Isostatic Pressing Graphite Material

It is a new product developed in the world in recent 50 years, which is closely
related to today's high technology. It has the properties of high-temperature
resistance, corrosion resistance, high strength, good conductivity, and thermal
conductivity, self-lubrication, low coefficient of thermal expansion, and good
strength at high temperature. It is widely used in high-tech fields such as
machinery, chemical industry, electronics, aerospace, and nuclear industry.

Excellent properties of isostatic graphite material
01
Uniform particle size and good quality stability;

02
Excellent self lubrication, chemical corrosion resistance, high thermal
conductivity and thermal stability;

03
Sufficient mechanical strength and impact resistance;

04
Uniform structure, dense and strong antioxidant capacity;

05
Good isotropy, and the characteristics are independent of size, shape and
sampling direction;

06
It is easy to machine and can be processed into products with various geometric
shapes as required.

Main Uses of Isostatic Graphite

Heater for Czochralski monocrystalline silicon thermal field and
polycrystalline silicon ingot furnace

In the thermal field of Czochralski monocrystalline silicon, there are about 30
kinds of isostatic press graphite components, such as crucible, heater,
electrode, heat insulation shield plate, seed crystal holder, the base for
rotating crucible, various round plates, heat reflection plates, etc. Among
them, 80% of isostatic graphite is used to manufacture crucibles and heaters.

In the manufacturing process of the polycrystalline silicon wafer of the solar
cell, polycrystalline silicon fragments must be melted and cast into a
polycrystalline silicon square ingot. The heater of the ingot furnace needs to
be made of isostatic pressure graphite.

Atomic energy industry

Nuclear fission reactor (high-temperature gas-cooled reactor): graphite is a
moderator and excellent reflector of neutrons;

Nuclear fusion reactor: graphite material with good thermal conductivity and
high mechanical strength is used as wall material facing the plasma.

EDM electrode

EDM with graphite or copper as the electrode is widely used in metal molds and
other processing fields.

Graphite crystallizer for non-ferrous metal continuous casting

Isostatic pressing graphite has become the main material for making
crystallizers because of its good properties in heat conduction, thermal
stability, self-lubrication, anti-wetting, and chemical inertia.

Other uses

Isostatic graphite is also used to make sintering molds of diamond tools and
cemented carbide, thermal field components of optical fiber wire drawing
machine (heater, insulating cylinder, etc.), thermal field components of vacuum
heat treatment furnace (heater, bearing frame, etc.), heat exchanger,
mechanical seal components, piston ring, bearing, rocket nozzle, etc.

As one of the most reliable graphite products suppliers, Zhongtai graphite
provides graphite raw material, highly oriented pyrolytic graphite, die formed
graphite rings and etc. Want to know more? Please contact us.

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