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How to use carbon raiser in induction furnace?
Views: 896 Update date: Feb 18,2021

The demand for market development is determined according to the needs of manufacturers. There are many types of carbon raiser, so many manufacturers have to choose the suitable one for themself, but the choice of particle size must be certain, especially for graphite. 


In the general furnace smelting process, the granular carbon raiser below 0.2mm is very easy to lose. If it is added later, the loss will be even more severe. Now the more widely used in the market is the carbon raiser with a particle size of 1-5mm, and the use effect is also good. But it still depends on the needs of different manufacturers.


carbon raiser


Correct use of carbon raiser in induction furnace


1. Use an electric furnace above 5T, and the raw material is single and stable. Recommend the dispersed addition method. According to the requirements of carbon content and the proportion of ingredients, add the carbon raiser and metal charge together with the batch materials into the lower part of the electric furnace, one layer of metal charge and one layer of carbon raiser, the carbon absorption rate can reach 90%-95%. Do not slag when the carbon raiser is melted, otherwise it will be easily wrapped in the waste residue and affect the absorption of carbon.


2. Recommends the centralized addition method. When the molten iron is first melted in the furnace or a small amount of molten iron remains, add the carbon raiser to the surface of the molten iron at one time, and immediately add the metal charge to press all the carbon raiser into the molten iron to make it and molten iron fully contact. The absorption rate should be above 90%.


3. If a small intermediate frequency electric furnace is used, and the raw material contains pig iron and other high-carbon materials,  recommend fine adjustment of the carbon raiser. After the steel/hot metal is melted, the carbon content can be adjusted and can be added to the surface of the steel/hot metal. The product can be dissolved and absorbed by the eddy current stirring or manual stirring of the molten steel during electric furnace melting. The carbon absorption rate is about 93%.

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