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2 299 103

(13)

(51)

IPC

B21B3/02(2006-01-01)

(21) (22)

Application

2005132447/02, 2005-10-20

(24)

Start date

2005-10-20

(22)

Actual filing date

2005-10-20

(45)

Published

2007-05-20

(72)

Inventor

Gramotnev Konstantin IgorevichPetrov Sergej Al'BertovichSadovskij Aleksej Valer'Evich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

COMPOSITION-MATERIAL BLANKS HOT ROLLING METHOD (VARIANTS) Russian patent published in 2007 - IPC B21B3/02

Abstract RU 2299103 C1

FIELD: processes and equipment for hot rolling of blanks of composition steel materials.

SUBSTANCE: method comprises steps of uniformly heating blank till temperature 950 -1200°C and reducing it at least during one pass in rolling stand at providing elongation factor for pass 1.2 - 2.5. In variant of invention blank may be heated till temperature 800 -950°C and in such case reduction is realized with elongation factor for pass 1.2 - 2.5.

EFFECT: possibility for providing improved deformation condition in the mostly hard-to-deformable region of material due to taking into account mutual influence factor of regions of composition material.

12 cl, 3 dwg, 5 tbl

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RU 2 299 103 C1

Authors

Gramotnev Konstantin Igorevich

Petrov Sergej Al'Bertovich

Sadovskij Aleksej Valer'Evich

Dates

2007-05-20—Published

2005-10-20—Filed