Application range of shot blast machine

Surface cleaning

shot blast machine is firstly applied to the removal of sand and oxide skin on the surface of cast steel and cast iron.

Almost all steel castings, gray castings, malleable steel parts, ductile iron parts, etc. should be shot blasting treatment. This is not only to remove the oxide skin and sand on the surface of the casting, but also an indispensable preparation process before the casting quality inspection. For example, strict shot peening must be carried out before the non-destructive inspection of the large gas turbine housing to ensure the reliability of the inspection results. In general casting production, shot peening cleaning is an essential technological means to find surface defects such as subcutaneous pores, slag holes, sticky sand, cold insulation, peeling, etc. The surface cleaning of non-ferrous metal castings, such as aluminum alloy, copper alloy, etc., in addition to removing oxide skin and discovering surface defects of castings, the main purpose is to remove burr of die casting and obtain surface quality with decoration significance, and obtain comprehensive effect. In metallurgical iron and steel production, shot peening or pickling is a mechanical or chemical process to remove phosphorus peel to ensure high productivity in mass production of steel. In the production of silicon steel sheet, stainless steel sheet and other alloy steel plates and strips, shot blasting or pickling must be carried out after annealing in the process of cold rolling to ensure the surface roughness and thickness accuracy of cold rolled steel plates.

Job strengthening

According to the modern theory of metal strength, increasing the dislocation density inside the metal is the main direction to improve the strength of the metal. It is proved that shot blasting is an effective method to increase metal dislocation structure. The shot blast machine does not harden some metals through phase transitions (e.g., martensite.

Quenching, etc.) or the realization of phase change hardening based on the requirements of further strengthening of the workpiece, more has a very important significance. Aviation, aerospace industry, automobile, tractor and other parts require light quality, but the reliability requirements are higher and higher, its important process measure is to use jetting.

The strength and fatigue strength of components are improved by shot technology.