Products Description :
Fine graphite powder is a kind of energy saving and environmental
protection material, using high-speed mill, Raymond mill, jet mill
and other advanced grinding equipment. It is mainly used in the
research of powder metallurgy, lubricating oil, grease, dry
battery, conductive coating, lubricating coating, scientific
research of the Commission of Science, Technology and Industry for
National Defense and scientific research institutions, civil
nuclear power, aerospace and aviation, strategic power interference
weapons, smokescreen shielding weapons, etc.
Products Details and Parameters :
Expandable graphite is a high-quality natural phosphor flake
graphite produced by our factory. It is a flexible graphite product
obtained by special modification treatment.
Granularity: 50 mesh 80 mesh 100 mesh -100 mesh -200 mesh -325 mesh
Expansion ratio: 100-400ml / g or 50-300 Times
Products Features :
Due to its special structure, graphite has the following special
properties:
1) High temperature resistance: The melting point of graphite is
3850 ± 50 ºC, and the boiling point is 4250 ºC. Even if it is
burned by ultra-high temperature arc, the weight loss is small and
the coefficient of thermal expansion is also small. The strength of
graphite strengthens with increasing temperature. At 2000 ºC, the
strength of graphite doubles.
2) Electrical and thermal conductivity: The electrical conductivity
of graphite is one hundred times higher than that of ordinary
non-metallic ores. Thermal conductivity exceeds metal materials
such as steel, iron, and lead. The thermal conductivity decreases
with increasing temperature. Even at extremely high temperatures,
graphite becomes an insulator. Graphite can conduct electricity
because each carbon atom in graphite only forms 3 covalent bonds
with other carbon atoms, and each carbon atom still retains 1 free
electron to transfer charge.
3) Lubricity: The lubricating performance of graphite depends on
the size of graphite flakes. The larger the flakes, the smaller the
friction coefficient and the better the lubricating performance.
4) Chemical stability: Graphite has good chemical stability at room
temperature, and is resistant to acid, alkali and organic solvents.
5) Plasticity: Graphite has good toughness and can be rolled into a
very thin sheet.
6) Thermal shock resistance: When used at room temperature,
graphite can withstand the drastic change of temperature without
damage. When the temperature changes suddenly, the volume of
graphite does not change much, and no cracks will occur.
Loading &Delivery:
25kg/500kg/1000kg pp bags or as your request
