Structural steel shell for refractory-lined ladles in molten metal handling
A cylindrical or conical steel shell that serves as the primary structural containment vessel for refractory linings in industrial ladles used to transport, hold, and pour molten metals (typically steel, iron, or non-ferrous alloys) at temperatures exceeding 1500°C. It provides mechanical strength, supports refractory installation, and withstands thermal stresses during heating/cooling cycles.
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The steel shell provides structural integrity, contains the refractory lining, supports mechanical loads (including molten metal weight), and offers attachment points for handling equipment like trunnions and tilting mechanisms.
ASTM A516 steel offers good weldability, toughness at elevated temperatures, and resistance to thermal fatigue—critical for withstanding repeated heating/cooling cycles in molten metal applications.
Design features include expansion joints, stiffening rings, and controlled thickness transitions to accommodate differential thermal expansion between the hot refractory lining and cooler outer shell.
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