What is the requirements for coating thickness of aluminum enclosure?

- Sep 29, 2018-

What is the requirements for coating thickness of aluminum enclosure?


Generally speaking, the main factors affecting product performance are materials, process, design, use and so on. 

the aluminum enclosure molding technology is now relatively complete.


However,the forming process for different aluminum enclosure have different effects on the corrosion resistance of the coating,

The ideal way is to adopt the cold extrusion process, and the aluminum enclosure formed by this method is compact,low porosity of coating,

so what is the requirements for coating thickness of extruded aluminum enclosure profiles?

Aluminum enclosure are the main raw materials for machining, and we also use similar items in our daily life.

Let's learn about the requirements for the coating thickness of extruded aluminum enclosure profiles,


When the upper and lower limits of film thickness are specified and the upper and lower limits are small, 

the supplier can not guarantee because of the process limitation; 

when the upper and lower limits are large, 

the first spraying can be guaranteed, and the second spraying may exceed the upper limit of film thickness,

Requirements for minimum film thickness exceeding the thickness required by the public standards will lead to unit price increases, 

which generally increase by about 1.5RMB per micron per square meter of film thickness,

AA25 (or equivalent) is required for anodic oxide film thickness in the project specification. 

In fact, AA15/AA20 is commonly used according to the design requirements, resulting in waste of cost. 

The price of AA20 is at least 40% higher than that of AA15.

AA25 price is at least 150% higher than AA15 level,