板坯角横裂纹在轧后钢板边部的延展行为  

Experimental Study on Marginal Extension of Slab Corner Transverse Crack after Rolling

作　　者：刘洋[1] 顾林豪[1] 李战军[1] 王文军[1] 吕延春[1] 王海宝[1] 姜中行[1] 

机构地区：[1]首钢技术研究院,北京100043

出　　处：《钢铁钒钛》2010年第3期68-74,共7页Iron Steel Vanadium Titanium

摘　　要：对板坯角横裂纹在轧后钢板边部的延展行为进行了实验室和工业试验研究。得出:随着钢板轧制厚度的增加,铸坯角部横裂纹沿宽度方向延展有加重的趋势;轧制规格相对较薄的钢板的裂纹极微小,有被"撵平"的趋势;毛边钢板的安全切边量为35 mm。Both laboratory and industrial experiments are carried out to test the marginal extension of slab corner transverse crack after rolling.It is found that with the increase of slab rolling thickness,the extension of corner crack along width direction of cast slab will develop.Comparatively the corner transverse crack of thin rolling slab is less and can be driven out.Safe edge trimming width of slab with rough edge is 35 mm.

关 键 词：板坯 角横裂纹 切边量 钢板边裂 

分 类 号：TG335.5[金属学及工艺—金属压力加工]