US PATENT SUBCLASS 419 / 29
.~.~ Subsequent heat treatment (e.g., annealing, etc.)

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

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
26  DF  .~ Post sintering operation {3}
29.~.~ Subsequent heat treatment (e.g., annealing, etc.)

DEFINITION

Classification: 419/29

Subsequent heat treatment, (e.g., annealing, etc.):

(under subclass 26) Processes wherein the sintered compact is subjected to an additional heating step.

(1) Note. The additional heating step may be for the purpose of, e.g., annealing the sintered compact, etc.

SEE OR SEARCH CLASS

148, Metal Treatment,

126.1, for heat treating unsintered metal powder which is not eventually consolidated into a unitary body.