A flux recovery unit in the submerged arc welding (SAW) process is a system designed to collect and recycle unused flux material during and after welding. Submerged arc welding involves the use of a granular flux that covers the weld joint and the arc zone, protecting it from atmospheric contamination and stabilizing the arc. This flux partially melts to form slag, while the remaining unused flux can be recovered and reused, enhancing efficiency and reducing waste.