KM0203 stainless steel pickling bright liquid is a multifunctional acid agent based on inorganic acid system, usually acts on the surface of stainless steel to remove slight oxides, water rust and the dirt produced in the process of mechanical processing, this product and the general pickling liquid on the market the biggest difference lies in, The workpiece treated with this product can not only remove the oxide scale and dirt attached to the workpiece surface, but also improve the gloss of the workpiece. The general acid cleaning solution will be treated after the workpiece surface into a very dumb silvery white gloss. Because this product from the performance is very similar to chemical polishing, so in the actual workpiece, often many customers will be very concerned about the processing life of this product. In order to obtain scientific and relatively accurate data, we have arranged a large number of stainless steel plate samples for ultimate pickling experiments and obtained reference data.
First, test supplies: SUS304 stainless steel rectangular piece, 2 beakers 350ml, KM0203
Two, the sample process: respectively in accordance with the pickling — water – drying process continuous processing of the workpiece, to the solution no matter how to adjust the final can not deal with the oxide attached to the surface of the workpiece, that is, the solution failure.
When the pickling time of the solution needed to reach about 20 minutes, we detected the acidity index of the solution and found that the acidity value of 3.5pt was slightly lower than the process range. Therefore, according to the requirements of maintenance, the acidity of the solution was restored to the normal index after adding about 2% pickling promoter
When the pickling time reached about 22 minutes, we adjusted the acidity to the normal range according to the method of acidity adjustment again, and then continued to acid about 2100 square centimeters of surface area, no matter how to add accelerant, pickling time was more than 30 minutes, acidity detection time was 1.2pt, we considered the solution failure.
Iii. Summary:
1 Through this test, we have processed a total surface area of about 0.8 square meters, and it can be known from the data calculation that the treatment life of the solution is about 8 square meters /Kg
2, in the treatment of about 4 square meters, the acidity value of the potion will be slightly lower than the index recommended timely adjustment.
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