模铸系统结构对钢材探伤合格率的影响  

Effect of Gating System on Flaw Detection Qualification Rate of Steel by Ultrasonic Testing

作　　者：周伟基[1] 鹿海 薄永明 战东平[2] 张飞[2] 

机构地区：[1]抚顺特殊钢股份有限公司技术中心,辽宁抚顺113001 [2]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《铸造》2011年第11期1126-1129,共4页Foundry

摘　　要：研究了浇注系统结构对10-27t大钢锭成材后探伤合格率的影响。通过改进浇注系统结构，降低浇注过程中的夹渣几率，提高了钢材质量。改进后探伤不合格率由14．6％下降到2．5％，下降了83％。The paper studied the effect of gating system＇s structure on the qualification rate of the heavy ingots that weigh from 10 to 27 t by ultrasonic testing. The entrapped slag was decreased, and the steel quality was improved by improvement of the gating system. The reject ratio is reduced by 83% from 14.6% to 2,5%,

关 键 词：铸造 夹杂物 夹渣 探伤 合格率 

分 类 号：TG245[金属学及工艺—铸造]