Aluminum Oxide Powder for Refractory Materials

Aluminum oxide powder for refractory produced by our company is a kind of high-temperature refractory materials with wide range of uses, high packing density between particles, excellent high temperature, corrosion and abrasion resistance, aluminum oxide powder for refractory are mainly composed of alumina and other additives, with excellent refractoriness and thermal shock resistance, it can reduce the content of calcium aluminate cement, effectively reduce the content of CaO, and the flexural strength is increased by nearly double or more. Reducing the low melting phase generated at high temperature, it can be used stably for a long time at high temperature. Its melting point is about 2050°C, aluminum oxide powder for refractory materials that after the furnace high-temperature melting and recrystallization of a high-purity crystals, white color, its chemical stability, hardness in the HV = 2200Kg/mm2, micro-hardness of 7.5, toughness is low, because of the alumina powder high purity, dielectric strength can be a good feature, so alumina refractory materials to be able to stabilize the use of high temperature, will not appear! Softening or melting phenomenon. This makes alumina refractories become ideal high-temperature refractory materials, which can meet the needs of high-temperature working conditions.

Secondly, aluminum oxide powder for refractory have good corrosion resistance. In the chemical industry and metallurgical industry in the production process, often subject to corrosion of acid and alkali media, and alumina refractories can well resist the erosion of acid and alkali media, to maintain its stable chemical properties. This makes alumina refractories ideal for corrosion-resistant environments. In addition, aluminum oxide powder for refractory also have good wear resistance. In some occasions where wear-resistant materials are required, such as cement kilns and steel smelting furnaces, alumina refractories can withstand wear and tear at high temperatures, maintain their structural integrity and stability, and extend the service life of the equipment.

Overall, the aluminum oxide powder for refractory materials produced by our company have excellent high-temperature resistance, corrosion resistance, and wear resistance after high-temperature calcination. They have uniform particle size, good flowability, low conductivity, and controllable grain size. They are widely used in refractory materials and various high-temperature equipment and facilities. With the continuous development of high-temperature industry, alumina refractory materials will be widely used.