Electrolytic pickling in leaching to completely descaling of used only by the acid an accelerated descaling method, and the 30304AJR bearing acid leaching method used in combination, can improve the pickling efficiency. The characteristic of this method is: the electrochemical effect, uniform surface gloss good.
Usually used in electrolytic acid washing is nitrate and sulfate electrolytic electrolytic two methods, using nitric acid electrolysis using the most. Nitric acid leaching solution when used alone as no descaling effect, but through the electrode (Gui Zhutie) produced when current is flowing, the electrochemical action of the oxide film can be ionized, pickling, however because of 30304AJR bearing lower corrosion resistance, scale removal capacity of the smaller, generally not used alone.
Sulfate scale is worse than electrolysis. Moreover this method except the electrolytic device, but also needs to have the device for recovering waste acid, sulfur oxides in exhaust gas, therefore, the higher cost of 30304AJR bearing equipment.
Strip pickling is continuous, is of the pickling method includes pretreatment, taking different ways to combine the use of. Combination according to the decision of steel strip surface condition, and the condition of equipment.