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Important matters in medium frequency induction furnace

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Important matters in medium frequency induction furnace

2019-10-28

Intermediate frequency transformer

Because of its large volume and complex operation, the equipment of medium frequency electric furnace involves a lot of knowledge. Today, I'd like to introduce three important precautions about the equipment of medium frequency electric furnace.

1. Intermediate frequency electric furnace equipment collar.

In the process of charging and slagging, the collar of medium frequency electric furnace equipment should be often bumped and easily damaged. It is very important to protect it. It is a better measure to add a shape following protection ring made of steel plate on the edge of medium frequency electric furnace equipment. The thickness of the steel plate is 5-10 mm, and the diameter of the inner ring is 10-20 mm smaller than that of the furnace. It can be cut from the whole steel plate or welded. In order to avoid the displacement of the protective ring during charging, three steel plates can be welded outside the furnace mouth brick of the medium frequency electric furnace equipment to fix the position of the protective ring.

2. Furnace condition.

The smelting personnel of medium frequency electric furnace equipment must pay attention to the erosion and crack condition of furnace lining. In the middle and later period of furnace lining service life, the smelting condition shall be observed from time to time to watch the melting power, current and turnover of molten iron of medium frequency electric furnace equipment. If necessary, the molten iron shall be emptied and stopped for inspection.

3. Furnace cover.

The use of furnace cover of medium frequency electric furnace equipment is very important for medium frequency electric furnace equipment. Some manufacturers do not pay attention to the use of furnace cover of medium frequency electric furnace equipment, or even discard the furnace cover, which is wrong. When opening the furnace, cover the furnace cover, which can not only prevent heat loss, accelerate the melting of the furnace charge, but also avoid the splashing of molten iron during the melting of the charge; when shutting down the furnace, cover the furnace cover, which can keep the temperature of the lining material slow, so as to avoid cracks.

Here are three parts of the furnace collar, furnace condition and furnace cover, which we need to pay attention to in the process of using medium frequency electric furnace equipment.

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