The capacity of the alumina crucible is 5 to 2000ml according to appearance, maximum capacity can be
customized, and maximum size is 450mm. Under the general condition,
the analyzed and fired substance is put into the alumina crucible or a sagger and then put into analyzing or firing equipment to be heated.
Heating and cooling speed is different according to the
characteristics of the equipment and products. A raw material for
manufacturing the alumina crucible and the sagger is subjected to thermal expansion, and the alumina crucible and the sagger are easily cracked if the heating or cooling speed is overhigh, so
that the speed had better be low to prolong the service life of the
crucible and the sagger. A corundum crucible contains 99.70% of
corundum, has good high temperature insulation property and
mechanical strength at the temperature of 1650 to 1700℃ in
oxidizing atmosphere and reducing atmosphere, high heat
conductivity and low thermal expansivity, does not react with air,
water vapor, hydrogen, carbon monoxide and so on at the temperature
of more than 1700℃, and has the short-term maximum service
temperature of 1800℃.
Alumina consists of oxidized aluminium and is the most popular
among all fine ceramics.
High-purity alumina ceramic series is the ceramic material with
Al2O3 content 99.5% and 99.9%.
A. Electrical Insulating properties
B. Wear Resistance
C. Heat Resistance
D. Corrosion Resistance
E. Plasma Resistance
|Material code||characteristics||Density(g/cm³)||Young's Moulus(GPa)||Flexural strength(MPa)||Fracture Toughness(MPa*m1/2)||Thermal Expansion RT~800°)||Thermal Conductivity(w/m*k)||Volume Resistivity(Ω*cm)|
|ALP01||General Purpose High Rigidiy||3.9||370||440||3~4||7.7||33||＞10⋀14|
|ALP02||High Purity High Rigidity||3.9||370||450||3~4||7.9||30||＞10⋀14|
Wuxi Special Ceramic Electrical mainly produces alumina, Silicon nitride, Zirconia, Steatite, Boron nitride,
Cordierite,mullite products, widely used in metal welding, electronic conductor, mechanics,
assembling, insulation, chemicals, instrument, textile, nuclear
industry, aerial field.We accept trial produce according to the
drawing or sample.It usually takes 15 days to finish trial
product.Mass produce usually takes 30 days.Goods' package is carton
or PLT.It can be negotiable with each other.
We mainly sell goods to toshiba lighting group in Japan and
Europe.Our aim is to deliver goods with high quality at quick
quality guarantee:mass produce by 100% inspection