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本刊从68年开始,陆续刊载了我国有关工厂、科研单位革命职工独立自主、自力更生大搞无芯工频感应电炉的经验,得到了铸造战线广大革命职工的重视。目前,无芯工须感应电炉已在我国获得了推广应用,设计、研究、生产和使用的技术水平日益提高,形势很好。为使同志们对国外无芯工频感应电炉的发展和技术水平有个概貌了解,根据手头资料,简要编写了这篇材料,供参考。—编者
Since 68, this magazine has successively published the experiences of independent revolutionary workers in factories and research institutes in self-reliance in promoting coreless power frequency induction furnaces, and gained the great attention of the revolutionary workers in the casting front. At present, coreless induction furnaces have been popularized and applied in our country. The technical level of design, research, production and use is increasing day by day. The situation is very good. To make comrades abroad coreless frequency induction furnace development and technical level has a general overview, according to the hand information, briefly prepared this material for reference. -editor