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2 009 272

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C1

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IPC

(21) (22)

Application

5041649/02, 1992-03-12

(22)

Actual filing date

1992-03-12

(45)

Published

1994-03-15

(72)

Inventor

Itin V.I.Lykov S.V.Nesterenko V.P.Ozur G.E.Proskurovskij D.I.Pogrebnjak A.D.Rotshtejn V.P.

(73)

Holder

Institut Sil'Notochnoj Ehlektroniki So Ran

METHOD FOR HARDENING STEEL PRODUCTS Russian patent published in 1994 - IPC

Abstract RU 2009272 C1

FIELD: thermal treatment of surfaces. SUBSTANCE: method for hardening steel products consists in multiple heating of a product surface to the hardening temperature by electron beam pulses having pulse duration (0,5-3)·10-6 s, electron energy 10-50 keV, energy density 2-5 J/cm2, and interpulse interval not lower than the value defined from an expression presented in the description. Prior to that a coating of refractory metals nitrides is applied to the surface of the object. EFFECT: improved quality of the product. 3 tbl

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RU 2 009 272 C1

Authors

Itin V.I.

Lykov S.V.

Nesterenko V.P.

Ozur G.E.

Proskurovskij D.I.

Pogrebnjak A.D.

Rotshtejn V.P.

Dates

1994-03-15—Published

1992-03-12—Filed

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