Perhaps you've seen Isostatic Graphite or Artificial Graphite. You believe 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 great
instance. 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 up to three
thousand, nine hundred degrees. At the same time, its boiling point can be up
to 4 thousand, two hundred and twenty 5 degrees. Even the ultra high
temperature arc ignition, weight reduction of graphite is still very small.
What‘s much more, its coefficient of thermal expansion can also be extremely
little. In contrast, the graphite strength increases with the increasing
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 1 hundred times greater
conductivity than that of common nonmetal ore. As a matter of fact, it‘s
thermal conductivity may be over that of steel, iron, lead as well as other
metal supplies. But around the other hand, its thermal conductivity decreases
using the increase of temperature. Even in high temperature, graphite can be as
insulator. Graphite can conduct electricity because every carbon atom in
graphite types three covalent bonds with other carbon atoms. What‘s more, each
carbon atom nonetheless retains one totally 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 bigger the flake or Graphite Block is, the smaller sized
the friction coefficient will be, and the better the lubrication performance
will be.
Fourthly, graphite is with good chemical
stability. Graphite has good chemical stability at space temperature.
Consequently, 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 often utilized 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 can be used in the
temperature of two hundred to two thousand degrees and without lubricating oil.
As for many devices that transport the corrosive
medium, Graphite Heater is extensively
utilized for creating piston cup, sealing ring and bearings. That is because
once they run, there's no need to add lubricant.
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