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2 178 004

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C1

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IPC

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Application

2001108764/02, 2001-04-03

(24)

Start date

2001-04-03

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Actual filing date

2001-04-03

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Published

2002-01-10

(72)

Inventor

Zakirov R.A.Koryt'Ko N.G.Vorob'Ev N.I.Mokrinskij A.V.Antonov V.I.Shaburov D.V.Kosolapov V.A.Judin Ju.V.Ehjsmondt Ju.G.Pyshmintsev I.Ju.Titov S.A.Pavljuk P.I.

(73)

Holder

Oao Cheljabinskij Metallurgicheskij Kombinat

METHOD OF HEAT TREATMENT OF CYLINDRICAL LARGE-SIZED ARTICLES Russian patent published in 2002 - IPC

Abstract RU 2178004 C1

FIELD: metallurgy and mechanical engineering; methods of heat treatment of large-sized cylindrical articles, alloyed steel forgings, for example. SUBSTANCE: proposed method includes heating to austenization temperature, holding, controllable cooling performed with water-and-air mixture at density of sprinkling of 0.5 to 2.0 l/sq. m. s to temperature of article surface (O-H.Rbeg+20)°C÷O-H.Rbeg and then at density of sprinkling of 0.1 to 0.5 l/sq. m. s to temperature of article surface (O-H.Rend-100)°C. EFFECT: possibility of attaining high hardness on surface of steel articles 180 to 800 mm in diameter over section. 1 tbl

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RU 2 178 004 C1

Authors

Zakirov R.A.

Koryt'Ko N.G.

Vorob'Ev N.I.

Mokrinskij A.V.

Antonov V.I.

Shaburov D.V.

Kosolapov V.A.

Judin Ju.V.

Ehjsmondt Ju.G.

Pyshmintsev I.Ju.

Titov S.A.

Pavljuk P.I.

Dates

2002-01-10—Published

2001-04-03—Filed

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