Gearbox smelting equipment selection
The smelting technology of the gearbox requires strict control, including chemical composition control, selection of smelting equipment, melting process, etc. There are generally two options for smelting equipment. One is the double smelting using cupola and induction furnace; the other is direct induction furnace. Melting. Each has its own characteristics, as long as the smelting process is reasonable, it can produce qualified gearbox products.
The double-linking can utilize the high-efficiency melting efficiency of the cupola to greatly improve the production efficiency. At the same time, the high-temperature superheating temperature in the cupola is used to refine the graphite of the original iron to eliminate the coarse genetic properties of the graphite and solidify the ductile iron. Providing more cores lays a good foundation. Therefore, duplex is more suitable for the production of pig iron as the main material.
Direct smelting with induction furnace, the production process is relatively simple and stable, coupled with the use of furnace carbonization process, therefore, it is more suitable for the production of a large number of scrap steel as the main material. Since a large amount of microcrystalline crystal embryos can be produced in the molten iron by carbon addition, it is a direct core of graphite precipitation in the future, so that the ductile iron structure can be refined.www.xihuafoundry.com