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Alumina ceramic tube
Alumina ceramics are divided into two kinds: puritate ridicată și tip obișnuit.
1. Ceramică de alumină de înaltă puritate Conținut de Al2O3 în 99.9% deasupra materialului ceramic, datorită temperaturii sale de sinterizare până la 1650-1990 ℃, lungimea de undă a transmisiei de 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 |
Dielectric Strength (kv/mm) | 9 | 10 | 11 | 12 |
Working Temperature 0C (Long time use) | 1300 | 1400 | 1600 | 1750 |
Water Absorption | 5 | <0.2 | <0.2 | <0.1-0.2 |
Specificație | DIN (mm) | ID (mm) | Length (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.Bună stabilitate chimică
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).
Î1: Sunteți o companie comercială sau un producător ? |
A: Suntem fabrica. |
Q2: Furnizați probe ? |
A: da, Mostre gratuite. |
Q3. Puteți produce în funcție de probe? ? |
A: da, putem produce prin eșantioane sau desene tehnice. Putem construi matrițele |
Î4. Vă testați toate bunurile înainte de livrare? |
A: da, avem 100% testați înainte de livrare timp de 3 ori. |
Î5. Service post-vânzare |
A: Dacă găsiți produse rupte în cantitate masivă, vom produce din nou sau vom compensa banii direct și vom oferi reduceri în următoarea comandă. |
Putem semna acordul de calitate la confirmarea comenzii. Deci, trebuie să ne asigurăm calitatea pentru dvs.. |
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