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    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

    申请人： Sverker Wahlberg ,  Mamoun Muhammed ,  Ingmar Grenthe

    发明人： Sverker Wahlberg ,  Mamoun Muhammed ,  Ingmar Grenthe

    IPC分类号： C01B32/949 ,  B22F9/22 ,  B22F9/24 ,  C22C1/04

    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

    申请人： Mamoun Muhammed ,  Sverker Wahlberg ,  Ingmar Grenthe

    发明人： Mamoun Muhammed ,  Sverker Wahlberg ,  Ingmar Grenthe

    IPC分类号： B22F9/20 ,  B22F1/00 ,  B22F9/22 ,  C22C1/05

    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。

    Method of preparing multicarbide powders for hard materials
    4.
    发明授权
    Method of preparing multicarbide powders for hard materials 失效
    制备硬质合金碳化硅粉末的方法

    公开(公告)号：US5584907A

    公开(公告)日：1996-12-17

    申请号：US464965

    申请日：1995-06-05

    申请人： Mamoun Muhammed ,  Inger Grenthe ,  Sverker Wahlberg

    发明人： Mamoun Muhammed ,  Inger Grenthe ,  Sverker Wahlberg

    IPC分类号： C01B32/949 ,  B22F1/00 ,  B22F9/22 ,  B22F9/24 ,  C22C1/04

    CPC分类号： C22C1/045 ,  B22F9/22

    摘要： There is now provided a method for preparing a powder containing W and Co and/or Ni from APT and a soluble salt of Co(Ni) by a chemical reaction in a water suspension at temperatures from room temperature to the boiling point of the solution whereafter the formed powder is filtered off, dried and reduced to a metallic powder. Additional metals from groups IVa, Va or VIa of the periodic table of the elements are added to the suspension as compounds like oxides, hydroxides, soluble or insoluble salts.

    摘要翻译： 现在提供了一种通过化学反应在水悬浮液中从室温至溶液沸点的温度从APT制备含有W和Co和/或Ni的粉末和Co（Ni）的可溶性盐的方法， 将形成的粉末滤出，干燥并还原成金属粉末。 元素周期表第Ⅳa，Ⅴa或Ⅵa族的额外金属作为化合物如氧化物，氢氧化物，可溶性或不溶性盐加入到悬浮液中。

    Method of making metal composite powders
    7.
    发明授权
    Method of making metal composite powders 失效
    制备金属复合粉末的方法

    公开(公告)号：US5529804A

    公开(公告)日：1996-06-25

    申请号：US412930

    申请日：1995-03-29

    申请人： Maxime Bonneau ,  Nicolas Chardon ,  Sara Andersson ,  Mamoun Muhammed

    发明人： Maxime Bonneau ,  Nicolas Chardon ,  Sara Andersson ,  Mamoun Muhammed

    IPC分类号： B22F1/02 ,  B22F9/24 ,  C22C29/00 ,  B05D7/00

    CPC分类号： B22F1/025 ,  B22F9/24

    摘要： A process for the production of hard materials wherein hard constituent powders are coated with cobalt and/or nickel metal in solution by reducing the metals from a suitable compound such as an oxide, hydroxide or salt with a polyol while keeping the powder in suspension. The polyol functions both as a solvent and a reducing agent at the same time and is present in an amount of at least 5 times more moles polyol than moles metal. There is obtained an even distribution of the cobalt and/or nickel over the surface of the hard constituent powder without the formation of islands of pure metal.

    摘要翻译： 一种制备硬质材料的方法，其中硬质组分粉末在溶液中用钴和/或镍金属涂覆，通过在保持粉末悬浮液的同时将多种金属从合适的化合物如氧化物，氢氧化物或盐与多元醇一起还原。 多元醇同时作为溶剂和还原剂起作用，并且以多于金属摩尔量的多元醇的摩尔量的至少5倍的量存在。 在硬质成分粉末的表面上均匀分布了钴和/或镍，而不形成纯金属岛。