How to reduce wear when blasting with white fused alumina sand

How to reduce wear when blasting with white fused alumina sand
white fused alumina is widely used in bonded abrasives, coated abrasives, polishing and precision casting industries, so how to reduce wear in the process of using white fused alumina sandblasting?
1. Sand blasting
The secret to optimizing the lifespan of your sand, while also optimizing your blasting results, is to use the proportion of sand you use. Using too much sand won’t get you any faster work, your sand will wear out a lot faster. Using too little will reduce your efficiency, and it will be difficult to achieve the effect you want. The amount of sand should be between 50% and 90% of the storage device. Determine your sandblasting time to meet your requirements, too long is a waste. According to the effect you want and the material of your workpiece, choose the suitable sand to complete the work, and find the right position angle.
2. The angle of sandblasting
Many people believe that holding the blast gun 90 degrees to the work surface will optimize the process of removing rust or stains from the surface of the workpiece. However, this actually slows down the blasting process and causes the media (sand) to wear faster. Your blasting gun should be oriented at a 30-45 degree angle to the surface you are treating to allow your abrasive to achieve the best results with the least amount of wear. Especially when you want to find an effect that suits what you want, work through multiple angles to find the balance you need, make a record, and create your best spray surface according to this standard in the future.
3. Sandblasting distance
When sandblasting, machining closer to the surface of your part does not give better results and wastes sand. This is because the working distance reduces the size of the blasting area, increases the cycle time, and makes it easier to crush the sand, reducing its life. The idea is somewhere in between, getting the best balance of wear rate and rate for your abrasive. Hand controlled suction jet system, six to eight inches. When using direct injection pressure, you should be 10 to 14 inches away. Also keep in mind that the closer you get to thin pieces, the easier it is to deform them, no matter what blasting material you use. In addition to finding an optimal distance, avoid deformation of the blasted area.