硅碳比对灰铸铁收缩倾向的影响  

The Effect of Si:C Ratio on the Shrinkage Tendency of Grey Cast Iron

作　　者：丛家瑞[1] 于秀嫒 高允峰 刘宏建 刘兵 

机构地区：[1]大连理工大学 [2]大连起重机器厂

出　　处：《铸造》1992年第4期7-11,共5页Foundry

摘　　要：对不同碳当量和硅碳比灰铸铁的体收缩和线收缩值进行了测定;通过热分析曲线和金相组织的分析,研究了硅碳比对灰铸铁收缩倾向的影响。结果表明,随硅碳比的增加,体收缩增大,线收缩变化不大。Abstract The volume and linear shrinkage value of grey cast iron with different CE and Si:C ratio were determined. On the basis of observing the thermal analysis curves and metallographic structures, the influence of Si:C ratio on shrinkage tendency was investigated. The Experimental results showed that the volume shrinkage value raised with increasing Si:C ratio, but the change of linear shrinkage value was less marked.

关 键 词：灰铸铁 硅碳比 体收缩 线收缩 

分 类 号：TG143.2[一般工业技术—材料科学与工程]