Silver peeling agent and preparing method thereof

The invention discloses a silver peeling agent and a preparing method thereof. The preparing method includes the steps that (1) sulfuric acid, nitric acid and water are mixed and cooled to prepare a mixture M1; (2) a nitrocompound and fluoride are added into the mixture M1, the pH value is adjusted...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG YING, WAN MEIYUN, SHEN FUJIAN, ZHANG HEPING
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:	The invention discloses a silver peeling agent and a preparing method thereof. The preparing method includes the steps that (1) sulfuric acid, nitric acid and water are mixed and cooled to prepare a mixture M1; (2) a nitrocompound and fluoride are added into the mixture M1, the pH value is adjusted to range from 3 to 5, and a mixture M2 is prepared; and (3) the mixture M2, molysite, thiourea and an annexing agent are mixed to be heated, and therefore the silver peeling agent is prepared. By means of the method, the silver peeling speed of the prepared silver peeling agent is high in speed, and the glossiness of a silver coating layer is basically kept unchangeable.