Asahi Malleable Iron Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Osaka Yuki Kagaku Kogyo Kabushiki Kaisha

Asahi Katantetsu Kabushiki Kaisha

Kimio Ochiai

Akio Fujinaka

Eiji Suzuki

Takashi Kato

Toshiya Nishino

Masaru Kurebayashi

Yasuo Daimon

Takashi Ban

Yasunori Komatsu

Hidenori Kanno

A process for manufacturing a vehicle wheel includes the steps of preparing a wheel raw material blank in which rim raw material is integrally formed at a peripheral edge of a disk member. The rim portion is formed by spinning the rim raw material while rotating the wheel material about the axis of the disk member. Thereafter, such spin molded raw material is heat treated, and then machined by cutting. The center portion of the rim is spin formed to its final thickness while the rim edge portions are left with a thickness after spin molding that requires machine cutting to the final dimensions.

Spin molding process for manufacturing a vehicle wheel

A paint film structure formed on an aluminum member or aluminum alloy member has a first paint film layer formed on a surface of the aluminum member or aluminum alloy member and a second paint film layer formed on a surface of the first paint film layer, the first and second paint film layers being chiefly composed of a colloidal silica, an organoalkoxysilane part hydrolysis condensation product, and a polymer or copolymer of an unsaturated ethylenic monomer, polymeric content or copolymeric content of the unsaturated ethylenic monomer in the first paint film layer being less than polymeric content or copolymeric content of the unsaturated ethylenic monomer in the second paint film layer.

Paint film structure formed on aluminum member or aluminum alloy member

A coating composition comprising a colloidal silica, a partial condensate of organoalkoxysilane hydrolyzate, a polymer or a copolymer of unsaturated ethylenic monomers, a surface active agent and glycol derivatives, which is coated on a wheel for vehicles shows excellent properties such as adhesive property, filiform corrosion resistance, stain resistance, weather-resistance and impact resistance. A wheel coated with the coating composition for vehicles also shows excellent properties such as filiform corrosion resistance, stain resistance, weather-resistance and impact resistance.

Coating composition and wheel coated with the same for vehicles

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Shizuoka, Japan

Kimio Ochiai