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2 296 640

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(51)

IPC

B21D5/00(2006-01-01)

(21) (22)

Application

2005128006/02, 2005-09-07

(24)

Start date

2005-09-07

(22)

Actual filing date

2005-09-07

(45)

Published

2007-04-10

(72)

Inventor

Arkhandeev Aleksandr VladimirovichAntipanov Vadim Grigor'EvichBelyshev Aleksandr SergeevichStefanenkov Andrej Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

BENT CHANNEL Russian patent published in 2007 - IPC B21D5/00

Abstract RU 2296640 C1

FIELD: rolled stock production.

SUBSTANCE: bent channel, mainly with thickness S = 7 - 8 mm from low-alloy steel strip blank with predetermined properties is made of manganese steel containing boron and vanadium. Channel has temporary strength σ_B in range 600 - 610 MPa and relation of yield limit value σ_T and σ_B value σ_T /σ_B= 0.87 - 0.90. It provides radius values R of bent zones no more than 1.5S.

EFFECT: improved operational properties of bent channels of low-alloy steel blank of increased strength.

1 dwg, 1 ex

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RU 2 296 640 C1

Authors

Arkhandeev Aleksandr Vladimirovich

Antipanov Vadim Grigor'Evich

Belyshev Aleksandr Sergeevich

Stefanenkov Andrej Nikolaevich

Dates

2007-04-10—Published

2005-09-07—Filed