Mitsubishi Denki Kabushiki Kaisha

Japan Atomic Energy Research Institute

Toshitsugu Ohmura

Masaharu Moriyasu

Megumi Ohmine

Hideyuki Yagi

Katsuyuki Ara

Hideo Ikeda

Hideo Imeda

A method of manufacturing a heat resisting magnetic scale is disclosed which comprises a manufacturing process in which at least a part of a heat resisting base is heated and immediately cooled for the purpose of fusing the heated part to the base and changing both the magnetic characteristics of the part of the base which has been heated and the Curie point of the part which has been heated is raised to 100.degree. C. or higher.

Method of manufacturing heat resisting magnetic scale

A method of manufacturing a heat resisting magnetic scale is disclosed which comprises a manufacturing process in which at least a part of a heat resisting base is heated and a manufacturing process in which the part which has been heated is immediately cooled down for the purpose of changing the magnetic characteristics of the part of the base which has been heated and the Curie point of the part which has been heated is raised to 100.degree. C. or higher. A heating resisting magnetic scale which cannot be demagnetized at high temperatures and cannot be separated even if it is subjected to rapid change in temperatures, and which exhibits excellent stability and measuring precision.

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Amagasaki, Japan

Toshitsugu Ohmura