What are the different points of the drum type shot blasting machine and sand blasting?

In the field of drum type shot blasting machine equipment, the most important ones are shot blasting and sand blasting. Shot blasting mainly refers to shot blasting machine, while sand blasting mainly refers to sand blasting equipment. The following will introduce you to the same difference between shot blasting and sand blasting.

Shot blasting is the name of a mechanical surface treatment process. Its principle is that the motor drives the impeller body to rotate. By the action of centrifugal force, a certain diameter of the projectile is thrown to the surface of the workpiece, so that the surface of the workpiece reaches a certain roughness. Improve the service life of the workpiece.

Sandblasting (sanding) is a kind of work of using compressed air as the power to push the abrasive to the surface of the workpiece. Specifically, it uses compressed air, high pressure water, steam, etc. to drive the abrasive flow to clean, strengthen, cut and abrade the surface of the workpiece. Sandblasting is common in the process of changing its shape or state, but this process is quite slow and not easily noticeable.

The purpose of shot blasting and sand blasting of the workpiece is to prepare for the next order, not only to ensure the roughness requirements of the next process, but also to ensure that the workpiece is as uniform as possible in the surface treatment, and the shot peening has a strengthening effect on the workpiece, and its effect More obvious, relatively speaking, sandblasting is not obvious. Generally, shot peening is a small steel ball, and sand blasting is quartz sand. Sandblasting is mainly manual operation, and shot blasting is more automatic and semi-automatic; spray is based on compressed air as the power to spray sand or pellets onto the surface of the material to achieve clearance and certain roughness. The throwing is a method of centrifugal force generated when the pellet is rotated at a high speed, impacting the surface of the material to achieve removal and a certain roughness; whether it is shot blasting or sand blasting, the workpiece can be cleaned and decontaminated.