Toyota Jidosha Kabushiki Kaisha

Toyota School Foundation

Mec International Co., Ltd.

Aoki Science Institute Co., Ltd.

Tetra Co., Ltd

Nippon Quaker Chemical, Ltd.

Eiji Tabata

Yuichi Furukawa

Hiroyuki Matsubara

Fumio Kawahara

Yoshiki Tsunekawa

Toshiaki Shimizu

Masanao Kobayashi

Hiroaki Komatsubara

Toshikazu Ikeda

Takashi Morikawa

Ikuo Yamauchi

Yuzo Matsuda

Soichiro Ishida

Katsumi Hongyo

A plunger lubricant for die casting includes a component (a), a component (b), a component (c), and water. The component (a) is one or two or more compounds selected from among mineral oils, synthetic hydrocarbons, and fatty acid esters. The component (b) is one or two or more compounds selected from among alkali metal salts of higher fatty acids or alkali metal salts of aliphatic hydroxy acids. The component (c) is an alkali metal salt of an oxoacid or polyoxoacid that is able to be dehydrated and condensed.

Plunger lubricant for die casting and method of applying the same

An oil-based release agent of the present invention contains a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b), is applied to a metal die used for die casting or casting, has high adhesion and high lubricity even with respect to a metal die at a high temperature particularly of 300&#xb0; C. or higher, and can prevent seizure. In addition, the present invention provides a method for applying the oil-based release agent of the present invention by controlling an adhesion amount thereof by micronization and speed-control thereof with respect to a metal die at a high temperature, and an electrostatic application method.

High temperature heat-resistant oil-based release agent, high temperature heat-resistant electrostatic application-type oil-based release agent, and application method therefor

There is provided a nitrided layer repair method in which a molten metal is pressurized and solidified, and thus a nitrided layer formed on a cavity surface of a mold used to form a casting object is repaired. In the nitrided layer repair method, a nitriding source is applied to the cavity surface, and the cavity surface of the mold is nitrided by heating and pressurizing the cavity surface using the molten metal.

Nitrided layer repair method

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Nisshin, Japan

Eiji Tabata