6063 aluminum plate in the process of production and processing may occur silicon corrosion, the following 6063 aluminum plate manufacturers talk about 6063 aluminum plate silicon corrosion causes and treatment methods.
The corrosion behavior of silicon on 6063 aluminum plate profile can be completely prevented and controlled, as long as the raw material purchase and alloy composition are effectively controlled, the ratio of magnesium to silicon is in the range of 1.3 ~ 1.7, and the process parameters are strictly controlled to avoid segregation and dissociation of silicon, so that silicon and magnesium form beneficial Mg2Si strengthening phase as far as possible.
If we find that students have this phenomenon of silicon corrosion point, in the 6063 aluminum plate surface information processing should have special attention, in the degreasing and oil removal process, try to choose to use weak alkaline tank liquid, if there are no conditions and not allowed,Should also be in the acid in addition to the oil soaking time can be shortened as far as possible (qualified aluminum alloy profiles in the acid degreasing solution put 20 ~ 30min no problem, and the quality of the profile can only be placed on their own 1 ~ 3min), and for the later wash pH value is higher than some (pH > 4, control Cl- content),In the development process of alkali corrosion should be able to extend the corrosion time of equipment as far as possible, in the neutralization of the light to use nitric acid light liquid, in the anodic oxidation of sulfuric acid should be as soon as possible electrification oxidation technology treatment, so that the dark gray system corrosion point caused by silicon does not exist obvious, can meet the requirements of enterprise use management.
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