Lost foam casting apparatus for reducing porosity and inclusions in metal castings
    1.
    发明授权
    Lost foam casting apparatus for reducing porosity and inclusions in metal castings 失效
    用于减少金属铸件中孔隙率和夹杂物的失水泡沫铸造设备

    公开(公告)号:US06619373B1

    公开(公告)日:2003-09-16

    申请号:US10132878

    申请日:2002-04-25

    IPC分类号: B22C908

    摘要: Apparatus for the gravity-cast, bottom-fill, “lost foam” casting of metal castings, including a fugitive, pyrolizable pattern (for forming a casting cavity), and a hollow sprue (for conducting melt to the casting cavity) embedded in a bed of loose sand. The sprue is free from pyrolyzable foam and conducts melt from above the pattern to a gating system supplying melt to the pattern. The sprue is constructed so as to cause the melt to approach the gating system from beneath and keep any pyrolysis products from entering the sprue.

    摘要翻译: 用于重力铸造,底部填充的“失去泡沫”铸造金属铸件的装置,包括一个易燃的可热化图案(用于形成铸造腔体)和一个嵌入在一个铸造腔中的中空浇道(用于将熔体导入铸造腔) 松沙床。 浇口不含可热解的泡沫,并且从图案上方引导熔体到向熔体提供图案的浇注系统。 浇口被构造成使得熔体从下方接近浇注系统,并保持任何热解产物不会进入浇口。