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Tundish insulating boards are disposable linings used in continuous casting processes to line tundishes, which are reservoirs for molten metal. By incorporating a specialized formula, these boards eliminate the need for lengthy preheating, leading to significant energy and refractory material savings. Their purpose is to facilitate the smooth flow of molten metal into ingot molds, preventing splashing and ensuring a consistent feed to the casting machine. This process also acts as a buffer for hot metal, regulates metal flow, and helps maintain cleanliness. The preparation method involves configuring raw materials, mixing and stirring them, and adding.