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    Graphite molds can effectively resist the oxidation of graphite molds, and the chemical structure of graphite determines its high-quality properties

    Time:2022.11.22Browse:1

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    After the graphite mold is produced, it needs anti-oxidation treatment. Generally, an oily liquid antioxidant is used. The composition is high-temperature resistant nano-ceramic particles. Among them, its anti-oxidation effect is superior. After various types of graphite molds are impregnated with graphite mold anti-oxidation protective agents, the liquid can penetrate into the pores of graphite molds, forming a layer of about 0.02mm on the pores of graphite molds and the surface of graphite molds. Excellent anti-oxidation protective film, it is this protective film that can effectively isolate the air from direct contact with the graphite mold and cause oxidation reactions, thereby effectively delaying the oxidation of the graphite mold and prolonging the service life of the graphite mold by about 90%. The chemical structure of graphite determines its very good properties, and it has very good performance in various industries. The chemical structure of lower graphite determines its high-quality properties:


    1. Thermal conductivity and electrical conductivity: The thermal conductivity of graphite is three hundred times that of normal non-metallic minerals. Conductivity surpasses steel, iron, lead and other non-metallic materials. The conductivity increases with decreasing measurement, and even at extremely high measurements, graphite becomes an insulator.


    2. Chemical stability: Graphite has good chemical stability at room temperature, acid resistance, alkali resistance and corrosion resistance of inorganic solvents.


    3. Smoothness: The smoothness of graphite originates from the size of graphite scales, the larger the scales, the smaller the friction coefficient and the better the smoothness.


    4. Plasticity: Graphite has good toughness and can be ground into very thin slices.


    5. Tax shock resistance: Graphite can withstand violent changes in measurement without damage when used at room temperature. When the measurement changes gradually, the volume change of graphite is not large, and no cracks will occur.


    6. Low temperature resistance: The melting point of graphite is 3850+5 0C, and the boiling point is 4250C. Even if it is burned by an ultra-low temperature arc, the loss of weight is very small, and the thermal contraction coefficient is also very small. The strength of graphite increases with the increase in temperature, and at 2000°C, the strength of graphite doubles.

    Precautions during graphite mold cleaning!

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