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Patent Searching and Data


Title:
HOT ROLLING DEVICE DIRECTELY CONNECTED TO CONTINUOUS CASTING AND ROLLING METHOD THEREFOR
Document Type and Number:
Japanese Patent JPH07308701
Kind Code:
A
Abstract:

PURPOSE: To enable low speed rolling to be carried out while suppressing the temp. drop of a rolled stock and the generation of scale and to realize true mini hot-rolling by rolling a slab whose thickness is thiner than a specified value with equipment in which a continuous casting machine and a hot rolling mill are directely connected.

CONSTITUTION: By executing the temp. rising and scale removal of the slab 2 of ≤80mm thick which is cast with the continuous casting machine 1, rough rolling to 20-60mm thick with a roughihg mill 7 of a 4-high twin mill, further temp. rising and scale removal, finish rolling with finishing mills 19-21 provided with small diameter work rolls of ≤500mm diameter, a sheet of about 1.6-15mm thick or athick plate of about 3-40 mm thick is made. And, by taking the rolling speed on the outlet side of the finishing mills 19-21 as a low speed of ≤350 m/min, the scal of production is made smaller and, by making the length of equipment as ≤100m, the installed capacitor is reduced.


Inventors:
KAJIWARA TOSHIYUKI
YOSHIMURA YASUTSUGU
HORII KENJI
SEKI KOICHI
SHIMOGAMA HIRONORI
NISHINO TADASHI
HANZAWA CHUKICHI
GOTO AKIRA
Application Number:
JP10268794A
Publication Date:
November 28, 1995
Filing Date:
May 17, 1994
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B22D11/12; B21B1/00; B21B1/26; B21B1/46; B21B13/22; B21B29/00; B21B31/18; B21B45/00; B21B45/06; B21C47/02; B21B13/02; B21B13/14; B21B27/10; B21B28/04; B21B31/20; B21B45/08; (IPC1-7): B21B1/00; B21B1/46; B21B13/22; B21B29/00; B21B31/18; B21B45/00; B21B45/06; B21C47/02; B22D11/12
Attorney, Agent or Firm:
Kasuga