tube expander

Specification: diameter 60 ~ 1420mm, wall thickness 3 ~ 120mm, length 3 ~ 24m.Steel tubes of various materials can be expanded (such as p91-92 / t91-92, Q235, Q345, 45#, a106b-c, 12CrMoV)

The tube expander is designed for large diameter seamless steel tube with insufficient production and incomplete specifications.The equipment is a parallel equal-speed pusher with two oil cylinders or four oil cylinders.According to the outer diameter and length of the expanded steel pipe, set the power of the medium-frequency heating power supply, the thrust and stroke of the oil cylinder.

Biggest interchanged expansion pipe diameter Φ 1520 mm, wall thickness 120 mm.It can be composed of heat expanding tube and drawing tube.The diameter of the billet used by the tube expander is smaller than the diameter of the tube to be obtained, and the deformation process of the billet is controlled by the core mold, so that the metal flow in the inner arc is compressed and compensated to other parts thinned due to diameter expansion, so as to obtain the hot expanding steel pipe with uniform wall thickness.Thermally expanded steel tube forming technology has the characteristics of beautiful appearance, uniform wall thickness and continuous operation, which is suitable for mass production.The opposite process is drawing.The thicker steel tube with the process of stretching into a smaller tube, the steel tube produced by this process is called drawing.The material has carbon steel, stainless steel and alloy steel and so on.Steel tube after the thermal expansion process, its material is unchanged.Welded pipe, seamless pipe can be applied to this industrial technology.