炼油厂Cr5Mo工艺管线同质焊接接头与异质焊接接头的比较与选择  

A Study on the Joints of Cr5Mo Pipeline Welded with Similar and Dissimilar Material Electrode in Refinery

作　　者：雷月葆[1] 忻云彪 李培宁[1] 葛修鑫 张金权 

机构地区：[1]华东化工学院 [2]高桥石化公司炼油厂

出　　处：《压力容器》1992年第5期19-29,52,共12页Pressure Vessel Technology

摘　　要：Cr5Mo 工艺管线同质焊接接头(用珠光体同质焊条热507焊接)与异质焊接接头(用奥302奥氏体不锈钢焊条焊接)的性能比较表明,同质焊接接头有较好的综合性能。但是,焊后热处理温度对同质焊接接头的性能影响很大。如果焊后热处理温度低于750℃,则焊缝金属的冲击功值很低。本文建议,当焊后热处理温度不能保证时,宁可选用奥氏体异质接头。Comparing the properties of joint of Cr5Mo pipeline welded with similar pearlitic steel electrode to the joint welded with dissimilar austenite steel electrode,the results show that the former is bet- ter.However,its properties are sensitive to the tempering temperature,and the value of impact energy of weld metal is very low if the tempering temperature is lower than 750℃.It is suggest- ed that the austenite steel electrode should be selected preferably if tempering temperature can not be guaranteed.

关 键 词：同质接头 异质接头 焊后热处理 

分 类 号：TG457.5[金属学及工艺—焊接]