ULTRA HIGH POWER GRAPHITE CRUCIBLE
The graphite crucible for vacuum smelting of our company's
intermediate frequency furnace is based on imported needle
coke, three high graphite crushed and high-quality modified
asphalt as the main raw materials. After firing at a
predetermined temperature rise curve, it is then
impregnated with high pressure, re-fired, and then
graphitized at a temperature above ***0 ° C. The ultra-high
power graphite crucible has the characteristics of compact
and uniform structure, high strength, low resistivity, good
thermal conductivity and high bulk density. It is widely
used in high-frequency smelting of medium frequency
furnaces, copper, copper alloys and non- ferrous metals.
Product specifications: diameter Φ**0 ～ **0 mm, height
**0 ～ ***0 mm, smelting capacity **0 kg ～ ***0kg.
1.Handle with care during transportation, handling, and
storage. Pay attention to waterproof and moisture-proof. Do
not damage it;
2. Purge the inner surface of the crucible with high
pressure air before use;
3. Handle the smelting material gently, not too violent or
too fast, and damage the inner wall of the crucible;
4. After the smelting is completed, the vacuum furnace can
be destroyed only after cooling to a certain temperature;
5. The first time you pay attention to the slow temperature
rise, it will help increase the service life.
Technical index of high power graphite crucible
Technical index
The difference between Graphite Crucible for Vacuum
Smelting in Medium Frequency Furnace and Traditional
Graphite Crucible.
Ultra High Power Graphite Crucible
Ultra-high power graphite crucible has the characteristics
of high temperature resistance, strong thermal
conductivity, good corrosion resistance and long service
life. In the process of high temperature operation, the
coefficient of thermal expansion is small, and it has
certain strain resistance to quench and heat. It has strong
corrosion resistance to acidic and alkaline solutions and
excellent chemical stability. It does not take part in any
chemical reactions in the smelting process. The inner wall
of graphite crucible is smooth, and the melted liquid metal
is not easy to leak and adhere to the inner wall of
crucible, which makes the liquid metal have good fluidity
and castability. In metallurgy, casting, machinery,
chemical industry and other industries, it is widely used
in the smelting of alloy tool steel and the smelting of
non-ferrous metals and their alloys.
Product Specification
Brandname diameter(mm) Height(mm) Upper bore inner
diameter(mm) Bottom bore(mm) lnternal height(mm)
SY-I **0 ***0 **0 **0 ***0
**0 ***0 **0 **0 ***0
**0 ***0 **0 **0 ***0
Description: S stands for plastic forming mode, Y stands
for abnormal shape, l for melting copper, preciousmetals
and rare earth alloy crucibles. The size and index
requirements of crucible can be customized accord-ing to
customer's requirements of furnace type pedestal.
Main Indicators
ltems Unit Index
Bulk density (≤) g/cm3 1.*4
Specific resistance (≥) u·m 5.5
Flexural strength (≤) Mpa *1.5
Elasticity(≥) Gpa *4
Coefficient of thermal expansion (≥) ***6/℃ 1.5
Ash (≥) % 0.2
Frequency of use (≤) T *0
