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结晶器负锥度
met.
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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