Maybe you have seen Isostatic Graphite or Artificial Graphite. You believe both
of them are special and amazing. Then let us know much more about graphite.
As some of us know, graphite is with its special
nature. Isostatic Graphite is really a good
example. In other words, graphite has unique structure consequently it has its
special function.
Firstly,graphite is with higher temperature
resistance. Usually speaking, graphite‘s melting point may be as much as 3
thousand, nine hundred degrees. At the same time, its boiling point may be as
much as four thousand, two hundred and twenty five degrees. Even the ultra high
temperature arc ignition, weight reduction of graphite continues to be very
small. What‘s more, its coefficient of thermal expansion can also be very
small. In contrast, the graphite strength increases with the growing
temperature. By the way, when the temperature of graphite is two thousand, the
graphite intensity can be doubled.
Secondly, graphite is with the function of
conductivity. To become particular, graphite is with one hundred occasions
greater conductivity than that of common nonmetal ore. As a matter of reality,
it‘s thermal conductivity can be over that of steel, iron, lead and other metal
supplies. But on 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 because every carbon atom in graphite
forms three covalent bonds with other carbon atoms. What‘s more, every carbon
atom nonetheless retains one totally free electrons to charge.
Thirdly, grahite is with good lubrication. To become
specific, its lubrication performance depends upon 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 probably be.
Fourthly, graphite is with great chemical
stability. Graphite has good chemical stability at room temperature. As a
result, it is with acid, alkali and corrosion resistance to organic solvents.
Now, let us discuss 1 application of graphite.
Graphite can be utilized as wear resistant
lubricating material. Usually speaking, graphite, in the mechanical business,
is frequently used as lubricant. As all of us know, the lubricating oil can not
be used in the condition of higher speed, higher temperature and high pressure.
But in contrast, graphite‘s wear-resistant material may be used in the
temperature of two hundred to two thousand degrees and with out lubricating
oil.
As for many devices that transport the corrosive
medium, Graphite Heater is widely utilized
for creating piston cup, sealing ring and bearings. That's simply because when
they run, there is no have to add lubricant.
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