Wenzhou Licheng Steel Industry Co., Ltd. is a modern enterprise specializing in the production of stainless steel pipes, pipe fittings and flanges. We have professional technical strength and advanced team management capabilities. Brands include: 304.304L.304H.321.321H.316.316L.317L.310S.347H, etc. Pipe size range (6mm-580mm)*OD(2mm-40mm)WT*4000-15000mm)Length.
Stainless steel seamless elbow is a kind of elbow pipe fitting used in the turning of the pipeline. It accounts for the largest proportion of all pipe fittings used in the pipeline system. Generally, seamless elbows with different material wall thicknesses will use different processes. The following Introduce several processing methods for stainless steel seamless elbows.
1. Rolling method: This method usually does not use a mandrel, and is suitable for the inner round edge of the thick-walled seamless elbow pipe. The core is placed inside the tube, and the outer circumference is pushed by rollers for round edge processing.
2. Stamping method: This method uses a tapered core on the punching machine to expand the pipe end to the required size and shape.
3. Bending method: This method is divided into three commonly used methods, namely stretching method, stamping method, and roller method. There are 3-4 rollers, 2 fixed rollers, and 1 adjustment roller, which are used to adjust the fixed roller distance. Finished pipe fittings are curved.
4. Bulging method: There are two methods for this method. One is to place rubber in the tube and compress it with a punch above to make the tube protrude. Another method is hydraulic bulging and filling the middle of the tube with liquid. The pressure bulges the tube into the desired shape, and this method is often used in the production of bellows.