PVC纏繞管在使用中，要想它的質量有所保障，首先一定要是產品的材料要好，其次就是工藝上要過關，如果產品整體來說不夠結實，那么對于其安全系數就會大大降低，所以說一定要在使用前，做好相應的檢測，確保它的質量是否達標。In the use of PVC winding pipe, in order to ensure its quality, first of all, the material of the product must be good, and then the process must pass. If the overall product is not strong enough, then its safety factor will be greatly reduced. Therefore, it is necessary to do a good job of corresponding detection before use to ensure whether its quality is up to standard.1、內徑在6.0mm以上，壁厚在13mm以下的退火管材，可以采用W-B75型韋氏硬度計，它測試非常快速、簡便，適于對管材做快速無損的合格檢驗。1. W-b75 type Vickers hardness tester can be used for the annealed pipe with inner diameter more than 6.0 mm and wall thickness less than 13 mm. The test is very fast and simple, which is suitable for quick and non-destructive qualification inspection of pipes.2、PVC纏繞管內徑大于30mm，壁厚大于1.2mm的，采用洛氏硬度計，測試HRB、HRC硬度。管的內徑大于30mm,壁厚小于1.2mm的產品，采用表面洛氏硬度計，測試HRT或HRN硬度。2. If the inner diameter of PVC winding pipe is greater than 30mm and the wall thickness is greater than 1.2mm, the hardness of HRB and HRC shall be tested by Rockwell hardness tester. For products with inner diameter greater than 30mm and wall thickness less than 1.2mm, hardness of HRT or hrn shall be tested by surface Rockwell hardness tester.3、內徑小于0mm，大于4.8mm的產品，采用管材專用洛氏硬度計，測試HR15T硬度。當不PVC纏繞管內徑大于26mm時，還可以用洛氏或表面洛氏硬度計測試管材內壁的硬度。3. For the products with inner diameter less than 0 mm and greater than 4.8 mm, the hardness of hr15t is tested by special Rockwell hardness tester. When the inner diameter of non PVC winding pipe is more than 26mm, the hardness of inner wall of pipe can be tested by Rockwell or surface Rockwell hardness tester.纏繞管的特點就是熱態纏繞成型熔縫質量高，它從擠塑機口模擠出的處于熔融狀態的平料帶和U型料帶，按預定的位置均勻的纏繞在加熱的滾筒模具上，保證了結構壁管熔接縫質量。特別是結構設計中平料帶的熔接縫被聚乙烯包覆支撐管所覆蓋，提高了制品整體的抗外壓能力。The characteristic of the winding pipe is the high quality of the melting seam formed by the hot winding. The flat and U-shaped tape extruded from the die of the extruder are evenly wound on the heated roller mould according to the predetermined position, thus ensuring the quality of the weld joint of the structural wall pipe. Especially in the structural design, the fusion joint of the flat tape is covered by the polyethylene coated support pipe, which improves the overall external pressure resistance of the product.
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