硼微合金化热轧卷板A36边部重皮缺陷成因分析  

CAUSE ANALYSIS OF EDGE SURFACE PEELING DEFECT FOR BORON MICRO-ALLOYED HOT-ROLLED COIL A36

作　　者：王健 房锦超 

机构地区：[1]河北钢铁集团唐钢技术中心,河北唐山063009

出　　处：《冶金丛刊》2013年第5期4-6,23,共4页Metallurgical Collections

摘　　要：针对唐钢某热轧生产线生产的含硼钢A36出现了边部重皮缺陷(部分较严重的存在裂纹)问题,系统地分析了缺陷产生的原因。指出通过采取控制钢中[N]、[B]、[Al]的含量,适当添加[Ti],减少板坯连铸二冷水量及优化热轧工艺等措施,可显著地减少边部重皮缺陷的发生。Aiming at the edge surface peeling defect （serious existence crack defect） that occurred in boron steel A36 produced by a hot rolling production line in Tangshan Steel, this paper systematically analyzed its causes, and pointed out that by controlling the content of [ N ] in steel, [ B ], [ A1 ], adding [ Ti], reducing the second cooling water volume of slab casting and optimizing hot-rolling process, the occurrence of edge surface peeling defect can be greatly reduced.

关 键 词：硼微合金化 重皮缺陷 立辊负荷 晶间断裂 

分 类 号：TG335.55[金属学及工艺—金属压力加工] TG115.21