The process is as follows: after the straight pipe is cut, the induction coil is put on the part to be bent by the bending machine, the pipe head is clamped by the mechanical arm, and the intermediate frequency current is passed into the induction coil to heat the steel pipe. When the temperature of the steel pipe is When it rises to a plastic state, the back end of the steel pipe is propelled by a mechanical thrust to be bent, and the bent steel pipe is rapidly cooled with a coolant so that it is heated, pushed, bent and cooled, and the bent pipe is continuously bent. Bend out. Hot simmering steel elbows are mainly used in arc-shaped steel structures in construction, tunnel support, subway engineering, aluminum doors and windows, ceilings, cylindrical inner skeletons, balcony handrails, shower doors, production line tracks, fitness equipment, and other industries.
Cold simmer bend is a method of bending at room temperature without heating or changing the material structure, which is called cold simmer bend. To prevent the pipe from being deflated or deformed during the bending process, some auxiliary materials or equipment, such as springs, are often filled in the pipe. The cold simmering steel elbow is bent by a complete set of bending molds, which is mainly used for oil, gas, infusion, etc.! Cold simmer bends are generally used for small-diameter pipes, while large-diameter pipes cannot be cold-formed!
The materials of steel elbows are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics.