Monday, January 2, 2017

Carpet laid construction technology

Carpet laid construction
1 scope
The technology standard is applicable to hotels, restaurants, public places and residential indoor ground and floor laying carpet works.
2 construction preparation
2.1 material and main equipments:
2.1.1 carpet: roughly the market at present has the following four categories:
2.1.1.1 wool carpet: made of pure wool processing, divided into manual knitting and weaving.
2.1.1.2 non-woven carpet: pure wool is pure wool woven processing.
2.1.1.3 chemical fibber carpet: with polypropylene fiber or eyes nylon as raw material, after the tufting and woven into the surface of legal system, with sackcloth backing again.
2.1.1.4 synthetic fiber tufted carpet: PVC resin, plasticizer, etc., through mixing, with molding. The varieties, specification, color of carpet, main performance and technical indicators must meet the design requirements. Have factory qualified certification.
2.1.2 liner, liner varieties, specifications, performance and main technical indicators must meet the design requirements. Have factory qualified certification.
2.1.3 adhesive: non-toxic, no mildew, quick drying, when using the tensioner within 0.5 h doesn't seam, on the ground have sufficient bond strength, adhesive strip, construction is convenient, all can be used for carpet, carpet and carpet with the ground connection flat-fell seam binding. Generally USES natural latex added adhesive made of thickening agent, fungicide, etc.
2.1.4 agnail lathing: in 24 mm x 1200 mm x 6 mm plywood bar has two rows of inclined screw (spacing of 35 ~ 40 mm), and high strength steel evenly distributed on the total length of five (about 400 mm steel nail spacing, around about 100 mm from each side).
2.1.5 aluminum alloy article agnail; Used for carpet end the housetops, fixed and head role. Multi-purpose ground thru out the door or with other materials.
2.1.6 aluminum layering, appropriate USES thickness is about 2 mm aluminum alloy material, used for door frame under the ground, down the edge of the carpet, saved it from being kicked up or damage.
2.1.7 blanket cutting knives, cutting edge machine, carpet, maintain child (big tide son head, big tide on foot, small child), flat, turn the pier, drill, cutter, scissors, needle nose pliers, paint brush rubber pressure roller, electric iron, Angle square, ruler, small hammer, steel nails, nail, vacuum cleaners, trash can, sheng plastic containers, steel rule, tape, elastic line powder bag, light string cable, broom, tire lorry, dustpan, cotton silk, tool bag, slippers and so on.
2.2 operation conditions
2.2.1 before laying carpet, interior decoration must be completed. Indoor all heavy equipment are already in place and has set up a debug, operating normally, the professional, qualified and approved by check meet all the eligibility criteria.
2.2.2 laying carpet on the ground at the grass-roots level of the bottom must be do moistureproof layer (such as felt two oil moistureproof layer; on the other two type rubber asphalt a cloth moistureproof layer; linoleum moistureproof layer, the underlying all brush priming oil a cold, etc.), and doing moistureproof layer above 50 mm thick fine stone concrete 1, 2, 3, and 1:1 cement sand compaction cast light, surface level off, smooth, clean, should have a certain strength, moisture content is not greater than 8%.
2.2.3 laying of the floor carpet at the grass-roots level, usually in the cement floor, can also be wood or other material of floor. For surface level off, smooth, clean, such as oil, must be with acetone or turpentine rub-up. Such as cement floor, should have a certain strength, moisture content is not greater than 8%.
2.2.4 carpet, padding and adhesive after entry, should check check the quantity, variety, specifications, color, design meets the design requirements, such as, should according to the varieties, specifications, respectively stored in dry warehouse or in the room. Before use before paving, colourful, number, number to be laid in the access.
2.2.5 should be prior to laying carpet the skirting around the room, corridor, etc. Skirting board under the mouth should be left the ground around 8 mm, so that the carpet burrs under the mask into the skirting board.
2.2.6 large-area construction should be released before the construction details, and make a sample, the quality inspection department after appraisal is eligible, before organization according to the requirements of model construction.
3 operation process
3.1 process:
And basic level processing line, set of square, frame, positioning and clipping to nail article tapestry agnail board, carpet

