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Green mortar, also known as chromite mortar, is a refractory material used as a paste in high-temperature applications. Composed primarily of alumina and chromite, it is essential for positioning and installing refractory components within the slide gate system and securing the tundish nozzle inside the tundish block wall. Green mortar plays a crucial role in sealing slide gate plates to prevent melt leakage during steel production.
A key ingredient in this mortar is chromite green powder, which enhances its fire resistance. Available in both powder and paste forms, the quality of the green mortar is critical, especially the water content, as it directly impacts performance. When paired with high-quality slide gate plates, this mortar allows for multiple uses of the slide gate system without the need for reopening.