Product Description: Extreme high temperature stability and Refractory Alumina Ceramic Roller |
Application: Electrical industry Aerospace industry |
Medical industry Chemical industry |
Machinery industry Construction industry |
Charactristic: * Hard, wear and abrasion resistance |
* Good smooth and high strength and stiffness |
* Resists strong acid and alkali attack at elevated temperatures |
* Extreme high temperature stability |
*Superior gas and vacuum tightness |
* Good airproof capability |
* Excellent dielectric properties from DC to GHz frequencies |
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Product Descripion: Alumina Ceramic (Al2O3) is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc
Technical Date: ( 1 )
Item | 99.5% Alumina Crucible | |
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Chemical composition | Al2O3 | ≥99.5 | |
R2O | ≤0.2 | |
Fe2O3 | ≤0.1 | |
SiO2 | ≤0.2 | |
density (g/cm2) | ≥3.85 | |
porosity (%) | <0.5 | |
Bending strength (Mpa) | >350 | |
compressive strength (Mpa) | >12000 | |
dielectric constant ∑(1MHz) | 2 | |
( 2 )
Item | 95% , 99% Alumina Crucible | |
Test Condition | Unit Symbol | 95% | 99% | |
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The main chemical ingredient | / | / | Al2O3 | Al2O3 | |
Bulk Density | / | g/cm3 | 3.6 | 3.89 | |
Maximum Use Temperature | / | / | 1600°C | 1700°C | |
Water absorption | / | % | 0 | 0 | |
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Flexural strength | 20° C | MPa (psi x 103) | 358 (52) | 550 | |
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Coefficient of Thermal Expansion | 25-1000° C | 1X 10-6/°C | 7.6 | 7.9 | |
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Coefficient of thermal conductivity | 20° C | W/m °K | 16 | 30 | |
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Our comany:
HIGHBORN is a modern enterprise management company, who devote themselves to the service of product research and development, construction and maintenance. Our company has a long history. We own the advanced equipment, a young, energetic, proficient and experienced team of professionals which with leading technology strength, excellent operational management and high-quality services what made us be recognized by customers of the chemical, petroleum, electric power, metallurgy, building material, aerospace, machinery and other industries.
Certification:
Packing and Delivery: Packaging Details: By cartons or wooden boxes or according to customer's requirements |
Delivery Details: Shipped in 7-30 days after payment |
FAQ: 1.What is your payment term? We mainly accept T/T, West Union, Credit card and L/C. Paypal will be available in the near future.2.Where is your main market?We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 151 countries we have been exported, we also get good reputation from our customers.3.What about the package?We pack with plastic bubble paper, carton box, then safe wooden box outside, we can control the breakage less than 1%.4.Do you support OEM?Sure! We offer OEM for many customers all over the world.5.Will your company supply wooden wicks samples?Yes,we do.The sample expense will be deducted from the value of your order.6.How long is the delivery time? For the standard products,like ceramic substrate and insulating rods, delivery time is normally 7 working days. For hot pressed boron nitride and machinable glass ceramic, it's about 10 working days. For customized products made of alumina, zirconia, boron carbide and silicon nitride, total producing time is about 30-45 working days.