PVC纏繞管在使用中，要想它的質(zhì)量有所保障，首先一定要是產(chǎn)品的材料要好，其次就是工藝上要過關(guān)，如果產(chǎn)品整體來說不夠結(jié)實(shí)，那么對(duì)于其安全系數(shù)就會(huì)大大降低，所以說一定要在使用前，做好相應(yīng)的檢測(cè)，確保它的質(zhì)量是否達(dá)標(biāo)。Inthe use of PVC winding pipe, in order to ensure its , firstof all, the material of the product must be good, and then theprocess must pass. If the overall product is not strong enough,then its safety factor will be greatly reduced. Therefore, it isnecessary to do a good job of corresponding detection before use toensure whether its is up tostandard.1、內(nèi)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(jì)，它測(cè)試非?？焖佟⒑?jiǎn)便，適于對(duì)管材做快速無損的合格檢驗(yàn)。1.W-b75 type Vickers hardness tester can be used for the annealedpipe with inner diameter more than 6.0 mm and wall thickness lessthan 13 mm. The test is very fast and simple, which is suitable forquick and non-destructive inspection ofpipes.2、PVC纏繞管內(nèi)徑大于30mm，壁厚大于1.2mm的，采用洛氏硬度計(jì)，測(cè)試HRB、HRC硬度。管的內(nèi)徑大于30mm,壁厚小于1.2mm的產(chǎn)品，采用表面洛氏硬度計(jì)，測(cè)試HRT或HRN硬度。2.If the inner diameter of PVC winding pipe is greater than 30mm andthe wall thickness is greater than 1.2mm, the hardness of HRB andHRC shall be tested by Rockwell hardness tester. For products withinner diameter greater than 30mm and wall thickness less than1.2mm, hardness of HRT or hrn shall be tested by surface Rockwellhardnesstester.3、內(nèi)徑小于0mm，大于4.8mm的產(chǎn)品，采用管材專用洛氏硬度計(jì)，測(cè)試HR15T硬度。當(dāng)不PVC纏繞管內(nèi)徑大于26mm時(shí)，還可以用洛氏或表面洛氏硬度計(jì)測(cè)試管材內(nèi)壁的硬度。3.For the products with inner diameter less than 0 mm and greaterthan 4.8 mm, the hardness of hr15t is tested by special Rockwellhardness tester. When the inner diameter of non PVC winding pipe ismore than 26mm, the hardness of inner wall of pipe can be tested byRockwell or surface Rockwell hardnesstester.纏繞管的特點(diǎn)就是熱態(tài)纏繞成型熔縫質(zhì)量高，它從擠塑機(jī)口模擠出的處于熔融狀態(tài)的平料帶和U型料帶，按預(yù)定的位置均勻的纏繞在加熱的滾筒模具上，保證了結(jié)構(gòu)壁管熔接縫質(zhì)量。特別是結(jié)構(gòu)設(shè)計(jì)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。Thecharacteristic of the winding pipe is the high of themelting seam formed by the hot winding. The flat and U-shaped tapeextruded from the die of the extruder are evenly wound on theheated roller mould according to the predetermined position, thusensuring the of the weld joint of the structural wall pipe.Especially in the structural design, the fusion joint of the flattape is covered by the polyethylene coated support pipe, whichimproves the overall external pressure resistance of theproduct.