solder order to prevent mistyped or missed call.

2.2.4 Rod advance 30cm on line.

3 operational processes

3.1 process:

On lines → place soldering soldering of solder points with sand

↓     ↓

Record hammering hole deep

3.2 Summary of drill hole location floor plans on line hole small stakes on the nails, or sprinkled with lime.

3.3 place soldering

3.3.1 Manual soldering: soldering tip alignment holes, inset steel, one station in operation on a stool, beaten with a hammer drill Rod top; hammer height for 50~70crn, drill vertically into the soil.

3.3.2 mechanical drill: touches the stem tip alignment hole position, then put the hammer on the rod, righting the rod, pulling up through the heart hammer, its free fall, hammer from the 50cm stem vertically into the soil contact.

3.4 record blow counts. Drill rod into the soil 30cm, record blows blow counts. Drill deep penetrating such as design provided, generally performed as l-6.

3.5 remove solder: Use Twine or wire tie rod, live sets, insert a crowbar or metal pipes, use the principle of leverage, the bit out. Each pulled out a rope down a, and so on, up until fully extended.

3.6 shift: rod or cone to move to the next hole, so as to continue to drill.

3.7 sand: after drill hole, pass quality inspection and associated after the foreman check the hole depth and record correctly, you can carry out sand filling. When the sand, fill every available 30cm or steel rod ramming a stick again. Sand has two forms, one per hole punch out sand filling in time after a few holes played; the other is after playing every day, uniform sand again.

Drill hole arrangement of table 1-6

Slot width

(Cm) spacing

(M) deep

(m)

2.0

Column base

Plum blossom

1.5~2.0

1.5, and

Light in

Short edge

3.8 document: numbered sequentially as drill hole, hammer within a few fill in the standardized form. Write clearly and after soldering and technician signature archive.

3.9 winter and rain during construction:

3.9.1 base soil after rain, shall not be carried out research on brazing.

When Rod sounding 3.9.2 base soil in winter, flip cover insulation materials in a timely manner after each play a few holes, no massive flip cover, protect the soil from freezing.

4 quality criteria

4.1 project:

Rod sounding depth must conform to the requirements, hammer recorded accurately, not false.

4.2 Basic project

4.2.1 soldering bit is accurate, hole shall not be missed.

4.2.2 under drill hole sand should be dense.

5 finished product protection

5.1 soldering after the study is completed, should be well marked, protect the drill hole without quality checks and associated foreman re-inspection shall not be plugged or sand.

6 quality problems to be noticed

6.1 if steel to fight on, and should ask about the foreman or technician: cancel the drill hole on or soldering. Had to fight, to fill in the hammer.

6.2 record hole location and floor plan a mistake:

6.2.1 soldering hole layout of drill hole with drill holes on the sheet control, there is no error. Errors corrected or supplemented.

6.2.2 in the record sheet with colored pencil or a symbol different from the drill holes (hammer).

6.2.3 in the drill hole on the floor plan, indicate the location of the hole, hard or soft, graves and other dry or paint to design survey or associated departments, inspection analysis.

7 quality records

This standard shall meet the following quality records:

Engineering geology investigation report.

Construction technique of prefabricated reinforced concrete pile

1 scope

This technology is applicable for industrial and civil construction of prefabricated reinforced concrete piles.

2 construction preparation

2.1 materials and equipment:

2.1.1 precast reinforced concrete piles: quality specifications must meet the requirements of specification for design and construction, and factory certificate.

2.1.2 electrode (piles): model, performance must comply with the design requirements and the relevant provisions of the standards, should be treated with E4303.

2.1.3 plate (piles): materials, specifications comply with the design requirements, to use low-carbon steel.

2.1.4 main tools are: diesel hammer, electric welding machines, pile caps, carry cars. Sling, wire rope, steel plate or steel, as well as Pocket rule.

2.2 operating conditions:

2.2.1 pile axial and elevation have been completed, and after checking the pre-screening procedure. Axis and elevation control of pile-pile, should be set up in places not affected by pile driving and should be properly protected.

2.2.2 processing of aerial and underground obstacles. Affect the use or security of neighbouring buildings or structures, effective measures should be taken in conjunction with the relevant authorities, to deal with it.

2.2.3 released axis line, with chunks of wood or steel head nails pile and lime as a marker, so that shot.

2.2.4 sites should be rolled flat, smooth drainage to ensure vertical pile movement and stability.

