The way in which stainless steel electrolytic polishing slurry discharges metal surfaces
Stainless steel electropolishing is a commonly used metal surface treatment method, which achieves the brightness and smoothness of the metal surface through the discharge reaction between the electrolytic polishing liquid and the metal surface. This article will detail the way stainless steel electropolishing slurry discharges metal surfaces.
1. The composition of electrolytic polishing liquid.
Electropolishing slurries are mainly composed of acidic or alkaline solutions that contain a variety of metal ions and oxidizing agents. These ingredients play different roles in the electropolishing process.
Second, the discharge mode of the metal surface.
1.DC discharge.
During the DC discharge process, the cations in the electrolytic polishing slurry move towards the metal surface under the action of the DC electric field, and the redox reaction with the metal surface occurs, resulting in a bright and smooth surface. This discharge method is suitable for various metal materials, such as stainless steel, copper, aluminum, etc.
2.Pulse discharge.
Pulse discharge is an intermittent discharge method, through the action of pulsed electric field, the cation in the electrolytic polishing slurry produces an instantaneous discharge reaction on the metal surface. This discharge method can effectively control the roughness of the metal surface and improve the brightness and smoothness of the surface.
3. Characteristics of electrolytic polishing slurry.
1.Concentration: The concentration of electropolishing slurry directly affects the rate and degree of the discharge reaction, so it is necessary to select the appropriate concentration according to the specific metal material and processing requirements.
2.Temperature: The temperature of the electropolishing slurry also affects the rate and extent of the discharge reaction, so it is necessary to control the appropriate temperature range.
3.Current density: Current density is an important factor affecting the discharge reaction, and it is necessary to select the appropriate current density according to the specific processing requirements.
IV. Conclusions. The way stainless steel electropolishing slurry discharges the metal surface is one of the key factors to achieve the brightness and smoothness of the metal surface. By choosing the appropriate electrolytic polishing liquid and discharge method, the roughness, brightness and smoothness of the metal surface can be effectively controlled, and the quality and aesthetics of the product can be improved. At the same time, it is also necessary to pay attention to the control of appropriate temperature and current density and other factors in the electrolytic polishing process to ensure the stability and safety of the processing process.