Aluminum alloy die-casting parts are prone to peeling during shot blasting, especially on large-sized flat or curved surfaces. The peeling is mainly caused by the process of die-casting. Garnet sand is often chosen for aluminum alloy sandblasting because it has many advantages. It is a non-metallic abrasive and has a particularly good sandblasting effect.
Garnet sandblasting has a better surface treatment effect and can clean rust, soluble salt and other substances deeply into the uneven holes and crevices. Garnet sand can be reused repeatedly and even its cutting ability will not be reduced after multiple uses. Therefore, it is a natural and effective sandblasting material for cleaning.
Garnet sand has small settling velocity during sandblasting, and it has good toughness and high specific gravity. Its fast settling speed can reduce dust emissions to a great extent, thereby greatly reducing the threats generated during operation, ensuring the safety and visibility of operators.
When exposed to the air for a long time, workpieces will be affected by moisture, oxidation, corrosion and other factors, resulting in rust and oxidation layer. This greatly shortens the service life of the workpiece, so regular cleaning is necessary. Currently, the most effective method is to use garnet material for blasting abrasive to sandblast the surface of the workpiece, which is the fastest and most effective method.
Garnet sandblasting mainly uses compressed air as power to form a high-speed jet, which can eject garnet abrasives at high speed to the surface of the processed workpiece, thus providing a quick impact and cutting on the surface of the workpiece, making the surface of the workpiece obtain a certain roughness and cleanliness. The popularity of bulk garnet abrasive sand in sandblasting abrasives on the market mainly depends on its excellent characteristics. Garnet sand presents a dodecahedron and icosahedron polyhedral structure, and it has the characteristics of high hardness, good toughness and high specific gravity. When used in sandblasting, it can quickly cut and grind the object, clean it thoroughly into the grooves and holes, and make the surface of the workpiece shiny after sandblasting.
As a common means of transportation in our lives, automobiles also use garnet sandblasting for sandblasting, rust removal and grinding of car bodies. Car bodies are exposed to the air for a long time, especially those that are not coated. They are prone to produce dirt such as oxidation and rust on the surface, so it is generally necessary to carry out sandblasting rust removal treatment before coating.
Abrasivo garnet can be used not only for processing standard natural stone slabs but also for processing irregular stone materials such as steps, railing columns, and corners. Like other processing methods, stone sandblasting can be performed on a small area or processed on a large-scale.
Garnet sandblasting can not only be used for surface processing of stone materials but also for repairing stone materials. When some installed stone materials appear to be corrupted or contaminated, we can use surface sandblasting to process them.