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2 178 014

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IPC

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Application

2000111295/02, 2000-05-06

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Start date

2000-05-06

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Actual filing date

2000-05-06

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Published

2002-01-10

(72)

Inventor

Tetjukhin V.V.Levin I.V.Dushin V.S.Korobshchikov V.G.Kurochkina L.G.Petren' M.G.

(73)

Holder

Oao Verkhnesaldinskoe Metallurgicheskoe Proizvodstvennoe Ob"Edinenie

METHOD OF ROLLING BARS FROM PSEUDO β- TITANIUM ALLOYS Russian patent published in 2002 - IPC

Abstract RU 2178014 C1

FIELD: production of bars from pseudo--β- titanium alloys for manufacture of bolts. SUBSTANCE: rolling of bars is performed in β- area at two stages; final rolling performed in (α+β)--area is accompanied by air cooling after each deformation. Rolling parameters are as follows: first stage - heating to Trp + (40-150)C, deformation degree, 97 to 97.6 %; second stage - heating to Trp +20C, deformation degree, 37 to 38 %; final rolling - heating to Trp - (20-50)C, deformation degree, 54 to 55 %. EFFECT: possibility of obtaining microstructures of 1-2 type acc. to scale; possibility of obtaining strength of no less than 85 kgf/sq. mm and conducting cold upsetting at degree of 75 %. 6 dwg, 2 ex

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RU 2 178 014 C1

Authors

Tetjukhin V.V.

Levin I.V.

Dushin V.S.

Korobshchikov V.G.

Kurochkina L.G.

Petren' M.G.

Dates

2002-01-10—Published

2000-05-06—Filed

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