Know the manufacturer of aluminum casting
s should all know, because of factors such as casting process or material, made of aluminum castings surface can be rough, to use the standard, it needs to improve surface quality of aluminum castings, but at the time of the processing, there are many aspects need to pay attention to in the middle.
Because there is impurity in liquid aluminum, create many compounds, the organization of liquid metal loose can also cause the composition segregation phenomenon such as uneven, after casting without the oxide film formed on cooling, the surface of aluminum castings would seem to be very rough.
For aluminum casting rough surface, usually can adopt the method of alkali treatment to improve.
But for alkali corrosion time also need to pay attention to, the control of alkali corrosion time is too long or too short, can not work very well aluminum castings.
So, Joe will often go after casting in alkali corrosion processing first, so it can improve the quality of castings, prevent castings by alkali corrosion from all kinds of problems.
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