99 alumina ceramics are high-purity alumina ceramics with a variety of excellent properties and are widely used in various industrial fields.
성능 매개변수
고순도: 알루미나 함량은 99%에 이릅니다.
High density: The density is 3.88 g/cm ³.
높은 경도: Wechsler hardness is 20 Gpa.
높은 기계적 강도: compressive strength of 2500 MPa, flexural strength of 300 MPa.
높은 내열성: the maximum operating temperature can reach 1700 ° C.
Good electrical insulation properties: volume resistivity of 10 ^ 14 Ω · cm, dielectric constant of 9.80, dielectric strength of 22 KV/mm.
높은 열전도율: thermal conductivity is 30-35 W/m · k.
내식성: strong resistance to acids, alkalis, and other chemicals.
내마모성: It has high wear resistance and can withstand friction and wear during long-term high-speed movement.
Low water absorption rate: The water absorption rate is 0.
응용 분야
화학 장비: Due to its corrosion resistance and high temperature resistance, 99 alumina ceramics are widely used in chemical equipment, such as pump bodies and seals.
항공우주: used in the manufacture of high-temperature crucibles, refractory furnace tubes and other high-temperature structural parts.
Electronics and electrical appliances: used to make high-temperature insulating support materials, ceramic substrates, etc., to improve the stability of superconducting magnets.
의료 장비: Due to its excellent wear resistance and chemical stability, it is used in the manufacture of wear-resistant components in medical equipment.
자동차 산업: Cylinder liners used in engines and pumps to increase piston life and engine efficiency.
Telecommunications and home appliances: used for a variety of wear-resistant and high-temperature structural components.
제조 프로세스
99 alumina ceramics are usually made by ball milling mixing, granulation, molding and sintering. Its manufacturing process can meet the requirements of small and mass production, and is widely used in water resource management, medical, automotive, telecommunications and home appliances.
99 alumina ceramics play an important role in many high-tech fields due to their excellent physical and chemical properties.
