Carbon Steel Pipe Bend Manufacturing Process

　　The manufacturing process of carbon steel pipe bends primarily involves multiple processes, the most important of which are pushing, stamping, and plate welding.

　　Pushing is the primary forming and production process for carbon steel pipe bends. This process requires a pusher, a mandrel, and heating equipment. First, the finished pipe blank is placed over the mandrel. The pusher then pushes the blank, heating and forming it simultaneously. Heating methods typically include medium-frequency or high-frequency induction heating, flame heating, and reverberatory heating furnace.

　　Stamping is suitable for producing thick-walled carbon steel pipe bends, especially for small batches. This process produces high-quality bends and is suitable for specialized applications.

　　Plate welding is primarily used for the production of large-diameter carbon steel pipe bends. This process has a wide processing range and produces standard bend dimensions, making it suitable for large-scale engineering projects. Furthermore, the production principle of carbon steel bends involves using a multi-faceted ring shell or a closed polyhedral shell with polygonal cross-sections at both ends. The shell is filled with a pressure-transmitting medium. Under the action of internal pressure, the polygonal cross-section sector gradually rounds, eventually becoming a ring shell. A ring shell can be cut into bends of varying angles as needed.