Nanometer/ultrafine WC-Co composite powder and preparation method thereof
The invention discloses a nanometer/ultrafine WC-Co composite powder and a preparation method thereof. The preparation method comprises the following steps that 1, a tungstate solution and a tungstenprecipitant solution are mixed and react so as to obtain tungsten precipitates; 2, a cobalt salt solu...
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| creator | HUANG ZEHUI LAI XINGREN LI QING DENG DENGFEI YANG QIUMIN |
| description | The invention discloses a nanometer/ultrafine WC-Co composite powder and a preparation method thereof. The preparation method comprises the following steps that 1, a tungstate solution and a tungstenprecipitant solution are mixed and react so as to obtain tungsten precipitates; 2, a cobalt salt solution is mixed with a cobalt precipitant solution to react so as to obtain cobalt precipitates; 3, the tungsten precipitates and the cobalt precipitates are mixed with carbon black to perform ball milling and compaction so as to obtain composite powder; and 4, the composite powder is conveyed to a vacuum furnace to perform in-situ one-step reduction carbonization reaction so as to obtain the nanometer/superfine WC-Co composite powder. According to the preparation method, the characteristic of elements distributed in atoms or molecules in a solution method is fully utilized, the characteristic that distribution of all the components in the ball milling mixing process is uniform and can promote reactions is also fully |
| format | Patent |
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The preparation method comprises the following steps that 1, a tungstate solution and a tungstenprecipitant solution are mixed and react so as to obtain tungsten precipitates; 2, a cobalt salt solution is mixed with a cobalt precipitant solution to react so as to obtain cobalt precipitates; 3, the tungsten precipitates and the cobalt precipitates are mixed with carbon black to perform ball milling and compaction so as to obtain composite powder; and 4, the composite powder is conveyed to a vacuum furnace to perform in-situ one-step reduction carbonization reaction so as to obtain the nanometer/superfine WC-Co composite powder. 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| subjects | ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY PERFORMING OPERATIONS POWDER METALLURGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER |
| title | Nanometer/ultrafine WC-Co composite powder and preparation method thereof |
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