supplier talks: the difference between sandblasting and shot blasting
Dongguan Humen Meijun Sandblasting Equipment Store is mainly engaged in: boron carbide nozzles, sandblasting guns, sandblasting pipes, sandblasting machine accessories, sandblasting clothing, sandblasting helmets, pressure sandblasting machines, air-controlled sand regulating valves, brown corundum CLEMCO air control sand control valve, ceramic beads. Phone: 0769-82261696
Shot blasting uses a high-speed rotating impeller to throw small steel shots or small iron shots and hits the part surface at high speed, so the oxide layer on the part surface can be removed. At the same time, the steel shot or iron shot hit the surface of the part at high speed, causing the lattice distortion of the part surface and increasing the surface hardness. It is a method of cleaning the surface of the part. Shot blasting is often used to clean the surface of the casting or strengthen the surface of the part. deal with.
Generally, shot blasting is used for regular shapes, etc. Several shot heads are up and down and left and right together, with high efficiency and low pollution.
In the repair and shipbuilding industry, shot blasting and sand blasting are commonly used. However, whether it is shot blasting or sand blasting, compressed air is used. Of course, it is not necessary to use a high-speed rotating impeller for shot blasting. The blasting gun
supplier tells us: Generally speaking, in the repair and shipbuilding industry, shot blasting (small steel shot) is mostly used for steel plate pretreatment (derusting before painting); sand blasting (ore repairing and shipbuilding uses ore sand) is mostly used in Formed ships or sections are used to remove old paint and rust from steel plates and repaint. In the repair and shipbuilding industry, the main role of shot blasting and sand blasting is to increase the adhesion of steel plate coating paint.
In fact, the cleaning of castings is not just shot blasting. For large pieces, the sand removal is generally first performed. The riser of the casting is cut off and placed in the drum. The parts collide with each other in the drum, and most of the sand on the surface is first removed. Remove it before blasting or blasting.
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