How to remove rust after Dongguan precision casting becomes rusty

Dongguan precision casting rust is a chemical reaction of every metal product. For example, the stainless steel pots we use in daily life will also rust. Of course, precision casting products are no exception. Rust will inevitably occur during use, This will not only affect the appearance, but also the use. So remove it.

1. Projection rust removal:

The impeller blades of the high-speed rotating granulator are used to rotate the impeller blades of the granulator, and the abrasives are scattered to the surface of the castings. The abrasives fly at high speed, impact and rub the surface of the alloy castings, and remove the rust and oxidized skin on the surface of the precision castings.

This method has high efficiency, good rust removal quality, and can obtain a certain roughness on the surface of alloy cast steel, which is beneficial to coating adhesion. It has low labor intensity and light environment. Manufacturers should give priority to this method.

2. Spray rust removal:

Compressed air separates oil and water, and the abrasive is sprayed from the nozzle at high speed. The pressure of compressed air is generally 4-0.6mpa. Dongguan Precision Casting uses high speed to rub and impact with alloy cast steel parts to remove oxidized skin and rust.

This method does not require a fixed position. It is highly efficient. The spray point is flexible and there are no dead corners. High-quality scale removal makes the surface of the alloy cast steel rough and facilitates the adhesion of the coating film.