First of all, the furnace lining is to use quartz sand and other materials to make a protective layer along the inner wall of the furnace to isolate the melting material and the induction coil in the furnace body to protect the induction coil.
Normally, we all know that in the process of using a high-temperature electric furnace, it is necessary to lining the furnace and sintering it.
What is important is that the knotting of the lining is an important prerequisite for ensuring the service life and safety of the intermediate frequency electric furnace. When hitting the lining of a high-temperature electric furnace, it should be noted that the force is evenly applied and sturdy, once finished, and once formed. After the furnace lining is finished, it needs to be baked at a low temperature for a long time to make it condense into a solid whole body, and has considerable strength, and can withstand the melt stirring and the feeding impact. When sintering, it should follow the method of low-power and slow-heating of the empty furnace, and continuously bake for more than 36 hours to fully solidify and solidify.
After the lining is knotted, how to operate correctly and reasonably is the key to prolonging the service life of high-temperature electric furnace and ensuring life safety:
1. Under normal circumstances, before using the high-temperature electric furnace and the experimental electric furnace, check whether the water flow in the water cooling system is smooth, whether the cooling water pressure and water temperature are normal, whether there is water leakage, and whether the hydraulic system can work normally.
2. Do this in operation, be careful not to bump and touch, one person to operate, one person to monitor, and it is strictly forbidden for people to enter the machine room to prevent electric shock. During the smelting process, the dry melt should be used, and the light-discharging should be carried out, and the material should be added frequently. When the melting of the molten material in the furnace reaches the demand, it should be poured out in time to avoid the increase of the lining loss by the high temperature;
3. Diligent observation, when it is found that there is redness on the outside of the furnace body of the high-temperature electric furnace, this is the harbinger of leaking the furnace. It is necessary to take measures such as shutting down the intermediate frequency power supply and pouring out the molten material in the furnace to avoid the occurrence of the leakage accident.
4. It should also be noted that when the lining is found to be very thin and cannot be used continuously, the old lining should be removed and the new lining should be replaced to prevent the leakage accident.
Last but not least - regular, correct and meticulous maintenance is an important guarantee for extending the service life and safety of high-temperature electric furnaces, and is also a necessary step to avoid hazards.
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