Stamping elbow and straight seam elbow characteris

Stamping elbow and straight seam elbow characteristics

Stamping elbow is divided into cold stamping and hot stamping more stamping elbow material manufacturing technology, stamping elbow manufacture process than pushing elbow, quality is better than the former appearance, stamping elbow outer arc in the tensile state during forming, no other parts compensate excess metal, so the outer arc of wall thickness thinning is about 10% or so.

But because it is suitable for unit production and low cost, the manufacturing process of stamping elbow is suitable for small batch production of high pressure thick wall stamping elbow.

The common elbow forming machine is used to put the tube blank into the mold. After the upper and lower die is closed, the tube blank moves along the gap reserved between the inner die and the outer die to complete the forming process under the push rod. The elbow made by the internal and external die cold extrusion process has beautiful appearance, uniform wall thickness and small size deviation, so the cold extrusion production and manufacturing process is suitable for the production and manufacturing of thin-wall stainless steel elbow, and the internal and external die used in this process requires high precision; The wall thickness deviation of the tube billet is also strict.

Butt welding elbow is only the use of medium plate as raw material, after cutting, pressed into two elbow section half, and then butt welding along the groove, so produced elbow called butt welding elbow, it has two welds, our butt welding elbow usually DN600 caliber above, can process a large range of caliber, suitable for mass production.

Straight seam elbow typically straight seam steel pipe as raw materials, you can use the stamping production and processing, with the method of production of elbow, appearance beautiful, after simple processing can leave the factory, there's a weld straight seam pipe bend, applicable to small pressure of the pipe, straight seam pipe bend is cheap, production speed, and is love