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Patent Searching and Data


Title:
COLD ROLLING METHOD FOR STAINLESS THIN STEEL SHEET
Document Type and Number:
Japanese Patent JPH08215712
Kind Code:
A
Abstract:

PURPOSE: To enable high-speed rolling of a stainless steel sheet having excellent gloss by generating a coating film on a work roll at an early stage and eliminating its irregurality.

CONSTITUTION: Using a water-soluble rolling oil whose viscosity at 40°C is 5-50cSt, the potential (E:V) of the rolling roll is controlled within the range shown by the equation I and equation II corresponding to the pH of the rolling oil. The max. value: Emax (V)=1-(pH×0.1)... Equation I. The min. value: Emin (V)=-(pH×0.1)... Equation II. The control of pH may be executed by adding ≥1 kinds of alkyl amine and alkanol amine. At the time of actual rolling, the above-mentioned control is applied to only the initial pass after roll change and only the control of pH may be executed on and after the 2nd pass.


Inventors:
YAMAMOTO HIDEO
MATSUMOTO KEIJI
Application Number:
JP3091695A
Publication Date:
August 27, 1996
Filing Date:
February 20, 1995
Export Citation:
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Assignee:
SUMITOMO METAL IND
International Classes:
B21B3/02; B21B1/22; B21B27/10; (IPC1-7): B21B3/02; B21B1/22; B21B27/10
Attorney, Agent or Firm:
Hirose Shoichi