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(19)

(11)

2 483 123

(13)

(51)

IPC

C21D9/22(2006-01-01)

C21C5/52(2006-01-01)

C21D1/78(2006-01-01)

C21D8/00(2006-01-01)

(21) (22)

Application

2012109590/02, 2012-03-13

(24)

Start date

2012-03-13

(22)

Actual filing date

2012-03-13

(45)

Published

2013-05-27

(72)

Inventor

Gurevich Jurij Grigor'EvichOvsjannikov Viktor Evgen'EvichChudinova Elena Aleksandrovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet"

METHOD OF MAKING COMPOSITE TOOL MATERIAL Russian patent published in 2013 - IPC C21D9/22 C21C5/52 C21D1/78 C21D8/00

Abstract RU 2483123 C1

FIELD: metallurgy.

SUBSTANCE: proposed method comprises loading charge composed of the mix of steel and iron chips into alundum crucible, smelting in furnace at 1250-1300°C, holding at said temperature for 3-4 min, unloading from the furnace and tempering in water to produce a ledeburite form inhomogeneity composed of white pig iron. Then, obtained ingot is heated to 680-800°C, forged and tempered to obtain composite structure martensite-white pig iron.

EFFECT: simplified process, homogeneous properties.

1 tbl, 8 dwg, 1 ex

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RU 2 483 123 C1

Authors

Gurevich Jurij Grigor'Evich

Ovsjannikov Viktor Evgen'Evich

Chudinova Elena Aleksandrovna

Dates

2013-05-27—Published

2012-03-13—Filed