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Specific steps for daily maintenance of intermediate frequency furnace

Author : Hongteng Time: 2022-04-28

The intermediate frequency furnace is the main tool for smelting metal now. The production efficiency of the intermediate frequency furnace is inseparable from the daily maintenance. The editor of Hongteng will introduce the daily maintenance of the intermediate frequency furnace to you.

1. Furnace lining

Before each start-up, observe whether there are cracks on the inner surface of the crucible. If the crack width is less than 2mm, it can continue to be used without repairing. Otherwise, it must be repaired before use.

When pouring molten steel, observe whether there are cracks at the junction of the side fireplace lining and the tap hole, and whether the furnace lining at the bottom of the furnace and the slag line is partially corroded. If cracks are found, repair them in time.

2. Induction coil

Appearance, check the insulation part of the coil once a month for bumps or carbonization, whether there are attachments on the surface, and whether the insulating backing plate is protruding. If any problems are found, deal with them in time.

Once a week, visually check whether the coil compression spring is loose and whether the rubber tube is scratched. Check the interface daily for leaks.

3. Furnace cover

Visually inspect the thickness of the refractory pouring layer in the furnace cover every day. When the thickness of the refractory pouring layer is 1/2, the furnace cover lining needs to be rebuilt.

4. Control cabinet inspection

Check the action of each indicator light bulb every day, blow it with a leather tiger, and blow it with nitrogen when conditions permit. Check the accessories weekly for damage and burnout, and clean the energized contacts once every six months.

The above is the introduction to the daily maintenance of the intermediate frequency furnace. It is also necessary to check the waterway and circuit of the electric furnace before starting the furnace. When starting up, it is strictly in accordance with the operating specifications. During the operation, it is also necessary to check whether the water output is unobstructed. Remember to remember after the shutdown. cut the power.

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Video of the use process of the melting furnace

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