Environmentally friendly chemical polishing of aluminum profile
Phosphate sulfuric acid based solution is an environmentally friendly new chemical polishing technology that aims to achieve zero NOx emissions and overcome the quality defects of similar technologies in the past.
The key to the new technology is to add some compounds with special effects to the base liquid to replace nitric acid.
It is necessary to analyze the process of aluminum's three acid chemical polishing first, with a particular focus on studying the role of nitric acid.
The main function of nitric acid in aluminum profile chemical polishing is to suppress pitting corrosion and improve polishing brightness.
Based on the chemical polishing test in pure phosphoric acid sulfuric acid. It is the special substances added to phosphoric acid sulfuric acid should be able to inhibit pitting corrosion, slow down overall corrosion, and must have good leveling and brightening effects.
