How to choose suitable abrasives for sandblasting in Dalian?

The application fields of sandblasting processing in Dalian are very extensive. For example, in the sign making industry, sandblasting can be used to achieve a shiny and smooth surface on metal signs or background plates; In the production of alloy castings, sandblasting can improve the surface roughness of the castings, increase adhesion and friction; In the automotive industry, sandblasting can reduce defects such as sand holes and bubbles on the surface of automotive parts, improve surface quality, and extend service life.

Sandblasting is a process of treating the surface of a workpiece by high-speed spraying of abrasive particles. It has multiple significant characteristics and uses: efficiency: it can treat large areas of workpiece surfaces in a relatively short time. Flexibility: Suitable for workpieces of various shapes and sizes. Adjustable: The ability to adjust the pressure, angle, and abrasive type of sandblasting according to demand to achieve different treatment effects.

How to choose suitable abrasives for sandblasting in Dalian?

Choosing abrasives suitable for sandblasting requires consideration of multiple factors, and the following are some key considerations and corresponding suggestions:

Workpiece material and hardness

If the workpiece material is soft, such as aluminum, copper, etc., softer abrasives such as glass beads, plastic sand, etc. should be selected to avoid excessive wear and damage to the workpiece surface.

For workpieces with high hardness, such as steel, abrasives with high hardness, such as quartz sand, diamond sand, etc., can be selected.

Purpose of sandblasting

If the main purpose is to remove the surface oxide layer, rust or coating, abrasives with strong cutting ability, such as pomegranate sand and steel sand, are usually selected.

To achieve fine surface roughness or surface decoration, finer grained abrasives such as alumina powder can be used.

Surface requirements

For surfaces that require high cleanliness and smoothness, choose abrasives with uniform particle size and regular shape, such as ceramic sand.

If a certain roughness is required on the surface to increase adhesion, angular abrasives such as quartz sand can be selected.

Cost considerations

Some abrasives, such as natural quartz sand, have relatively low prices, but may have issues such as dust pollution.

High performance abrasives such as pomegranate sand and stainless steel sand, although expensive, have a long service life and may not have a high overall cost.

Environmental requirements

Some abrasives, such as pomegranate sand, generate less dust during use, have a smaller impact on the environment and the health of operators, and meet environmental requirements.

Abrasive particle size

Coarse grained abrasives (such as 16-30 mesh) are suitable for rapid removal of large amounts of material and rough surface treatments.

Fine grained abrasives (such as 80-200 mesh) are used to achieve fine surface effects.

For example, if you want to clean and lightly roughen the surface of stainless steel parts, you can choose 80 mesh pomegranate sand; For aluminum alloy workpieces that require removal of thicker coatings, 30 mesh steel grit may be chosen.

Sandblasting is a common surface treatment method that removes impurities, welding slag, oxide scale, coatings, and other substances from the surface of the workpiece by high-speed abrasive spraying, thereby obtaining a smooth and uniform surface quality. In addition to surface treatment, sandblasting is also widely used in the production of signs, carvings, molds, sand tables, alloy castings, and other fields.

The equipment used for sandblasting processing usually includes sandblasting guns, sandblasting tanks, compressed air sources, etc. At the same time, operators need to wear appropriate protective equipment, such as goggles, dust masks, etc., to ensure safety. When choosing sandblasting processing services, factors such as processing quality, price, and delivery time need to be considered. Different sandblasting manufacturers may have differences in technical level, advanced equipment, and service quality.