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The utility model relates to a mobile bell-type furnace body, which can be used for heat treatment of metal materials, parts, such as normalizing, quenching, tempering, etc. . It is famous for energy saving, practicality and novelty. The furnace has the following characteristics: 1. The whole fiber furnace structure is adopted, which has excellent energy-saving performance, 30 ~ 38% energy-saving than the brick resistance furnace of the same specification, and the heating rate is increased by one time; 2. The furnace body is light and deft and can be removed through a hand-cranked device or an electric mechanism to expose a platform for loading and unloading. 3, the use of furnace moving, easy equipment maintenance and repair, improve furnace life. 4. The bell type electric furnace can be used alternately in more than one bell, which can increase productivity and save investment. 5. The electric furnace is equipped with hot air circulation device and air guiding system, which can make the temperature of the furnace uniform and the work piece heated evenly. 6. Large loading capacity, easy installation, energy saving, safe and reliable operation. 7. The electric furnace adopts all-fiber structure to improve the heat preservation performance of the furnace body and reduce the weight of the furnace cover. 8, cover lifting and moving, double furnace seat turn heating work.

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