Laying pad - laying carpet - details and cleaning
3.2 activity type laying: refers to a method without adhesive paste at the local level, neither with the fixed laying at the grassroots level is round the corner, hsiu-chi can. Generally applies only to decorative craft carpet laid.
3.3 fixed laying operation process
3.3.1 basic level processing: laying carpet at the grass-roots level, the general is the cement ground, also can be the ground of the wood or other material. For surface level off, smooth, clean, such as oil, must be with acetone or turpentine rub-up. Such as cement floor, should have a certain strength, moisture content is not greater than 8%, smooth surface deviation is not more than 4 mm.
3.3.2 rainfall distribution on 10-12 lines, set square, frame, positioning: we will strictly in accordance with the design drawings of the specific requirements of different parts and room to play line, set of square, frame, the regulations and requirements such as drawing, strictly according to the diagram construction. No specific requirements such as drawing, should be symmetrical to find and play line, positioning can be laid.
3.3.3 cutting carpet, carpet cutting shall be carried out in more wide local centralized and unified. Must be accurate measurement room size, and checked in to the room and the carpet type number. According to room size, shape, and then use cutting edge cutting carpet under the expected, the length of each piece of carpet than room of about 2 cm long, width to cut the size of the carpet edge line after calculation. Spring wire cut edges, and then to push cutting knife from the blanket back cutting, cutting good number rolled into a roll, after joins into the room, large room hall clipping flat-fell seam should be in the construction site.
3.3.4 nail agnail board tapestries, skirting the edge around the room or corridor, and the agnail board with high strength masonry nail nailed on the grassroots (nail towards the direction of the wall), the spacing of about 40 cm. Agnail board should leave the skirting board surface 8-10 mm, in order to nail up agnail board.
3.3.5 laid liner, liner point glue method is used to brush 107 glue or poly vinyl acetate emulsion, stick on the ground at the grass-roots level, leaving the agnail board around 10 mm.
3.3.6 laying carpet
3.3.6.1 stitched carpet: will lay a good carpet virtual shop on the bed, then rolled up carpet, suture in joining together. Suture, with plastic tape in stitching, do not cut or protect the joint recalls, then put the carpet tile, with curved seams in do nap reinforced stitching.
3.3.6.2 stretching and fixed carpet: first the carpet a long edge fixed on the agnail board, flash mask to the skirting board, use carpet maintain child stretch the carpet. Stretch, hold hands down carpet, with my knee hit the carpet, step by step from one side to the other side. As times failed to trim, should repeat stretch, until level. Then put the carpet on another agnail board, cover good burrs. Long out of the carpet, use knife cut. One direction tensile, and then to another direction tensile, until the four sides fixed on the agnail board.
3.3.6.3 adhesive for bonding fixed carpet: this method is generally not put a liner (more for chemical fibber carpet), carpet flat-fell seam of first line a 10 cm wide linen band, with adhesive paste, then put the adhesive coating on the base, timely, fixed carpet. This method can be divided into full and local bond the two methods. Hotel rooms and residential bedroom can use local bond, appropriate USES full stick in public places.
When spread glue carpet, in the first room after coating adhesive, shop, put the carpet that has cut in advance, and then use carpet tide son out to the sides, then along the wall to brush two adhesive, carpet will flatten mask edge.
Batten 3.3.7 details and clear: pay attention to the processing and door frames, corridors and vestibular, ground and tube root, central heating, tray, corridors and bathrooms threshold, stair step and the corridor platform, inside door and outside door, two different color carpet and carpet in areas such as the skirting board of the set of cut, fixed and mask edge work, and must be bonded firmly, should not have appeared, such as article added after the break. Carpet laid, fixed convergent article, application of vacuum cleaner clean, and the blanket face loss of villi and thoroughly cleaned.
4 quality standards
4.1 ensure projects:
4.4.1 all kinds of carpet material, specifications, technical indicators must meet the design requirements and norms.
4.1.2 carpet and fixed at the grass-roots level must be strong, no edge, turning up phenomenon.
4.2 the basic items:
2 carpet surface smooth, no crinkle, beat phenomenon.
4.2.2 flat-fell seam smooth, dense, in the line of sight is not within the scope of flat-fell seam.
Holdings of carpet and other ground back or junction should be straight.
4.2.4 the nap of carpet should be smooth, clean surface, no oil debris, etc.
5 finished product protection
5.1 should pay attention to protect the procedure has been completed on the breakdown of division of the engineering quality of the finished product. In transportation and construction operations, should pay attention to protect the door window frame, especially for aluminum alloy door window frame, wallpaper skirting board and other products no damage and pollution. Measures should be taken to protect and fixed.
5.2 carpet, etc. After the material approach, attention should be paid to pile up, transportation, and in the process of operation. Should avoid the wind rain, be moistureproof, fire prevention, prevent trample, pressure, etc. Should strengthen management by designated personnel.
Article 5.3 should pay attention to agnail board tapestries and steel nails and so on use and storage of work, especially pay attention to timely collect and clean up the cutting down of fraction, agnail board, tapestries and scattered steel nails, avoid nail foot, cut the carpet and scattered steel nail bedding under the carpet cushion layer and layer, otherwise must rework to resurface.
5.4 to seriously implement the post responsibility system, strictly follow the system process the handover. As each working procedure are completed, it should be clear in time the carpet of sundry, with brush by the operating pollution area in a timely manner. And pay attention to close the doors and Windows and close the faucet in the bathroom, beware of carpet is rain and blisters.
5.5 operating site no smoking, smoking to designated smoking room. Should be started, ready to work according to the size of the engineering task, designated persons for fire control, security and finished product protection supervision and give them wear striking armbands and strengthen patrol work, to the certificate at the same time, strictly control the non-working personnel to enter.
6 should pay attention to quality problems
6.1 press edge bonding loose and moldy phenomenon such as: carpet, adhesive, such as material, specifications, technical indicators, to have the factory quality certificate, when it is necessary to do a second interview. Should be inspected carefully before they are used, and try to make the work shop.
Carpet surface uneven, crinkle, beat 6.2: the main problems occurred in laying carpet is when, not seriously in accordance with the operation process of stitching, stretching and fixed, adhesive for bonding fixed requirements to do.
6.3 flat-fell seam uneven, false: especially the carpet and other ground back or junction, such as the door, corridor and vestibular, spelling a flower, and transformation in areas such as the material, tend to appear flat-fell seam uneven, false. So should pay special attention to these areas when the construction of grass-roots itself to control whether level off, such as serious should rework processing, such as the problem is not too big, can add liner methods use adhesive to stick gasket car, at the same time to the surface of cushion flat-fell seam place and stitch work well, must be tight, compact, sturdy, brush adhesive glue is firm and full.
6.4 because do not pay attention to when coating adhesive, skirting board, door frame, door and floor spring tend to pollution, etc., should be earnest careful operation, and take the protection of the portable mobile baffle or cleaning brush and other measures to protect the finished product at any time with the pollution.
6.5 backwater heating furnace, air conditioning and riser root and bathroom and corridor shall be equipped with waterproof candy, etc., to prevent leakage, lest will have laid a good carpet products soaking wet damage. The matter must be solved before laying carpet.
7 quality records
This technology standard should have the following quality records:
7.1 the carpet and liner factory certificate.
7.2 item of carpet laid quality test assessment data.

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