Honda Giken Kogyo Kabushiki Kaisha

Toyo Tire & Rubber Co., Ltd.

Shigeru Ohno

Hiroshi Ikegami

Hideaki Ikeda

Koji Hiramatsu

Kazuma Nishitani

Masami Watanabe

Katsuhiro Nakatani

Keizou Tanaka

Hideo Nakamura

Masanobu Ishikawa

Tsuyoshi Kokusho

A sidewall rubber disposed outside of a carcass layer, reinforcing a portion between beads, in a widthwise direction of the tire is configured from a wide rubber ribbon having a width of 20 to 100 mm wound spirally along a circumferential direction of the tire outward of the tire such that the rubber ribbon is deviated radially outward of the tire.

Pneumatic tire and producing method of pneumatic tire

The composition of a hard-facing welding material to be overlaid onto a cast iron base metal followed by a supercooling treatment for hardening must lie above a line LA in a Schaeffler's structure diagram which is represented by a Cr equivalent and a Ni equivalent. On the other hand, if the base metal is preheated, the carbon precipitation line will be at the Ni equivalent of 34 (LC1), and the Cr equivalent will thus be above 4. However, if the Cr equivalent is above 4, there will occur cracks after welding (examples in which cracks occurred are shown by square marks represented by a in FIG. 1). As a solution, the carbon precipitation line was raised up to the Ni equivalent of 38 without preheating the base metal, and the Cr equivalent of the welding material was made to be 4 or less.

Welding material for use in hard-facing and method of determining

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Osaka, Japan

Shigeru Ohno