How to judge the quality of white corundum abrasive
As you can see in the title, today I will explain how to judge the quality of white corundum abrasives. I believe that everyone has a preliminary understanding of white corundum abrasives. Through the comparison of white corundum abrasive with other abrasives, we can know the use of white corundum abrasive in sandblasting. Next, the editor will tell you how to judge the quality of white corundum abrasive.
The simple method of operation is to judge by visual observation:
1. Product color contrast
The color of the white corundum abrasive itself is white. If black and off-white substances are found, they are impurities. The amount of impurities means the purity of the white corundum abrasive.
2. Comparison of washing effects of products
Put a small amount of white corundum abrasive sample into transparent glass, add the same volume of water, and after stirring, see if the water is cloudy. If it is slightly white, it means that the white corundum abrasive has a low mud content, and the water washing process is used. If the color of the aqueous solution is found to be gray, it means that the mud content of the abrasive is slightly higher, which proves that the washing process is not very thorough. If the color of the aqueous solution is yellowish or cloudy, it means that the washing process of the product is poor or even useless.
In addition to observing the quality of the product with the naked eye, you can also test the actual use effect:
3. Comparison of surface effects of sprayed workpieces
If there are too many impurities in the white corundum abrasive, the surface of the workpiece after spray grinding will have different color spots or color spots, the surface will not look smooth, and the surface roughness of the workpiece will be uneven, and the harm is far more than that. If the workpiece needs to be coated with an anti-corrosion coating in the later stage, it will be found that the adhesion of the coating is uneven, the coating will fall off directly, and the corrosion and oxidation speed of the product will also be accelerated.
4. The effect of the cut surface after use
If there are too many impurities in the white corundum, the hardness of the material medium will fluctuate, and the cutting surface will be rough when used. Especially when working on brittle materials such as glass, the damage of the cutting surface will be more obvious, and the cutting surface of the glass will explode or even break. At the same time, some impurity powder will be fused to the glass surface under the impact of cutting, which is difficult to remove.