2020-03-24 15:23:55

Is potassium hydroxide related to the oxidation of magnesium alloy

Potassium hydroxide is an alkaline substance that we learned in junior high school, and it has a very good use effect in many fields. When it is used, some people will question whether it is related to micro arc oxidation of magnesium alloy. Today, let's talk about the relationship between the two from this aspect.


When the degree of micro arc oxidation is reduced, micro arc light will be generated on the metal surface, and the reason why micro arc light is generated is directly related to the electrical conductivity of the applied voltage. When the conductivity of electrolyte is higher, the effect is better when transferring or transferring plasma, and in this process, the surface of the film will be more prone to some arc light, so when using, reduce the external increased voltage to reduce the generated micro arc light.


Adding a proper concentration of potassium hydroxide into the silicate solution will show that the thickness of the oxide film changes again. The thickness of the oxide film increases with the increase of the concentration, but the frequency of thickness increase will slowly decrease when the concentration increases to a certain extent, and the thickness has not changed after the concentration gradually increases to a certain extent. So we can see that when the concentration is increased in production, the film is also gradually increasing.


For the first time, we will also find that when the concentration of alkaline substance in silicate solution is low, it can still be oxidized to film normally. So in fact, when alkaline substances are added, they can affect the efficiency of membrane formation.


The above is the relationship between potassium hydroxide and magnesium alloy oxidation. In fact, we can better apply alkaline substances after we have a deeper understanding of this content, and we also need to choose a more appropriate way for production and processing when using various materials.