Ball milling process for preparing hard alloy mixture
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United States of America Patent
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Nov 19, 2013
Grant Date -
Jan 26, 2012
app pub date -
Dec 30, 2009
filing date -
Jan 16, 2009
priority date (Note) -
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Abstract
A ball milling process for preparing hard alloy mixture, characterized by utilizing a process of stirring ball milling, in which balls of hard alloy with diameters of 4 to 6 mm are used, the positive and negative deviation of the diameters of the alloy balls is less than or equal to 0.1 mm; tungsten carbide powders with particle sizes of 0.3 to 0.8 μm and cobalt powders are used; ethyl alcohol is used as a grinding medium, while paraffin wax is used as a forming agent. This process of ball milling has advantages of high efficiency, low energy consumption, ease of mass production, etc. and can be widely used in the preparation of hard alloy mixture.
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