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Chrome sand for foundry is the product of natural chromite processed by crushing and screening, and its main chemical composition is Cr2O3. This kind of sand has stable heating volume and high thermal conductivity.

Because white corundum has the characteristics of high temperature resistance, corrosion resistance and high strength, it can be used for sliding water outlets, smelting rare precious metals, special alloys, ceramics, ironmaking blast furnace linings; Physical and chemical utensils, spark plugs, heat-resistant and anti-oxidation coatings.

White corundum is made of industrial alumina powder, which is smelted at a high temperature above 2000 degrees in an electric arc, then cooled, crushed and shaped, magnetically separated to remove iron, screened, and packaged.

White corundum abrasive is made of industrial alumina powder as raw material, smelted at a high temperature of more than 2000 degrees in an arc, crushed and shaped, magnetically separated from iron, and screened into a variety of particle sizes.

Brown fused alumina is a commonly used sandblasting abrasive. Today, Sicheng Xiaobian will take you to understand the characteristics of brown fused alumina sandblasting.

Brown corundum Smelting process method and characteristics:

Corundum is a general term for a large class of corundum materials. Brown corundum , white corundum, black corundum, zirconium corundum, etc. can all be called corundum. Corundum (also known as silicon carbide) can be divided into natural corundum and artificial corundum, and silicon carbide has black corundum. There are two types of silicon carbide and green silicon carbide. Among them, black silicon carbide is made of quartz sand, petroleum coke and good silica as the main raw materials through high-temperature resistance furnace smelting. Is there any difference between emery and brown corundum? Brown corundum is made of industrial

Green silicon carbide is made of petroleum coke and high-quality silica as the main raw materials, adding salt as an additive, and smelted at high temperature in a resistance furnace. The smelted crystal has high purity and high hardness. Its hardness is between corundum and diamond, and its mechanical strength is high. higher than corundum. So what are the production processes and uses of green silicon carbide?

The density of white corundum is divided into two types,

Micro powder GB standard : W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5 Daily standard : #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 #10000 European standard: F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 White corundum grain …

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