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The purpose of impregnation is to fill the pores and open pores in the aggregate coke particles with impregnants such as molten pitch. After secondary roasting, the porosity or ventilation porosity is reduced, and at the same time, the billet’s Density, strength, modulus of elasticity, linear expansion coefficient, or can improve corrosion resistance and wear resistance, reduce gas and liquid permeability, improve conductivity, etc.
After various carbon raw materials are kneaded and formed, although they have a certain size and shape in appearance, they are only a whole formed by the physical bonding of the binder. The binder is not carbonized (or coking), and its mechanical strength and physical and chemical properties The performance is far from the performance of carbon materials. Therefore, the process of heating treatment must be carried out in the carbon production process. This process of heating the green body in the protective medium in the heating furnace at a certain heating rate under the condition of isolating air is called roasting.
The consumption of graphite electrodes is mainly related to the quality of the electrode itself, but also related to the steelmaking operation and process.
Chemical Equipment, Silicon Carbide Furnace, Graphite Furnace Special Carbon Chemical Equipment, Silicon Carbide Furnace, Graphite Furnace Dedicated Fine Structure Graphite Electrode and Square Brick Fine Particles...