Zinc supplementing method for cyanide-free alkaline zinc plating process

The invention discloses a zinc supplementing method for a cyanide-free alkaline zinc plating process, which comprises the following steps: setting the zinc ion concentration before zinc supplementing in a cyanide-free alkaline plating solution as d1, setting the zinc ion concentration required by th...

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Bibliographic Details
Main Authors ZHU YICHEN, LI ZHEN, CONG XIAO, FENG XIAOZHEN, ZHANG YONGQIN, WANG GUOQI
Format Patent
LanguageChinese
English
Published 08.11.2022
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Summary:The invention discloses a zinc supplementing method for a cyanide-free alkaline zinc plating process, which comprises the following steps: setting the zinc ion concentration before zinc supplementing in a cyanide-free alkaline plating solution as d1, setting the zinc ion concentration required by the zinc plating process as D1, and setting the zinc ion concentration after zinc supplementing in the cyanide-free alkaline plating solution as d2; the method comprises the following steps: when d1 is greater than or equal to 0.9 D1 and less than D1, heating a cyanide-free alkaline plating solution to 30-60 DEG C, and soaking a mesh basket loaded with a zinc block in the cyanide-free alkaline plating solution until d2 is greater than or equal to D1; when d1 is smaller than 0.9 D1, the temperature of the cyanide-free alkaline plating solution is increased to 45-60 DEG C, and a mesh basket loaded with a zinc block is soaked in the cyanide-free alkaline plating solution; the positive electrode of a power source is conn
Bibliography:Application Number: CN202210891613