Kabushiki Kaisha Kobe Seiko Sho

Kao Corporation

Toyota Jidosha Kabushiki Kaisha

Kuniaki Matsui

Takehiko Ichimoto

Yutaka Suzuki

Hiroki Nakajima

Kimikazu Ikemoto

Masataka Negishi

Shinichiro Nakamura

Yoshirou Tomioka

Yoshio Okamoto

Tomoyuki Sugita

Masaru Adachi

Yuzo Kawakami

Tsuneharu Mori

Hiroyuki Andoh

Yukio Sugishita

The present invention relates to a lubricant composition for press-forming an aluminum or aluminum alloy sheet at low temperatures. The composition contains a component (a): 45 to 90% by weight of one or more hydrocarbons selected from the group consisting of mineral oils, synthetic naphthenes, polybutenes, and poly(mono).alpha.-olefins, and component (b): 10 to 45% by weight of one or more C10-C24 linear or branched fatty alcohols. The ester value of the composition is not more than 70, and the kinematic viscosity is less than 20 cSt at 40.degree. C. When this composition is used in forming aluminum or aluminum alloy sheets, enhanced formability can be obtained, and shapes which could not obtained conventionally can be formed.

Lubricant composition for cryogenic forming of aluminum or aluminum

A water-dispersible oil composition for hot rolling aluminum or aluminum alloys having excellent lubricity and emulsion stability and which minimizes heat deterioration over prolonged periods of time contains the following components (a) to (d): (a) a mineral oil, (b) 3 to 30% by weight of a fatty acid or its monoesters, or oils and fats, (c) 0.5 to 10% by weight of a C.sub.4 -C.sub.18 alkyl or alkenyl phosphoric (or phosphorous) acid ester, and (d) 0.1 to 10% by weight of a salt between a polymer and an organic acid salt, wherein the polymer has an average molecular weight of 10,000 to 1,000,000 and is a copolymer of a monomer represented by formula (1): ##STR1## wherein R.sup.1 is H or Me, R.sup.2 and R.sup.3 are independently H or C.sub.1 -C.sub.3 alkyl, m is an integer of 0 or 1, and n is an integer of 1, 2 or 3, and (meth) acrylamide and/or a (meth) acrylic acid salt. Rolled aluminum or aluminum alloy products having excellent surface quality can be obtained using this composition.

Oil compositions for hot rolling aluminum and aluminum alloys

The object of the present invention is to provide an aluminum plate for fabrication which has an excellent formability, easy degrease after fabrication, coating properties, and less tendency of flawing, in which the aluminum plate for fabrication which is plated, and coated with a lubricant containing (A) a fatty acid ester of polyol, (B) an alkaline or alkaline metal salt of sulfonate, and (C) a controlling agent, and having saponification value of 20 or more.

Aluminum plate excellent in formability

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Mooka, Japan

Kuniaki Matsui