4Cr5MoSiV钢挤压铸造锻模件质量的研究  

Study on the Quality of 4Cr5MoSiV Steel Forging Die Made by Squeeze Casting

作　　者：叶四友[1] 周述积[1] 何汉军[1] 

机构地区：[1]湖北汽车工业学院,湖北十堰442002

出　　处：《铸造设备研究》2002年第2期7-11,共5页Research Studies On Foundry Equipment

摘　　要：采用挤压铸造的方法成形 4Cr5MoSiV钢锻模 ,研究了挤铸锻模产品在成分、性能、锻模型槽尺寸精度和缺陷几个方面的情况。结果表明 ,熔炼时 ,每种合金按如下烧损量添加 :Si -Fe10 %,Mn -Fe2 0 %,Cr-Fe15 %,Mo -Fe 2 0 %- 30 %;挤铸锻模抗拉性能能满足锻模要求 ,但冲击值较低 ;型槽部分的尺寸只考虑钢水的收缩率 ,而不用留加工余量 ;最后分析了缺陷的成因 ,提出了减少缺陷的途径。Cr5MoSiV steel forging die was made by as follows squeeze casting, its composite?properties?precision and defects and so on.were investigated. The results show that the loss of alloy are :Si-Fe 10%,Mn -Fe 20%,Cr-Fe 15%,Mo-Fe 20%～30%;Its mechanical properties is good,but impact proerties is low;The quality of the squeeze casting mold is analyzed,the tensile strength is enough,while the compact strength is low. The notch dimension is determined only by the shrinkage rate of the steel liquid, no machining provision reserved.The reeson for defects are analyzed and approach for decreasing defect is offered.

关 键 词：4Cr5MoSiV 挤压铸造 锻模 质量 

分 类 号：TG269[金属学及工艺—铸造]