PEELING LIQUID FOR COATING OF TIN OR TIN ALLOY

PROBLEM TO BE SOLVED: To provide a peeling liquid for peeling a coating of tin or a tin alloy from a substrate of a metal base material at high speed. SOLUTION: The peeling liquid for the coating of tin or the tin alloy comprises an aqueous solution including (a) hydrogen peroxide (b), ammonium acid...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI KENICHI, MORIYAMA KENICHI, KOGURE NAOKI
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 MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a peeling liquid for peeling a coating of tin or a tin alloy from a substrate of a metal base material at high speed. SOLUTION: The peeling liquid for the coating of tin or the tin alloy comprises an aqueous solution including (a) hydrogen peroxide (b), ammonium acid fluoride (c), inorganic acid (d), amidosulfuric acid or amidosulfuric acid salt, and (e) a thioamide compound.