The difference between the descaling machine and the shot blasting machine
发布时间：
2024-07-22
Litai-Forge information: When we talk about the equipment how to remove the oxide scale ,we will mention whether if use of descaling machine so can not need shot blasting, today we will give you a specific analysis of the difference between the descaling machine and the shot blasting machine.
The descaling machine is used in hot forging, the principle of high pressure water descaling is used, the steel is oxidized at high temperature, and a layer of dense oxide sheet is formed on its surface. If this layer of oxide can not be removed before forging, they will be pressed into the strip surface during forging, affecting its surface quality. Residual iron oxide will also accelerate the wear of the muld and reduce the service life of the muld. If the strip needs pickling, the residual oxide sheet will increase the difficulty of pickling and increase the acid consumption. Therefore, the surface of the billet must be removed before forging. 
Therefore, it is recommended to use it before the bar material is heated out of forging, or if there is a blank, it is used after the blank, and conditions can be added in these two links, and the quality of the product will be better improved. The oxidized skin removed here is a furnace oxidized skin, which is very damaging to the product and has great damage to the mold, so it is necessary to add a descaling machine.
The principle of shot blasting is that the impeller body is driven by an electric motor (directly driven or driven by a V-belt), and by the action of centrifugal force, the projectile with a diameter of about 0.2 ~ 3.0 (there are different types of cast steel balls, steel wire cut balls, stainless steel balls, etc.) is thrown to the surface of the workpiece, so that the surface of the workpiece reaches a certain roughness, so that the workpiece becomes beautiful. Or change the welding tensile stress of the workpiece to the compressive stress to improve the service life of the workpiece. It is carried out when the product is cold after the forging is completed.
After reading this article, you will know the difference between the phosphorus removal machine and the shot blasting machine, and don't mix it up next time! Call + 86 18013328669 for details.
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