What is sandblasting and its application

The process of cleaning and coarsening the surface of matrix by the impact of high-speed sand flow.Compressed air is used as power to form a high-speed jet beam,which sprays the material (copper ore sand,quartz sand, diamond sand,iron sand,Hainan sand) onto the surface of the workpiece to be treated at high speed,so that the appearance or shape of the workpiece surface changes.Due to the impact and cutting effect of abrasive on the workpiece surface,the workpiece surface gets a certain degree of cleanliness and different roughness.The mechanical properties of the workpiece surface are improved,so the fatigue resistance of the workpiece is improved, the adhesion between the workpiece and the coating is increased, the durability of the coating is prolonged, and it is also conducive to the leveling and decoration of the coating.

EN10253-2 P265GH 90 degree elbows after sandblasting

Application of sandblasting:

(1)Workpiece coating and sand blasting before bonding can remove all dirt such as rust on the workpiece surface, and establish a very important basic pattern on the workpiece surface (i.e. the so-called wool surface). Moreover, by changing the abrasives of different particle sizes, such as flying abrasive abrasives, the roughness of abrasives can be achieved to varying degrees, and the bonding force between workpiece and coatings and plating materials can be greatly improved. Or make the bonding parts more firm and better quality.

EN10253-2 P265GH sandblasted caps

(2) The cleaning and polishing of casting surface and workpiece after heat treatment and sandblasting can clean up all dirt (such as oxide scale,oil stain and other residues) on the surface of casting and forging and workpiece after heat treatment,and polish the workpiece surface to improve the cleanliness of workpiece,which can make the workpiece show uniform and consistent metallic nature, and make the workpiece appearance more beautiful and beautiful.

(3) Burr cleaning and surface beautification sand blasting of machined parts can clean up micro burrs on the surface of the workpiece,make the surface of the workpiece smoother,eliminate the hazards of burrs and improve the grade of the workpiece.And sand blasting can make very small rounded corners at the junction of the workpiece surface,making the workpiece more beautiful and more precise.

EN10253-2 P265GH sandblasted concentric reducer

(4) Improve the mechanical properties of the parts. After sandblasting,the mechanical parts can produce uniform and fine concave and convex surfaces on the surface of the parts,so that the lubricating oil can be stored,thus improving the lubricating conditions,reducing noise and improving the service life of the machines.

(5) For some special purpose workpieces, sandblasting can achieve different reflections or matte at will.Such as polishing of stainless steel workpiece,plastic,polishing of jade,matting of wood furniture surface,pattern of polished glass surface,and texturing of cloth surface,etc.

Haihao Group produces butt welding pipe fittings,forged pipe fittings and flanges products more than 30 years,we can sandblast for these products,if you have any questions about pipeline products,please email us:sales@haihaogroup.com