White corundumOil stone of material
White corundum is an artificial abrasive. White corundum is made by melting industrial alumina powder in a high-temperature arc of more than 2,000 degrees and then cooling. It is crushed and shaped, magnetically separated to remove iron, and screened into various particle sizes. Its texture is dense, hardness is high, and the particles form sharp corners. Suitable for ceramic ceramics, resin consolidation abrasives, grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc.
Advantages of white corundum as a grinding stone material:
1. Does not affect the color of the processed parts;
2. It can be used for sandblasting in the process where iron powder residues are strictly prohibited;
3. Micronized grade is very suitable for wet sandblasting and light polishing operations;
4. Fast processing speed and high quality;
5. The amount of iron oxide contained in it is extremely low, which is suitable for sandblasting operations where iron residues are strictly prohibited;
6. Go through the pickling step to remove impurities。
What are the general mesh numbers of oil stones?
General grindstone has a variety of mesh numbers: 120#, 240#, 400#, 600#, 1000#, 2000#, 3000#, 5000#, 8000#, etc., and even tens of thousands of meshes, these numbers of mesh numbers represent the unit content of corundum particles, the higher the mesh number, the finer the texture, the lower the mesh number, the coarser the texture, generally low mesh number of grindstones for coarse grinding, high mesh number is used for fine grinding.
Number of oil stones:
1) Mesh number 120#, 240#, 400#: mainly used for cutting the cutting edge of the tool, or for repairing the tool with a large gap;
2) Mesh number 600#, 1000#, 2000#: mainly used to consolidate the blade, repair small gaps, remove burrs, suitable for daily sharpening use;
3) Mesh number 3000#, 5000#, 8000#: These mesh numbers are used for grinding and polishing of tools, grinding mirror surfaces, and are also suitable for processes with high sharpness of tools.