electrical Alumina Ceramic Disc insulator tube bush
Reputation depends on quality, quality comes from Hard!
Alumina Ceramic:
The hardness of corundum powder can be used as abrasive, polishing powder, high temperature sintered alumina, called artificial corundum or artificial gemstone, which can make diamonds in mechanical bearings or watches. Alumina is also used as a high-temperature refractory material, refractory bricks, enamel, porcelain, artificial gems, etc., and alumina is also a raw material for smelting aluminum. Calcination of aluminum hydroxide produces γ-. γ-Al2O3 has strong adsorption and catalytic activity and can be used as adsorbent and catalyst. The main component of corundum is α-Al2O3. Barrel or cone shaped cubic crystals. There is a glass luster or a diamond luster. The density is 3.9 to 4.1 g/cm3, the hardness is 9, and the melting point is 2000 ± 15 °C. Do not dissolve in water, and are not soluble in acids and bases. High temperature resistance. Colorless and transparent, called white jade, reddish ruby containing traces of trivalent chromium; blue sapphire containing divalent iron, ferric iron or tetravalent titanium; dark gray, dark black with a small amount of triiron tetroxide Called corundum powder. Can be used as a precision instrument bearing, watch diamonds, grinding wheels, polishing agents, refractory materials and electrical insulators. Colorful jewels for decoration. Artificial ruby single crystal can be used to make laser materials. In addition to natural minerals, it can be prepared by melting aluminum hydroxide with an oxyhydrogen flame.
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.
