Automatic sandblasting machine is suitable for surface treatment of parts of electronic products?

Electronic product parts suitable for automatic sandblasting machine

Automatic sandblasting machine relies on abrasive jet to deburr, matte finish, roughen base surface and remove oxide layer, which is widely used in 3C consumer electronics, new energy electronics, industrial control electronics and communication equipment parts, with different processing emphases:

1. Electronic shell and structural shell

-Aluminum alloy notebook case, flat case, mobile phone middle frame and protective case.

-Magnesium alloy and zinc alloy die-casting electronic product housings

-Industrial computer shell, stainless steel electronic case, shielding box cavity

Function: to remove CNC knife lines and die-casting burrs, make matte matte appearance, and do pretreatment for anodizing and spraying.

2. Heat dissipation parts

-Aluminum radiator, radiator module, radiator shell and temperature equalizing plate shell.

-Radiator die casting

Function: remove surface oxide scale, roughen surface, improve coating adhesion and remove machining burr.

3. Connector and hardware precision bracket

-Copper, stainless steel connector housing, metal connector housing

-Internal hardware support, fixed shrapnel and shielding shrapnel

> Function: Remove tiny burr and corner flash; Roughening the surface of the part to be bonded; * * Thin shrapnel should be strictly controlled by sandblasting pressure to avoid deformation * *.

4. Camera and module parts

-Camera metal decorative ring and lens metal base

-Sensor metal base

> function: obtain uniform matte effect and reduce reflective glare; To remove machining scratches, threaded holes and small holes must be shielded and protected.

5. Batteries and New Energy Electronic Accessories

-Metal shell of lithium battery, metal batten of module, battery structural parts.

-BMS protective metal shell

Function: remove the stamping oxide layer and burr, as the pretreatment base of spraying and insulating coating.

6. Metal components and shielding cover around PCB

-Metal shield, shield bracket

Function: remove stamping burr and surface oxidation; Soft abrasives are preferred for the thin shield to prevent deformation.

7. Keys and decorative hardware

-Metal decorative pieces, decorative nameplates and metal decorative strips for switch buttons.

Function: to realize the fine sand surface texture, instead of some chemical flower biting processes.

Electronic parts that are not suitable/need careful processing.

1. Finished products with electroplating, gold plating and silver plating have been completed: sandblasting will directly damage the coating;

2. Fine precision thread and micro through hole: it must be covered by work, otherwise it will block the hole and damage the tooth pattern;

3. Very thin wall parts: warping deformation is easy to occur when the pressure is too high;

4. Soft plastic parts: ordinary sand blasting is easy to damage the base material, and only some hard engineering plastics can be tested and processed with very soft abrasive.

Common abrasive matching reference

-Pursuing a delicate matte appearance: glass beads

-Strong deoxidation and deburring ability: white corundum.

-Stainless steel parts shall be free from iron pollution, and brown corundum and iron ore are prohibited.