The core induction furnace is divided into four parts according to the furnace cover, furnace, throat and groove, and the throat and groove are the key to directly affect the life and operating costs of the furnace, so it is necessary to choose the appropriate refractory material.

Furnace cover

Because it is not in contact with the molten metal liquid, the requirements of the furnace cover for refractory materials are relatively loose, and it should have the ability to resist high temperature radiation, good insulation performance, high bonding strength, and will not fall. It is generally composed of a thermal insulation layer and a thermal surface layer, that is, it is composed of lightweight thermal insulation materials and heavy refractory materials.

furnace

The service life of the furnace lining mainly depends on the reaction between the refractory and the erosion components in the slag, so the refractory is required to have good chemical stability under the action of high temperature metal liquid for a long time and can resist the erosion of metal liquid and slag. Furnace lining refractory material should have sufficient room temperature and high temperature strength, to withstand the strong erosion of high temperature metal liquid and resist the mechanical action of the furnace body; It should also have good volume stability, especially the iron inlet and outlet parts, without excessive expansion or contraction after high temperature or cooling.

inductor

The inductor includes the melting groove position, sealing material, smoothing material and isolating material.

Groove: The core furnace is the metal liquid induction heating through the groove, in the circulation flow to achieve the purpose of heating or heat preservation. Therefore, the dry vibration material is required to withstand high temperature for a long time without softening, has good erosion resistance and corrosion resistance, has good chemical stability and high strength.

Sealing material: It is required to be the same or similar to the trench material, and has high fire resistance and appropriate low and high temperature strength.

Smoothing material: requires a small critical particle, high fire resistance, good spreadability.

Isolating material: It is required to have high fire resistance, prevent the butt surface from sintering together, and ensure that the butt surface does not leak metal liquid.

Hubei Anaijie is a professional refractory lining material manufacturers, specializing in the production of dry punching materials, casting materials, refractory materials, welcome new and old customers to inquire.