[1]徐广印.聚乙烯熔体流动速率对3PE涂层厚度的影响[J].焊管,2012,35(3):56-59.[doi:1001-3938(2012)03-0056-04]
 XU Guang-yin.The Effect of Polyethylene Melt Flow Rate(MFR)on 3PE Coating Thickness[J].,2012,35(3):56-59.[doi:1001-3938(2012)03-0056-04]
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聚乙烯熔体流动速率对3PE涂层厚度的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
35
期数:
2012年第3期
页码:
56-59
栏目:
会议专辑
出版日期:
2012-03-28

文章信息/Info

Title:
The Effect of Polyethylene Melt Flow Rate(MFR)on 3PE Coating Thickness
文章编号:
1001-3938(2012)03-0056-04
作者:
徐广印
(宝钢股份钢管条钢事业部,上海 201900)
Author(s):
XU Guang-yin
( Baoshan Iron & Steel Co., Ltd. Tube, Pipe and Bar Business Unit, Shanghai 201900, China)
关键词:
UOE焊管3PE涂层厚度聚乙烯熔体流动速率(MFR)
Keywords:
UOE pipe 3PE coating thickness polyethylene melt flow rate
分类号:
TG174.46
DOI:
1001-3938(2012)03-0056-04
文献标志码:
B
摘要:
简要介绍了3PE防腐层的基本构成及国内标准对各防腐层厚度的一般要求。对UOE焊管3PE涂层管体与焊缝区域涂层厚度差异情况进行了分析,结合3PE涂层涂敷的包覆、挤压过程,认为聚乙烯专用料熔体流动速率(MFR)是引起聚乙烯层厚度差异的一个重要因素,应根据涂料熔体流动特性确定最佳的涂覆温度,使管体与焊缝区域的涂层厚度差异尽可能减小。实际生产证实了这一结论,这样可以减少涂料的单耗,降低涂层加工成本。
Abstract:
In this article, it briefly introduced basic structure of 3PE coating and the general requirements for coating thickness in China domestic standard. After analysis on the thickness difference between 3PE coating of UOE pipe body and HAZ, combined with coating and extrusion procedure of 3PE coating, it considered that the MFR of special polyethylene is an important factor caused the difference of PE thickness. It should determine the optimal coating temperature according to flow characteristics of coating melt, as far as possible reduce thickness difference between pipe body and weld. The conclusion has been proved in the actual production. Thus it can save coating unit consumption and reduce processing cost.

参考文献/References:

[1] 秦德益.三层PE防腐新技术在埋地钢管中的应用[J].贵州化工,2007,8(04):1-3.
[2] GB/T 23257—2009,埋地钢制管道聚乙烯防腐层[S].
[3] 张其滨.管道3PE防腐层厚度指标的分析[J].管道技术与应用,2004(05):38-43.
[4] GB 3682—1988,热塑性塑料熔体流动速率试验方法[S].
[5] 冯晓东.钢管3PE防腐施工中聚乙烯原材料的消耗控制[J].油气储运,2011(04):303-304.
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备注/Memo

备注/Memo:
作者简介:徐广印(1981—),男,硕士,工程师,主要从事防腐工艺及防腐质量工作。
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