Maybe you have seen Isostatic Graphite or Artificial Graphite. You think each of
them are unique and incredible. Then let us know much more about graphite.
As some of us know, graphite is with its unique
nature. Isostatic Graphite is really a good
instance. In other words, graphite has special structure consequently it has
its unique function.
Firstly,graphite is with high temperature
resistance. Generally speaking, graphite‘s melting point can be as much as 3
thousand, nine hundred degrees. Simultaneously, its boiling point can be as
much as four thousand, two hundred and twenty five degrees. Even the ultra
higher temperature arc ignition, weight reduction of graphite continues to be
very small. What‘s much more, its coefficient of thermal expansion can also be
extremely small. In contrast, the graphite strength increases with the
increasing temperature. By the way, when the temperature of graphite is two
thousand, the graphite intensity can be doubled.
Secondly, graphite is with the feature of
conductivity. To be specific, graphite is with 1 hundred occasions higher
conductivity than that of common nonmetal ore. As a matter of reality, it‘s
thermal conductivity may be more than that of steel, iron, lead and other metal
materials. But around the other hand, its thermal conductivity decreases with
the improve of temperature. Even in high temperature, graphite may be as
insulator. Graphite can conduct electrical energy simply because every carbon
atom in graphite forms three covalent bonds with other carbon atoms. What‘s
much more, every carbon atom nonetheless retains one free electrons to charge.
Thirdly, grahite is with great lubrication. To be
specific, its lubrication overall performance depends on the size of graphite
flake. In other words, the larger the flake or Graphite Block is, the smaller sized
the friction coefficient will be, and also the better the lubrication
performance will be.
Fourthly, graphite is with great chemical
stability. Graphite has great chemical stability at space temperature. As a
result, it's with acid, alkali and corrosion resistance to organic solvents.
Now, let us talk about 1 application of graphite.
Graphite can be used as put on resistant
lubricating material. Generally speaking, graphite, in the mechanical industry,
is frequently used as lubricant. As all of us know, the lubricating oil can not
be utilized in the condition of higher speed, higher temperature and high
stress. But in contrast, graphite‘s wear-resistant material can be utilized in
the temperature of two hundred to two thousand degrees and without lubricating
oil.
As for a lot of devices that transport the
corrosive medium, Graphite Heater is widely used
for making piston cup, sealing ring and bearings. That's because once they run,
there is no need to add lubricant.
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