Method of preparing powders for hard materials from APT and soluble
cobalt salts
    2.
    发明授权
    Method of preparing powders for hard materials from APT and soluble cobalt salts 失效
    从APT和可溶性钴盐制备硬质材料粉末的方法

    公开(公告)号:US5658395A

    公开(公告)日:1997-08-19

    申请号:US464564

    申请日:1995-06-05

    CPC分类号: C22C1/045 B22F9/22

    摘要: According to the present invention there is now provided a method for preparing a powder containing W and Co and/or Ni characterized in reacting APT and a soluble salt of Co (Ni) in water at temperatures from room temperature to the boiling point of the solution keeping the solution pH at a constant level during the chemical reactions. The powder is filtered off, dried and reduced to a metallic powder which may be further carburized to form a powder containing WC and Co and/or Ni.

    摘要翻译: 根据本发明,现在提供一种制备含有W和Co和/或Ni的粉末的方法,其特征在于使APT和Co(Ni)在水中的可溶性盐在室温至溶液沸点的温度下反应 在化学反应期间将溶液的pH值保持在一定水平。 将粉末滤出,干燥并还原成可进一步渗碳以形成含有WC和Co和/或Ni的粉末的金属粉末。

    Method of preparing powders for hard materials
    3.
    发明授权
    Method of preparing powders for hard materials 失效
    制备硬质材料粉末的方法

    公开(公告)号:US5594929A

    公开(公告)日:1997-01-14

    申请号:US465356

    申请日:1995-06-05

    CPC分类号: C22C1/053 B22F9/22

    摘要: According to the invention there is now provided a simple method of preparing a powder containing WC and cobalt and/or nickel. APT-powder and a powder of a basic salt of cobalt and/or cobalt are mixed in water or in mixed solvents. The suspension is stirred to react at temperatures ranging from room temperature to the boiling point of the solution whereby a precipitate is formed, which precipitate is filtered off, dried and finally reduced to a metallic powder.

    摘要翻译: 根据本发明,现在提供了制备含有WC和钴和/或镍的粉末的简单方法。 APT粉末和钴和/或钴的碱性盐的粉末在水或混合溶剂中混合。 在室温至溶液沸点的温度范围内搅拌悬浮液进行反应,由此形成沉淀物,滤出沉淀物,干燥,最后还原成金属粉末。