20#热轧管坯用钢裂纹成因分析及改进措施  

CAUSE ANALYSIS FOR CRACKS IN 20# HOT ROLLED PIPE BILLET STEEL AND IMPROVING MEASURES

作　　者：王勇[1] 

机构地区：[1]河北钢铁集团宣化钢铁集团有限责任公司技术中心,河北宣化075100

出　　处：《河北冶金》2009年第1期42-44,共3页Hebei Metallurgy

摘　　要：针对20#热轧管坯用钢出现的中间裂纹和表面裂纹,深入分析了裂纹的成因,制定了有针对性的改进措施,满足了该钢生产无缝管的各项质量要求。The cause for inner and surface cracks in 20# hot -rolled pipe billet steel is analyzed, some improving measures worked out, and consequently its quality can meet demands for producing seamless tube.

关 键 词：热轧管坯用钢 裂纹 分析 改进 措施 

分 类 号：TG335.71[金属学及工艺—金属压力加工] O346.1[理学—固体力学]