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.Heat treatment process of gear vacuum carburizing and quenching 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.HORIZONTAL SCISSOR STRUCTURE MITER METAL BAND SAW MACHINE CS-280S 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.HORIZONTAL ROTARY ANGEL METAL BAND SAW MACHINE G4240X70Z 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.What needs to be done for heat treatment with vacuum oil quenching furnace?