BLACK CHROMIUM PLATING LIQUID AND BLACK CHROMIUM PLATING METHOD USING THE SAME

BLACK CHROMIUM PLATING LIQUID AND BLACK CHROMIUM PLATING METHOD USING THE SAME

PROBLEM TO BE SOLVED: To provide a trivalent chromium-containing black chromium plating liquid, wherein a uniform and dense mat black coating film can be formed by performing an electroplating operation. SOLUTION: Chromium chloride is dissolved in water together with sodium sulfite and/or potassium...

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Bibliographische Detailangaben
Hauptverfasser: YOSHIZAKI KAZUHIRO, TAKATANI MATSUFUMI, OGAWA YASUTAKA
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a trivalent chromium-containing black chromium plating liquid, wherein a uniform and dense mat black coating film can be formed by performing an electroplating operation. SOLUTION: Chromium chloride is dissolved in water together with sodium sulfite and/or potassium sulfite, and further, potassium iodide is incorporated therein, so as to obtain the black chromium plating liquid. COPYRIGHT: (C)2007,JPO&INPIT