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中频炉的加热原理
中频炉主要由电源、感应圈及感应圈内用耐火材料筑成的坩埚组成。坩埚内盛有金属炉料, 相当于变压器的副绕组, 当感应圈接通交流电源时, 在感应圈内产生交变磁场, 其磁力线切割坩埚中的金属炉料, 在炉料中就产生了感应电动势, 由于炉料本身形成一闭合回路, 此副绕组的特点是仅有一匝而且是闭合的。所以在炉料中同时产生感应电流, 感应电流通过炉料时, 对炉料进行加热促使其熔化。
中频炉利用中频电源建立中频磁场,使铁磁材料内部产生感应涡流并发热,达到加热材料的目的。中频炉采用 200-2500Hz中频电源进行感应加热,熔炼保温,中频炉主要用于熔炼碳钢,合金钢,特种钢,也可用于铜,铝等有色金属的熔炼和提温.设备体积小,重量轻, 效率高,耗电少,熔化升温快,炉温易控制,生产效率高。
Heating principle of induction melting furnace
The induction melting furnace is mainly composed of a power supply, an induction coil and a crucible made of refractory materials in the induction coil. The crucible contains metal charge, which is equivalent to the secondary winding of the transformer. When the induction coil is connected to the AC power supply, an alternating magnetic field is generated in the induction coil. Since the charge itself forms a closed loop, the secondary winding is characterized by only one turn and is closed. Therefore, induced current is generated in the charge at the same time, and when the induced current passes through the charge, the charge is heated to promote its melting.
The induction melting furnace uses an intermediate frequency power supply to establish an intermediate frequency magnetic field, which generates induced eddy currents inside the ferromagnetic material and generates heat, so as to achieve the purpose of heating the material. The induction melting furnace uses a 200-2500Hz intermediate frequency power supply for induction heating, melting and heat preservation. The induction melting furnace is mainly used for melting carbon steel, alloy steel, special steel, and can also be used for melting and heating of non-ferrous metals such as copper and aluminum. The equipment is small in size. , Light weight, high efficiency, low power consumption, fast melting and heating, easy control of furnace temperature, and high production efficiency.