A New Method of Making a Cemented Carbide or Cermet Body
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United States of America Patent
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Issued Date -
Mar 9, 2017
app pub date -
Jun 9, 2015
filing date -
Jun 12, 2014
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Abstract
A method of manufacturing a cemented carbide and/or cermet comprising the steps of: a) providing a powder comprising metal carbide and binder metal and optionally metal nitride(s); b) mixing the powder composition under vacuum; c) adding at least one organic binder to the powder composition; d) mixing the at least one organic binder with the powder composition under vacuum and raising the temperature to a predetermined temperature and keeping the temperature for a predetermined time until the organic binder has melted; e) subjecting the obtained mixture of step d) to forming and sintering processes; wherein one or more dispersing agents is added to the powder composition in step a).
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