HDPE(高密度聚乙烯)管道连接方法综述

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N [$E_)}]a5zH0常用的HDPE管道连接方法有:对焊连接、电焊管箍连接接件连接、带密封圈的承插式套管连接、丝扣连接法、线性伸缩承插管连接、法兰连接法。这些连接方法各有各的性能特点,使用场合、安装也不尽相同。

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一.对焊连接中国环境保护网9hDp7bC4m} [

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对焊连接适用所有管径从φ32-315mm的管件。该连接方法的性能特点是:刚性连接、不可拆装、抗拉力。中国环境保护网Z/K H m{K-gl7t

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对焊连接是一种最简单的管件连接方法,它为整个系统的预制安装提供了许多方便有利的前提条件,且不需其它部件。因而,无论预制安装是在现场或是在车间都可以用对焊连接。中国环境保护网&B%@x!eX8Y

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对焊的焊接断面很小,焊接边缘不会干扰管道,管道内部截面也没有任何变化。对焊接面容许的厚度近乎与管壁厚度一样,所以也不浪费管材。通过对焊连接法,管子长度和弯头连接处都能得到充分利用。中国环境保护网2b&Wxe y+v OU,sG'o7?

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管径<φ75mm时可采用手动焊接法;采用电焊机焊接,管径范围一般为φ40-315mm。

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[S6HM X w*P8_0图2. 手动焊接法

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0\$jCt p8r0二.电焊管箍连接件连接法

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