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 -
Mar 5, 2015
app pub date -
Apr 11, 2013
filing date -
Apr 12, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
A first die is filled with a mixed powder that is a mixture of a basic metal powder and a low-melting-point lubricant powder, the internal dimension of the first die being smaller than the internal dimension (=100%) of a second die by 1 to 5%. A first pressure is applied to the mixed powder in the first die to form a mixed powder intermediate compressed body. The mixed powder intermediate compressed body is heated to the melting point of the lubricant powder. A second pressure is applied to the heated mixed powder intermediate compressed body in the second die that has been pre-heated to the melting point of the lubricant powder to form a high-density mixed powder final compressed body.
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- 4 Citation Count
- B29C Class
- 21.83 % this patent is cited more than
- 10 Age