What is the working principle of sandblasting machine?

Sandblasting machine is a kind of surface treatment equipment, which ejects sand or other granular substances at high speed and impacts on the surface of the treated object to achieve the purpose of cleaning, removing dirt and improving surface quality.

The working principle of sandblasting machine mainly includes the following steps:

1. sand acceleration: the sand blasting machine sends sand or other particulate matter into the sand blasting gun through compressed air or pressure pump. In the sand blasting gun, sand particles will be impacted by high-speed airflow, thus accelerating to a higher speed.

2. Sandblasting: The accelerated sand is sprayed out through the sandblasting nozzle to form a high-speed jet. By adjusting the pressure and nozzle angle of sandblasting machine, the speed and direction of jet can be controlled.

3. Impact: The sand particles in the high-speed jet impact the surface of the treated object, resulting in impact force. This impact force can remove the dirt, oxide layer and coating on the surface and improve the roughness of the surface.

4. Sand recovery: In the process of sand blasting, the sprayed sand will be impacted into the air together with the dirt on the surface of the treated object. In order to avoid environmental pollution and waste of resources, sandblasting machines are usually equipped with a sand recovery system to recover and reuse the sprayed sand.

Generally speaking, the working principle of sandblasting machine is to use the impact force of sand particles in high-speed jet to clean and improve the surface of the treated object. This surface treatment method is widely used in metal processing, automobile maintenance, ship repair, architectural decoration and other fields.