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2 301 118

(13)

(51)

IPC

B21B1/08(2006-01-01)

(21) (22)

Application

2005126772/02, 2005-08-24

(24)

Start date

2005-08-24

(22)

Actual filing date

2005-08-24

(45)

Published

2007-06-20

(72)

Inventor

Lutsenko Andrej NikolaevichNikiforov Vladislav Vasil'EvichMonid Vladimir Anatol'EvichBashmachenko Nikolaj VladimirovichTrajno Aleksandr Ivanovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

CHANNEL PRODUCTION METHOD Russian patent published in 2007 - IPC B21B1/08

Abstract RU 2301118 C2

FIELD: metallurgy; rolling.

SUBSTANCE: invention can be used in manufacture of equal-flange steel channels. According to invention, billet is heated, rolled in several passes in horizontal and vertical grooved rolls with into sectional strip, splayed profile is formed and then channels are cooled and subjected to cold straightening with bending of flanges. During last pass rolling is carried out with forming of angle between wall and flange of channel equal to 88.4-89.5° and at cold straightening, flanges are bent through angle of 5.5-12°.

EFFECT: improved quality and increased yield.

1 ex, 1 tbl, 1 dwg

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RU 2 301 118 C2

Authors

Lutsenko Andrej Nikolaevich

Nikiforov Vladislav Vasil'Evich

Monid Vladimir Anatol'Evich

Bashmachenko Nikolaj Vladimirovich

Trajno Aleksandr Ivanovich

Dates

2007-06-20—Published

2005-08-24—Filed