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What about induction smelting?
Source：本站 Time：2021/8/18 16:47:38 frequency：
Induction melting is a metallurgical process in which the heat generated by the electromagnetic induction and electrothermal conversion of materials is used as a heat source to melt metals.
Because the main equipment is induction furnace, also known as induction furnace melting. The characteristics are that there is no carbonaceous electrode and high temperature region under the arc, and no reaction occurs between carburizing and inhaling dissociated gas in the smelting process. The electromagnetic stirring of alternating magnetic field can make the temperature and composition of the metal liquid uniform and remove the gases and inclusions in the metal. The heat of electromagnetic induction and electrothermal conversion is generated in the metal, which can reduce the burning loss of volatile and oxidized elements. Power adjustment is simple, furnace temperature is easy to control, easy to achieve the vacuum or special atmosphere melting process. The disadvantage is that the temperature of molten slag covering the surface of molten metal is low and it is difficult to play the refining role of molten slag. According to the power supply frequency of the furnace is divided into high frequency (10 ~ 300 KHZ), medium frequency (0.15 ~ 10 KHZ) and power frequency (50 or 60 KHZ) induction furnace three; According to the structure characteristics of the furnace is divided into a core (melting groove type) and no core (crucible type) induction furnace two. The core induction furnace can reduce the magnetic leakage due to the iron core, can improve the power factor and electric heating efficiency, but the melting temperature is low, and is suitable for cast iron, non-ferrous metal smelting.
Because the main equipment is induction furnace, also known as induction furnace melting. The characteristics are that there is no carbonaceous electrode and high temperature region under the arc, and no reaction occurs between carburizing and inhaling dissociated gas in the smelting process. The electromagnetic stirring of alternating magnetic field can make the temperature and composition of the metal liquid uniform and remove the gases and inclusions in the metal. The heat of electromagnetic induction and electrothermal conversion is generated in the metal, which can reduce the burning loss of volatile and oxidized elements. Power adjustment is simple, furnace temperature is easy to control, easy to achieve the vacuum or special atmosphere melting process. The disadvantage is that the temperature of molten slag covering the surface of molten metal is low and it is difficult to play the refining role of molten slag. According to the power supply frequency of the furnace is divided into high frequency (10 ~ 300 KHZ), medium frequency (0.15 ~ 10 KHZ) and power frequency (50 or 60 KHZ) induction furnace three; According to the structure characteristics of the furnace is divided into a core (melting groove type) and no core (crucible type) induction furnace two. The core induction furnace can reduce the magnetic leakage due to the iron core, can improve the power factor and electric heating efficiency, but the melting temperature is low, and is suitable for cast iron, non-ferrous metal smelting.