2.2.5 test piles. Test pile construction must play, the number of wood less than 2. Determine penetration and verify piling equipment, construction technology and technical measures are appropriate.

2.2.6 to select and rank pile driver access routes and piling, and formulate programmes, make technology gives the low-down.

3 operational processes

3.1 process:

Pile hoisting precast pile → → → → → piling pile stabilization →

Intermediate inspection → pile to the next pile position

3.2 in place pile: pile in place, should be aligned to ensure vertical stabilizer, the construction does not tilt, move.

3.3 lifting prefabricated pile: first tied good hanging pile with of wire rope and cable with, then application cable with bundle live pile top rings near at, General should not be over 30cm, again up moving machine lifting prefabricated pile, makes pile pointed vertical alignment pile bit Center, slowly down plug buried in the, location to accurate; again in pile top buckle good pile CAP or pile Hoop, can removed cable with.

3.4 stability. After pile insert, use a smaller drop-distance cold hammer 1~2, pile into a certain depth, then makes the vertical stabilizer. 10m line for short pile can be Visual or bi-directional correction; 10m or playing pile must be in line or theodolite bidirectional calibration, not Visual. Insert vertical deviation must not exceed 0.5%. Pile in front of the access should be set on the side of the pile or pile the ruler, so that construction of observation, record.

3.5 driving: with a hammer or hammer driving, hammers the maximum fall distance should be less than 1.0M. ; Driving diesel hammer, hammer should be beating normally.

3.5.1 weight piling should be low, hammer weight should be selected based on engineering geology condition of pile type, structure, intensity and construction conditions to choose.

3.5.2 piling orders based on the underlying design of the elevation, deep-shallow; according to pile size after the first small, long before they are short. Due to the different intensity of the pile, from the Center to two hearts to the symmetry or around; or by the side of a single direction.

3.6

3.6.l in the case of long enough, by welding by pile, embedded part of its precast pile on the surface should be clean, gap between the upper and lower sections of iron Tablet pad solid solid; welding, should take measures to reduce weld deformation of welds shall be continuous welds.

3.6.2 pile, generally from when the ground around the LM. Center line of the upper and lower sections of deviations not greater than 10MM, joints flexed rise-high-‰ length shall not be greater than l.

3.6.3 before the pile the soil, exposed iron, make up brush paint again.

3.7 pile: when design requirements pile, the centerline of the pile shall be consistent with the line of the pile, pile. If uneven, sacks or thick paper pads that are available. The pile immediately backfill compaction pile left.

3.8 checking: each piles to penetration requirements, elevation of pile tip into bearing layer, when close to the elevation, or while he was playing to the design level, intermediate inspection should be carried out. In control, General requirements for the last sancishi average penetration of the hammer does not exceed the values prescribed by, or using a pile until elevation to control, comply with the design requirements and fill construction record. Such as when he found the position and requirements are different, and should be studied in conjunction with the relevant authorities. Then moves to a new position.

3.9 during piling, meets the following conditions should be suspended, and timely and relevant units dealing with:

3.9.1 penetration upheaval;

3.9.2 tilt and displacement or suddenly had serious rebounding;

3.9.3 piles or pile when serious crack or break.

3.10 all the piles after the excavation to the design level, do a final check and acceptance. And submit the technical data the total package.

3.11 pile in permafrost area in winter when there are difficulties, it should first be removed or after thawing of frozen soil.

4 quality criteria

4.1 project:

4.1.1 the precast reinforced concrete pile quality must comply with the design requirements and specifications provided, and has a factory certificate.

4.1.2 the piling of elevation or penetration, piles of connector, you must meet the requirements of specification for design and construction.

4.2 allowable deviation, as shown in table 2-5.

Precast reinforced concrete pile tolerance table 2-5

Project tolerance (mm) test method

Vertical center line of Foundation beam 100

Along the center line of Foundation beam 150

Number of 2 piles for 1~3 or single-row piles 100

3 number of piles for 4~16 root d/3

Edge d/3

Middle d/2

Note: d for the diameter of the pile length or cross section.

5 finished product protection

5.1 shall meet the design strength of the 70% before he can lift, above 100% to transport.

5.2 lifting and handling, you must do the lifting point meets the design requirements, should be smooth and not damaged.

5.3 pile piled up, the following requirements:

5.3.1 venues should be smooth, firm, shall not give rise to uneven sinking.

5.3.2 wood with hanging points should be the same, and should be in the same plane.

