News

Learn more about our dynamics

Home > 
  • News
  • >
  • Industry Dynamics
  • Company News Industry Dynamics

    What are the characteristics of high pure graphite accessories molding graphite?

    Time:2023.04.18Browse:1

    Share:


    Graphite is a kind of homogenous alien body for carbon. It is gray -black, opaque and solid. The density is 2.25 grams per cubic centimeter, the melting point is 3652 ° C, and the boiling point is 4827 ° C. The chemical properties are stable, corrosion -resistant, and it is not easy to react with drugs such as acid and alkali. Burning carbon dioxide in oxygen at 687 ° C. Oxidation can be oxidized by strong oxidatives such as concentrated nitrate and potassium hydanol. It can be used as an anti -wear agent and lubricant. High purity graphite is used as a neutron decelerator in the atomic reactor. It can also be used to manufacture crickets, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, electric arc furnaces, and arc furnaces, and electric arc furnaces, electric arc furnaces, and arc furnaces, and electric arc furnaces. Arc lights, pencils of pencils, etc.


    Due to its special structure, graphite has the following special nature:


    (1) High temperature resistance


    The melting point of graphite is 3850 ± 50 ° C. Even after burning through the ultra -high temperature arc, the weight loss is small and the thermal expansion coefficient is very small. Graphite strength is strengthened with the temperature, and at 2000 ° C, the graphite strength doubles.


    (2) Conductive and thermal conductivity


    Graphite's conductivity is 100 times higher than ordinary non -metal ore. Thermal conductivity exceeds the graphite of metal materials such as steel, iron, and lead. The thermal conductivity decreases with the temperature increase, and even at a very high temperature, the graphite becomes the heating body. Graphite can conduct electricity because each carbon atom and other carbon atoms in the graphite only form three co -price bonds, and each carbon atom still retains a free electron to transmit charge.


    (3) Lubrication


    The lubrication performance of graphite depends on the size of the graphite scales. The larger the scales, the smaller the friction coefficient, and the better the lubrication performance.


    (4) Chemical stability


    Graphite has good chemical stability at normal temperature, which can corrode acid, alkali and organic solvents.


    (5) Plasticity


    Graphite is tough and can be crushed into thin slices.


    (6) Anti -heat shock


    Graphite can withstand the severe changes in the temperature at normal temperature without damage. When the temperature mutations, the volume of the graphite does not change much and does not cause cracks.

    The application of scales graphite in the coating industry

    Return to List

    Causes of inflated graphite powder

    Relevant News