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2 356 693

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IPC

B22F3/24(2006-01-01)

C22C29/00(2006-01-01)

(21) (22)

Application

2007139225/02, 2007-10-22

(24)

Start date

2007-10-22

(22)

Actual filing date

2007-10-22

(45)

Published

2009-05-27

(72)

Inventor

Oskolkova Tat'Jana Nikolaevna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Industrial'Nyj Universitet"

TEMPERING METHOD OF HARD ALLOY Russian patent published in 2009 - IPC B22F3/24 C22C29/00

Abstract RU 2356693 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to powder metallurgy, particularly to tempering method of hard alloys on the basis of tungsten carbide for boring tool. Tempering of product from the hard alloy on the basis of tungsten carbide is implemented by means of heating of alloy up to the temperature higher 1100°C by means of high-frequency current and cooling in 8-10% aqueous solution of polymer "ПК-М" with usage of sprayer.

EFFECT: method provides increasing of alloy hardening and service durability of tool made of it.

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RU 2 356 693 C1

Authors

Oskolkova Tat'Jana Nikolaevna

Dates

2009-05-27—Published

2007-10-22—Filed