不同球化孕育处理方式对硅钼球铁力学性能的影响  

Effect of Real Earth Nodulizer on Property of Heat-Resistant Nodular Iron Exhaust Manifold

作　　者：朱铭 徐锦锋[2] 王殿选 朱爱军 董道明 

机构地区：[1]江苏多为泵业有限公司,江苏盐城224115 [2]西安理工大学材料科学与工程学院,陕西西安710048 [3]无锡永新特种金属有限公司,江苏无锡214072

出　　处：《铸造技术》2016年第11期2412-2413,2417,共3页Foundry Technology

摘　　要：分别采用稀土球化剂Fe Si Mg7RE1和Fe Si Mg8RE5进行球化处理,硅钡孕育剂进行孕育处理,分析孕育剂加入量对耐热球铁性能的影响。结果表明,合金硬度随着孕育剂量的增加先升高尔后下降。用Fe Si Mg8RE5球化剂处理的合金抗拉强度明显高于Fe Si Mg7RE1。当孕育剂加入量为1.0%时,合金的伸长率达到最大值。Nodular cast iron was nodulizered with rare earth nodulizer FeSiMg7RE1 and FeSiMg8RE5 and inoculated with silicon barium inoculant, the effect of the inoculant on the property of heat-resistant nodular iron exhaust manifold was studied. The test results show that the hardness increases first then decreases with the inoculant addition increasing. The elevated tensile strength of nodular cast iron nodulizered with FeSiMg8RE5 is better than that with FeSiMg7RE1. When the inoculant addition is 1.0 %, the maximum elongation can be obtained.

关 键 词：稀土镁球化剂 硅钡孕育剂 耐热球铁 排气歧管 

分 类 号：TG255[金属学及工艺—铸造]