Abrasive sandblasting technology is an advanced technology that uses high-speed jet abrasives to grind the surface of objects and remove pollutants. By spraying abrasives onto the surface of objects in a high-speed airflow, abrasive blasting technology can achieve efficient and uniform surface treatment, and is widely used in the processing and treatment of different materials, including metals, plastics, ceramics, etc.
Comparing Dry Sandblasting and Wet Sandblasting
Item | Dry Sandblasting | Wet Sandblasting |
Feature | Fast speed and obvious effect. | Reduces surface temperature, suitable for applications that are temperature sensitive to the surface of the object. |
Cost | lower cost | higher cost |
Difficulty of Operation | simpler | more complex |
Environmental pollution | May generate dust and noise | less dust generation |
Surface Effect | Improves surface roughness, gloss and adhesion. | Dust removal, stain removal, surface modification. |
Applicable Material | metal, plastic, etc. | Stone, wood, ceramics, etc. |
Application Scenario | Metal processing, auto repair, ship repair, etc. | Stone carving, wood treatment, ceramic processing, etc. |
Security Requirements | Requires special breathing equipment, eye protection, etc. | Treatment of water and blasting mixture. |
Applications in different industries
Industry | Feature | Application |
Automotive industry | Remove rust, old paint and coatings from the surface of the car, providing an effective method for vehicle restoration and maintenance. | Repair vehicle bodies, sheet metal components, wheels and other metal parts. |
Metal processing | Surface treatment and pretreatment during processing. | Grit blasting can be used to remove rust, oxidation and dirt from surfaces prior to metal plating, coating and painting. |
Construction Industry | Smooths and roughens surfaces for better adhesion and appearance. | Concrete, stone, brick and wood etc. |
Manufacturing | Surface treatment, rust removal, deburring and improving the surface smoothness and texture of products. | In the manufacture of auto parts, aviation parts, mechanical parts and electronic components, etc. |
Effect of different abrasive materials on sandblasting
Material Type | Feature | Apply to |
Metal | 1. High hardness and wear resistance. 2. Can quickly remove the oxide layer, dirt, coating, etc. on the metal surface. 3. Can form a certain surface roughness on the surface. | Steel balls, aluminum balls, etc. |
Oxide | 1. High hardness and wear resistance. 2. Produce a more uniform sandblasting effect. 3. Surface roughness can be controlled. | Non-metallic materials such as ceramics, glass, etc. |
Number of Lipids | 1. Has low hardness and strong toughness. 2. Produce a smoother sandblasting effect on the surface of the object. 3. It is not easy to cause damage to the surface of the object. | Gentle on surface requirements. |
Glass | 1. Has low hardness and strong toughness. 2. Produce a smoother sandblasting effect. 3. It is not easy to cause damage to the surface of the object. | Requires high gloss and smoothness. |
Effect of Different Particle Sizes on Sandblasting
Influence | larger particles | smaller particles |
Surface Treatment Effect | 1. The sandblasting effect is faster.2. The surface treatment effect may be rough. | 1. Sandblasting effect is slow.2. The finer the sandblasting effect. |
Depth | Produces a darker sandblasting effect. | Produces a lighter sandblasting effect. |
Material Removal Rate | Remove material faster. | Longer blasting times are required to achieve the same removal rate. |
Blasting Uniformity | Will have an uneven effect. | Ability to more evenly blast the entire surface. |
Advantages of Sandblasting
1. Fast and effective
It can quickly remove stains, old paint, rust, etc. on the surface of objects, and achieve the ideal surface effect in a short time.
2. Multi-material application
Applied to the surface treatment of various materials, including metal, plastic, wood, stone, etc., with strong adaptability.
3. Flexible control
Flexible control of the treatment effect can be achieved by adjusting parameters such as sandblasting pressure, abrasive selection, sandblasting distance and time, and adapting to different needs and materials.
4. Good surface effect
It can form uniform wear on the surface of the object, improve the surface smoothness and texture, and achieve the ideal surface effect.
5. No pollution
No chemical agents and solvents are used in the process, no pollutants and harmful gasses are produced, and it is environmentally friendly.
Disadvantages of Sandblasting
1. Noise and dust
The process will generate noise and a large amount of dust, which may cause pollution and health risks to the operator and the environment.
2. Surface damage
It may cause mechanical damage to the surface of the object, such as scratches, deformation, etc., and it is necessary to control the sandblasting parameters to avoid damage.
3. Some materials are not applicable
Certain materials, such as brittle materials such as glass and ceramics, may not be suitable for blasting and are prone to breakage or particle residue.
4. Health and Safety Risks
Dust generated during the process may cause damage to the operator’s respiratory system and requires appropriate protective measures.
5. Higher cost
The cost of equipment and abrasives is relatively high, and a certain amount of equipment and abrasives needs to be invested.
6. Difficulty in operation
Depending on the material and finish, different abrasive selections and adjustments may be required.
Conclusion
Sand blasting is a common surface treatment technique with a wide range of applications in many different fields. From metal processing, car repair, ship repair to stone carving, furniture renovation, etc., sandblasting can effectively remove surface dirt, oxide layer, coating, etc., and improve the surface roughness, gloss and adhesion of objects. However, sandblasting also has some limitations, such as possible adverse effects such as dust, noise and vibration, and may pose potential risks to the environment and health. Therefore, when performing sandblasting operations, the corresponding operating procedures and safety measures should be followed to ensure the safety of the operator and the environment. With the continuous development and improvement of technology, sandblasting technology may continue to evolve in the future to better meet the needs of different industries for surface treatment.