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2 005 809

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IPC

(21) (22)

Application

4910941/02, 1991-02-13

(22)

Actual filing date

1991-02-13

(45)

Published

1994-01-15

(72)

Inventor

Gerasimov S.A.Bakhirev M.A.Puchkov V.G.Karpukhin S.D.Velishchanskij A.V.Kucherjavyj V.I.Zhigulev A.N.Kiselev M.E.Rykov V.I.

(73)

Holder

Gerasimov Sergej AlekseevichBakhirev Mikhail AlekseevichPuchkov Vladimir Grigor'EvichKarpukhin Sergej DmitrievichVelishchanskij Aleksandr VladimirovichKucherjavyj Vjacheslav IvanovichZhigulev Aleksej NikolaevichKiselev Mikhail Evgen'EvichRykov Vitalij Ivanovich

PROCESS FOR HEAT TREATMENT OF QUICK-CUTTING STEELS Russian patent published in 1994 - IPC

Abstract RU 2005809 C1

FIELD: treatment of ferrous surfaces. SUBSTANCE: process comprises the hardening of quick-cutting steel surface by anodic polarization in metal salt- bath for 1.5-2.5 hours at anode potential of 0.12 to 1.20 V and at temperatures of 823-1190 K followed by air cooling of the hardened surface. EFFECT: high quality of steel articles. 1 tbl

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RU 2 005 809 C1

Authors

Gerasimov S.A.

Bakhirev M.A.

Puchkov V.G.

Karpukhin S.D.

Velishchanskij A.V.

Kucherjavyj V.I.

Zhigulev A.N.

Kiselev M.E.

Rykov V.I.

Dates

1994-01-15—Published

1991-02-13—Filed