How to maintain the crucible used in the furnace lining material? What processes need to be paid attention to!

How to maintain the crucible used in the furnace lining material? What processes need to be paid attention to!

There are many types and specifications of crucibles, which are not limited by production scale, batch size and variety of smelting materials in application. They can be arbitrarily selected, have strong applicability, and can ensure the purity of smelting materials. The following is the introduction of furnace lining material manufacturers. !

1. In the initial stage of crucible use, the sintering layer is thin, and high power transmission should be avoided as much as possible, resulting in excessive electromagnetic stirring, which will damage the furnace lining. Usually, the first 48h does not exceed 60-80% of the total power of t.

2. When feeding, try to avoid the material from hitting the crucible and damage the crucible. Especially after the cold furnace, the strength of the crucible is extremely low. large, resulting in a furnace accident.

3. After the furnace sintering is completed, the operator is required to have a strong sense of responsibility, always pay attention to checking the working conditions of the furnace lining, and keep the whole system in good condition.

4. After the operation of the intermediate frequency furnace, no matter what the reason is, the cooling water system should be circulated for about 12 hours, and the temperature in the furnace should be lower than 200C, otherwise the furnace lining and induction coil will be damaged or even scrapped.

5. During operation or when the furnace is empty, the temperature of the crucible is still high. The opening times and time of the furnace cover should be reduced to reduce heat loss and rapid cooling of the furnace lining to produce cracking mosquitoes.

6. The normal production should be full furnace, and half furnace production is prohibited. To avoid cracks caused by excessive temperature difference.

7. During normal melting, it should be melted while feeding, and it is not allowed to re-feed after the molten iron has been dissolved. Especially if the scrap iron material is added too much, the molten iron level will fluctuate greatly, and the molten iron will easily penetrate into the unintended furnace lining above the liquid level. Causing accidental burnout.

8. The newly rammed furnace lining should be used continuously for at least 3-6 furnaces, which is conducive to the formation of a sintered layer with sufficient strength.