Email:jessy@jshengda.comWuxi Hengda Liquid-Purification Chemical Plant

Wuxi Hengda Liquid-Purification Chemical Plant

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Add:Nanyuan,Donggang Town,Xishan District,Wuxi City,Jiangsu,China



Contact Person: JessyZhou


Operation Characteristics of Stainless Steel Pickling Passivation Liquid

Normally,only the stainless steel container or parts that have been pretreated can be pickled and passivated by using stainless steel pickling passivation liquid.The stainless steel pickling passivation liquid is mainly used for the whole processing of small and unprocessed parts, soaking and spray are all OK.The solution temperature is kept at 21-60 ℃, and is checked every 10 minutes or so until uniform white acid etching is present.


In the process of actual treatment, the stainless steel pickling passivation solution is mainly for some small stainless steel workpieces or containers for overall processing, which can be immersed or sprayed.When the solution temperature is between 48 and 60°C, check every 20 minutes. When the solution is at 21 to 47°C, check once every hour until the surface produces a uniform passivation film.

Be sure to keep in mind,the container or component after treated by the stainless steel pickling passivation solution must be rinsed with clean water.Finally, test any part of the flushing surface with acid stone test paper, so that the PH value is between 6.5 and 7.5, then dry or blow dry with compressed air.


In addition, stainless steel containers and parts should avoid scratches the passivation film when handling hoisting and storage after pickling and passivation treatment.The austenitic stainless steel parts should be treated with pickling and passivation after heat treatment according to the drawing requirements.


And in the operating process, according to the requirements of the specific processing, the formulation and operation, concentration, volume ratio, liquid temperature, and operation time of the stainless steel pickling passivation solution can be adjusted appropriately according to the circumstances.Stainless steel acid passivation solution can be reused, but it must ensure the appropriate concentration and volume ratio.

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