Aluminum alloy sand blasting technology
The blasting treatment uses compressed air as the power to form a high-speed jet beam, and the abrasive (steel sand, brown fused alumina, glass beads, silicon carbide, etc.) is sprayed at high speed to the surface of the workpiece to be treated, so that the appearance of the outer surface of the workpiece changes, due to the sand material. The impact and cutting action on the surface of the workpiece gives the workpiece surface a certain degree of cleanliness and different roughness, which improves the mechanical properties of the workpiece surface, thus improving the fatigue resistance of the workpiece and increasing the relationship between it and the coating. Adhesion enhances the durability of the film and also facilitates the leveling and decoration of the paint.

Sand blasting uses compressed air as the power to form a high-speed jet beam, which sprays the abrasive at a high speed to the surface of the workpiece to be treated, so that the appearance of the outer surface of the workpiece changes physically to meet the quality requirements.

Sand blasting machine scope:

1. Surface cleaning of metal workpieces and non-metal workpieces, cleaning of scales, residual salts, residual oil, etc. after heat treatment;

2. Clean the oxide scale and molding sand of black (with) color castings;

3. Clean up the oxide scale and molding sand of precision castings without margin;

4. Cleaning the residues, micro-burrs, etc. of the machined parts;

5. Clean the oxide scale and welding slag of the welded parts;

6. Clean the oxide scale and rust layer of cold and hot-rolled steel sheets (section steel);

7. Cleaning out mold release agents, deposits, etc. of various mold cavities;

8. Cleaning the sintered residue on the surface of the ceramic component;

9. Clean the flash of plastic molded parts;

10. Clean up the radioactive elements on the surface of the object;

11. Clean up surface residues on bridges, hydropower station gates, ships and buildings;

12. Clean up the rubber adhesion layer of the airport runway;

13. Clean up the rust skin and old paint skin on the car and train compartments;

14. Clean all kinds of pipes and containers;

15. Clean up the oil, attachments, etc. of the old parts;

16. Clean up the residual paint, rust layer and attachments of the container;

17. Clean the wrong sintered layer on the porcelain;

18. Clean the surface of the workpiece such as scratches on the decorative surface;

19. Clean the surface of all kinds of workpieces, produce appropriate roughness and rough surface painting, before baking; before spraying; before metal spraying; before galvanizing, chromium, nickel; blasting before oxidation treatment;

20. Change the physical and mechanical properties of the workpiece before flaw detection to improve or reduce the surface roughness;

21, the surface tension is the compressive stress;

22, improve the lubrication state of the surface;

23. Reduce the motion noise of the even parts;

24, improve the friction coefficient of the surface of the workpiece surface of the finishing of the metal finishing surface polishing;

25, obtaining a matt or diffuse surface;

26, the polishing of parchment and other works of art on the surface of wood products to clean and preserve the surface of cleaning brushes, contactors and wiring;

27. Improve conductivity and compare with other pre-treatment processes (pickling, tool cleaning).

Characteristics of sand blasting:

1) Sandblasting is the most thorough, versatile, fastest and most efficient cleaning method.

2) Sandblasting can be arbitrarily chosen between different roughnesses, but other processes can't achieve this. Manual sanding can produce rough surface but the speed is too slow. Chemical solvent cleaning will clean the surface too smooth and not conducive to coating. Bonding.

The role of sand blasting:

Metal workpiece, non-metallic workpiece surface cleaning, surface strengthening, surface beautification;

1. Surface pretreatment: electroplating, painting, Teflon, PU, rubber and plastic coating, metal spray welding, titanium plating, etc., and increase the adhesion of the surface;

2. Surface beautification processing: decorative processing of various metal products and matting and soft matte treatment of electroplating products and surface atomization treatment of non-metal products such as acrylic, Boli, crystal glass;

3. Surface cleaning: metal oxide layer or black skin after heat treatment, surface pores, metal or non-metal surface rust removal, ceramic surface black and colored point removal or painting regeneration, rubber mold and gravity die casting mold oxide, residue or Removal of the release agent;

4. Surface hair removal processing: removal of the hair of plastics, bakelite products, zinc-aluminum die-casting products, etc. and surface finishing of electronic or other parts;

5. Processing of electronic parts: surface impurity removal after 矽 chip diffusion, sputum chip blasting into small round grain etch processing, electronic parts packaging industry overflow burr blasting, electronic parts finished surface printing removal, ceramic electric heating material cleaning ;

6. Surface etching processing: surface modification etching treatment of precious metal ornaments, gemstones, glass, stone, stone seals, ceramics, wood, etc.;

7. Workpiece stress relief processing: parts cleaning and stress relief of aerospace industrial parts or renovation of national defense weapons and extinction and rust removal;

8. Mold processing: mold surface pear processing (sand blasting) mold biting and matte treatment, increase the adhesion of mold coated PU, shoe mold, conductive rubber mold, tire mold and electronic product mold cleaning and matte treatment.

专栏:Industry information
作者: 佚名
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