Time：2023.03.22Browse：1
1. Use as conductive materials
When using an arc furnace or mineral heat electric furnace to smell all kinds of alloy steel, iron alloys or production stones (carbonized calcium), and yellow phosphorus, strong current passes through carbonic electrodes (or continuous self -roasting electrodes -that is, electrode paste) or graphite electrode introduction The melting area of the electric furnace generates an arc, which translates the electrical energy into thermal energy, and the temperature increases to about 2000 degrees Celsius, so as to meet the requirements of smelting or reaction. Metal magnesium, aluminum, and sodium are generally removed with melting salt electrolysis. At this time, the anode conductive material of the electrolytes use graphized electrodes or continuous self -baking electrodes (anode paste, sometimes pre -baking anode). The temperature of melting salt electrolytic is generally below 1,000 degrees Celsius. The anode conductive material for producing alkaline (sodium hydroxide) and the salt solution electrolytic groove of chlorine gas is generally used for the anode. The furnace head head conductive material used to produce diamond (silicon carbide) is also a graphite electrode. In addition to the above -mentioned use, carbon and graphite products are widely used as a conductive material for the motor manufacturing industry as a sliding ring and brush. In addition, it is also used as a charcoal stick in dry batteries, an exploration light or arc -light carbon stick for arc. wait.
Second, use as refractory material
Because charcoal and capable of high temperature and good high temperature strength and corrosion resistance, many metallurgical furnace lining can be built with charcoal blocks, such as the bottom of the furnace, the furnace cylinder and the stove, the inside of the iron alloy furnace and the stone furnace. Line, the bottom and side of the aluminum electrolyte. Many valuable metals and rare metal smelting, molten graphite and other graphitic crickets used in molten quartz glass are also processed by graphized billets. The charcoal and graphite products used as refractory materials should not be used in the oxidized atmosphere. Because there is no such thing as charcoal or graphite quickly abolished at the high temperature of the oxidation atmosphere.
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2023-03-21
