Selection of Furnace Lining Material and Analysis of Factors Effectively Improving the Life of Electric Furnace

Now there are more and more companies and businesses selling furnace linings, and prices are emerging one after another. How to identify the quality of furnace linings, and how to choose furnace linings have become problems faced by foundry companies, which are generally tested and used, but this is invisible. The cost and risk of the added test. The effect of the furnace lining cannot be shown immediately.

When using an induction furnace, the key is to select suitable furnace lining materials, and pay attention to ramming the furnace lining and each link in the smelting process. This can prevent accidents, improve furnace age, reduce construction times, save ramming, furnace dismantling and oven costs, and reduce overall costs. The production cost and the economic benefit of the enterprise are improved. The lining material is scientifically and reasonably proportioned, measured and weighed, and fully mixed and stirred. It is widely used in continuous operation and intermittent operation of ferrous metals in intermediate frequency electric furnace smelting. This material is premixed The dry ramming mixture can be directly put into use by the user, and the product is suitable for the melting temperature of 1850 degrees Celsius.

The quality of the knotting of the furnace lining material directly affects the service life. The knotting quality of the furnace lining is related to the sintering quality, and the sintering quality affects the performance. When the furnace lining is knotted, the sand material maintains uniform particle size, and the coarse and fine particles do not segregate. Layers are tightly combined, after knotting

The density of the furnace lining is high, and the strength of the sintered layer after sintering is high. The tendency of cracking on the furnace wall is relatively small. When the furnace lining is knotted, the vibration is not solid, which will cause the furnace lining to not be dense or partially loose. When the metal liquid pressure is large , leakage may occur. After finishing a layer of hand knotting, adding material without loosening the surface will lead to delamination, and transverse cracks will occur during application, which cannot be bridged. Oven and sintering If the temperature rises too fast in the process, the moisture in the charge will form many micropores on the furnace wall due to the rapid escape, and these micropores may lead to the penetration of molten metal and the adsorption of slag.

The life of the furnace lining is "3 points in the material, 7 points in the application". To effectively improve the life of the furnace lining, in addition to selecting the appropriate material for the furnace lining, implement a strict furnace building and baking operation process, formulate a scientific and reasonable smelting process, select New auxiliary materials, meticulous operation, careful protection and other work are all effective ways to improve the life of the furnace lining and achieve energy saving and consumption reduction.