Maybe you have seen Isostatic Graphite or Artificial Graphite. You think each of
them are unique 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 good
instance. In other words, graphite has unique structure consequently it has its
unique feature.
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 as much as 4
thousand, two hundred and twenty five degrees. Even the ultra high temperature
arc ignition, weight loss of graphite is still extremely small. What‘s more,
its coefficient of thermal expansion is also very small. In contrast, the
graphite strength increases using the increasing temperature. By the way, when
the temperature of graphite is two thousand, the graphite intensity can be
doubled.
Secondly, graphite is using the function of conductivity.
To be particular, graphite is with 1 hundred occasions greater conductivity
than that of general nonmetal ore. As a matter of fact, it‘s thermal
conductivity can be more than that of steel, iron, lead as well as 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 electricity simply because each carbon atom in graphite
types three covalent bonds with other carbon atoms. What‘s more, each carbon
atom nonetheless retains 1 totally free electrons to charge.
Thirdly, grahite is with good lubrication. To
become particular, its lubrication overall 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 much better the lubrication
performance will be.
Fourthly, graphite is with great chemical
stability. Graphite has great chemical stability at room temperature.
Consequently, it is with acid, alkali and corrosion resistance to organic
solvents.
Now, let us talk about one application of
graphite.
Graphite may be used as wear resistant
lubricating material. Generally speaking, graphite, within the mechanical
business, is frequently utilized as lubricant. As all of us know, the
lubricating oil can not be utilized within the condition of higher speed,
higher temperature and high pressure. But in contrast, graphite‘s
wear-resistant material can be utilized within 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 widely used
for making piston cup, sealing ring and bearings. That's simply because when
they run, there is no have to add lubricant.
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