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2 165 808

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IPC

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Application

99122475/02, 1999-10-26

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Start date

1999-10-26

(22)

Actual filing date

1999-10-26

(45)

Published

2001-04-27

(72)

Inventor

Tetjukhin V.V.Dubinskij F.S.Dushin V.S.Korobshchikov V.G.Levin I.V.Kurochkina L.G.Zajtsev A.S.

(73)

Holder

Verkhnesaldinskoe Metallurgicheskoe Proizvodstvennoe Ob"Edinenie

METHOD FOR MAKING ROLLED BARS Russian patent published in 2001 - IPC

Abstract RU 2165808 C1

FIELD: manufacture of rolled bars, namely, making round rods of titanium base alloys with increased resistance to plastic deformation. SUBSTANCE: method comprises steps of hot rolling of blank with deformation rate (0.5 -10) 1/s at relation of axes of oval grooved pass b/h=1.4-1.75 and at curvature radius of grooved pass along its height less than diameter of blank guided to grooved pass. Circumferential speed of rolling along bottom of grooved pass of upper roll is higher than circumferential speed of rolling along bottom of grooved pass of lower roll by (0.4 -0.5)%. Rolled bar is made of titanium base alloy. EFFECT: possibility for rolling high quality round rods of titanium base alloy without surface flaws and with fine equiaxial structure. 3 cl, 2 dwg

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RU 2 165 808 C1

Authors

Tetjukhin V.V.

Dubinskij F.S.

Dushin V.S.

Korobshchikov V.G.

Levin I.V.

Kurochkina L.G.

Zajtsev A.S.

Dates

2001-04-27—Published

1999-10-26—Filed