摘要
SA-213T23和SA-213T91小口径管端部在镦粗后进行局部正火加回火热处理,然后进行弯管,在弯管过程中极易出现断裂、弯头椭圆度超标、弯头内侧起皱等缺陷。本文着重对缺陷产生的原因加以分析,并确定合理的预防措施,以保证后续产品质量。
After upsetting,Tubes SA-213T23 and SA-213T91 shall be subjected to local normalization and tempering heat treatment, then bended. Defects such as fracture, exceeded standard of ovality of elbow and wrinkling inside elbow are easily taken place during bending. This thesis mainly analyzes the causes of defects and identifies proper preventive measures to guarantee product quality.
作者
刘建文
王静
Liu Jianwen;Wang Jing(Harbin Boiler Co.,Ltd.,Harbin 150046,China)
出处
《锅炉制造》
2019年第2期47-49,共3页
Boiler Manufacturing
关键词
管子
镦粗
热处理
弯管缺陷
Tube
upsetting
heat treatment
bend defects
