碳当量对热模法大口径球铁管内壁翘皮的影响  

EFFECT OF CARBON EQUIVALENT ON BUCKLING SURFACE ON THE INTERNAL WALL OF LARGE-DIAMETER PIPE OF NODULAR CAST IRON PRODUCED WITH HOT-DIE METHOD

作　　者：闫玉凤[1] 闫国栋 宋斌 贾清波 谷艳梅 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]新兴铸管公司技术中心,河北邢台056300

出　　处：《河北冶金》2007年第2期50-52,共3页Hebei Metallurgy

摘　　要：介绍了球铁铸管内壁龟纹、翘皮缺陷及其产生的影响因素、解决的方法。分析了碳当量对龟纹翘皮的影响。The defect of turtle veins on the internal wall of nodular casting iron pipe is introduced as well as its cause reason and resolving method, the effect of carbon equivalent on it analyzed.

关 键 词：碳当量 球铁管 内壁 翘皮 

分 类 号：TG255[金属学及工艺—铸造]