DTL-771型定碳定硫电弧燃烧炉(简称771电弧炉),它以电弧“点火”为条件,钢铁试样自身氧化放热为依据,大氧气流燃烧为主要手段。在几秒钟内,就可产生1600℃左右的高温,将钢铁试样燃烧。破除了各类燃烧炉主要依靠外部热源来燃烧试样的框框。在许多重要技术经济指标上,已赶上和超过管式高温炉和高频感应炉。 DTL-771 fixed carbon arc sulfur burning furnace (referred to as 771 electric arc furnace), which arc “ignition ” as a condition, the steel sample itself is based on the oxidation and heat release, large oxygen stream combustion as the main means. In a matter of seconds, a high temperature of around 1600 ° C can be produced, burning the steel sample. All kinds of burners to break the main rely on external heat to burn the sample frame. In many important technical and economic indicators, has caught up with and over the tube furnace and high frequency induction furnace.