孕育剂量对激冷球铁凸轮轴组织和性能的影响  

Influence of Inoculant Amount on Structure and Properties of Chilled Camshaft

作　　者：陈礼年[1] 蔡启舟[1] 魏伯康[1] 喻平[2] 夏建元[2] 

机构地区：[1]华中科技大学材料科学与工程学院,湖北武汉430074 [2]东风汽车公司铸造一厂

出　　处：《现代铸铁》2002年第3期32-34,共3页Modern Cast Iron

摘　　要：试验了孕育剂量对凸轮轴组织和性能的影响。在轴颈心部碳化物质量分数≤15%条件下,降低孕育剂量可有效减少激冷层的石墨数量,提高激冷层的硬度和激冷深度;同时,降低孕育剂量,可增加铁液的激冷敏感性,有利于凸轮轴的生产控制。The influence of inoculant addition amount on the structure and properties of camshaft was investigated.By keep ing the carbide content in the center area of the shaft less than15%,the re-duce of inoculant addition amount brought the results:the graphit e count in chilled layer could be effectively reduced,the hardness and the depth of chilled layer could be increased,and in addition,the chilling sensitivity of molten iron could be improved that would be beneficial to the production control of the camshaft.

关 键 词：孕育剂量 激冷球铁 凸轮轴 组织 性能 

分 类 号：TG255[金属学及工艺—铸造] TG143.5[一般工业技术—材料科学与工程]