Perhaps you've noticed Isostatic Graphite or Artificial Graphite. You think both of
them are special and incredible. Then let us know more about graphite.
As a few of us know, graphite is with its unique
nature. Isostatic Graphite is really a great
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 up to 3 thousand,
nine hundred degrees. Simultaneously, 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 continues to be extremely little. What‘s
more, its coefficient of thermal expansion is also extremely 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
can be doubled.
Secondly, graphite is using the feature of
conductivity. To be specific, graphite is with one hundred times greater
conductivity than that of common nonmetal ore. As a matter of reality, it‘s
thermal conductivity may be over that of steel, iron, lead as well as other
metal materials. But on the other hand, its thermal conductivity decreases
using the improve of temperature. Even in higher temperature, graphite can be
as insulator. Graphite can conduct electricity simply because each carbon atom
in graphite forms three covalent bonds with other carbon atoms. What‘s much
more, every carbon atom nonetheless retains 1 free electrons to charge.
Thirdly, grahite is with great 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 much better the lubrication
overall performance will be.
Fourthly, graphite is with great chemical
stability. Graphite has good chemical stability at space temperature.
Consequently, it is with acid, alkali and corrosion resistance to organic
solvents.
Now, let us discuss 1 application of graphite.
Graphite may be used as wear resistant
lubricating material. Usually speaking, graphite, within the mechanical
business, is often utilized as lubricant. As all of us know, the lubricating oil
can not be utilized 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 without
lubricating oil.
As for a lot of devices that transport the
corrosive medium, Graphite Heater is widely utilized
for creating piston cup, sealing ring and bearings. That's because when they
run, there is no have to add lubricant.
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