Qingdao Henglin Industrial Group Co., Ltd.

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Application scope of shot blasting machine

Company News
Release time:
2019/09/05 15:27

       Almost all steel castings, ash castings, Ma Steel parts, ductile iron parts, etc. are subject to shot blasting. This is not only to remove the oxide scale and sand on the surface of the casting, but also an indispensable preparation process before the quality inspection of the casting. For example, the large gas turbine casing must be subjected to strict shot blasting before non-destructive testing to ensure the flaw detection results. reliability. In the production of general castings, shot blasting is an indispensable process for discovering surface defects such as subcutaneous pores, slag holes, and sand, cold insulation, and peeling. Surface cleaning of non-ferrous metal castings, such as aluminum alloys, copper alloys, etc., in addition to removing oxide scales and surface defects of castings, the main purpose is to remove the burrs of the die-casting parts and obtain the decorative surface quality. , get a comprehensive effect. In the production of metallurgical steel, shot blasting or pickling is a process for mechanically or chemically removing phosphorus skin to ensure high productivity in mass production of steel. In the production of other alloy steel sheets and strips such as silicon steel sheets and stainless steel sheets, annealing or pickling treatment must be performed after annealing in the cold rolling process to ensure the surface roughness and thickness precision of the cold-rolled steel sheets.

       According to the modern metal strength theory, increasing the misalignment density inside the metal is the main direction for improving the strength of the metal. Practice has proved that shot blasting is an effective process to increase the structure of metal dislocations. This is of great significance for workpieces that cannot be further strengthened by phase transformation hardening (such as martensitic quenching) or phase transformation hardening. Aerospace, aerospace industry, automobiles, tractors and other components require lighter weight, but the reliability requirements are getting higher and higher. The important process measures are to use the shot blasting process to improve the strength and fatigue strength of the components.

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