The surface and inner qualities of aluminum alloy ingot by electromagnetic casting (EMC) have been investigated and compared with those of the direct casting (DC) one.
分析了电磁铸造铝合金铸坯的表面和内部质量，并与普通连续铸造铸坯进行了对比。
During ingot casting, control of casting speed is an important measure to improve the surface and inner qualities.
铸锭时控制钢液的注流速度，是改善和提高钢锭表面和内部质量的重要工艺措施。
The methods to improve the quality of the surface of extrusion materials by removing the defects on the surface layer of casting ingot are reviewed in this paper.
本文综述了清除铸锭表层缺陷，以提高挤压材表面质量的方法。
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