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PURPOSE:To improve wear-resistance and heat-resisting property of a slide surface by forming a ceramic layer on the surface of a metallic base material directly or through a bonding assisting layer for a slide surface. CONSTITUTION:A ceramic layer 2a is formed on a metallic base material 1 directly...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To improve wear-resistance and heat-resisting property of a slide surface by forming a ceramic layer on the surface of a metallic base material directly or through a bonding assisting layer for a slide surface. CONSTITUTION:A ceramic layer 2a is formed on a metallic base material 1 directly or through a bonding assisting layer 3 of a glass layer or a metal solder layer. The base material is used for forming a slide surface of a cylinder of a pump, a cylinder of an internal combustion engine, a bearing, a slide table of a machine tool, a brake shoe and the like. It is desirable that the metallic base material 1 should have the same coefficient of thermal expansion as the ceramic. As a method for forming the ceramic layer 2a on the metallic base material 1 directly, there are a vacuum evaporation method, an ion plating method, a sputtering method, a chemical evaporation method, a plasma thermal spraying method, and a wire explosive thermal spraying method. The bonding assisting layer is formed on the metallic base material 1 by various methods, and the ceramic layer 2a is formed in the same method as the above. |
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