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Honda Giken Kogyo Kabushiki Kaisha

Atsushi Shirakawa

Akira Fujiwara

Noriaki Matsumoto

Kazushige Yakubo

A chain guide member used in a chain transmission apparatus, and manufacturing method and apparatus thereof. The chain guide member has a sliding contact section extending along a traveling surface of a chain and coming into sliding contact with the chain, and a reinforcement main body reinforcing and supporting the sliding contact section along the traveling surface of the chain. A part or all of a joint portion between the sliding contact section and the reinforcement main body is joined by melting.

Chain guide member, a chain guide member manufacturing method and a chain guide member manufacturing apparatus

In a processing method for strengthening carbon steel materials, a carbon steel having an average hardness in the range of HRC 50 to 57 and a bainite structure is subjected to a tension working so as to provide a residual strain of at least 0.3% to the carbon steel. The tensile load in the tension working exceeds the yield point, and is 95% or less of the fracture load.

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Wako, Japan

Atsushi Shirakawa