A refining furnace is an indispensable key equipment in modern metallurgical industry, mainly used for purifying metal materials, removing impurities, and adjusting their composition to improve the performance and quality of materials. Through processes such as high-temperature melting, chemical reactions, and physical separation, refining furnaces can transform raw metals into high-purity, high-strength, and highly corrosion-resistant special alloys, which are widely used in fields such as steel, non-ferrous metals, electronic materials, and aerospace. There are various types of refining furnaces, including arc furnaces, vacuum induction furnaces, and argon-oxygen decarburization furnaces, each of which targets different metal materials and process requirements. An efficient refining process not only significantly improves product quality but also reduces energy consumption and environmental pollution, meeting the requirements of green manufacturing and sustainable development. With the development of intelligent control and automation technologies, refining furnaces are evolving towards more precise, efficient, and environmentally friendly directions, becoming a core driving force for the upgrading of high-end manufacturing industries.