Working principle, characteristics and advantages of sand blasting machine

The blasting machine is a machine that uses compressed air as a power to form a high-speed jet beam to spray the spray at a high speed to the surface of the workpiece to be treated to change the mechanical properties of the outer surface of the workpiece surface.

Due to the impact of the abrasive on the surface of the workpiece and the cutting action, the surface of the workpiece is given a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece are improved, thereby improving the fatigue resistance of the workpiece, adding it and coating The adhesion between them extends the durability of the coating film, and also facilitates the leveling and decoration of the coating, removes impurities, mottling and oxide layers on the surface, and at the same time roughens the surface of the medium to cause residual stress on the surface of the substrate. Improve the surface hardness of the substrate.

Unlike other sand treatment equipment, the sand blasting machine is a sand treatment equipment that can use abrasive materials to be sprayed onto the surface of the workpiece by means of compressed air. According to the characteristics of the sand blasting machine, the sand blasting machine is suitable for cleaning the rough surface of forged castings, stamping parts and machined parts, for spraying, pre-treatment steps before plating, and strengthening the surface of polished parts. The sand blasting machine is especially suitable for medium-sized sand blasting machines. Small parts are produced in small batches.
The blasting machine is characterized by an intake pressure, a blasting pressure display, and a pressure reducing valve, which can adjust the blasting pressure as needed. A filter is installed at the inlet of the compressed air to filter out moisture in the compressed air.
The sand blasting machine is equipped with automatic separation and automatic dust removal system. The used sand material is transported from the bottom of the machine to the cyclone separator by negative pressure, and the impurities such as dust, rust and scale generated during the blasting process are good. Separated from the sand. The characteristics of the sand blasting machine enable the sand material that the sand blasting machine continues to use to be stored in the hopper at the lower part of the separator and recycled. Large impurities such as scale are blocked by the net at the lower part of the separator, and the dust is transported to the blasting sand. The machine is treated in a dust box, and dust is collected and clean air is discharged into the atmosphere.

The advantages of sand blasting machine:

1. The metal parts of the blasting equipment are basically not damaged, and the dimensional accuracy will not change;
2. The surface of the part is not contaminated, and the abrasive does not chemically react with the material of the part;
3. Sand blasting equipment can easily handle the difficult parts such as grooves, recesses, etc., and abrasives of various sizes can be used;
4. The treatment cost is greatly reduced, mainly reflected in the improvement of the working efficiency of the blasting equipment, and can meet various surface finishing requirements;
5. Low energy consumption and low cost;
6. Sandblasting equipment does not pollute the environment, eliminating the need for environmental treatment;