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roll-type in secondary cooling zone
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met.
二次冷却区辊子类型
(【技】二次冷却区通常设有夹辊(亦称支承辊)、拉辊和矫直辊。夹辊的功能是支承并夹持由结晶器下口拉出的铸坯,防止铸坯壳在钢水静压力的作用下产生鼓肚变形,同时引导铸坯沿弧形线辊道平稳运行。拉辊的功能是夹住并拉引铸坯在连铸机内运行。矫直辊的功能是将弯曲的铸坯矫直。)
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