Kabushiki Kaisha Toyota Chuo Kenkyusho

Nippondenso Co., Ltd.

Mikio Obayashi

Noboru Komatsu

Naoyoshi Watanabe

Yoshio Iwai

Nobuyoshi Ota

Minoru Doi

Cast iron is pretreated in an aqueous solution of nitric acid and then immersed in molten sulfur until a sulfurized layer is formed on its surface. The sulfurized layer is very thick and stable and has excellent molten aluminum resistance. Its uniformity is further improved by a subsequent diffusion treatment at elevated temperatures.

Method for sulfurizing cast iron

An alloy for use as a fuse element in a high temperature fuse characterized by having a high resistance to corrosion and a melting point at a fixed temperature within a range of 1000.degree. to 1100.degree.C. The alloy consists of copper containing 10-14% aluminum and 0-2.5% of a second constituent which second constituent consists of one or more metals selected from a group consisting of nickel, manganese and iron. The alloy also has desirable hardness and good workability to enable fabrication of the alloy into a fused element.

Alloy for a high temperature fuse

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Nagoya, Japan

Mikio Obayashi