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    • 54. 发明专利
    • REMOVAL OF OXIDIZED METAL FILM
    • JPS56134177A
    • 1981-10-20
    • JP3090780
    • 1980-03-13
    • FUJIKURA LTD
    • MAEJIMA SEIJIYUSUZUKI TAKAOISHIMATA KAZUOWATANABE KAZUO
    • B24C11/00
    • PURPOSE:To prevent the occurrence of both physical and chemical problems on the surface of a treated metal by employing a metal the same in the type as the treated metal or a particle of an oxide thereof as blasting material when an oxidized metal film is peeled off. CONSTITUTION:When a particle of a metal the same in the type as a treated metal or a particle of an oxide thereof is used in a single or mixed manner as blasting material, pieces of the metal impinging each other during the blasting don't cause any progress in corrosion, lowering in electric characteristics or other problems on the surface of the treated metal even when left thereon or sticking thereinto. This is because there is no difference in the tendency of ionization between the two metals, which are the same in the type. The reason why the particles of the oxide are mixed is that the hardness and the strength can be increased in the surface treatment of a metal, for example, aluminum. Thus, this method can eliminate physical and chemical problems on the surface of the treated metal.