中厚板表面裂纹的金相分析  

METALLOGRAPHIC ANALYSIS OF SURFACE CRACK ON MEDIUM AND HEAVY PLATE

作　　者：孙胜英[1] 袁玉鲁[1] 侯钢铁[1] 贾丽君[1] 

机构地区：[1]河北钢铁集团邯郸钢铁公司技术中心,河北邯郸056015

出　　处：《河北冶金》2010年第2期48-50,40,共4页Hebei Metallurgy

摘　　要：裂纹是中厚板废品和不良品的主要构成部分,用微观检验方法分析了Q345B中厚板表面裂纹的形态、分布、裂纹附近的夹杂物、金相组织,认为通过调节化学成分、对连铸结晶器和二冷配水进行优化等措施,可以减少中厚板表面裂纹的发生。With micro -test method it is analyzed the crack on surface of Q345B plate with its pattern, distribution, inclusion around it and metallographic structure. It is considered that the cracks can be reduced by adjusting chemical component, optimizing continuous casting mold and second cooling water.

关 键 词：中厚板 表面裂纹 金相分析 

分 类 号：TG335.5[金属学及工艺—金属压力加工]