Shot blasting machine How to complete uniform shot blasting? Many people do not know it. In fact, the cleaning of castings is not only the application of shot blasting. For large parts, drum cleaning is usually required first. Cut the cut of the casting and put it into the drum, and put the part into the drum. Impact, remove most of the surface sand, and then blast it. Next, the shot blasting machine manufacturer will talk about the principle of uniform shot blasting of the shot blasting cleaning machine.

Research shows that, in terms of damage, when the surface of metal material has tensile stress, it is much easier than compressive stress. When the surface layer is under compressive stress, the fatigue life of the material is greatly improved. Therefore, it is usually sprayed on the shaft and other components that are prone to fatigue fracture. The particles form surface compressive stress and improve product life. In addition, metal materials are very sensitive to tension, which is why the tensile strength of materials is far less than the tensile strength. This is also the tensile strength (yield, reverse tension) commonly used for metal materials. Indicates the reason for the material property.

When the shot blasting machine is used to treat the steel shot with oil, it must be air dried, or the treatment effect will be directly affected.

1. Shot blasting cleaning before workpiece coating and workpiece bonding can remove all dirt such as rust scale on the workpiece surface, establish a very important basic pattern (the so-called rough surface) on the workpiece surface, and achieve different degrees of roughness by replacing abrasives with different particle sizes, greatly improving the adhesion between workpiece and coating and coating. Or make the bonding parts more firm and better quality.

2. The wool surface of castings and forgings, and the cleaning and shot blasting of workpieces after heat treatment can clean all dirt (such as oxide skin, oil and other residues) on the surface of castings and forgings and workpieces after heat treatment, polish the surface of workpieces, improve the cleanness of workpieces, make workpieces appear uniform metal color, make the appearance of workpieces more beautiful, and achieve the effect of beautifying decoration.

3. Burr cleaning and surface beautification shot blasting of machined parts can clean small burrs on the surface of the workpiece, make the surface of the workpiece smoother, eliminate the harm of burrs, and improve the grade of the workpiece. Moreover, shot blasting can make a small round corner at the junction of the workpiece surface, making the workpiece look more beautiful and accurate.

4. After sand blasting, uniform and fine concave and convex surfaces (basic drawing) can be generated on the surface of parts to store lubricating oil, improve lubricating conditions, reduce noise and increase the service life of machinery.

5. For some workpieces with special purposes, sandblasting can be used to finish different reflections or matt at will. Such as stainless steel workpieces, wood furniture surface matting, frosted glass surface patterns, fabric surface texturing, etc.

What are the precautions for the maintenance of shot blasting machine?

1. All fixing bolts on the shot blasting equipment are loose, and tighten them immediately after loosening.

2. Check whether the pointer of the direction sleeve is in the correct position.

3. The dust removal pipe leaks, and the filter bag in the dust collector is dusty or damaged.

4. Timely remove the spiral case and filter screen of the separator of the shot blasting machine for debris and other debris.

5. Check the tightness of fixing bolts and flanges of all shot blasting machine motors, reducers, fans, screw conveyors.

6. It is necessary to check whether the electronic control valve is closed after work every day.

7. Check whether the limit switch and proximity switch of the shot blasting machine are normal.

8. Check whether each signal indicator on the console works normally.

9. Check whether the current of shot blasting motor is within the rated range. 10. Clean the dust on the electrical control box in time.

11. Check the barrel seal, working door rubber shield and top seal for wear and no breakdown loss.

12. Remove debris from the backplane grid to ensure the projectile is recycled.

13. Check whether the total amount of particles in the particle bin is sufficient and supplement the insufficient amount.