铝镁合金料仓的焊接技术
Welding Technique of Aluminum-Magnesium Alloy Stock Bin
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- DOI:
- 作者:
- 史宇1, 那国良2, 胡克倩3
SHI Yu1, Na Guoliang2, Hu Keqian3
- 作者单位:
- 1. 中国化学工程第十一建设公司第一工程公司, 河南开封 475002;
2. 中国石油大庆炼化公司, 黑龙江大庆 163411;
3. 深赛尔实业有限公司, 广东深圳 518116
China Eleventh Chemical Construction Company, Kaifeng 475002, China
- 关键词:
- 铝镁合金;焊接特点;焊接工艺
aluminum-magnesium alloy;welding characteristics;welding process
- 摘要:
- 铝镁合金可焊性差，很容易出现各种焊接缺陷，尤其是气孔、根部未熔合等。针对大庆炼化公司30万t/a聚丙烯工程的8台铝镁合金料仓的焊接，通过深入分析铝镁合金材料的焊接特点，制定了科学合理的焊接工艺。文章详细介绍了本次焊接所采用的焊接方法、焊接电源、焊接工艺参数、预热温度以及操作要点。该项工程经过RT和UT探伤检验，焊接一次合格率达86%以上。
Aluminum-magnesium alloy has a poor weldability and often appears various defects,especially porosity,non-melting root zone,and so on.Aimed at the welding job of 8 sets of aluminum-magnesium alloy stock bins of a 30×104 t/a polypropylene project in Daqing Refinery Company,the welding characteristics of aluminum-magnesium alloy material are analyzed deeply and the welding process is worked out.Welding method,electric power,technological parameters,preheating temperature and key operation matters used for this project are introduced in this paper.RT and UT defect detections show the primary welding qualification reaches more than 86%.2006,6(6): 61-63 收稿日期：2006-2-19分类号：TE969.06作者简介：史宇（1969- ） 男，高级工程师，1994 年毕业于郑州大学，一直从事施工及技术管理工作。参考文献：
[1] JB/T 4734-2002,铝制焊接常压容器[S].
[2] SH 3513-2000,石油化工铝制料仓施工及验收规范[S].
[3] 陈祝年.焊接工程师手册[M].北京:机械工业出版社,2002.