A cleaning method for a developing tank or a stripping tank.

CN116855954BActive Publication Date: 2026-04-03LUXSHARE PRECISION (CHUZHOU) TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-22
Publication Date
2026-04-03
Patent Text Reader

Abstract

This invention relates to a cleaning method for developing tanks or stripping tanks. The cleaning method includes: sequentially acid washing and salt washing of the developing tank or stripping tank; the acid washing solution used is fluoride-free hydrochloric acid; the salt washing solution used is sodium carbonate solution and / or sodium bicarbonate solution. The cleaning method provided by this invention, by adjusting the composition of the washing solution during the cleaning process, enables the hydrochloric acid to form a dense chromium oxide film on the chromium in stainless steel tanks, thereby preventing corrosion of the stainless steel by the hydrochloric acid. Simultaneously, it removes adhering impurities within the tank, achieving highly efficient cleaning of developing tanks and stripping tanks.
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Citation Information

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