连铸生产过程中产生的氟主要来源于保护渣。氟的存在除涉及地球环保问题外 ,对连铸本身和设备也有不良的影响 ,因此连铸工艺采用无氟技术是必要的。但是 ,由于结晶器对坯壳的传热控制时不可避免地需要使用枪晶石 ,因此无氟问题一直没有得到解决。连铸无氟技术是以保护渣的最佳 Fluoride produced in the continuous casting process mainly comes from mold fluxes. In addition to the existence of fluorine in addition to the global environmental issues, the continuous casting itself and equipment also have an adverse effect, so continuous casting process using fluorine-free technology is necessary. However, the fluorine-free problem has not been solved due to the inevitable need to use gunite for the heat transfer control of the mold to the shell. Fluoride-free casting technology is the best mold powder