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赞成和反对头部保温的上小下大钢锭模的争论,自这种模子问世以来就一直进行着。这种争论要在这次会议上永久地解决看来也是不可能的。因此,我不是企图来证实某一观点,而是力求阐述我们的结论,以强调在采用上小下大钢锭模时应当采用的那些有明显效果和尚无明显效果的措施。勿庸置疑,人人都希望有这样的头部保温系统,即能在最短时间内装配起来的、不要求额外措施即可当作保温帽用的、遗留下最少碎片的、开坯收得率超过80％的和生产出冶金上无缺陷
The controversy over the upper and lower ingot molds in favor of and against the heat of the head has been going on since such molds came into existence. It seems unlikely that such a debate will be resolved permanently at this meeting. Therefore, rather than trying to confirm one point of view, I sought to elaborate our conclusion to emphasize the obvious and unobvious measures that should be employed in the upper and lower large ingot molds. Undoubtedly, everyone wants a head warming system that can be assembled in the shortest amount of time and can be used as a heat-preserving cap without additional measures, leaving the least scrap, Over 80% and produce metallurgically flawless