Method for hot pressing irregularly shaped refractory articles
The present invention is directed to a method for hot pressing irregularly shaped refractory articles with these articles of varying thickness being provided with high uniform density and dimensional accuracy. Two partially pressed compacts of the refractory material are placed in a die cavity between displaceable die punches having compact-contacting surfaces of the desired article configuration. A floating, rotatable block is disposed between the compacts. The displacement of the die punches towards one another causes the block to rotate about an axis normal to the direction of movement of the die punches to uniformly distribute the pressure loading upon the compacts for maintaining substantially equal volume displacement of the powder material during the hot pressing operation.
- Assignee:
- Dept. Of Energy
- Patent Number(s):
- US 4314961
- OSTI ID:
- 5386018
- Resource Relation:
- Patent File Date: Filed date 14 Jun 1979; Other Information: PAT-APPL-048331
- Country of Publication:
- United States
- Language:
- English
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