发明名称 |
Sätt att framställa belagt hårdämnespulver |
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. |
申请公布号 |
SE502754(C2) |
申请公布日期 |
1995.12.18 |
申请号 |
SE19940001150 |
申请日期 |
1994.03.31 |
申请人 |
SANDVIK AB;EUROTUNGSTENE POUDRES SA |
发明人 |
MAXIME *BONNEAU;NICOLAS *CHARDON;MAMOUN *MUHAMMED;SARA *ANDERSSON |
分类号 |
B22F1/02;B22F9/24;C22C29/00;(IPC1-7):B22F1/02 |
主分类号 |
B22F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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