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    Method of preparing a durable air-permeable mold
    1.
    发明授权
    Method of preparing a durable air-permeable mold 失效
    制备耐久性透气模具的方法

    公开(公告)号：US5405570A

    公开(公告)日：1995-04-11

    申请号：US213715

    申请日：1994-03-16

    申请人： Toyoji Fuma ,  Kazuyuki Nishikawa ,  Yojiro Hayashi ,  Naoshi Makiguchi ,  Takehiro Inagaki ,  Koji Nishioka ,  Mituo Kawaguchi

    发明人： Toyoji Fuma ,  Kazuyuki Nishikawa ,  Yojiro Hayashi ,  Naoshi Makiguchi ,  Takehiro Inagaki ,  Koji Nishioka ,  Mituo Kawaguchi

    IPC分类号： B22C9/02 ,  B22C9/06 ,  B22F3/22 ,  B22F5/00 ,  B28B1/26 ,  B29C33/38 ,  B22F3/10

    CPC分类号： B22F5/007 ,  B22C9/061 ,  B22F3/22 ,  B29C33/3814 ,  B22F2998/00

    摘要： A method of preparing a durable air-permeable mold having dimensional accuracy and without cracks clue to the segregation of the ingredients of the aggregate and without a surface irregularity, which comprises compounding 100 parts by weight of an aggregate obtained by compounding metal powders with metal oxide powders in a weight ratio of 5:95 to 30:70, the metal of said metal oxide powders being the same as that of the metal powders, 80% or more of said metal powders and said metal oxide powders having grain sizes of 300 .mu.m or less, with 10 to 35 by weight of an auxiliary hardening material that is softened and melted during the sintering process, and 10 to 25 by weight of a binder that contains an evaporable component, mixing them to form a slurry mixture, pouring it in a pattern mold to obtain a mold, drying the thus-obtained mold, and sintering the dried mold in an oxidative atmosphere at a temperature of 600.degree. to 1200.degree. C.

    摘要翻译： 一种制备耐久性透气性模具的方法，其具有尺寸精度并且由于骨料的成分偏析而没有表面不规则性而没有裂纹，其包括将100重量份的通过将金属粉末与金属氧化物复合而获得的骨料 重量比为5:95〜30:70的粉末，所述金属氧化物粉末的金属与金属粉末的金属相同，所述金属粉末的80％以上，所述金属氧化物粉末的粒径为300μm m以下，10〜35重量份的辅助硬化材料在烧结过程中软化和熔融，10〜25重量份含有蒸发成分的粘合剂，混合形成浆料混合物，倒入 在图案模具中获得模具，干燥由此获得的模具，并在600℃至1200℃的温度的氧化气氛中烧结干燥的模具。