Use of Sunrise refractory chrome corundum brick

Due to the abundant raw materials used in corundum materials and convenient supply, in terms of manufacturing process, both traditional refractory production processes can be used to produce corundum refractories, and special refractories, namely high-temperature ceramics, can be produced from traditional ceramics. Therefore, after half a century of research and production, the technology has become increasingly mature and the variety has continued to increase. It has become a refractory with a wide range of applications. Its uses are as follows:
 

 (1) Due to high temperature resistance, corrosion resistance, high strength and other properties, it is used for pouring steel sliding nozzles, smelting rare and precious metals, special alloys, high purity metals, glass drawing, crucibles and vessels for making laser glass; various high temperature kiln , Such as refractory materials, ceramics, linings (walls and pipes) of ironmaking blast furnaces; physical and chemical utensils, spark plugs, heat-resistant and oxidation-resistant coatings. Low-silicon sintered corundum bricks with SiO2 less than 0.5% are special furnace linings for carbon black, boron chemical industry, chemical fertilizers, ammonia reactors and gasifiers.
 

(2) Due to the characteristics of high hardness, good abrasion resistance and high strength, it is used as a component of various reaction vessels and pipes and chemical pumps in chemical systems; it is used for mechanical parts and various molds, such as wire drawing molds, Squeeze the tip of a pencil core, etc .; make knives, abrasives, bulletproof materials, human joints, sealed grinding rings, etc.
 

(3) Due to high-temperature insulation, it is used as a thermocouple's ferrule and protection tube, insulating porcelain used in atomic reactors, and various other high-temperature insulation components, such as platinum-rhodium thermocouples, even if it reaches 1720 ° C. Breathable.

(4) Al2O3 is an ionic crystal with a very stable structure. Used at high frequency, high voltage and high temperature, its insulation is still excellent, coupled with its small loss and low dielectric constant, it is widely used in the electronics industry for solid-state integrated circuit substrate sockets, housings, and porcelain frames. , Microwave window, missile radar antenna cover, etc.
 

(5) Corundum products have good air-tightness and are tightly airtight even at high temperatures, so they are widely used in electrical vacuum, such as the use of corundum to make various large electronic tube shells, and dual in-line package housings in solid micro circuits.
 

(6) Corundum insulation materials, such as corundum light bricks, corundum hollow balls and fiber products, are widely used in furnace walls and roofs of various high temperature furnaces, which are both high temperature resistant and thermally insulating.
 

(7) Transparent corundum products can be used for lamp tubes and microwave fairings. In addition, Na-β-Al2O3 products are dielectric materials for manufacturing sodium-sulfur batteries.