Process for manufacture of powder compact feed materials for fine grained hardmetal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 2000
Grant Date -
N/A
app pub date -
Oct 31, 1997
filing date -
Nov 4, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The manufacture of powdered feed materials for hard fine grained metal body production includes the reduction of metal oxides into powdered metal and the subsequent carburization into metal carbide. Processes currently used are very cost intensive, mainly because of very long reaction times at high temperatures. According to applicant's economical process, the above reactions occur in the range of seconds and in a high-temperature cyclone as the reaction chamber. The apparatus is rather simple to construct. The stock to undergo reaction is continuously introduced into the chamber as a solid powdered phase with reaction gas and/or carrier gas, and passes through the chamber on predetermined paths for reaction, without leaving the solid state thereby.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully