Application Range of Shot Blasting Machine

Shot blasting machine is firstly used to remove sand and oxide scales on the surface of cast steel and iron castings in foundry industry. Almost all steel castings, gray castings, malleable castings, ductile iron castings and so on need shot blasting treatment. This is not only for the removal of oxide scales and adhering sand on the surface of castings, but also it is an indispensable preparation process before the quality inspection of castings.

In general casting production, shot blasting cleaning is an indispensable means to find surface defects such as subcutaneous blowhole, slag hole, sand sticking, cold insulation, peeling and so on. Surface cleaning of non-ferrous metal castings, such as aluminium alloy, copper alloy, etc. In addition to removing oxide scales and finding surface defects of castings, the main purpose is to remove burrs of die castings by shot blasting and obtain surface quality with decorative significance, so as to achieve comprehensive effect.

In metallurgical iron and steel production, shot peening or pickling is a combined mechanical or chemical removal process to ensure high productivity in mass production of iron and steel. In the production of other alloy steel sheets and strips such as silicon steel sheets and stainless steel sheets, shot blasting or pickling must be carried out after annealing in the cold rolling process to ensure the surface roughness and thickness accuracy of cold rolled steel sheets.

According to the modern strength theory of metals, increasing the dislocation density in metals is the main direction to improve the strength of metals. Practice has proved that shot blasting is an effective method to increase the dislocation structure of metals. Aircraft, aerospace industry, automobile, tractor and other components require lightweight, but the reliability requirements are getting higher and higher. The important technological measures are to use shot blasting technology to improve the strength and fatigue strength of components.

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