Производитель Керамических изоляционных шариков 95% Алюминиевые шарики изоляция алюминиевых керамических

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Specification


Color
White or red
Shape
custom made
Size
custom made
Characteristics
Insulation, wear resistance, high temperature resistance




95%,99%,99.7% Al2O3 Material parameters
Thing
Test condition
Unit symbol
95% alumina ceramic
99% alumina ceramic
99.7% alumina ceramic
Main Chemical Composition
Alumina
Alumina
Alumina
Bulk Density
G/cm3
>3.6
3.89
3.96
Maximum Use Temperature
1450℃
1600°C
1650°C
Water Absorption
%
0
0
0
ROHS Hardness
≥85
≥89
≥89
Bending Strength
20℃
MPa (psi x 103)
358(52)
550
550
Compressive Strength
20℃
MPa (psi x 103)
2068 (300)
2600(377)
2600(377)
Fracture Toughness
K(Ic)
MPa m1/2
4-5
5.6
6
Thermal Expansion Coefficient
25-1000℃
1X 10-6/°C
7.6
7.9
8.2
Coefficient
20℃
W/m°K
16
30
30.4
Thermal Conductivity
Thermal Shock Resistance
TC
250
200
200
Dielectric Constant
1MHz.25°C
9
9.7
9.7
Dielectric Strength
ac-kV/mm (ac V/mil)
8.3 (210)
8.7 (220)
8.7 (220)
Volume Resistivity
100°C
Ohm-cm
> 1013
> 1014
> 1014


Product Description




Advantages
1). Good insulation, good safety, and long service life.
2). Precision grinding and polishing.
3). Good heat dissipation, small size, more environmentally friendly and energy-saving.
4). Good thermal conductivity
5). Large specific heat capacity
6). Low pressure drop
7). Good thermal shock resistance
8). Working temperature: 600 ℃-1200℃




Company Profile




Yixing Mingwang refractory electric porcelain co., Ltd. is located in yixing city, a famous historical and cultural city which is rich in pottery hometown, the world of cave, the sea of bamboo, the oasis of tea and the hometown of professors. The company's products with alumina, talc porcelain as the main raw materials, after a series of artificial synthesis and refining processing into fine powder, through high temperature and high pressure sintering process. The main products are alumina ceramics, zirconia ceramics, lamp ceramics, electric heating ceramics, resistance ceramics, electrical ceramics, talc porcelain, used for electronic appliances, textile machinery, thermal instruments, light source lamps. Electric heating appliances, resistors, temperature controller and other industries, but also according to user needs to produce ceramic tubes, ceramic substrate, water valve pieces and various ceramic crafts, special engineering ceramics, temperature resistant ceramics. The company has the ceramic technology research and development ability, can provide technical support for users, sample or map to customize various ceramic products, and provide agent or self-care of various kinds of technology or commodity import and export business.






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