insulated cooling 99% Alumina Ceramic shell case sleeve
Reputation depends on quality, quality comes from Hard!
Alumina Ceramics:
Preparation process: due to different preparation processes, various types of Silicon Nitride Ceramics have different microstructures (such as porosity and pore morphology, grain morphology, intergranular morphology, and intercrystalline second phase content, etc.) and therefore various properties There is a big difference. To obtain Si3N4 ceramic materials with excellent performance, first of all, high-quality Si3N4 powders should be prepared. The quality of Si3N4 powders prepared by different methods is not completely the same, which leads to the difference in their uses. , Often attributed to the developers do not understand the differences between various ceramic powders, and their lack of understanding of their properties. In general, high-quality Si3N4 powder should have a high alpha phase content, uniform composition, less impurities and even distribution in ceramics. The α phase of Si3N4 powder with small particle size, narrow particle size distribution and good dispersibility should account for at least 90%. This is because during the sintering process of Si3N4, part of the α phase will be converted into β phase without sufficient α phase Content, it will reduce the strength of the ceramic material. It is mainly used in machinery, metallurgy, chemical industry, aviation, semiconductor and other industries in the early stage of application. Good expected results In recent years, with the development of manufacturing processes and test analysis technology, the reliability of Silicon Nitride ceramic products has been continuously improved, so the application area is constantly expanding. It is particularly commendable that silicon nitride ceramic engines are being developed, and Great progress has been made, which has become a major event in science and technology. The main contents of related applications are: (1) In the metallurgical industry, crucibles, muffle furnaces, burners, heating body fixtures, casting molds, The components on the thermal equipment such as aluminum liquid conduit, thermocouple temperature measurement protection sleeve, aluminum electrolytic cell lining, etc. (2) In the mechanical industry, high-speed turning tools, bearings, support parts for heat treatment of metal parts, rotor engine scrapers, Guide vanes and turbine blades of gas turbines (3) are made into ball valves, pump bodies, sealing rings, filters, heat exchanger parts, fixed catalyst carriers, combustion boats, evaporating dishes, etc. in the chemical industry (4) Used in the manufacturing of switching circuit substrates, film capacitors, electrical insulators that withstand high temperatures or rapid temperature changes, radar radomes, missile tail sprays in aviation, atomic energy and other industries Tubes, supports and separators in nuclear reactors, carriers of nuclear fission materials, etc. (5) Can be made into artificial joints in medical engineering (6) The silicon nitride full ceramic engine under development replaces the same type of metal engine.
properties: High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.
Data Sheet↓
Color: White/Ivory Density: 3.9g/cm3 Alumina Content: 96% 99% 99.5% Gas permeability: 0 Water Absorption: 0 MONS' Hardness: 82 Vickers Hardness (Hv50): 15.7(1600) Gpa(Kg/mm²) Flexural Strength(20°C): 330Mpa Compressive Strength(20°C): 2000Mpa Fracture Toughness (20°C): 4 MPam1/2 Thermal Conductivity(20°C): 27.5W(m.K) Thermal Expansion Coefficient: 7.6 10-6/°C Thermal Shock Resistance: 200 △T°C
Maximum use temperature 1650°C
Dielectric Strength: ＞10 KV/mm
Dielectric Constant: 9.1er
Dielectric Loss Angle(1MHz): 0.0002-0.0003
Volume Resistivity(20°C): ＞1014Ω.cm
Application industry: Machinery, electronic, chemical, petroleum etc. Specific application: Electrical ceramic substrate, plunger, sealing ring etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
Products Show
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
