ZL208铝合金端盖熔模铸造工艺设计  

Investment Casting Process of ZL208 Alloy End Caps

作　　者：陈复生 CHEN Fu-sheng(Xinxiang Aviation Forging and Casting Co.,Ltd.,Xinxiang 453049,Henan,China)

机构地区：[1]新乡市航空锻铸有限公司,河南新乡453049

出　　处：《铸造》2020年第3期297-300,共4页Foundry

摘　　要：某航空气压调节器端盖采用ZL208铝合金,经熔模铸造硅溶胶制壳工艺生产而成。通过设计合理的浇注系统、硅溶胶制壳工艺,并采用蒸汽脱蜡及合适的焙烧工艺、熔炼浇注工艺、热处理工艺,获得了尺寸精度高、内部质量好的铸件,产品合格率达到85%以上。该工艺方法不仅操作简单,且制壳时对环境无污染,应用较为广泛。The end cap of a certain aeronautical air pressure adjuster,made of ZL208 aluminium alloy,is produced by silica sol investment casting process.Through adopting reasonable pouring system,silica sol shell-making process,steam dew-axing,and suitable roasting process,melting pouring process and heat treatment process,the castings with high dimensional accuracy and good internal quality are obtained.And the qualified rate of products is over 85%.The process is widely used because of simple operation and environmentally friendly and no pollution to the environment during making shells.

关 键 词：ZL208合金 浇注系统 硅溶胶制壳 熔炼浇注工艺 热处理工艺 

分 类 号：TG249.5[机械工程—精密仪器及机械]