304L不锈钢氩弧焊接工艺特点及常见缺陷的防治措施
Technological Features of 304L Stainless Steel Argon Arc Welding and Defect Prevention Measures
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- DOI:
- 作者:
- 陈连山, 陈兵辉, 安金平
CHEN Lan-shan
- 作者单位:
- 中国石油天然气管道三公司, 河南中牟 451450
CPP No.3 Company, Zhongmu 451450, China
- 关键词:
- 奥氏体不锈钢;晶间腐蚀;危险温度区;焊接线能量
austenitic stainless steel;intergranular corrosion;dangerous temperature zone;welding linear energy
- 摘要:
- 304L不锈钢(ASTM标准)为奥氏体不锈钢,属于超低碳级不锈钢,具有良好的综合性能,是目前工业上应用最广泛的不锈钢。文章通过现场实际操作,研究总结了304L不锈钢焊接的工艺特点,针对晶间腐蚀、层间未熔合、引弧夹钨、收弧缩孔等问题提出了具体的解决办法和注意事项,有效地解决了焊接质量问题。
304L stainless steel ( ASTM standard ), as an austenitic stainless steel with ultra-low carbon, has excellent synthetic functions and is the most widely applied stainless steel in the world. Based on the site practice and research work, this paper summarizes the technological features of 304L stainless steel welding, and puts forward concrete methods and matters for attention to resolve welding problems such as intergranular corrosion, interlaminar non-fusion, tungsten inclusion while striking arc and shrinkage cavity while arc suppression. So that, the welding quality is effectively improved.2008,3(3): 49-50 收稿日期：2007-11-5分类号：TG444.74作者简介：陈连山（1963-），男，辽宁葫芦岛人，高级工程师，毕业于中国石油大学，从事油气管道项目及技术管理工作.参考文献：
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[2]高忠民.电焊工基本技术[M].北京:金盾出版社,2000.
[3]中国机械工程学会焊接学会.焊接手册[M].北京:机械工业出版社.2003.