铸造工艺对电梯曳引机用锌合金蜗轮组织与性能的影响  

Effect of Casting Technique on Microstructure and Properties of Zinc Alloy Worm Gear in Elevator Traction Machine

作　　者：朱权利[1] 夏勇[1] 陈家坚 吴资湧[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640 [2]广东华金合金材料实业有限公司,广东广州511356

出　　处：《铸造技术》2016年第3期517-520,共4页Foundry Technology

摘　　要：研究了金属型重力铸造和挤压铸造这两种工艺制备的锌合金蜗轮的显微组织、力学性能、针孔度及耐点蚀性能。结果表明:相对于金属型重力铸造,挤压铸造工艺显著细化了锌合金组织,提高了锌合金组织的致密性,其制备的蜗轮,力学性能良好,针孔度和耐点蚀性能优异。The zinc alloy worm gears were prepared by permanent mold casting and squeezing casting, respectively. The microstructure, mechanical properties, pinhole and corrosion resistance of the two kind of zinc alloy worm gears were studied. The results show that the microstructure of the zinc alloy worm gear is refined, and the mechanical properties and corrosion resistance are improved greatly by squeezing casting.

关 键 词：铸造工艺 锌合金蜗轮 挤压铸造 针孔度 耐点蚀性能 

分 类 号：TG291[金属学及工艺—铸造] TG146.13[一般工业技术—材料科学与工程]