Nippon Steel Corporation

Sayuri Iwata

Keishi Matsumoto

Takamitsu Takagi

Makoto Miyajima

Akira Tsuto

A method for producing a chemically treated alloy material is provided that suppresses a decrease in chemical treatability even in a case where chemical treatment is repeatedly performed. The method for producing a chemically treated alloy material of the present disclosure includes a chemical treatment step and a treatment solution regeneration step. In the chemical treatment step, an alloy material () is immersed in an oxalate treatment solution () containing oxalate ions and fluorine ions to perform a chemical treatment. In the treatment solution regeneration step, light is radiated to the oxalate treatment solution () during the chemical treatment and/or the oxalate treatment solution () after the chemical treatment.

Method for producing chemically treated alloy material, and chemical treatment solution regeneration apparatus used in method for producing chemically treated alloy material

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Tokyo, Japan

Sayuri Iwata