基于不均匀散热的薄壁金属O形密封环电阻对焊工艺  

Resistance butt welding of thin-wall metallic O-ring based on non-uniform heat dissipation

作　　者：陈树君[1] 张鹏[1] 于洋[1] 涂志伟[1] 李延民[2] 

机构地区：[1]北京工业大学机电学院,100124 [2]首都航天机械有限公司,北京市100036

出　　处：《焊接》2009年第8期6-10,共5页Welding & Joining

摘　　要：根据无缝薄壁不锈钢管首尾连接形成O形密封环的特殊要求,开发了直流电阻对焊设备。该设备采用可编程加热电源、异形铜电极夹钳、恒定的焊接顶锻压力结构,通过断续加热、持续不均匀散热的方式,获得合适的焊接温度场,形成O形密封环的对接接头,成功地实现了薄壁不锈钢O形密封环的电阻对焊。According to the special requirements of the O-Ring for the non-gap stainless steel pipe,the direct current resistance butt welding machine was developed.This machine used the programmable heat reservoir,isomerism Cu electric pole,persistent and constant welding upsetting pressure structure.The suitable welding temperature field was obtained by the methods of making and breaking heating and non-uniform heat dissipation.The joint of O-ring was obtained.The resistance butt welding of thin wall stainless steel airtight coating O-ring was implemented successfully.

关 键 词：电阻对焊 不均匀散热 O形密封环 

分 类 号：TG453.9[金属学及工艺—焊接]