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发明公开
CN1944036A 双螺旋线HDPE管的制造方法 无效 - 撤回

双螺旋线HDPE管的制造方法
摘要：
本发明涉及一种双螺旋线HDPE管的制造方法，其特征在于它是将预制好的HDPE条缠绕在挤出的HDPE管上，依靠HDPE管自身热量使HDPE条与其熔融粘结，制作成双螺旋线HDPE管。本发明具有如下优点：1.无需改变塑料挤出模具的结构，无需配置复杂的生产线，生产成本低；2.充分利用HDPE圆管自身热量，将HDPE条与HDPE圆管粘接牢固，节约能源；3.HDPE条预制成形，其外露部分硬度高，不易变形，质量稳定。
摘要（英）：

The present invention relates to method of producing double spiral HDPE pipe, and features that prefabricated HDPE strip is wound onto extruded HDPE pipe and fusion adhered to the HDPE pipe by means of the heat of the extruded HDPE pipe so as to for the double spiral HDPE pipe. The present invention has the following advantages: no need of changing the structure of available extruding mold, no need of complicated production line, low cost, best utilization of the heat of the extruded HDPE pipe for firm adhesion, saving in power, high hardness and less deformation of prefabricated HDPE strip, and stable product quality.

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