薄壁不锈钢管道焊接工艺探讨
Discussion on Welding Process of Stainless Steel Pipeline with Thin Wall
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- DOI:
- 作者:
- 李志娟, 张志强, 肖广红
LI Zhi-juan
- 作者单位:
- 中国石油天然气第一建设公司,河南洛阳 471023
China Petroleum First Construction Co.,Luoyang 471023,China
- 关键词:
- 薄壁不锈钢管;焊接;氧化;保护气体
thin wall stainless steel pipe;welding;oxidation;protection gas
- 摘要:
- 文章阐述了在薄壁不锈钢管道的焊接过程中,采用氩气和氢气的混合物作为不锈钢管焊接保护气体以及采取相应配套的一系列工艺措施,可有效地避免薄壁不锈钢焊缝的背面氧化,使不锈钢焊缝内表面不需要进行酸洗钝化就能达到明亮的银白色,提高了不锈钢的耐腐蚀性能和使用寿命。
In the welding course of a stainless steel pipeline with thin wall,the method using the mixed gas of argon and hydrogen as shielding gas and adopting a set of matching technological measures can effectively avoid the back oxidation of welds of the stainless steel and make the internal weld surface bright silvery white with no need of acid pickling and passivating.Thus the anticorrosion capacity and service life of the stainless steel are increased.2009,4(4): 78-78 收稿日期：2008-6-10分类号：TE969;TG457.6作者简介：李志娟(1973- ),女,河南洛阳人,工程师,1996年毕业于西安石油学院,现从事技术质量管理工作.?