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Control of pouring temperature of molten iron in induction melting furnace

Time:2021-03-14   Nums:3120

In the initial stage of induction melting furnace trial production. There have been serious sand sticking defects in some thick and large castings due to too high pouring temperature, which can only be scrapped because it can not be cleaned, resulting in a lot of losses. Traditionally, it is considered that the best way is pouring at low temperature. For a professional foundry, it is quite difficult to achieve this. The melting temperature of induction furnace is 40-60 ℃ higher than that of cupola. It is more difficult to control. Castings with different wall thickness and weight have different ideal pouring temperatures. It is impossible to achieve all appropriate pouring temperatures, but it is also impossible not to control them. Low temperature pouring of key castings (mainly thick and large parts) must be carried out Make sure. At present, the main way to cool down is to pour the package and let it stand. For 3.5 The temperature of molten iron can only drop about 3 ℃ per minute without covering the thermal insulation and slag accumulating material (the author's experience). The waiting time is too long to reduce the temperature greatly, which affects the production efficiency. It can only be combined with the ladle (that is, pouring this ladle of molten iron into another empty ladle). Through the ladle, the temperature of molten iron can be reduced rapidly, such as ignoring the low-temperature pouring Sand sticking will be a problem we must face.

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

induction melting furnace

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