5.3.3 pile, the pile should be put together, and pointed to the end.

5.3. more than 4 storey wood should align the bottom wood should be appropriately widened. Stacking layer is generally not more than 4 floors.

5.4 properly protect the axis and elevation control of pile-pile. No displacement due to collisions and vibrations.

5.5 data differ from the driving data provided does not comply, it should stop the construction and joint research with relevant units.

5.6 on the slopes close to buildings or to shore, driving, effective measures should be taken in conjunction with the relevant authorities. Should be observed at any time during construction to ensure that avoids accidents because of piling vibration.

5.7 piling is completed during excavation, should formulate a reasonable construction and technical measures in order to prevent displacement and tilt.

6 quality problems to be noticed

6.1 advance order processing prefabricated pile, driving strength must meet the design strength of precast concrete pile of 100% and conservation period by one month behind the shot should be added.

6.2 pile break. Due to excessive bending, strength of the pile and the underground obstructions caused, or fracture in the stacking, lifting, transport, did not find consensus. Should be checked in a timely manner.

6.3 fragmentation, due to pile on pile top intensity and insufficient reinforcement mesh, reinforcement from the top of the pile, or the pile caused by injustice, wrong choice of construction machines and other reasons. Inspection at time of preparation should be strengthened.

6.4 piles tilted. Due to the uneven, space pile drivers chassis not level or steady not vertical, pile in underground meeting caused by hard objects or other reasons. Should be strictly according to the process regulations.

6.5 pulling crack. Connected surface is not clean, connect welding quality uneven, iron does not meet the requirements, then pile vertical centre line is not in the same line of fine resulting. Should ensure the quality of piles.

7 quality records

This standard shall meet the following quality records:

7.1 of prefabricated reinforced concrete piles factory certificate.

7.2 test or test records.

7.3 filling pile floor map.

Duct parts manufacturing process

1 scope

This technology is applicable to all types of metal air outlet, air valve, cover, hood and flexible tubes and other parts work.

2 construction preparation

Requirements 2.1 materials and equipment:

2.1.1 material should have a factory certificate or qualification documents.

2.1.2 in addition to the above documents, Visual inspection should be carried out, all kinds of sheet metal surfaces should be smooth, uniform thickness, no apparent injuries and no cracks, corrosion and other defects, profile, evenly, without cracks and severe corrosion conditions.

2.1.3 other defects in material cannot by itself affect or reduce the quality or performance of the product.

2.1.4 cut Board machine, and folding party machine, and bite mouth machine, and punch, and welding machine, and spot machine, and Asia welder, and lathe, and bench drill, and profile cutting machine, and empty pressure machine and the painting equipment, and manual, and electric hydraulic rivet clamp, and electric pulled riveting gun and ruler, and feet, and designated rules, and designated needle, and hammer, and wood hammer, and ocean rushed, and wrench, and screwdriver, and wire clamp, and steel tape and the dedicated stamping mold, and tooling,.

2.2 operating conditions;

2.2.1 should have large, bright, ground smooth and clean facility.

2.2.2 work sites to meet the processing requirements of machinery and equipment, the appropriate power supply, safety protection devices and fire control equipment.

2.2.3 air duct parts shall be according to the relevant State standard design drawings and construction of written technology, deliver the quality, safety and construction budgets.

3 operational processes

3.1 air flow:

Frame cutting → (die)

Picking blade cutting → (die) forming the Assembly surface treatment welding → → →

Machine parts and other parts processing

Factory → products → test →

3.2 picking:

Air inlet is made according to its type, specification, use different materials.

3.3 cutting, molding:

3.3.1 outlet under the part of material and form should be completed using a special die.

3.3.2 aluminum Tuyere materials required for profiles, metal forming, with the exception of special mould should be used, should also be equipped with a special aluminum cutting machines.

3.4 Assembly:

3.4.1 when forming air inlet parts Assembly, there should be special tooling to ensure product quality. After product Assembly, inspection should be carried out.

3.4.2 wind pipes surfaces should be smooth, with design dimension of tolerance should not be greater than 2mm, rectangular vent two diagonal difference should not be greater than 3mm round vent any two orthogonal tolerance should not be greater than the diameter of 2mm.

Turning Regulation section 3.4.3 inlet should be flexible and leaves should be straight, with borders not collisions.

3.4.4 grate plate air type and activity, gate, grate plate should be flat, smooth edge, pull the flexible. Activities bi-plate outlet should be able to reach safety after Assembly called that open and close.

