管道内防腐补口的喷涂焊接法
To Coat the Internal Welding Seams by Spraying Welding Technique
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- DOI:
- 作者:
- 王青春
Wang Qingchun
- 作者单位:
- 华北油田建设二公司, 河北省任丘市 062552
- 关键词:
- 管道;内涂层;〔补口〕;合金钢粉末;焊接
- 摘要:
- 喷涂焊接法是管道内防腐补口的新途径，将耐腐蚀、耐高温的合金粉末喷涂在管口焊接热影响区内壁作内防腐层，管内壁其余部分仍喷涂防腐涂料，对接时用耐腐蚀材质焊材氢弧焊打底焊接，这样在管道接口处内壁便获得由合金涂层、耐腐蚀焊缝与防腐涂料涂层形成的连续、封闭的防腐层，有效地解决了管道内防腐补口的技术难题。
The spraying welding technique is a new way to coat the internal welding seams. Alloy powder of corrosion prevention and of high temperature resistance is sprayed on the heat affected zones near the pipe ends, while the rest parts of pipe wall are still coated with corrosion prevention coatings. Thereafter, using the argon arc welding technique, backing welds are made with anticorrosive electrodes or wires. Therefore a continuous sealing coating is formed on the internal wall of the pipes. The spraying and welding technologies are introduced in this paper.1994,4(4): 36-37,3 收稿日期：1993-11-24参考文献：
1 JB3168一82喷焊合金粉末技术条件
2 GHJ236- 82现场设备、工业管道工程施r及验收规范
3 GB / T131488--91不锈钢复合钢板焊接技术条件
4 中国机械〔程学会焊接学会.焊接手册.北京:机械工业出版社，1992