How to produce quality flap discs?
---Brown corundum knowledge
How is brown corundum made? It is bauxite, coke, iron filings together in the electric arc furnace by 2250℃ above high temperature melting smelting, reduction system of brown man-made corundum. The main composition of brown corundum is alumina, but also contains a small amount of Fe, Si, Ti and other elements. The performance of brown corundum is related to the content of alumina, the higher the alumina content, the higher the hardness of brown corundum, the stronger the grinding force.
Classification:
Divided by smelting: brown fused alumina is divided into dumping furnace brown fused alumina and fixed furnace brown fused alumina.
Divided by alumina content: including grade one brown corundum, grade two brown corundum, grade three brown corundum.
Divided by particle shape: roller sand, bamak sand, ball grinding sand.
Divided into special processing methods: including high temperature calcined corundum, middle temperature calcined corundum, and water washing, pickling, dry cleaning (air cleaning) corundum.
From the use of division: brown corundum sand and sand, F sand, P sand and brown corundum W powder. Consolidation abrasives and sandblasting generally use F sand, emery cloth and other coated abrasives use P sand, W is micro powder, section 320# is W40.
Application:
Brown corundum has a wide range of applications, can make abrasives, can also be used in the field of refractory materials, can also be sandblasted abrasives, wear-resistant floors, functional fillers, filter media, etc..
1. Application in the field of refractory materials. Can be used for castable, refractory brick, ramming material, slide plate, nozzle, ladle, furnace lining material, precision casting, etc.
2.In the field of abrasive applications: can be made into grinding wheel, belt, sand paper, emery cloth, resin cutting pieces and other products. Used for coarse grinding, fine grinding and fine grinding.
3. In the field of sandblasting application: brown corundum as a sandblasting material cost performance is very high, its grinding performance is good, moderate hardness, high packing density, good toughness. In the aluminum profile, copper profile glass, washed jeans, precision mold and other fields are widely used; Brown corundum can also grind high tensile metal materials, such as steel, malleable iron, hard bronze, etc., more suitable for the surface of the material workpiece decontamination, rust removal, corrosion prevention, oxidation skin, etc.
4. Free grinding: brown corundum abrasive can grind picture tube, optical glass, monocrystalline silicon, lens, crystal glass, jade, etc..
5.In the wear-resistant floor, functional packing field application: brown corundum can be used as building highway pavement, runway, dock, parking lot, industrial floor, sports venues and other wear-resistant materials.
6.As a filter medium application: brown corundum can be used as a filter medium, purification of industrial water or sewage treatment essence agent, can also be used as oil drilling mud weighting agent.
7.In the field of hydraulic cutting application: rely on high pressure hydraulic jet for basic cutting, can cut oil pipelines, steel and other parts, is a more environmentally friendly, safe cutting way.
