[1]谢 挺,廖青云.生产中影响钢管聚乙烯防腐层性能的因素[J].焊管,2019,42(2):63-68.[doi:10.19291/j.cnki.1001-3938.2019.2.011]
 XIE Ting,LIAO Qingyun.Discussion Factors Affecting on the Performance of PolyethyleneAnti-corrosion Layer in Production[J].,2019,42(2):63-68.[doi:10.19291/j.cnki.1001-3938.2019.2.011]
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生产中影响钢管聚乙烯防腐层性能的因素()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第2期
页码:
63-68
栏目:
经验交流
出版日期:
2019-02-28

文章信息/Info

Title:
Discussion Factors Affecting on the Performance of Polyethylene
Anti-corrosion Layer in Production
文章编号:
10.19291/j.cnki.1001-3938.2019.2.011
作者:
谢 挺廖青云
海隆管道工程技术服务有限公司, 上海200949
Author(s):
XIE Ting LIAO Qingyun
Hilong Pipeline Engineering Technology Service Co., Ltd., Shanghai 200949, China
关键词:
管道防腐聚乙烯防腐蚀涂层3LPE
Keywords:
pipeline anti-corrosion polyethylene anti-corrosion coating 3LPE
分类号:
TG174
DOI:
10.19291/j.cnki.1001-3938.2019.2.011
文献标志码:
A
摘要:
为了提高钢管聚乙烯防腐涂层质量,延长管线钢管使用寿命,降低安全风险,从防腐层原材料性能、涂层施工表面处理和涂层厚度要求等方面进行了试验分析,论证了影响聚乙烯防腐层性能的重要因素。结果表明,环氧粉末密度范围为0.1 g/cm3、挥发分含量不超过0.2%、基材表面处理粗糙度不低于Sa2.5、锚纹峰值控制在70 μm左右、灰尘度不超过1级及环氧涂层厚度不低于120 μm等影响因素的有效控制,将成为提高3LPE涂层优异防腐性能的重要条件。
Abstract:
In order to improve the quality, prolong the service life of pipelines and reduce safety risks of polyethylene anti-corrosion coating, the experimental analysis was carried out from the aspects of raw material performance of anti-corrosion layer, surface treatment of coating construction and coating thickness requirements, and the effects on the performance of polyethylene anti-corrosion layer were demonstrated. At the same time, the important factors affecting the performance of polyethylene anti-corrosion layer were demonstrated. The test results show that the effective control of the influence factors such as the density of epoxy powder is 0.1 g/cm3, volatile content is not more than 0.2%, surface treatment of the substrate is not lower than Sa2.5, peak of anchoring is controlled at 70 μm, degree of dust is not more than 1 and the control of the epoxy coating thickness of not less than 120 μm will be the important conditions for improving the excellent corrosion resistance of the 3LPE coating.

参考文献/References:

[1] 赵君, 罗鹏, 滕延平, 等. 管道三层PE防腐层现场应用调查与分析[J]. 管道技术与设备, 2008, 16(6): 41-43.
[2] 鲁自界, 李劲, 周钟泉, 等. 环氧粉末涂料的固化机制研究[J]. 材料开发与应用, 2000, 15(2): 8-11.
[3] 王乐, 王硕, 李剑楠, 等. 埋地管道防腐层阴极剥离性能试验[J]. 河北联合大学学报, 2015, 37(4): 113-116.
[4] GB/T 23257—2017, 埋地钢质管道聚乙烯防腐层[S].
[5] AS/NZS 3862: 2002, External Fusion-bonded Epoxy Coating for Steel Pipes[S].
[6] 潘向东, 巴旭民. 热熔结环氧粉末涂料孔隙率的影响因素分析及控制[J]. 涂层与防护, 2018(4): 32-37.
[7] DS/EN ISO 21809—2011, External Coatings for Buried or Submerged Pipelines Used in Pipeline Transportation Systems—part 1: Polyolefin Coatings ( 3-layer PE and 3-layer PP ) [S].
[8] QCLNG-BB00-PLE-SPE-302000, Specification for External Line Pipe Coating[S].
[9] GB/T 18570.3—2005,涂覆涂料前钢材表面处理表面清洁度的评定试验第-3部分: 涂敷材料前表面灰尘度测定(压敏胶带法)[S].
[10] 龚敏, 张婷, 张国虎, 等. 影响埋地管道3PE防腐层剥离的因素探讨[J]. 全面腐蚀控制, 2011, 25(2): 10-12.

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备注/Memo

备注/Memo:

收稿日期:2018-11-22

作者简介:谢   挺(1986—),男,大学学士学位,工程师,NACE CIP 2检验员,主要从事表面处理、管道防腐涂层涂装、混凝土配重涂层涂装、现场维护等工作。

更新日期/Last Update: 2019-03-20