The sintering temperature of alumina ceramic ring can be as high as 1650-1990℃. Alumina ceramic ring has excellent mechanical strength, high temperature resistance, wear resistance, corrosion resistance, good insulation performance and durability. It has long life, energy saving, environmental protection, safety, controllable and other advantages.
Alumina ceramic ring has low dielectric loss, high volume resistivity, high strength, high hardness, small linear expansion coefficient, good wear resistance and heat resistance due to its excellent high-frequency electrical properties. Alumina is used in 95% of the general economy. For special functional requirements, only 99% ~ 99.9% alumina ceramics are selected.
Alumina ceramic ring used in machinery manufacturing, aerospace, precision instruments, petrochemical, new light source, textile machinery, electrical appliances, refrigeration equipment, electric heating meters, instrumentation, chemical industry, communications, communications and other industries.
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