Due to the malleability of niobium material, it can be cold forged, rolled, punched, pulled, spun, extruded, bended and other process.
Heat process should be operated in a vacuum or protected environment.
Heat treatment process should be taken in vacuum and below 1100-1200°C. Time of heat preservation is determined by the quantity and thickness of materials. niobium foil can not be stacked when recrystallization annealing.
Surface treatment: shutter grinding wheels are usually used to remove surface peeling, scratches and other defects, and then non-woven abrasive cloth is used to mechanically polish scratches on the surface to make the surface uniform.
Cutting and grinding performance: to reduce the phenomenon of adhesion, extrusion and surface roughness in cutting, coolant should be used.
The common welding methods are tungsten electrode argon arc welding, laser welding, electron beam welding, diffusion welding and brazing.
Niobium parts have many different shapes such as niobium tube, niobium bend, niobium flange.
