Niobium and niobium alloy seamless tube hot rolling production and processing method

The invention discloses a niobium and niobium alloy seamless tube hot rolling production and processing method. The method comprises the steps of material selection, centering hole machining, protective coating application, heating, punching, tube rolling, sizing, cooling, straightening, sawing, sand blasting, nondestructive inspection and manual checking, packing and storage. The sealed protective coating protecting technology is adopted, the online hot rolling molding technique characterized in small deformation and low rolling speed is adopted, and rolling temperature and speed are strictly controlled. The method is short in process and high in efficiency, the utilization rate of materials is increased, cost is reduced, and the method accords with the idea of saving energy and protecting the environment. The refractory metal niobium and niobium alloy is machined into a seamless tube, which is the first case in hot rolling and refractory metal deformation processing and has profound significance. 本发明公开了种铌及铌