METHOD FOR COLORING TITANIUM ALLOY

PURPOSE:To easily and uniformly form bright colors of various color tones by electrifying and heating a material to be treated consisting of titanium alloy in an oxidizing atmosphere and forming an oxide film. CONSTITUTION:At the time of coloring a titanium alloy wire, first a cleaning tank 3 and a...

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Bibliographische Detailangaben
1. Verfasser:	SAKAMOTO NAOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PURPOSE:To easily and uniformly form bright colors of various color tones by electrifying and heating a material to be treated consisting of titanium alloy in an oxidizing atmosphere and forming an oxide film. CONSTITUTION:At the time of coloring a titanium alloy wire, first a cleaning tank 3 and a drier 4 are provided between a wire feed bobbin 1 and a coiling bobbin 2, and then, a wire W continuously supplied from the feed bobbin 1 is degreased in the cleaning tank 3, dried by means of the drier 4, and electrified and heated between rotating electrodes 5, 5', by which an oxide film is formed. The titanium alloy is easily subjected to selective oxidation on electrification because it is active at high temp., and heating and a transparent oxide film can be formed. When heated up to about 550 deg.C, this oxide film shows gold, purplish-red, purple, blue, and yellow interference colors in succession.