[日本《苏联技术速报》1974年245期4页报道]初轧的生产率随钢锭高度的增加而提高。但大的钢锭通常有内部裂缝和空腔等缺陷,滚轧会使这些缺陷进一步加深。乌克兰巴顿电气焊接研究所研究人员提出一种新的浇注法:在浇注过程中将电极插入钢坯轴心部分的一定深度,迅速浸没并立即拔出。这样形成的 [Japan’s Soviet Technical Bulletin, 1974, No.445, Issue 4, reported] Initial rolling productivity increased with increasing ingot height. However, large ingots usually have internal cracks and cavities and other defects, rolling these defects will deepen. Researchers at the Barton Institute of Electrical Welding in Ukraine proposed a new casting method: the electrode was inserted into the billet axis part of the casting depth, quickly immersed and immediately pulled out. This formed