Ferro Silicon Aluminum Alloy
In addition to being used as a deoxidizer, silicon-aluminum-iron alloys can also be used in the production of aerospace vehicles and automotive parts, which can greatly increase the service life of parts.
The main production methods of ferrosilicon are:
1. Alloy smelting by remelting method: Ferrosilicon, aluminum and steel scraps are reheated and melted together to smelt ferrosilicon and aluminum by remelting method. Calculate the raw material ratio based on the grade of the pre-produced ferrosilicon aluminum alloy and the smelting recovery rate of silicon and aluminum. Then break the ferrosilicon and other raw materials into small pieces, weigh and mix them, add them to the medium frequency induction furnace, and proceed under the protection of inert gas. Smelting and pouring into silicon-aluminum-iron alloy ingots.
10% Ferro Aluminum
2. Ferrosilicon is released from the furnace and aluminum ingots are added to the hot stamping method to produce ferrosilicon-aluminum alloy. According to the pre-refined ferrosilicon-aluminum alloy grade, the aluminum ingot is placed in a molten iron ladle that has just been poured with iron to preheat, and salts such as cryolite are added for protection. The molten ferrosilicon when it comes out of the furnace is poured into the molten iron ladle to melt the aluminum ingot to generate a silicon-aluminum ferroalloy, which is then cast into a silicon-aluminum ferroalloy ingot.
Industrial Grade Ferrosilicon Aluminum Alloy For Steelmaking
3. Production of ferrosilicon and aluminum alloys by carbothermal method. Production of ferrosilicon and aluminum alloys by carbothermal method uses silica, fly ash or bauxite (or other minerals containing Al2O3), steel scraps, etc. as raw materials, and coke or petroleum coke and bituminous coal as reduction materials. Agent, smelting ferrosilicon alloy directly in the electric furnace. The key to smelting is to make the furnace reach a temperature higher than that of ferrosilicon. When the temperature in the furnace is high, the aluminum content of the alloy is high; when the temperature in the furnace is low, the aluminum content of the alloy is also low. In order to achieve and maintain high temperatures in the furnace, a working voltage one level lower than that of ferrosilicon production, a larger pole center power and a higher current-to-voltage ratio are used, and non-conductive refractory bricks are used as the furnace lining.
