Elbow and product production process: 1, large diameter hot simmer elbow is the more primitive production methods, tube filling sand, and then the tube is heated to simmer elbow. The method greater flexibility, but the efficiency is not high, greater energy wastage, high cost. Carbon steel heat bending bends less use of the method, but there are obvious advantages in the non-ferrous metal pipe and plastic pipe simmer bend. The process: filling sand, heating, bending, sand, slightly larger caliber should bend with heat and simmer. If the cold simmer production wall fold, oval phenomenon. 2, steel pipe material in the steel pipe pushing machine part to be bent to put on an induction loop pipe stuck in the head with a mechanical rotating arm, induction loop pass into the intermediate frequency current heating pipe, when the pipe temperature rises to a plastic state in the back of the steel pipe with a mechanical thrust forward, bending steel pipe bending part of the rapid cooling agent, such heating, edge forward, side bending, while cooling will continue to elbow bending. 3, heat bending bends mainly used for circular steel structure of the building, tunnel support, curved roof beams, underground engineering, aluminum doors and windows, ceiling, package cylindrical skeleton, balcony handrails, shower door, the production line track, fitness equipment and more species IDM. Many years my company produces heat simmer pipe, large diameter heat bending bends, pipe and other products, Materials include: carbon steel (20 #, Q235, Q345, A105, A106, A516 Gr70, etc.), alloy steel (P11, F11 , P9 F9 12Cr1MoV, 15CrMoG 1Cr5Mo and etc.), stainless steel (304,316,321,316 L, 304L ,18-8, etc.), advanced process equipment, detection means complete, thus ensuring the quality of the output, so that customers rest assured that at the time of purchase, the company promised: during the product warranty period, if the product is damaged, I will be compensated or repair, we have an obligation to assist the demand side, our field service personnel dispatched to meet the needs of the project.