Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1988-01-21
1989-07-11
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 23, 241DIG37, 523156, 523157, B02C 1912
Patent
active
048464082
ABSTRACT:
Pieces of aramid cloth impregnated with a blend of phenolic and polyvinyl butyral resins are cryogenically chilled to the point of embrittlement in a liquid nitrogen bath and then fed to a rotary impact mill to comminute the pieces into a fibrous material suitable for use in brake linings or other friction applications. The rotary impact mill is chilled by cold gaseous nitrogen from the liquid nitrogen bath, the flow of which is controlled in response to a thermocouple disposed near the mill exit.
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Curtis Matthew P.
Sallavanti Robert A.
Gentex Corporation
Rosenbaum Mark
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