带电渐进式下放电极系统矿热炉
Arc furnace with electric - progressive lower electrode system
德马克的铁合金电炉现在仍然是国际上比较先进的技术，结构坚固耐用，使用寿命长。从1987年开始我们对德马克电炉设备进行了消化和试制，并成功的运用到铁合金电炉的设计中，取得了令人满意的效果，使我国的铁合金电炉装备技术达到了国际先进水平。
近几年，通过对德马克电炉的消化、试制及移植，已掌握了德马克电炉的核心技术，使制造成本大大降低，并更加适合国内铁合金产品的生产。
Demarc ferroalloy electric furnace and still is fairly advanced technology with durable structure, and long service life. Since 1987 we made digestion and trials for Demarc electric furnaces, and successfully applied to the design of ferroalloy electric furnace, and achieved satisfactory results, so that China’s ferroalloy electric furnace equipment and technology has reached the international advanced level.
In recent years, through the digestion, trial and transplantation of Demarc furnace, we has mastered the core technology of Demarc electric furnace, the manufacturing cost is greatly reduced, and more suitable for the domestic ferroalloy production.
