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2 112 811

(13)

C1

(51)

IPC

(21) (22)

Application

96119897/02, 1996-10-03

(22)

Actual filing date

1996-10-03

(45)

Published

1998-06-10

(72)

Inventor

Karpov L.P.Sukhantsev A.G.

(73)

Holder

Kombinat

METHOD OF LOW-DEFORMATION HARDENING AFTER NITROCEMENTATION Russian patent published in 1998 - IPC

Abstract RU 2112811 C1

FIELD: mechanical engineering. SUBSTANCE: invention relates to manufacturing parts with nitrocementation (cementation) with low allowances for mechanical conversion after heat treatment. Cooling time from austenitization temperature to 100 C is determined for one part belonging to serial manufacture party. The part is hardened in cold oil to 100 C, transferred into boiling water, held there for 10- 15 min, and then cooled in air. EFFECT: extended production possibilities of low-deformation hardening in oil and reduced strains. 2 tbl

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RU 2 112 811 C1

Authors

Karpov L.P.

Sukhantsev A.G.

Dates

1998-06-10—Published

1996-10-03—Filed

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