Location:Home>Company Info

Comparison of melting process between induction melting furnace and cupola

Time:2021-02-11   Nums:3006

Comparison of melting process between medium frequency melting furnace and cupola furnace

1) The adaptability to the product is different. Cupola can melt cast iron, including gray cast iron, nodular cast iron, vermicular cast iron, white cast iron and some alloy cast iron and ferroalloy. It can also be used to melt some stone. The tapping temperature of cupola can be controlled at about 15500c, which can meet the casting quality from several grams to dozens of tons. Induction furnace can melt all kinds of steel and nonferrous metals. As far as the production of iron castings is concerned, the adaptability of induction furnace to products is better than that of cupola. Induction furnace can smelt many kinds of high alloy cast iron, such as high chromium cast iron, but cupola can't.

2) The production capacity and adaptability of cupola and medium frequency electric furnace are different. At present, the melting rate of cupola is from 1t / h to 100t / h, and it can be less than 1t / h and more than 100t / h if needed in production. The melting rate of any kind of cupola can be adjusted within the corresponding range without affecting its normal melting. The adjustment range can be increased or decreased by 10% ~ 20%. Therefore, it can meet the needs of any production scale in terms of output. Because the comprehensive benefit of cupola increases with the increase of melting rate, and the comprehensive benefit of large capacity, long furnace life and external hot air cupola is higher, it is more suitable to use Cupola for mass production. At present, the single capacity of induction furnace for smelting can reach nearly 100 tons, which can meet the needs of large-scale production. However, the expansion of power installed capacity is often an obstacle for many enterprises. Therefore, induction furnace is more suitable for small and medium-sized production.

3) The adaptability to the production mode is different, cupola is continuous smelting, and the molten iron flows out continuously from the furnace with a certain flow rate, while induction furnace is intermittent smelting, which provides molten iron equal to the furnace capacity at intervals. It can be seen that cupola is more suitable for the production mode of parallel operation, and induction furnace is more suitable for the production mode of stage working system. The combination of multiple induction furnaces and the control of smelting and tapping sequence can also be used in parallel operation. However, the combination of multiple induction furnaces will increase the energy consumption, supporting facilities and floor area, and increase the burden of production management.

The melting mechanism of cupola and induction furnace is different, and their properties are different, so their adaptability to production is also different. The type (grade, output, machining requirements, etc.) and production mode of iron castings, the type and state of furnace charge, the level of smelting operation and production management level will put forward different requirements for the performance of smelting equipment. Only when the performance characteristics of smelting equipment are consistent with the production conditions, can the production process with high quality and efficiency, energy saving and consumption reduction, safety and environmental protection be realized, and the high technical and economic indicators be achieved.


  

Yiphee Electric Furnace Co.,Ltd specializes in producing induction furnace.Tel(WhatsApp):+86-13450756789, yiphee@yiphee.cn

Up:Repair method of copper tube leakage in induction smelting furnace

Next:Crucible life of induction melting furnace