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According to the type of industrial electric furnace, furnace covers can be divided into electric furnace covers, well furnace covers, tempering furnace covers, annealing furnace covers, heating furnace covers, spheroidizing furnace covers, carburizing furnace covers, nitriding furnace covers, and vacuum furnace covers.

The lining of the furnace cover is commonly made of refractory fibers. The structural form of the furnace cover can be an integral hanging type, an integral horizontal rotating type, an integral horizontal movable type, a split upper rotating type, and a split water sliding type. The furnace cover can be operated manually or driven by power.

A hot air circulation fan is installed on the cover of the well type tempering furnace, and it is necessary to ensure insulation between the fan shaft and the furnace cover to prevent heat loss. Large or heavier furnace covers require the design of electric or hydraulic lifting devices. The small furnace cover is made manually using the lever principle, and when the furnace cover is closed, the self weight of the furnace cover is used to achieve a sealing effect.

There should be good sealing between the furnace cover and the furnace can of carburizing furnace, nitriding furnace, vacuum furnace and other furnace types. The outer edge of the vacuum carburizing furnace cover should be sealed with a water-cooled rubber ring. The furnace cover with a fan spindle that needs to be sealed must be made into a piston ring seal, labyrinth seal, or sealed motor seal. Sealed electric motor refers to the motor being connected to the fan shaft and directly pressed onto the furnace cover to achieve complete sealing. Set up bolt interfaces around the furnace to achieve a sealed state between the furnace body and the furnace cover.

In addition, the furnace cover needs to reserve thermocouple holes, drip holes, exhaust holes, suction holes, inlet holes, etc. according to the furnace type and design requirements. Chengchi Industrial Furnace specializes in providing various furnace types with matching furnace covers, as well as increasing and transforming the functions of furnace covers. Welcome to call for consultation!