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| negative taper of mold (【技】钢水浇人结晶器，与结晶器壁接触处冷却凝固生成坯壳，进而收缩脱离结晶器铜壁，形成气隙，抑制传热，延缓坯壳生长，甚至造成漏钢。为了减少气隙，通常将结晶器下口断面做得比上口小，故称之为结晶器倒锥度。) | |||
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