SWRCH22A冷镦钢线材拉拔断裂分析  

Analysis of Drawing Break of SWRCH22A Cold Heading Steel Wire Rod

作　　者：张春燕[1] 陈嘉华[1] 吉学军[1] 

机构地区：[1]唐山钢铁股份有限公司,063016

出　　处：《金属制品》2004年第1期35-36,共2页Metal Products

摘　　要：对唐钢首次试产冷镦钢SWRCH2 2A , 6 .5mm线材使用中出现的拉拔断裂原因进行了分析 ,认为线材屈服强度高、组织不均、内部铁素体晶粒细小、边部出现魏氏组织铁素体是冷镦钢线材拉丝断裂的主要原因 ,提出了相应的解决措施 。To analyze the drawing break cause of SWRCH22A cold heading steel with 6.5 mm trial wire rod made in Tangshan Iron & Steel Co.,Ltd.at first time. The result shows that the drawing break is mainly due to high yield strength of the wire rod,uneven microstructure,fine ferrite grains internally,appearing widmanstattenpattern ferrite at margin. Relevant solving measures are put forward and the wire drawing break is resolved.

关 键 词：冷镦钢 线材 拉拔 断裂 SWRCH22A 

分 类 号：TG356.4[金属学及工艺—金属压力加工]