Process for preparing WC cemented carbide
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United States of America Patent
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May 24, 2005
Grant Date -
Dec 4, 2003
app pub date -
Mar 12, 2003
filing date -
Mar 13, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
W powders and C powders are mixed at a ratio of 1:1, the raw material mixed powder is compacted to prepare a formed body, the formed body is embedded into a powder mixture capable of performing combustion synthesis, a part of the powder mixture is powerfully heated to ignite the part and perform combustion synthesis, and according to heat of formation released, a reaction represented by W+C→WC is induced and the reaction is subjected to combustion synthesis to convert a whole of the formed body into sintered WC.
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