Screw type extruding or kneading machine and screw used therein
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United States of America Patent
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-
May 24, 1988
Grant Date -
N/A
app pub date -
Apr 15, 1986
filing date -
Apr 18, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The outer periphery of a screw and the inside of a barrel of a screw type extruding or kneading machine are made of ceramics, to improve the abrasion and heat resistances thereof, so that the screw and the barrel will operate for a longer life time even if a hard material or a material containing a hard material is worked.
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