How to select sandblasting equipment

Sand blasting is the process of cleaning and roughening the workpiece surface by using the impact of high-speed sand flow. Using compressed air as power, the sprayed materials (copper ore, quartz sand, emery, iron sand and Hainan sand) are sprayed to the workpiece surface to be treated at high speed in the form of high-speed jet beam. Sand blasting can remove all impurities, speckles, rust, burrs, oxides and other dirt on the workpiece surface, improve the surface cleanliness and control the roughness within controllable changes.

In addition to making the surface of the workpiece obtain certain cleanliness and different roughness, sandblasting also changes the outer surface or shape of the workpiece: due to the impact and cutting effect of the abrasive on the surface of the workpiece, the mechanical properties of the surface of the workpiece are improved, so it improves the fatigue resistance of the workpiece, increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating.

Selection of sand blasting equipment

1. Generally speaking, the sandblasting effect is mainly determined by the part material and sandblasting abrasive. According to different part materials, the range of sand blasting Abrasives can range from metal abrasives with strong effect to resin abrasives with soft effect. At the same time, dry sand blasting and liquid sand blasting are also the key factors to be considered.

2. Determine the type of equipment for production efficiency: select automatic sand blasting production line, semi-automatic sand blasting equipment, press in sand blasting machine and suction sand blasting machine according to the processing capacity.

3. Determine the equipment specification according to the workpiece size: select the engine room size according to the workpiece size, so as to have enough space to complete the processing work.

4. Compressed air requirements: determine the capacity of the air compressor according to the equipment specification, and leave 20% allowance to protect the service life of the air compressor.

Sand blasting is used for workpieces with complex shapes, which is easy to remove rust by hand, with low efficiency, poor site environment and uneven rust removal.

General sandblasting machines have sandblasting guns of various specifications. As long as it is not a particularly small box, you can put the gun in and clean it.

One kind of processing is to use water as a carrier to drive emery to process parts, which is a kind of sand blasting.

Dalian sand blasting and shot blasting can clean and decontaminate the workpiece. The purpose is to prepare for the next process, that is, to ensure the roughness requirements of the next process. In order to ensure the consistency of the surface, shot blasting can strengthen the workpiece, so the sand blasting is not obvious. Generally, shot blasting is small steel ball and sand blasting is quartz sand. Number of sub items according to different requirements. The precision casting industry uses sand blasting and shot blasting almost every day.