Advantages of Electric Resistance Welding:1. Fast and efficient: Electric resistance welding is a fast and efficient method of welding two or more metal parts together. It typically involves placing the parts in contact with each other and passing an electric current through them, causing them to me

Hot-rolled steel is a commonly used material in construction and manufacturing due to its strength and versatility. However, like any material, it has its disadvantages:1. Shape Limitations: Hot-rolled steel sheets and plates typically have a rougher surface texture compared to cold-rolled steel. Th

Cold expanded of large diameter straight welded pipe is a use of hydraulic or mechanical means urging the steel pipe from the steel wall along the radially outward dilatation pressure molding process. Mechanical than hydraulic mode, the device is simple and more efficient use of steel in high-precis

Spiral welded pipes are produced through a continuous welding process where a long strip of steel is formed into a helical shape and then welded along its seams. The production process can be broken into several steps:1. **Material Preparation**: High-quality steel strips or plates are used as the r