Method for preparing vanadium-nitrogen alloy through laser coaxial powder feeding, reduction and nitridation

The invention belongs to the field of steel-making alloy new technology and application thereof, and discloses a method for preparing vanadium-nitrogen alloy through laser coaxial powder feeding and reduction nitridation, and the technological process comprises the steps of powder carrying gas feeding, laser irradiation, powder fusing, gas injection, casting roller ingot discharging and smoke dust recycling. According to the laser smelting reduction and nitridation method, energy is concentrated, the electric heating energy conversion efficiency is high, and energy is saved; and the vanadium oxide pellets are subjected to reduction and nitridation to form cast ingots, continuous smelting and coagulation casting operation is achieved through a casting roller crucible rotating method, the production time is short, and the production efficiency of the vanadium-nitrogen alloy is greatly improved. 本发明属于炼钢合金新技术及其应用领域，公开了一种激光同轴送粉还原氮化制备钒氮合金的方法，工艺流程为：送载粉气-激光辐照-粉体熔凝-气体喷吹-铸辊出锭-烟尘回收。本发明中激光熔融还原与氮化的方法能量集中，电热能量转化效率高，节约能源；且钒