3.4.500 leaves the air blade spacing should be uniform, at both ends should be in a straight line from the center of the shaft. Manual air vane and rivet of the border get elastic is appropriate.

3.4.6 diffuser the diffuser ring and loop with axis, the axial spacing should be evenly distributed.

3.4.7 orifice air inlet, orifice without burrs, Aperture and the distance, the design requirements.

3.4.8 rotary air outlet, the activity should be light and flexible.

3.4.9 spherical air between the inner and outer sphere needs to be elastic moderate, turning freely, adjusting should be able to effectively adjust the air flow.

3.4.10 outlet activities, such as integration with other shafts, bushings, tight fit, and should add oil after Assembly is complete.

3.5 welding:

3.5.1 steel outlet after completion of welding according to different materials, select the welding gas welding or electric welding. Aluminum Tuyere argon arc welding should be used.

3.5.2 by the decorative surface of the weld shall not, and shall not have an adverse impact on the decorative surface appearance.

3.5.3 after the welding is completed, the outlet should be adjusted.

3.6 surface treatment:

3.6.1 outlet surface treatment, design and operating requirements should be met, depending on choice of materials such as paint, spray, oxidation and other means.

3.6.2 If outlet bigger, should be taken in the appropriate part of the leaf and frame reinforcement measures.

3.7 air valve process:

Outer box material forming

Picking blade metal forming, welding Assembly testing → adjustments → spray →

Machine parts and other parts processing

→ Assembly actuator → products → test → factory

3.8 picking:

Air valve required for the production of different types of materials should be based on strict selection.

3.9 cutting, molding:

Frame and blade cutting machines should be used to complete, should be used in a special die.

3.10 parts processing:

Valve moving parts should be used in non-ferrous metal production, to prevent corrosion.

3.11 welding Assembly:

3.11.1 box welded using welding or gas welding methods, and to ensure that the limits of its welding deformation to a minimum.

3.11.2 air valve Assembly should be carried out in accordance with the procedures provided for, valve production workshop, regulating and braking device shall be accurate, flexible and reliable, and indicate the direction of valve opening and closing.

3.11. more than 3 blade damper blade should fit tightly, evenly spaced, lap.

3.11.4 Check shaft must be flexible, disc shut tightly, the material of the shaft are not prone to corrosion.

3.11.5 fire damper required for the production of steel thickness shall not be less than 2mm, rotating parts should be flexible at all times. Fuse for the approval and inspection of regular products, tolerances of its melting point temperature is-2 degrees Celsius.

3.12 air valve should be adjusted and tested after Assembly is complete, and embalmed according to requirements.

3.13 if the air valve size is too large, can be cut into several small valves production.

3.14 fire valves in the valve body production is completed and tested one by one to be packaged with implementing agencies.

3.15 cover such processes:

Picking → → forming → assembled under factory → products → test →

3.16 picking:

Cover parts according to the different requirements can choose common steel, galvanized steel, stainless steel and PVC plate and other materials.

3.17:

According to the different cover types after setting out the material, and machining.

3.18 forming, Assembly:

3.18.1 cover parts of Assembly depending on the materials used and the application requirements, scuffing, welding and other means can be used, its methods and requirements described in the wind pipe making section.

3.18.2 used steam or other moist air canopy hood should be excluded in the appetite of condensed liquid measures.

3.18.3 exhaust hood should not be greater than 60 ° spread angle.

3.18.4 if required, should also be in the cover with a regulating valve, automatic alarm, automatic fire suppression, filtration, oil installations and equipment.

3.19 finished product testing:

Cover making size should be accurate, connection should be solid, with a shell there should be no sharp edges.

Hood 3.20 process:

Picking → → forming → assembled under factory → products → test →

3.21 hood of the production shall be carried out in strict accordance with the national standard.

3.22 the hood making use of galvanized steel, ordinary steel plate or other suitable material.

3.23 hood hood shape should be structured, rotate the center of gravity should be balanced.

3.24 hood cutting, forming and Assembly processes can see the wind pipe making section.

3.25 flexible pipe flow:

Picking material sewn → → → → flange Assembly

3.26 flexible tubes can use leather, canvas resin glass fabric, soft rubber, reinforced asbestos cloth and other materials.

3.27 flexible tube length for 150~250mm, not as a variable diameter tube.

3.28 after cutting sewing mechanical or manual mode can be used, but must ensure that the firm closely.

