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One of the main uses of graphite is the production of refractory
materials, including refractory bricks, crucibles, continuous
casting powder, mold core, mold, detergent and high temperature
resistant material. In recent years, two important changes in the
refractory industry is MgO-C brick is widely used in steelmaking
furnace lining, and the application of aluminum carbon brick in
continuous casting process. The graphite refractories and
steelmaking refractories are closely linked, the world steel
industry about consumption.
Because graphite has many excellent properties, it has been widely
used in metallurgical, mechanical, electrical, chemical, textile,
national defense and other industrial sectors. It can be used as a
refractory. The graphite products keep the original chemical
properties of the flake graphite and have a strong self lubrication
performance. The characteristics of graphite powder are high
strength, acid resistance, corrosion resistance and high
temperature resistance at 3000 degrees C and low temperature -204
degrees. Meanwhile, its compressive strength is greater than
800kg/Cm2, and its resistance to oxidation is 1%, and its
resilience rate is 15-50% (density 1.1-1.5) at 450 C air.
Therefore, graphite products have been widely used in metallurgy,
chemical industry, petroleum chemical industry, high energy
physics, space, electronics and so on.
Efficacy and advantages
First, graphite products have good adsorbability.
Carbon has a good adsorbability of carbon, so carbon is often used
as an adsorption material to adsorb water, odor and toxic
substances. We have done experiments, a few days before the
barbecue pan graphite used looks very clean, but in the
electromagnetic oven heating, will see the last barbecue oil and
the adsorption of harmful substances will slowly leaking, but don't
worry, with a clean kitchen paper to wipe clean can use.
Second, graphite products have good thermal conductivity, heat
transfer quickly, heat even, save fuel.
The baking pan made of graphite, the pot and so on are heated
quickly, and the cooked food is evenly heated, from inside to
outside, and the heating time is short, which is not only pure
taste, but also can lock the food's original nutrients. We have
done experiments. When we roast the meat with a graphite baking
pan, we just started the induction cooker to fight the fire. It
could warm up in only 20-30 seconds. When we start baking, we only
need to play on a small fire, so we can make use of energy saving.
Third, graphite products have chemical stability and anti erosion
ability.
Graphite has good chemical stability at normal temperature, and is
not affected by any strong acid, strong alkali and organic solvent.
Therefore, graphite products are rarely used for long term use, as
long as it is clean as clean as new.
Forth, graphite products have strong oxidation resistance and
reduction.
Products, especially graphite mattresses, can produce negative
oxygen ions after heating, so that the surrounding articles are
activated, maintaining human health, effectively preventing aging,
and making the skin full of luster and elasticity.
Fifth, graphite products are environmentally healthy, no
radioactive pollution, high temperature resistance.