Cu-Cr合金化灰铸铁和含氮灰铸铁的对比分析  

Contrast And Analyze Of Cu-Cr Alloying Gray Iron And Nitrogen-Containing Gray Iron

作　　者：李国钧[1] 

机构地区：[1]昆明云内动力股份有限公司,云南昆明650217

出　　处：《铸造技术》2015年第11期2626-2628,共3页Foundry Technology

摘　　要：通过大量的生产实际数据对比了Cu-Cr合金化灰铸铁和含氮灰铸铁各自的优缺点,认为在机体、缸盖等柴油机灰铸铁件中,牌号在HT250到HT300之间的Cu-Cr合金化灰铸铁可以用含氮灰铸铁进行替代,可以改善铸造工艺条件,改善铸铁性能和加工性能,降低综合废品率,降低铸件生产成本。After analyzing the advantages and disadawantages of Cu-Cr alloying gray cast iron and nitrogen-containing gray iron basing on numerous practical data from production, the author thinks that the Cu-Cr alloying gray cast iron （the brand from HT250 to HT300） can be replaced by nitrogen-containing gray iron when making diesel （the engine, cylinder head ,etc）. The nitrogen-containing gray iron can improve the technological process of casting ,the performance and the polish of iron casting, as well as reducing waste and cost in casting.

关 键 词：Cu-Cr合金化灰铸铁 含氮灰铸铁 成熟度RG 相对硬度RH 

分 类 号：TG143.2[一般工业技术—材料科学与工程]