Maintenance tarpaulin technical requirements

Today, the editor of Zhongshan tarpaulin ZHONGSHAN LINYANG PLASTIC CO.LTD will take you to see the basic requirements of maintenance tarpaulin technology. 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 no exposed patch grinding. 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 use double-thread patching, 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 should be uniform and straight, the needle size should be 14-18 stitches/100mm, and the back stitches should be no 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 sutures close to the pressing rope shall not be less than 45mm. The return needle at the needle stop should not be less than 50 mm. 6 After the repair, 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. Tarpaulin rope The rope on the 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 times, 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 it is important to twist them together. The technical indicators of tarpaulin eye rims for replacing eye rims should comply with the '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 socket cannot be replaced by the large triangle cloth, the small triangle cloth or the reinforcing rib, an additional pad should be added. Tarpaulin marking painting The marking on the repaired cloth should be clear. The size of the painted marks should meet the requirements of 'Technical Conditions for D-Type Tarpaulins for TrucksKeywords: Zhongshan tarpaulin, pvc tarpaulin, plastic tarpaulin

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