Does anyone know what the cold rolling and hot rolling processes of stainless steel seamless elbows are like?
1. The cold rolling of stainless steel seamless elbows is also called cold drawing. The process flow is divided into: round tube billet, heating, perforation, heading, annealing, pickling, oiling (copper plating), multi-pass cold rolling (drawing), billet tube, heat treatment, straightening, water pressure test (flaw detection), marking, and warehousing.
2. The hot rolling of stainless steel seamless elbows is also called extruded seamless elbows. The process flow is divided into: round tube billet, heating, perforation, three-roller oblique rolling, continuous rolling/extrusion, tube removal, sizing/reducing, cooling, straightening, water pressure test (flaw detection), marking, and warehousing.
Among them, the round tube billet is the raw material for rolling stainless steel seamless elbows, which needs to be cut by a cutting machine to be a billet with a length of about one meter.