3.29 to moisture-proof, flexible tube brushes canvas painting the canvas, not brushing paint, prevent the loss of flexibility and scalability.

3.30, flexible pipe and flange assembled plates layering mode can be used, through a riveting combination, rivet spacing of 60~80mm.

3.31, flexible tubes should not appear distortion, flange on both sides should be parallel.

4 quality criteria

4.1 project:

4.1.1 size of various parts of the specification, must comply with the design requirements.

Inspection method: standard and Visual check.

4.1.2 damper must be shut tightly, rotating components must be of corrosion-resistant material, shell, valve plate material thickness is less than 2mm is strictly prohibited.

Inspection method: standard, observations and operational checks.

4.1.3 of various types of valve assembly must be dimensionally correct, leaves and shells without friction.

Inspection method: check.

4.1.4 clean system, such as the moving parts of the valve and lever, such as carbon steel plate production, must be galvanized, shaft is connected with the valve gap must be closed.

Inspection method: Visual check.

Clean 4.1.5 system flexible pipe materials used must not produce dust, airtight, smooth inner wall. Flexible pipes and ducting connections must be tight no leakage.

Inspection method: lighting and Visual check.

4.2 Basic project:

4.2.1 Assembly connections tight and solid, moving parts, flexible and reliable, elastic moderate.

Inspection method: lever and observe the examination.

4.2.2 air quality should be qualified, holes, slices, spread uniformly spaced, borders and blade straight and neat, smooth and beautiful.

Inspection method: observation and standard checks.

4.2.3 various dampers make opening and closing tags, leafy valve blade attached, lap, wheelbase deviation is less than 1mm, valve plate and the handle in the same direction.

Inspection method: observation and standard checks.

4.2.4 cover production. Hood size deviation should be less than 2mm per meter, connect firmly, without sharp edges.

Inspection method: observation and standard checks.

4.2.5 hood production size deviation of not more than 2mm per meter, regular shape, rotate hood balance.

Inspection method: observation and standard checks.

4.2.6 tight moderately flexible tube length comply with design requirements and specifications provided, no cracking, no distortion.

Test method standard and Visual check.

4.3 allowable deviation:

Air making size tolerances and the test method should meet the requirements of table 4-19.

Air making size tolerances and inspection methods table 4-19

Project tolerance (mm) test method

1

2

3 dimensions

Round difference between maximum and minimum diameter

Difference between the two diagonals of the rectangle 2

2

3 foot check

The diameter of the standard 90 ° to each other

Standard check

5 finished product protection

5.1 product should be stored in a rain, snow level area on the measures, and neatly.

5.2 draught product protection measures should be taken to protect decorative surfaces from damage.

5.3 fire damper actuators should be retro-cover, to prevent injury to the body or the loss.

Over more than 5.4 protection of control valve to adjust the connecting rod, keep nuts in a tightened State.

5.5 in the process of loading and unloading, transport, installation, commissioning, should pay attention to protection of the finished product.

6 quality problems to be noticed

6.1 air inlet is the decorative surface scratches easily, in the process of assembling on the operating table mats with rubber plates and other soft materials.

6.2 good should be calculated according to the specifications of the valve air valve blade blade number and width dimensions.

6.3 fabrication of air valve, ventilation, regular, flat, all kinds of size deviation control within the allowed range.

6.4 parts the moving parts of the product, after the painting will produce poor maneuverability, should pay attention to each other with the size in the process.

6.5 products in the production process of sheet metal connections must be firm and reliable, particularly fire valves products.

6.6 fire products pay attention to blade and body clearance in order to ensure air tightness requirements.

6.7 in the install process, Flex tube as a leveling will not find connection tube or reducer to use.

7 quality records

7.1 inspection projects and inspection record form.

7.2 making section for quality inspection and assessment of the Department table.

7.3 the metal duct fabrication section, quality inspection and evaluation form.

On the installation process

1 scope

This technology is applicable to rated load 5000kg and below rated speed 3M/s and the following types of Chinese-made traction lifts for installation works.

2 construction preparation

2.1 devices, materials requirements:

2.1.1 specification shall conform to the design requirements, full, firm, and free from distortion and damage.

2.1.2 to guide and fixing screw for guide specifications, quality, quantity shall conform to the requirements.

2.1.3 adjusting shims should meet the requirements.

2.2 the main tools:

Chain, wire rope, wood side.

