Method for forming a powdered or a granular material
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United States of America Patent
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Dec 11, 1990
Grant Date -
N/A
app pub date -
Aug 1, 1988
filing date -
Aug 30, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method in which various kinds of powdered or granular materials such as metal, ceramic and the like are put into a metal cylindrical container which can be plastically-deformed, or in the space between a container and a core or a substrate, the surroundings are sealed so that the powdered or granular materials do not leak out, the container is locally pressed by a small roller, and the locally pressed treatment is provided to the whole container region. Therefore, the internal powdered or granular materials are pressurized to a uniform density without regard to selective parts, and the materials are formed to various shapes by means of the local pressing.
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