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INDUCTION MELTING FURNACES
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PROPERTIES OF A GOOD LINING MATERIAL: |
In majority of installations, the melt melted in induction furnace are ferrous, having the melting point from about 11500 C in case of solf grey-iron to about 15400 C in case of low carbon steel. Alloying elements like manganese, chromium, nickel, molybdenum, titanium, tungsten, etc and their Ferro-alloys have high melting points. The normal operating temperature in an induction furnace is, therefore, from around 1350-14000 C in case of soft-gray iron to as high as 16500 C in case of low carbon steels, and even higher, up to 17000 C in certain specialty super alloys containing tungsten. The lining material has to be, therefore, some form of refractory which can withstand such temperature. |
In addition to the refractoriness, the lining material should possess many other properties to qualify as a good lining material. These are listed below. |
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