Wuxi IDEAL Machinery Manufacturing Co., Ltd talk about the application overview of shot blasting machine today.

1. Appearance finishing

The shot blasting machine is first used to remove the sand and oxide scale on the surface of cast steel and iron castings in the casting industry.

Almost all steel castings, malleable iron castings, gray castings, ductile iron castings, etc. shall be shot blasted. This is not only to remove the scale and sand sticking on the surface of the casting, but also an indispensable preparation process before the quality inspection of the casting. For example, it was necessary to carry out strict shot blasting for the NDT of the large gas turbine casing to ensure the reliability of the flaw detection results. In general casting production, shot blasting is an essential process to find the defects of casting surface such as subcutaneous pores, slag holes, cold shuts, sand sticking, peeling, etc. The surface finishing of non-ferrous metal castings, such as copper alloy and aluminum alloy, in addition to removing the oxide scale and finding the surface defects of the castings, the main purpose is to remove the burrs of the die castings by shot blasting and obtain the appearance quality with decorative significance, and achieve the inductive effect. In metallurgical steel production, shot blasting or acid pickling is a process method to remove phosphorus scale by mechanical or chemical combination 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, it is necessary to conduct shot blasting or acid pickling after annealing in the cold rolling process to ensure the surface roughness and thickness accuracy of the cold rolled steel sheet.

2. Workpiece strengthening

According to the modern metal strength theory, increasing the dislocation density inside the metal is the main direction to improve the metal strength. This is of great significance for some metal parts that require further strengthening on the basis of transformation hardening or transformation hardening. Aerospace, car, aerospace industry, tractor and other components require lightweight, but the reliability requirements are higher and higher. The important process method is to use shot blasting technology to improve the strength and fatigue strength of components.

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