Perhaps you have seen Isostatic Graphite or Artificial Graphite. You believe both
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 great
instance. In other words, graphite has unique structure as a result it has its
special function.
Firstly,graphite is with higher temperature
resistance. Generally speaking, graphite‘s melting point can be up to 3
thousand, nine hundred degrees. Simultaneously, its boiling point may be up to
4 thousand, two hundred and twenty five degrees. Even the ultra higher
temperature arc ignition, weight loss of graphite is still very small. What‘s
more, its coefficient of thermal expansion is also extremely little. 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 using the feature of
conductivity. To be particular, graphite is with one hundred times higher
conductivity than that of general nonmetal ore. As a matter of reality, it‘s
thermal conductivity can be more than that of steel, iron, lead and other metal
materials. But on the other hand, its thermal conductivity decreases with the
increase of temperature. Even in high temperature, graphite can be as
insulator. Graphite can conduct electrical energy simply because every carbon
atom in graphite forms 3 covalent bonds with other carbon atoms. What‘s more,
every carbon atom nonetheless retains one free electrons to charge.
Thirdly, grahite is with great lubrication. To
become particular, its lubrication overall performance depends on the size of
graphite flake. In other words, the larger the flake or Graphite Block is, the smaller the
friction coefficient will be, and the better the lubrication overall
performance will probably be.
Fourthly, graphite is with great chemical
stability. Graphite has good chemical stability at room temperature.
Consequently, it's with acid, alkali and corrosion resistance to organic
solvents.
Now, let us discuss one application of graphite.
Graphite may be utilized as put on 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 used in the condition of high speed, higher temperature and
higher stress. But in contrast, graphite‘s wear-resistant material can be
utilized within 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 extensively
used 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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