QINGDAO ZHILING MACHINERY CO., LTD.
QINGDAO ZHILING MACHINERY CO., LTD.

What Is Sand Blasting Equipment? Functions and Working Principle of Sand Blasting Surface Treatment

Sand blasting, as an efficient method for cleaning the surface of workpieces, can improve the mechanical properties of the surface and enhance the fatigue resistance of the workpieces.

What is Sand Blasting Equipment?

Sand blasting equipment uses compressed air as the power source to form a high-speed jet stream that propels blasting material (such as glass beads, steel shot, steel grit, quartz sand, corundum, iron sand, sea sand) at high speed onto the surface of the workpiece to be treated. This process changes the mechanical properties of the workpiece surface. Due to the impact and cutting action of the abrasive on the workpiece surface, the surface achieves a certain level of cleanliness and different roughness, thereby improving the mechanical properties of the workpiece surface. This enhances the fatigue resistance of the workpiece, increases the adhesion between the workpiece and the coating, extends the durability of the coating, and facilitates the leveling and decoration of the paint. It also removes surface impurities, discoloration, and oxide layers, roughens the surface of the medium, and improves the residual stress and surface hardness of the substrate.


shot blast cleaning machine

Functions of Sand Blasting Equipment

  1. Mold Treatment: Matte surface treatment for molds, graphic manufacturing, and mold cleaning without damaging the mold surface, ensuring mold precision.

  2. Strengthening: Increases surface hardness of metal parts and eliminates stress, such as surface treatment for aircraft blades, springs, machining tools, and weapons.

  3. Refurbishing Old Parts: Cleans and refurbishes all moving parts of automobiles, motorcycles, and electromechanical equipment. It also eliminates fatigue stress and extends service life.

  4. Polishing: Removes surface marks from all metal and non-metal products, providing a matte finish and enhancing the product’s surface quality.

  5. Pre-treatment: Sand blasting treatment before electroplating, painting, and coating processes ensures absolute surface cleanliness and significantly improves the adhesion and corrosion resistance of the coating.

  6. Deburring: Removes micro burrs from machined parts and flash from injection molded parts.

  7. Cleaning: Removes oxide scales, residues, and dirt from metal workpieces such as castings, stamped parts, welded parts, and heat-treated parts. It also cleans non-metal products, removes black spots from ceramic blanks, and restores paint patterns.

  8. Etching and Anti-slip Processing: Etches patterns, text, and anti-slip treatments on metal and non-metal surfaces, such as marble, handles, stamps, and tombstone inscriptions.

  9. Reworking Defective Products: Removes defective coatings, poor surface coloring, and printing from products.


industrial shot blasting machine

Working Principle of Sand Blasting Equipment

A sand blasting machine is a specialized machine used for surface treatment. It uses high-speed airflow and abrasives to completely remove corrosion, deposits, oxide scales, dust, and other substances from the target surface. This achieves purposes such as warning, decoration, corrosion prevention, improving surface coverage, and increasing surface roughness.

Sand blasting machines are widely used in various fields such as manufacturing, repair, construction, and coating industries. For example, in the manufacturing industry, sand blasting machines are used to remove oxidation, rust, and attachments from various product surfaces. They are also used to treat surfaces before assembly and bonding to improve adhesion and surface roughness. In construction, sand blasting machines are used to remove surface defects such as scratches, oil leaks, and old coatings, thereby improving surface flatness and adhesion. In the coating industry, sand blasting machines are used for surface grinding to facilitate coating application.

In summary, sand blasting machines make significant contributions to the improvement and promotion of industrial manufacturing and surface treatment processes. They play a crucial role in achieving high-quality surface processing effects.