浇注温度和浇注时间对升船机大尺寸轴承座铸件性能的影响  

Effects of Pouring Temperature and Time on Mechanical Properties of Large-Size Bearing Block for Ship Lift Machine

作　　者：王敏 WANG Min(Hua Dian Electric Power Research Institute,Hangzhou 310030,Zhejiang,China;Hangzhou Guodian Mechanical Design and Research Institute Co.,Ltd.,Hangzhou 310030,Zhejiang,China)

机构地区：[1]华电电力科学研究院有限公司 [2]杭州国电机械设计研究院有限公司

出　　处：《铸造》2019年第11期1281-1285,共5页Foundry

摘　　要：对升船机大尺寸ZG270-500铸钢轴承座的铸造参数,即浇注温度和浇注时间进行了优化。采用附铸的方式,先对不同的浇注温度下获得的铸件进行冲击性能和耐磨损性能检测,确定出最佳浇注温度,然后在最佳浇注温度下,采用不同浇注时间进行性能检测。结果表明,当浇注温度为1 550℃,浇注时间为80 s时,冲击吸收功最高为75 J,耐磨损性能最好。The optimum pouring temperature of large size ZG270-500 bearing seat steel castings for ship lift was determined based on the test results of impact and wear resistance of castings obtained at different pouring temperatures. Then the performance of castings produced at the optimum pouring temperature and different pouring times was tested. The results show that the impact absorbing power of castings reaches its maximum value 75 J, and the wear resistance is the best when the pouring temperature is 1 550 ℃ and the pouring time lasts 80 s.

关 键 词：铸造工艺 浇注温度 浇注时间 冲击吸收功 耐磨损性能 

分 类 号：TG24[金属学及工艺—铸造]