skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method for hot pressing irregularly shaped refractory articles

Abstract

The present invention is directed to a method for hot pressing irregularly haped 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.

Inventors:
 [1];  [2]
  1. (Clinton, TN)
  2. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
864129
Patent Number(s):
4314961
Assignee:
United States of America as represented by Department of Energy (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; hot; pressing; irregularly; shaped; refractory; articles; directed; haped; varying; thickness; provided; uniform; density; dimensional; accuracy; partially; pressed; compacts; material; placed; die; cavity; displaceable; punches; compact-contacting; surfaces; desired; article; configuration; floating; rotatable; block; disposed; displacement; towards; causes; rotate; axis; normal; direction; movement; uniformly; distribute; pressure; loading; maintaining; substantially; equal; volume; powder; operation; uniformly distribute; irregularly shaped; uniform density; refractory material; hot pressing; substantially equal; powder material; contacting surfaces; pressure loading; hot press; refractory articles; contacting surface; dimensional accuracy; desired article; die cavity; varying thickness; shaped refractory; pressing irregularly; /264/

Citation Formats

Steinkamp, William E., and Ballard, Ambrose H. Method for hot pressing irregularly shaped refractory articles. United States: N. p., 1982. Web.
Steinkamp, William E., & Ballard, Ambrose H. Method for hot pressing irregularly shaped refractory articles. United States.
Steinkamp, William E., and Ballard, Ambrose H. Fri . "Method for hot pressing irregularly shaped refractory articles". United States. https://www.osti.gov/servlets/purl/864129.
@article{osti_864129,
title = {Method for hot pressing irregularly shaped refractory articles},
author = {Steinkamp, William E. and Ballard, Ambrose H.},
abstractNote = {The present invention is directed to a method for hot pressing irregularly haped 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

Save / Share: