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1铝缸盖铸造工艺分析在铝合金发动机缸盖的重力铸造工艺开发过程中,通常选择底注或顶注浇注方式,但有些铝缸盖由于受结构限制,不便于采用这两种浇注方式,见图1。图1缸盖照片由于铝缸盖进排气侧油池壁均向内收,且有凸凹结构,若采用顶注,则铝液进入型腔后会顺着油池壁的形
1 Aluminum cylinder head casting process analysis In the development of gravity casting process of aluminum alloy cylinder head, usually choose the bottom injection or top injection method, but some aluminum cylinder head due to structural constraints, inconvenience to use these two kinds of casting methods, see picture 1. Figure 1 cylinder head photo As the cylinder head into the exhaust side of the oil pool are received inward, and there are convex and concave structure, if the top note, the liquid aluminum into the cavity will follow the shape of the tank wall