HIGH-DENSITY MOLDING DEVICE AND HIGH-DENSITY MOLDING METHOD FOR MIXED POWDER
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Apr 22, 2013
filing date -
Apr 23, 2012
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Abstract
A mixed powder placed in a container cavity is transferred to the cavity of a first die. A first pressure is applied to the mixed powder in the first die to form an intermediate green compact. The first die and the intermediate green compact are heated to heat the intermediate green compact to the melting point of a lubricant. The heated intermediate green compact is transferred to the cavity of a second die, and a second pressure is applied to the intermediate green compact to form a high-density final green compact.
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