US PATENT SUBCLASS 419 / 25
.~ Controlled cooling after sintering

Current as of: June, 1999
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419 /   HD   POWDER METALLURGY PROCESSES

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
25.~ Controlled cooling after sintering

DEFINITION

Classification: 419/25

Controlled cooling after sintering:

(under subclass 1) Processes in which the lowering of the temperature of the hot sintered product is regulated in some positive fashion.

(1) Note. Cooling at a stated rate or in a stated

atmosphere are examples of controlled cooling within the definition of this subclass.