奥氏体304不锈钢钢管A-TIG焊接工艺研究

发布时间：2018-03-23 01:08

本文选题：不锈钢钢管　切入点：A-TIG焊　出处：《钢管》2016年05期 　论文类型：期刊论文

【摘要】：以Φ45 mm×8 mm规格奥氏体304不锈钢钢管为研究对象,采用A-TIG焊(添加活性剂的钨极氩弧焊)进行对接焊接工艺试验,研究不同焊接起始点对焊缝成型的影响,并检测外观质量符合要求的焊件的性能和微观组织等。分析认为:采用A-TIG焊接工艺焊接Φ45 mm×8 mm规格奥氏体304不锈钢钢管时,可在不开坡口、不填丝的情况下,实现一次性焊透,并达到单面焊双面成型的目的;焊缝组织为奥氏体+铁素体,其组织与未添加活性剂时的一致,但添加活性剂可明显改善组织性能;焊接接头的性能满足标准要求。
[Abstract]:Taking 桅 45mm 脳 8mm austenitic 304 stainless steel pipe as the research object, A-TIG welding (TIG welding with active agent) was used to study the effect of different starting points on weld forming. The properties and microstructure of welded parts with satisfactory appearance quality were tested. It was found that when the 桅 45mm 脳 8mm austenitic 304 stainless steel pipe was welded by A-TIG welding process, the one-off welding penetration could be realized without opening the groove and without wire filling. The microstructure of weld is austenitic ferrite, but the addition of active agent can obviously improve the microstructure and properties of the welded joints, and the properties of welded joints meet the requirements of the standard.
【作者单位】：西安石油大学材料科学与工程学院;
【分类号】：TG457.11

【相似文献】