White aluminum oxide powder is made of alumina powder as the main raw material, adapted to chromium oxide, etc., and is made by high-temperature smelting. Pink aluminum oxide is pink, with a hardness similar to that of white aluminum oxide and higher toughness than that of white aluminum oxide.
Grinding tools made of white aluminum oxide have good durability and high grinding finish. It is suitable for precision grinding of measuring tools, machine tool spindles, instrument parts, threaded workpieces and sample grinding.
In the metallurgical industry, chromite is mainly used to produce ferrochrome and metallic chromium. Ferrochrome is used as an additive to steel to produce a variety of high-strength, corrosion-resistant, wear-resistant, high-temperature-resistant and oxidation-resistant special steels, such as stainless steel, acid-resistant steel, heat-resistant steel, ball bearing steel, spring steel, tool steel, etc. Metallic chromium is mainly used to smelt special alloys with elements such as cobalt, nickel, and tungsten. These special steels and special alloys are indispensable materials for aviation, aerospace, automobiles, shipbuilding, and the production of guns, missiles, rockets, and ships in the defense industry. In refractory materials, chromite is used to make chrome bricks, chrome-magnesia bricks and other special refractory materials.
In addition, white aluminum oxide is made of industrial alumina powder, which is melted in an arc at a high temperature of more than 2000 degrees and then cooled. It is crushed and shaped, magnetically separated to remove iron, and sieved into various particle sizes. It has a dense texture, high hardness, and sharp-angled particles. It is suitable for making ceramics, resin-bonded abrasives, grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc. It can also be used to make advanced refractory materials.
