Ferroalloy industry has experienced three periods: the blast furnace and electric large-scale development period. Many new varieties Buying silico-manganese, such as high-grade ferrosilicon, calcium silicon alloy, tungsten, iron, molybdenum, iron, low carbon ferromanganese and ferrochrome came into being. These varieties can not be produced in a blast furnace SiMn price, so the development of electric technology. Especially with the realization of silico-manganese, long-distance transmission of a large number of electric technology developed. Ferroalloy production technology development trend: Over the past twenty years, with the progress and development of the steel industry and science and technology, industrial production variety world ferroalloy smelting process, technology and equipment, energy saving, environmental protection, energy and resource recovery We have a rapid development and comprehensive utilization of breakthrough technologies.