Date: 2025/6/20
Category: Metallurgical encyclopedia terms
Views: 565
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The continuous casting bloom is rolled into rail-shaped blanks through two roughing mills, then conveyed to the universal rolling mill train for three-pass reversible rolling. This process undergoes 4 universal rolling passes and 2 edging passes to form the final rail (see Figure 2). The universal mill unit employs a computer closed-loop control system with hydraulic AGC for dynamic roll gap adjustment. Tension control system (TCS) technology ensures uniform deformation during continuous rolling, significantly enhancing dimensional accuracy and surface quality. The edger features an innovative mobile positioning design with dual grooves integrated into a single stand, functionally equivalent to two separate edgers. This compact configuration dramatically shortens the rolling line length, minimizes temperature drop, and maintains optimal finishing temperature within the process window, creating favorable conditions for subsequent heat treatment.
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