How to reduce the wear of white aluminum oxide during sand blasting?
1, Sand blasting angle
Many people believe that using a sand-blasting gun at a 90-degree angle can optimize the process of rust removal and cleaning on the surface of work pieces. However, this will slow down the process of sand blasting and result in that the wear of abrasives is much faster. In fact, sand-blasting can achieve good effect with lower wear of white fused alumina when the sand-blasting gun at a 30-45 degree Angle from the surface of your treatment area. Especially if you are looking for a desired effect, by testing from multiple angles, you can find the balance you need, and then make a note of it, and finally you can do sand blasting according to that standard.
2, Sand blasting distance
When sandblasting, the closer the processing surface of white fused alumina is to the work piece, the worse the effect is, and the more sand is wasted. This is because the working distance reduces the size of the sandblast area, increases the cycle time, can more easily crush the abrasives, and reduce the service life of abrasives.
The next idea can give you a good balance between the rate of sand wear and the rate of sand wear. Manual suction and ejection system is at a distance of 6 to 8 inches. When using direct injection system pressure, it should be at a distance of 10 to 14 inches. Also remember, no matter what sandblasting method you use, the closer you get to the thin pieces, the more they will deform. In addition to finding the right distance, avoid deformation of the blasting area.
3, Sandblasting-treatment
This technique can be used to optimize the surface life of your sand, and you can also optimize your effect of sandblasting by adjusting the proportion of sand. Using too much sand won’t make you run faster, but your sand will wear out faster. However, using too little sand will reduce the efficiency of sandblasting, and can make it difficult to get the results you want. The sand content of white fused alumina should be between 50% and 90% in the storage equipment. In addition, to determine a reasonable sandblasting time, and it is a waste to take too much time to process. Moreover, choosing the right sand to do the job and find the right Angle according to the effect you want and the material of the work piece to be processed.
