重皮(double skin)，形状如贴膏药的钢锭表层重叠。钢锭浇注时开浇过猛，钢水在钢锭模底激荡，冷凝在模壁上形成盒框状钢壳。钢壳立刻因冷凝收缩而与模壁间产生空隙。
这种缺陷包括飞溅、波皱面以及重皮或折叠。
This kind defects include splashing, rippled surface, and laps or folds.
重皮。扎入基体金属表面、通常只有一端与基体金属相连的极薄的金属长条。
Sliver. An extremely thin elongated piece of metal that has been rolled into the surface of the parent metal to which it is attached - usually by only one end.
由于浇注速度掌握不好而引起的缺陷。这种缺陷包括飞溅、波皱面以及重皮或折叠。
Defects due to an unsatisfactory rate of teeming. This kind defects include splashing, rippled surface, and laps or folds.
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