OIL COMPOSITION FOR COLD ROLLING

Japanese Patent JP3709667

B2

PROBLEM TO BE SOLVED: To obtain an oil composition for cold rolling having excellent emulsion stability and rolling lubricity by compounding a base oil with a cationic emulsifier, a nonionic high-molecular compound and a higher aliphatic alcohol.
SOLUTION: This composition is composed of the following components (a) to (d) : (a) a base oil selected from an animal or vegetable oil, a mineral oil and an ester; (b) a cationic emulsifier obtained by adding an N,N- dialkylaminoalkylamine to a copolymer of an α-olefin and a maleic anhydride; (c) a nonionic high-molecular compound obtained by grafting a polyethylene glycol as a hydrophilic group with a modified polyester or polyolefin as a lipophilic group in a comb shape; and (d) a higher aliphatic alcohol. The composition has an excellent emulsion stability, i.e., a low physical unit of oil, and high rolling lubricity against a large amount of iron powder which is generated in cold rolling of common steel, stainless steel or silicon steel, especially silicon steel, and the composition can give excellent surface roughness of rolled material after the cold rolling.

Norihisa Okada
Natsuki Namura
Atsuro Uemura
Akagi Isao
Ryonobu Ishiwatari

JP22135297A

October 26, 2005

August 18, 1997

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jfe Steel Corporation

C10M161/00; C10M169/04; C10M173/00; C10N20/04; C10N30/00; C10N30/04; C10N30/06; C10N40/24; (IPC1-7): C10M169/04; C10M173/00

JP58187494A
JP6236496A
JP5778493A
JP63393A
JP601292A
JP60203699A

Nozomi Watanabe
Haruko Sanwa

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