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Knowledge: What is the role of coil red mud, what are the construction needs?

Category:Company news    time: 2020-06-20    Author:admin
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Designed for coreless induction furnace coil turns and coil inner surface coating protection material coil red mud, also known as coil mud, coil mud, with high strength, high density, high insulation characteristics. It plays the role of insulation, heat insulation and delaying coil deformation, and can effectively prevent the occurrence of coil turn short circuit; And in a certain period of time can block the penetration of metal liquid and other harmful substances. Coil red mud manufacturers for you lightning protection!

       High purity fused corundum material is selected as the main raw material, which has the characteristics of excellent construction performance, high strength and high wear resistance. The addition of organic fibers to the material greatly reduces its drying time. The material is red to distinguish it from the working lining color.

       Coil coating (red mud) function:

       1. Coil red mud plays the role of insulation, heat insulation and delaying coil deformation, effectively preventing the occurrence of short circuit between turns of the coil firing phenomenon

       2. The coil red mud forms a smooth sliding surface on the inner surface of the coil, so that the furnace lining can expand and contract freely when the cold and hot changes frequently, effectively prevent the generation of transverse cracks, and increase the safety factor of the electric furnace. And in a certain period of time can block the penetration of metal liquid and salt.

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The above information is provided by the coil red mud manufacturer


       Coil red mud construction:

       1. Hang a plumb hammer in the center of the furnace to check whether the coil is concentric at the bottom or other parts of the furnace body.

       2. When applying mud to the coil, use a trowel to trowel the material between the coil turns, and the perfect material is in place.

       3. Apply evenly to the inner surface of the coil. On the 10~15mm thick cement, so that the surface of the cement and the coil concentric.

       4. For the furnace with a lining ejector mechanism, the cement should be made into a structure with taper.

       5. Fill the gap between the bottom coil and the bottom of the furnace and the top coil and the support frame.

       6. When the red mud begins to cure, gently scrape the surface of the red mud with a wire brush to help dry it.

       7. When repairing the coil red mud, clean off all insulation materials on the coil red mud.

       8. After the construction is completed, dry for 8 hours naturally, and then dry at a temperature of 100~410°C with the method of external heat source. After the insulation material is completely dry, the furnace lining construction can be carried out.

       Attention:

       When drying the slurry, gas or electric furnace can be used to avoid direct contact with the flame of the slurry layer, avoid the use of insufficient combustion heaters such as spray guns, and prevent conductive impurities such as carbon ash from entering the slurry layer. Hot air baking is a good choice.

       Annaeger coil red mud manufacturers provide detailed construction sintering process for each specific furnace construction and sintering. For details or products suitable for your factory, please call the website directly.