The galvanizing pickling time varies depending on the size of the workpiece.
Author: Marisa
The galvanizing pickling time varies depending on the size of the workpiece. For small workpieces, the pickling time is usually 8 to 10 minutes; for large workpieces, the pickling time is 25 minutes. However, the pickling time must be strictly controlled and should be completed within 30 minutes as much as possible to prevent problems caused by excessive pickling. At the same time, in order to prevent rust problems, some corrosion inhibitors can be added to the hydrochloric acid solution.
Please note that the pickling time in actual operation may also be affected by other factors, such as the concentration and temperature of the pickling solution, the material and surface state of the workpiece, etc. Therefore, in actual operation, it is necessary to flexibly adjust the pickling time according to the specific situation to achieve the best pickling effect. At the same time, it is necessary to comply with the relevant safety operating procedures to ensure personnel safety and environmental protection.
In addition, in order to ensure the quality of the workpiece after pickling, it is also necessary to pay attention to the cleaning and passivation treatment after pickling. Cleaning can remove the pickling solution residue on the surface of the workpiece to prevent it from affecting subsequent processing; passivation can form a protective film on the surface of the workpiece to improve the corrosion resistance of the workpiece. These steps also require strict control of time and conditions to ensure the treatment effect.