Manufacturing method for pressing powder into welded ring

The invention provides a manufacturing method for pressing powder into a welded ring. The method comprises the following steps of 1) sieving; 2) mixing powder; 3) performing thermal treatment and sieving; 4) pressing; 5) sintering. The method is less in processing steps, free from repeated wire drawing and annealing processes, capable of manufacturing the welded ring at a time, high in welding efficiency and production efficiency and high in welded ring yield.