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IPC

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Application

5031815/27, 1992-03-12

(22)

Actual filing date

1992-03-12

(45)

Published

1994-01-30

(72)

Inventor

Gridnevskij V.I.Antipanov V.G.Rashnikov V.F.Pakharev V.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Metallurgicheskij Kombinat"

METHOD FOR PRODUCTION OF TROUGH-SHAPED SHAPES Russian patent published in 1994 - IPC

Abstract RU 2006315 C1

FIELD: metal pressure shaping. SUBSTANCE: method for production of trough- shaped shapes includes consecutive passes of strip billet bending by rolls of horizontal shape bending mill with simultaneous clamping by the rolls the horizontal web and flanges of the shape, with the thickness of the strip billet being not less than 4 mm. During the two last passes the vertical webs are additionally bent in the direction towards the axis of the shaping by applying force to the web edges: at an angle of 9. . . 10 deg during the last but one pass; and at an angle of 4. . . 5 deg during the last pass. During the last but one pass the flanges are released from the clamping by the rolls. EFFECT: improved quality of the product. 1 dwg

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RU 2 006 315 C1

Authors

Gridnevskij V.I.

Antipanov V.G.

Rashnikov V.F.

Pakharev V.V.

Dates

1994-01-30—Published

1992-03-12—Filed

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