The unit energy consumption of crude steel made from ore through blast furnace/converter process is higher than 700kgce/t, and the energy consumption of steelmaking with oxygen converter is only "zero", but the energy consumption of blast furnace and coking process is high. It is also a big polluter of the environment.HORIZONTAL ROTARY ANGEL METAL BAND SAW MACHINE CH-300S In contrast, the energy consumption per ton of crude steel produced by electric furnace smelting of scrap steel is only 270kgce/t, and the generation and treatment of pollution are far superior to the blast furnace/converter process.AUTOMATIC HORIZONTAL ROTARY ANGEL METAL BAND SAW MACHINE CH-300SA Electric furnace steelmaking using scrap steel as raw material has a short process and high productivity. The labor productivity of all employees is as high as 4000 t/(person·a), which is almost 3-4 times that of the blast furnace/converter process. The accumulation of a large amount of scrap steel in the society and the recycling of waste products.Pressureless Sintering of Silicon Carbide Ceramics The current is input into the power distribution system of the substation along the overhead high-voltage line from Dianguang, and then into the electric furnace transformer along the high-voltage cable through the power distribution device. The electric furnace transformer converts high-voltage electricity into low-voltage current and passes it to the graphite electrode, generating an arc between the electrode and the charge.Vacuum heat treatment of electrical pure iron
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Carefully check whether the grounding wires of temperature measuring instruments, thermocouples, and electrical equipment are intact. Check whether there are other workpieces in the furnace and whether the furnace bottom plate and resistance wire are intact. Whether the furnace door opening and closing mechanism is flexible, etc.Vacuum Furnaces Leaks and Detection Techniques Turn on the power. After a few seconds, the circuit starts to work and the signal light turns on. Place the adjustable thermometer millivolt meter at the required scale. The electric furnace is heated and the constant temperature is automatically maintained.Process optimization of alumina ceramic sintering technology ③Heating should be carried out step by step for the first time, that is, 20-200℃ for 3 hours, 200-400℃ for 3 hours, and 400-600℃ for 2 hours.Atmospheric Pressure and Vacuum Sintering of High Purity Dense MgO Ceramics ④The loading and unloading of workpieces must be done without power. When loading the furnace, do not throw workpieces with force to avoid damaging electric heating elements, furnace bottom plates, etc.; it is strictly prohibited to load wet workpieces into the furnace to avoid breaking the refractory bricks on the furnace wall; cylindrical-grinding the workpieces and electric heating elements heated in the furnace should be kept at 50-50°C. 7Omm distance; workpieces should be placed neatly and not stacked too high to avoid damaging the thermowell.