Duralox 997 Re-crystallized Alumina can be used up to a
temperature of 1800 0C. It is particularly suitable for use as an
insulator for rare metal thermocouples, because of its extremely low silica
content ; it ensures that there is no contamination of rare metals such as
platinum with silicon. Duralox 997 alumina closed one end Ceramic Thermocouple
Tubes are sintered vertically at approximately 1750 0C temperature, in
oxygen atmosphere in microprocessor controlled bell type kiln. After sintering,
100% thermocouple tubes are tested under air pressure @ 4 bar to ensure gas
tightness.
Duralox 997 Re-crystallized Alumina Ceramic is fine
grained, non porous, dense and impervious to all acids except hydrofluoric
acid. Duralox 997 is exceptionally high purity Alumina Ceramic, containing
99.7% Al2O3 and SiO2 less that 0.05% in its residue.
Physical Strength : Duralox
997 Alumina is extremely hard with high mechanical strength and resistant to
abrasion & corrosion and good thermal conductor at high temperatures.
Imperviousness : Duralox
997 Alumina products are fired at extremely high temperature around
1750 0C which ensures impermeability under severe & critical
conditions.
Good Electrical Resistivity : Duralox
997 Alumina maintains good electrical resistivity at high temperatures.
High heat Conductivity : Duralox
997 Alumina products are considered as high-tech products and are manufactured
with advanced technology, therefore maximum density is ensured with minimum
wall thickness. This makes the highest possible heat transfer.
Stability at high temperature and chemical Inertness : Duralox
997 is inert even at high temperatures in reducing atmosphere and flux attack
due to low silica content in its residue.
Product Range : Duralox
997 Alumina product range includes Ceramic thermocouple tubes
with Closed One End (COE), Open Both Ends (OBE), tubes with Single and
Multibores, Thin-wall tubes, Capillary tubes, Round and Oval rods above Ø 0.5
mm.
Amphoteric : Duralox
997 Alumina is highly resistant to acid slugs.
Ceramic thermocouple tubes and Multibore tubes other than above sizes can be manufactured on request.
Duralox
997 Alumina Ceramic Thermocouple Tubes & Multibore tubes are formed by high
pressure extrusion, dry/wet bag isostatic pressing.
We
are constantly working for improvement of the product quality, hence the data
given in the brochure may change as and when found necessary.
For More Info: https://www.jyoticeramic.com/pyrometry_tubes.php
Call us: 02532365766 , 2350120 / 338 / 729, 2351251
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