Tarpaulin maintenance technical requirements and tarpaulin production process

Maintenance tarpaulin technical requirements: The basic requirements are not allowed to have leaks and leaks. It is not allowed to use needle seams to replace welding or glue repair. The shape of the patch is usually round or square, and the four corners of the square should be arcs. In case of extra-large cracks or holes, the distance between the periphery of the patch cloth and the periphery of the crack or hole can be more than 40mm according to the shape of the crack or hole. Welding repair or glue patch and tarpaulin bonding should be flat, close and firm, no desoldering, glue opening and warping, no agglomeration, and the patch should not be exposed. The break should be butted by hand, and it should be flat and aligned after the butt, and the stitch spacing should be 14-18 stitches/100mm. The width of the patch cloth to be glued and patched after manual butt is 100mm to 120mm. Holes cannot be rigidly docked. The bonding strength of the repaired place shall not be less than 25N/30mm, and the water-slung test of the repaired place shall not be allowed to seepage, smear or leak. The sewing machine patch should be double-stitched, the outer stitches and the periphery of the patch cloth should be left with a distance of 15mm to 20mm, and the distance between the two stitches should be 10mm. The suture is tight and straight, the needle size is 14-18 stitches/100mm, and the back stitches are not less than 3 stitches at the starting and ending points. The maintenance of the rope pressing cloth shall be made by two straight double-thread machines on both sides. The distance between the two stitches close to the pressing rope shall not be less than 45mm. The return needle at the needle stop should not be less than 50mm. 6 After repairing, the middle of the rope cloth should be properly arched to facilitate the passage of the waist rope. The machine repair needle eye should be coated with waterproof glue on both sides. Water seepage, smearing and water leakage are not allowed in the water hoisting test at the seam. The rope on the tarpaulin rope repaired cloth should not have broken strands, serious wear and insufficient length. The rope end should be tightly wound with ramie thread or polyester thread for five laps, then sewed for four stitches, and the end of the rope end should be thermally bonded or glued to ensure that it is not loose. When inserting end ropes, corner ropes and edge-covered ropes, there should be no less than 8 buckles at all insertion points, and the twisting is important. Tarpaulin eye rims The technical indicators of changing eye rims should comply with the provisions of 'Technical Conditions for D-Type Tarpaulins for Trucks'. The material is stainless steel, and the appearance should be flat and smooth. The eye rim should be firmly attached to the tarpaulin against the hemming rope. If the position of the eye rim cannot be placed in the large triangle cloth, the small triangle cloth or the reinforcing rib, an additional pad should be added. Tarpaulin markings The markings on the finished cloth should be clear. The size of the painted marks should meet the requirements of 'Technical Conditions for D-Type Tarpaulins for Trucks', and the handwriting should be clear, firm, and not smeared. The raw material of PE tarpaulin generally refers to the color striped cloth, that is, the PE film is coated on both sides of the PE woven cloth, and polypropylene is also used. The production process is: PE wire drawing - circular woven cloth - double-sided coating. In this way, the waterproof performance of the tarpaulin is poor. Generally, it is not guaranteed to not leak after using it once on the car, but its quality is light, and the clean PVC tarpaulin is polyester non-double-coated PVC paste resin. Because of the dipping process, the plastic tarpaulin There are PVC in the gap, and the waterproof performance is good. The production process: polyester cloth - dipping - drying - calendering - cooling - winding, now the carport above the car, the factory covered goods waterproof, the cargo station and other rainproof products are all Made of PVC coated cloth. Oxford cloth is a single-sided coating of PE or PP on polyester cloth or nylon cloth (generally not used for high price), which are generally modified materials. The production process is: polyester cloth - lamination - embossing - cooling - winding. The waterproof performance of Oxford cloth is not very good, and it is mainly used for luggage. Due to its high chemical stability, it can be used to make anti-corrosion pipelines, pipe fittings, oil pipelines, centrifugal pumps and blowers. The rigid board of PVC is widely used in the chemical industry to make the lining of various storage tanks, corrugated boards of buildings, door and window structures, wall decorations and other building materials. Due to its excellent electrical insulation properties, it can be used in the manufacture of plugs, sockets, switches and cables in the electrical and electronic industries. Tarpaulin In daily life, polyvinyl chloride is used to make sandals, raincoats, toys and artificial leather. Polyvinyl chloride is synthesized from acetylene gas and hydrogen chloride, and then polymerized. Has high mechanical strength and good corrosion resistance. It can be used to make waste gas sewage and detoxification towers, gas and liquid conveying pipes in chemical, textile and other industries, and can also replace other corrosion-resistant materials to make storage tanks, centrifugal pumps, fans and joints. When the plasticizer is added in an amount of 30% to 40%, soft polyvinyl chloride is obtained, which has high elongation, soft products, and good corrosion resistance and electrical insulation. Industrial packaging, agricultural seedling raising and daily raincoats, tablecloths, etc., can also be used to make acid and alkali resistant hoses, cable sheaths, insulating layers, etc.

One increasingly popular managerial tactic to improve problem-solving performance of PVC Tarpaulin is to increase the connectedness, or what academics call clustering, of the organization

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