Perhaps you have seen Isostatic Graphite or Artificial Graphite. You believe each
of them are unique and incredible. Then let us know 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 as a result it has its
special feature.
Firstly,graphite is with high temperature
resistance. Generally speaking, graphite‘s melting point can be up to 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 high
temperature arc ignition, weight loss of graphite continues to be very little.
What‘s more, its coefficient of thermal expansion is also very small. In
contrast, the graphite strength increases using the growing temperature. By the
way, when the temperature of graphite is two thousand, the graphite intensity
may be doubled.
Secondly, graphite is with the function of
conductivity. To be particular, graphite is with one hundred times higher
conductivity than that of common nonmetal ore. As a matter of fact, it‘s
thermal conductivity may be more than that of steel, iron, lead as well as
other metal supplies. But around the other hand, its thermal conductivity
decreases with the increase of temperature. Even in higher temperature,
graphite may be as insulator. Graphite can conduct electricity because each
carbon atom in graphite forms 3 covalent bonds with other carbon atoms. What‘s
more, every carbon atom nonetheless retains 1 free electrons to charge.
Thirdly, grahite is with good lubrication. To be
specific, its lubrication 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 probably be, and also the better the lubrication
performance will probably be.
Fourthly, graphite is with great chemical
stability. Graphite has great chemical stability at space temperature.
Consequently, it is with acid, alkali and corrosion resistance to organic
solvents.
Now, let us talk about one application of
graphite.
Graphite can be utilized as put on resistant
lubricating material. Generally speaking, graphite, in the mechanical business,
is often utilized as lubricant. As all of us know, the lubricating oil can not
be used in the condition of high speed, high temperature and higher pressure.
But in contrast, graphite‘s wear-resistant material can be utilized 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 once
they run, there is no have to add lubricant.
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