How to make aluminum chemical polishing?
So, the polishing process such additives are not used in a wide range, but now there is no better substitute additive to produce, so there is still only use this approach to polishing pollutants on aluminum chemical polishing, but then polished, be sure to pay attention to good use ratio in which nitric acid, or is likely to cause corrosion of the aluminum surface.
Thus, in the polishing time, it does not produce environmental pollution by nitrogen oxides longevity of tobacco. However, this additive is only suitable for polishing aluminum or aluminum-magnesium alloy, when use, if it contains other elements, the effect a lot worse.
However, this mixed solution when in use, the required temperature to reach 105 degrees, but at this temperature, it will leading to the inside of the nitrogen pollution of the environment can produce an oxidizing substance. Therefore, the use of a mixed solution of when to add suitable additives, the most commonly used is the acid through S class brightener.
Aluminum tubes used in the selection of the polishing solution when using multiple content accounted for 70% phosphoric acid solution, and most of the time, using a combination of nitric acid as well as phosphoric acid into the mixed solution. Also, this combination solution can vary within the aluminum alloys used within a certain range of dose adjustment.
