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The distance of the blasting gun is one of the factors affecting the results of the blasting surface


The main parameters that affect the blast processing are: abrasive type, abrasive particle size, abrasive concentration, spray distance, spray angle, spray time, compressed air pressure, etc. The three elements to obtain the surface result are: the acceleration of the compressed air on the jet (adjustment of the blast pressure) P type of abrasive (S) the distance (H) and angle (θ) of the blast gun .

· The effect of pressure adjustment on the surface result-after setting S, H, θ, the larger the value of P, the higher the speed of the jet flow, the higher the blasting efficiency, and the rougher the surface of the workpiece, Conversely, the surface is relatively smooth.

· The effect of the change of the distance and angle of the blasting gun on the surface result-After the P and S values are set, this is the key to the manual blasting technology. The distance between the blasting gun and the workpiece is generally 50 ~ 150mm The farther the workpiece, the lower the efficiency of the jet and the smoother the surface of the workpiece. The smaller the angle between the blasting gun and the workpiece, the lower the efficiency of the jet flow and the smoother the surface of the workpiece.

· Effect of abrasive type on surface results-Abrasives are divided into spherical and rhombic types according to the state of the particles. Diamond abrasives (white steel and brown corundum) usually used for blasting are diamond-shaped abrasives. Glass beads are spherical abrasives. After the three values of P, H and θ are set, the surface obtained by blasting the spherical abrasive is smoother, and the surface obtained by the rhombic abrasive is relatively rough, and the same abrasive is divided into thicknesses. The abrasive is divided by the number of screens in China The thickness is generally called the number. The higher the number, the smaller the particle size. After the P, H, and θ values are set, the higher the number of the same abrasive blasting number, the smoother the surface result.

Related blasting equipment includes: Boron carbide nozzle blasting gun blasting pipe
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