Dry vibrating material is a refractory mixture without adding water and liquid binder. It can form a dense and uniform whole under the action of vibration force. It is an amorphous refractory material that generates strength by thermosetting binder or ceramic sintering agent when heated. This material is constructed on the site of use by vibration. The construction is simple and the construction period is short. It does not require maintenance and baking. It can be directly heated up quickly to sinter the working layer and put into use.
Magnesium calcium dry vibrating material for tundish is a refractory material commonly used for the lining of steel continuous casting tundish, with excellent corrosion resistance, thermal stability and construction convenience. In the application of continuous casting tundish, magnesium calcium dry vibrating material can be used continuously for 10-30 hours, which is 20%-50% longer than the life of traditional castables.
Excellent corrosion resistance - High MgO content gives the material excellent resistance to alkaline slag corrosion, while CaO reacts with sulfur and phosphorus impurities in molten steel to generate low-melting point compounds, effectively purifying molten steel, reducing inclusions, and improving steel cleanliness.
Strong thermal stability - the magnesium-calcium system has a low linear expansion coefficient and outstanding resistance to rapid cooling and heating, which can reduce cracks in the lining caused by temperature fluctuations and extend its service life.
Strong thermal stability - the magnesium-calcium system has a low linear expansion coefficient and outstanding resistance to rapid cooling and heating, which can reduce cracks in the lining caused by temperature fluctuations and extend its service life. Highly efficient and environmentally friendly construction - the dry vibration process is adopted, and there is no need to add water for mixing. It is directly vibrated and compacted. The construction time is short, no harmful gas is released, and it is highly safe. After baking, a ceramic bonding layer is quickly formed, which significantly shortens the production preparation cycle.
Magnesium-calcium dry vibrating material has become the mainstream choice for the lining of modern continuous casting tundishes due to its advantages of corrosion resistance, purification of molten steel and high construction efficiency, especially suitable for the production of high-clean steel grades. However, its moisture resistance and construction process need to be strictly controlled. In the future, the water resistance and thermomechanical properties can be further improved through material modification.