风电法兰用Q345E连铸坯镦裂原因分析  

Reason Analysis for Upsetting Cracking of Q345E Continuous Casting Billet for Wind Power Flange

作　　者：完颜卫国[1] 李新[1] 李小虎[1] 汪国才[1] Wanyan Weiguo;Li Xin;Li Xiaohu;Wang Guocai(Maanshan Iron and Steel Co. , Ltd)

机构地区：[1]马鞍山钢铁股份有限公司

出　　处：《安徽冶金》2017年第4期51-53,共3页Anhui Metallurgy

摘　　要：对风电法兰用Q345E连铸坯镦裂的坯料,进行了取样检验分析。结果表明:Q345E连铸坯镦裂原因是连铸坯原料上压痕面两侧有表面裂纹,综合采取钢中加入0.01%~0.015%的Ti、拉矫温度提高至900℃以上和降低矫直压力10%~15%的措施可有效地避免连铸坯镦裂。Q345 E slab billet samples of the wind power flange were tested and analyzed.The results show that the reason of the upsetting of Q345 E continuous casting slab is that the surface cracks exist on both sides of the indentation surface of the continuous casting slab.When 0.01%~0.015% Ti is added into the steel,the straightening temperature is increased to over 900℃ and the straightening pressure is reduced by 10%~15%,those measures can effectively prevent the billet upsetting.

关 键 词：Q345E 连铸坯 风电法兰 镦裂 锻造裂纹 

分 类 号：TF777[冶金工程—钢铁冶金]