紫铜垫板对氩弧焊接双面成形的影响  

Effect of red copper plate to argon arc welding double-sided molding

作　　者：葛志友 皋锦春 侯丽荣 贾二雷 皋古胜 付俊 何珊珊[2] 

机构地区：[1]北京市宇航兴达机械制造有限公司,北京100076 [2]哈尔滨焊接技术培训中心,黑龙江哈尔滨150046

出　　处：《电焊机》2013年第1期67-68,共2页Electric Welding Machine

摘　　要：在壁厚3～5 mm的不锈钢管道环缝焊接中,由于管道内部空间狭小,焊缝反面清根较为困难,一般都采用氩弧焊接,以达到双面成形的目的。按照以往的经验通常要在管道内充氩气保护,防止外来空气进入管道内部,影响反面焊缝成形。焊接完工以后,管道内部气体无法回收,增加了制造成本。现在采用紫铜作为垫板,缩小反面保护空间,减少反面保护气体的体积,在保证焊缝内部质量的同时,大幅度降低制造成本。As it is hard to do weld root cleaning,the circular seam welding of thickness 3-5 mm stainless steel pipe usually adopts argon arc welding to achieve the purpose of double-sided molding,according to the past experience usually fill pipe with argon for protection ,in order to prevent the outside air into the pipe inside and effect the molding of back seam welding.After welding finished, the pipe internal gas can＇t be recycled.And it will increase the production cost.If take copper as plate will reduce the back protection space and also the volume of protection gas.h not only can ensure internal seam welding quality but also can reduce manufacturing cost substantially.

关 键 词：氩弧焊双面成形 紫铜垫板 制造成本 

分 类 号：TG444.74[金属学及工艺—焊接]