1, polishing of materials with chips and hard materials (such as circuit boards).
2. Point grinding operation
3. Final inspection of the last working procedure of grinding to obtain the best surface before surface treatment.
White corundum is made of industrial alumina powder, melted by arc at a high temperature of more than 2000 degrees, and then cooled. After crushing, shaping and magnetic separation, iron is removed and screened into various particle sizes. Dense texture, high hardness and sharp corners. Suitable for making ceramics and resin bonded abrasives, grinding, polishing, sandblasting and precision casting (corundum for precision casting). When it comes to white corundum, everyone's impression of it is hardness. With the rapid development of society, the demand for white corundum abrasive is increasing, and it is also the most widely used abrasive. White corundum is a kind of abrasive, which mainly undertakes cutting work. The abrasive is sharp and has strong hardness, heat resistance and toughness. Let's take a look at the characteristics of Qianjiaxin refractory Bian Xiao white corundum grinding wheel! White corundum grinding wheel is one of the most important grinding tools in grinding. White corundum grinding wheel is a porous body made by adding binder into abrasive, pressing, drying and roasting. And then put into an electric arc furnace for smelting, so the hardness is slightly higher than that of brown corundum, and the machinability is higher than that of brown corundum. Due to different abrasives, binders and manufacturing processes, the characteristics of grinding wheels are very different. The main raw material of white corundum (thousands of refractories) is industrial alumina powder.
Granularity sand: No.46 white corundum, No.60 white corundum, No.80 white corundum and 100 white corundum.
Sand interval: 0- 1, 1-3, 3-5, 5-8, 8- 12.
Fine powder: 325-0
Micro powder: w5, w7, w63, w 10, w 14.
Advantages of white corundum grinding wheel
The hardness of white corundum grinding wheel is higher than that of brown corundum grinding wheel, and its edges and corners are sharp. The white corundum grinding wheel can be used to process some carbon steel, medium carbon steel and hardened steel which are not particularly demanding in hardness.
In the grinding process, the grinding heat generated by the white corundum grinding wheel is relatively small and has good machinability. Can be made into a large water mill grinding wheel, and then processed with a large water mill.
Because the toughness of white corundum material is not particularly good, the abrasive particles will be broken when cutting with white corundum. However, if some binders are adjusted, they can be particles before abrasive particles are replaced, and they are faster. When grinding white corundum, the new edges and corners are exposed quickly and self-sharpening, and the grinding wheel does not need to be dressed frequently, which can improve a lot of work efficiency.
White corundum grinding wheel can reduce the burn degree of workpiece and protect the vertical cutting degree of workpiece well. Moreover, the white corundum grinding wheel does not contain iron sulfide and will not produce toxic sulfur smell, which is good for the environment and operators.