The straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. The strength is generally higher than that of the straight seam welded pipe. However, compared with the same length of straight seam pipe, the length of the weld is increased by 30~100%, and the production speed is lower. So what are the processing methods?
1. Forged steel: a pressure processing method that uses the reciprocating impact force of the forging hammer or the pressure of the press to change the blank into the shape and size we need.
2. Extrusion: It is a processing method in which the steel is placed in a closed extrusion tube, and pressure is applied at one end to extrude the metal from the specified die-hole to obtain a finished product with the same shape and size. It is mostly used for the production of non-ferrous metals. material steel.
3. Rolling: A pressure processing method in which the steel metal billet is passed through the gap (various shapes) of a pair of rotating rolls, the cross-section of the material is reduced and the length is increased due to the compression of the rolls.
4. Drawing steel: It is a processing method in which the rolled metal billets (forms, pipes, products, etc.) are drawn through the die-holes to reduce the cross-section and increase the length. Most of them are used for cold work.
Post time: Oct-28-2022