definition
The use of electrolytic chemical reaction changes the surface smoothness of parts, stainless steel electrolytic polishing is the workpiece is thrown anode, insoluble metal cathode, the two electrodes simultaneously immersed in the electrolytic cell, through the direct current to produce selective anode dissolution, the workpiece surface gradually Leveling, so as to achieve the effect of increasing the surface brightness of the workpiece.
principle
The principle of electrolytic polishing of stainless steel is generally recognized as the theory of mucous membranes. The theory is mainly that the metal ions separated from the workpiece and the phosphoric acid in the polishing solution form a layer of phosphate film adsorbed on the surface of the workpiece. The mucous membrane is thinner at the protrusion and the recess is thicker, because the current density at the protrusion is high. The solution dissolves quickly, with the mucous membrane flowing, the bump changes, and the rough surface is gradually leveled.
advantage
(1) Consistent internal and external color, long-lasting luster, recesses that cannot be thrown by mechanical polishing can also be leveled.
(2) High production efficiency and low cost.
(3) Increase the corrosion resistance of the workpiece surface, applicable to all stainless steel materials