The main points of the sandblasting process of aluminum alloy enclosure.

At present, my country uses more and more aluminum alloy materials in existing products. Because aluminum alloy materials can better reflect product quality, aluminum alloy's easy processing, good visual effects, and rich surface treatment methods are well received. So what are the main points of the sandblasting process of the aluminum alloy enclosure?

First Point: Sand

Sandblasting is the process of roughening the surface of the aluminum alloy enclosure through the impact of high-speed sand flow. The type of sand used is generally 80#—320#, the larger the value, the smaller the sand. The roughness of the sand on the surface of the aluminum alloy enclosure is determined by the type of sand and the size of the blasting pressure. Under the same pressure, the greater the value of the sand, the finer the surface; and the greater the pressure, the coarser the surface when the sand type is the same. .

Second Point: Cleaning before Sandblasting

The surface of the aluminum alloy die casting shell should be cleaned before sandblasting. The cleaning process is to remove the surface oil and dirt with sulfuric acid, and then neutralize it with alkali after pickling.

Third Point: Dry & Checking

After pickling, dry or dry the aluminum alloy enclosure die casting to check the surface, mainly to check whether it is cleaned, whether there is watermark, whether there is yellowing, etc.

Forth Point: The types of Sandblasting

Sandblasting is divided into manual sandblasting and automatic sandblasting. Manual blasting efficiency is relatively slow, and sometimes the blasting is uneven; automatic blasting efficiency is high, and the surface thickness is uniform.


A series of exterior surface treatments are required to make an exquisite appearance of aluminum alloy enclosures. Sandblasting is more common in the processing of aluminum alloy enclosures, and the effect after treatment is also deeply loved by consumers.