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Alumina ceramic tube
Alumina ceramics are divided into two kinds: vysoká čistota a obyčajný typ.
1. Vysoko čistý oxid hlinitý zliatiny Al2O3 v 99.9% nad keramickým materiálom, vďaka svojej vysokej teplote spekania až 1650-1990 ℃, prenosová vlnová dĺžka 1 ~ 6μm, generally made of molten glass to replace the platinum crucible: the use of its light transmittance and alkali metal corrosion resistance as sodium lamp tube;In the electronic industry can be used as integrated electric roadbed board and high frequency insulation materials.
2. Ordinary alumina ceramics according to the content of Al2O3 is divided into 99 porcelain, 97 porcelain, 95 porcelain and other varieties, sometimes Al2O3 content in 80% or 75% is also classified as ordinary alumina ceramics series.Among them, 99 alumina porcelain materials are used for making high temperature crucible, furnace tube and special wear-resisting materials, such as ceramic bearings, ceramic seals and water valve plates, etc.95 alumina porcelain is mainly used for corrosion resistance, wear resistance parts;Due to the addition of talc, the electrical properties and mechanical strength are improved. It can be sealed with molybdenum, niobium, tantalum and other metals, and some of them can be used as electrical vacuum devices.Main performance index about alumina ceramic tube:
Al2o3 content % | 70-75 | 85 | 95 | 99.7 |
Density(g/cm3) | 3.0 | 3.4 | 3.7 | 3.9 |
Bending Strength(Mpa) | 85N/MM2 | 300 | 364 | 450 |
The coefficient of thermal expansion(20O0C-80O0C.) | 6 | 7 | 7.6 | 8 |
Thermal conductivity (W/(m.R) | 17 | 18 | 20 | 35 |
Dielektrická pevnosť (kv/mm) | 9 | 10 | 11 | 12 |
Pracovná teplota 0C. (Long time use) | 1300 | 1400 | 1600 | 1750 |
Water Absorption | 5 | <0.2 | <0.2 | <0.1-0.2 |
Špecifikácia | OD (mm) | ID (mm) | Sklársky hlinený téglik s krížovým hrdlom na tavenie skla (mm) | Remark | |
Thermocouple protection tube | 7-120 | 5-110 | 10-2000 | we can
customize as per your requirements!
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Insulated tube | Single hole | 3-120 | 1-110 | 10-2000 | |
Double holes | 2-10 | 0.5 - 2 | 10-2000 | ||
Four holes | 2-10 | 0.5 -2 | 10-2000 |
1.Wear-resisting
2.Acidproof alkali corrosion
3.High temperature (1600-1700 degree centigrade)
4.Dobrá chemická stabilita
5.High insulation
6.Strong adsorption capacity
Thermocouple protection tube, furnace tube, element support tube, insulator, fish spine beads, crucible, metal transfer assembly, kiln furniture, cotton batting, support beam, regulator, furnace fittings, nozzle, filter, lead through tube
Electrical and electronic applications:
Element support tubes, insulators, ceramic struts, lead through tubes, connector modules, heater support elements, high temperature electrical insulators
Mechanical application:
Sealing, bearing, pump shaft, valve assembly, pipe lining
Ceramic thermocouple tubes are used to manufacture temperature measuring and control equipment and are designed with alumina or silicate ceramics.They can be used from the pipe as RTD resistance temperature sensors and resistance thermometers (RTD = resistance temperature equipment).
Q1: Ste obchodná spoločnosť alebo výrobca ? |
A: Sme továreň. |
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A: Áno, máme 100% test pred dodaním 3 krát. |
Q5. Popredajné služby |
A: Ak nájdete nejaké rozbité výrobky v hromadnom množstve, budeme vyrábať znova alebo priamo kompenzovať peniaze a ponúkneme zľavu v nasledujúcom poradí. |
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