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Patent Searching and Data


Title:
ROLLING METHOD OF REVERSING HOT STRIP MILL
Document Type and Number:
Japanese Patent JP04138804
Kind Code:
A
Abstract:

PURPOSE: To prevent sagging down and to prevent the bearing part, shaft part or the like of table roller from damage by forcibly, upwards bending the tip part of a material to be rolled after rolling by making speed difference between the circumferential speeds of each work roll.

CONSTITUTION: In rolling method of the reversing hot strip mill of this invention, the circumferential speed of a lower work roll 3 is made higher by α% than the circumferential speed of an upper work roll 2 just before the material 1 to be rolled is bitten into the rolling mill A, also the circumferential speed of the lower work roll 3 is reduced at the same time of bitting the material 1 to be rolled and the circumferential speeds of the upper and lower work rolls are made equal. The tip part of the material 1 to be rolled is guided onto a table roller in the upward state after rolling. Therefore, the tip part of the material 1 to be rolled after rolling isn't brought into collision with the table roller and is smoothly transported.


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Inventors:
Ochi, Hiroyuki
Takagi, Atsushi
Tatewaki, Masabumi
Baba, Takahisa
Matsunaga, Masao
Application Number:
JP1990000256939
Publication Date:
May 13, 1992
Filing Date:
September 28, 1990
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD
International Classes:
B21B13/16; B21B1/38; B21B35/08; B21B37/00; B21B37/28; B21B37/46; B21B1/34; (IPC1-7): B21B13/16; B21B35/08; B21B37/00