液态模锻工艺对机械活塞低温性能的影响  

Influence of Liquid Die Forging Process on Low Temperature Performance of Mechanical Piston

作　　者：齐晓华[1] 魏冠义[1] 张勇[1] 

机构地区：[1]郑州铁路职业技术学院

出　　处：《热加工工艺》2018年第1期181-184,共4页Hot Working Technology

基　　金：2016年河南省科技厅科技公关项目(162102210379)

摘　　要：采用不同的压力和浇注温度进行了Al-12Si-1Cu-1Mg-0.5Ce新型铝合金机械活塞的液态模锻成形,并进行了试样的冲击性能和耐磨损性能的测试与分析。结果表明：随浇注温度从650℃提高至800℃、压力从10 MPa增加至50 MPa,活塞的冲击性能和耐磨损性能均先提高后下降。优化的浇注温度和压力分别为725℃、30 MPa。Liquid die forging forming of Al-12Si-1Cu-IMg-0.5Ce new type aluminum alloy mechanical pistons was carried out by using different pressures and pouring temperatures. And the impact property and wear resistance of the samples were tested and analyzed. The results show that with pouring temperature increasing from 650℃ to 800℃ or with pressure increasing from 10 MPa to 50 MPa, the impact property and wear resistance of the sample increase firstly and then decrease. The optimized pouring temperature and pressure are 725 ℃ and 30 MPa, respectively.

关 键 词：液态模锻工艺 机械活塞 冲击性能 耐磨损性能 

分 类 号：TG316[金属学及工艺—金属压力加工]