用高铝锌基合金（ZA27—2）制造电梯曳引机蜗轮探析  

作　　者：曾梓峰 

机构地区：[1]深圳市特种设备安全检验研究院,广东深圳518013

出　　处：《中国电子商务》2013年第14期104-105,共2页E-commerce in China

摘　　要：用高铝锌基合金（ZA27-2）制造的电梯曳引机蜗轮常发生点蚀、断齿以及整体失效等现象。通过科学调研与抽样检测，发现ZA27—2合金力学性能、耐蚀性能优于锡青铜，断后延伸率与锡青铜相当，ZA27-2合金在正常使用中可以替代锡青铜用于制造电梯曳引机蜗轮。同时，针对ZA27—2合金的高温敏感性以及不同铸造工艺形成ZA27—2合金蜗轮耐冲击性能差别较大等情况，笔者提出了一些合理的建议。The worm wheels of elevator traction machines which are produced by the high aluminum zinc base alloy （ZA27-2） are often pitted or broken. Though scientific researching, sampling and detecting, the researcher found that the mechanical property and the corrosion resisting property of ZA27-2 are better than that of the tin bronze. The elongation of ZA27-2 is equal with the tin bronze. So the alloy of ZA27-2 can replace the tin bronze to produce the worm wheels in normal use. Also the researcher put forward some reasonable suggestions to deal with the high temperature sensitivity and poor impact resistance performance caused by different casting process of ZA27-2.

关 键 词：蜗轮 高铝锌基合金 抗拉强度 高温敏感性 铸造工艺 

分 类 号：TG316[金属学及工艺—金属压力加工]