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Advantages of graphite materials

1.High thermal stability                                          2.High purity

3.Good thermal conductivity                                  4.High mechanical strength

5.High thermal conductivity                                   6.Good chemical stability

7. High heat shock resistance                                 8. Good lubricity

9.Strong corrosion resistance                                 10.Easy to process, strong plasticity

Graphite materials have unique comprehensive properties, which can meet most of the requirements of heating elements and heating systems in high

 temperature electric furnaces to achieve the best allowable state.

Why choose graphite material?

1. High mechanical strength: graphite heating elements have high mechanical strength, and when the knitting temperature rises to 2600°C, its mechanical strength will be further enhanced

   
   

2. Good thermal conductivity: The thermal conductivity of graphite heating elements not only exceeds that of steel and iron. Aluminum and other metal materials, and as the temperature 

increases, the thermal conductivity decreases. At a certain temperature, the graphite heating element is even in an adiabatic state, so it has heat insulation under high temperature conditions.

3.High temperature resistance: the melting point of graphite is 3850+=50°C, the boiling point is 4250°C, even if the ultra-high temperature arc burning, the weight loss is very small. The coefficient of thermal expansion is also very small. The strength of graphite increases with the increase of temperature, and at 2000°C, the strength of graphite is doubled.

4. Chemical stability: graphite has good chemical stability at room temperature, is not easy to react with other substances, can resist acid, alkali and organic solvent corrosion.

5. Special seismic performance: graphite heating elements can withstand drastic changes in temperature without damage at room temperature. When the temperature changes rapidly, the coefficient of thermal expansion is small, so it has good thermal stability, and cracks will not occur in the change of temperature.

6. Uniform structure: graphite heating elements have stable performance and uniform structure, especially the main advantages of isostatic pressed graphite materials as heating elements to achieve the best stable distribution.

7. Electrical conductivity: the allowable surface composite value of the graphite heating element is very large, about 40-60W/cm³, generally using tubular or plate elements, because the resistivity of the graphite material is not much change in temperature, the design of the heating element can choose the appropriate transformer.

8 Long service life: Used at high temperatures, graphite heating elements have a longer service life than metal or ceramic heating elements.

Due to the above advantages of graphite material, it has become the preferred heating material in vacuum furnace, monocrystalline silicon furnace, polycrystalline silicon ingot furnace, hydrogenation furnace and other heaters. If the graphite material is selected as the vacuum furnace heating chamber, it is used for the quenching and annealing of general steel parts, and is also suitable for high temperature brazing.

Powder metallurgy materials, ceramic materials sintering, melting and so on.

Over the years, our company is committed to serving major electric furnace factories at home and abroad, but also continue to provide high-quality products for end-use customers as well as commissioning and installation of graphite parts and technical support. In addition, our company can process all kinds of products according to user requirements.