2.3 operating conditions:

2.3.1 for DIN rail mounting, adjustment, after acceptance, dismantled a local scaffolding stalls on the ground floor in order to be able to enter the shaft in place.

2.3.2 in hoistway tidy line, lighting and other welding, convenience of operation site.

3 operational processes

3.1 process:

Lifting preparation before hoisting the heavy framework → work → guide → boot installation, adjustment of the weights is installed and fixed

3.2 lifting preparations:

3.2.1 in the corresponding position on the scaffold (to facilitate lifting the frame and mount Tuo block for example) installation platform (Figure 5-32).

3.2.2 in the proper height (for easy lifting on whichever) two heavy rail bracket attach the wire rope, wire rope Center hung a chain. Steel wire rope should be tied to the guide rail bracket, is not directly tied to the Rails to avoid rail force and displacement or deformation.

3.2.3 in the buffer on each side of a 100mmx100mm wood side. Wooden height C=A+B+ distance (Figure 5-33).

The distance shown in table 5-8.

越 程 距 离 表5-8

Lift the rated speed (m/s) buffer-overrun distance (mm)

0.5~1.0

1.5~3.0 spring

Hydraulic 200~350

150~400

3.2.4 If the guide shoe for spring-mounted or stationary, to two of the same side of guide shoe removed. Guide roller, to four guide shoe removed.

3.3 the hoisting the framework:

3.3.1 the framework shipped to platforms, wire rope pull on rope hitch plate and chain hook together (Figure 5-34).

3.3.2 operation pour chain, slowly will on heavy framework hanging up to scheduled height, for side with spring type or fixed type guide boots of on heavy framework, mobile on heavy framework, makes its guide boots and the side guide anastomosis and keep contact, then gently relax pour chain, makes on heavy frame smooth firm to placed in prior support good of wood party Shang, not loaded guide boots of on heavy framework fixed in wood party Shang Shi, should makes framework two side and guide end surface distance equal.

3.4 installation, adjustment to the Guide:

3.4.1 stationary guide installation to ensure the lining and clearance of rail-side upper and lower line if it does not meet requirements to be used to adjust (Figure 5-35). 3.4.2 in prior to installing the spring-loaded guide roller, guide roller adjusting nut should be tightened to the maximum, no clearance between the Guide and guide shoe rack, which makes it easier to install (Figure 5-36).

3.4.3 If the guide roller slider-lined upper and lower inconsistent with track-side side gap, between Guide and counterweight frame shim adjustments, adjustments with stationary guide roller.

3.4.4 install roller guide shoes flat, roller guide after pressing rollers on either side should be equal to the amount of pressure spring, compressed size should be as stipulated in the factories. If no provisions are adjusted according to the usage pressure moderate front wheel and road surface compaction, wheel alignment guide from the Center Center (Figure 5-37).

3.5 installation and fixing of the weights:

3.5.1 into a corresponding number of the weights. Number of weights should be calculated according to the following formula:

Mounted on blocks =

3.5.2 design according to manufacturer requirements put on the block mounts. Figure 5-38 for the flapper mounts.

4 quality criteria

4.1 project:

The upper and lower guide roller should be in the same vertical line, skew, twist is not allowed.

4.2 Basic project:

Guide roller Assembly should comply with the following requirements:

4.2.1 using a rigid structure, able to guarantee the normal operation, and two rail ends with two guide surfaces and is not more than 2.5mm.

4.2.2 using the flexible structure, able to guarantee the normal operation and end face with guide roller slider surface without gaps, guide shoes spring telescopic range is less than 4mm.

4.2.3 use roller guide roller guide does not skew, even pressure, Center, and in contact with the Rails face even on the entire flange width (see 3.4).

Inspection method: observation and standard checks.

5 finished product protection

5.1 the guide shoe after installation, using things like old cloth for protection, so as to avoid dust residue into the boot lining, affect its service life.

5.2 construction should pay attention to avoid falling objects to prevent smashing guide shoes.

5.3 the framework of transport, lifting and loading Tuo block process, be careful, do not hit have been renovated floors, walls and Rails and other facilities, if necessary, to take the appropriate protection measures.

6 quality problems to be noticed

6.1 boot after installation and adjustment, each screw must bear in prison.

6.2 screw hole location if the individual does not meet the installation requirements, and can be resolved. Never allow empty without it.

6.3 in heavy lifting, don't touch the baseline, so as not to affect the installation accuracy.