interchanged

Specification: diameter Φ60 ~ Φ1420mm, wall thickness of 3 ~ 120mm, length of 3 ~ 24m.Can be expanded to various materials of steel pipe (such as P91-92/T91-92, Q235, Q345, 45#, A106B-C, 12CrMoV)

Pipe expanding machine is designed for large diameter seamless steel pipe with insufficient production capacity and incomplete specifications.The equipment is a double-cylinder or four-cylinder parallel uniform-speed pusher, and the valve table of the pump station adopts the integrated form.According to the outer diameter and length of the expanded steel pipe, the power of the medium frequency heating power supply, the thrust and stroke of the cylinder are set.

Biggest interchanged expansion pipe diameter Φ 1520 mm, wall thickness 120 mm.It can be composed of thermal expansion and tube drawing.The diameter of tube billet used by the tube expander is smaller than that of the pipe to be obtained, and the deformation process of the billet is controlled by the core mold, so that the compressed metal flow in the inner arc is compensated to other parts which are thinned due to the diameter expansion, and the uniform wall thickness of the hot expanding steel pipe is obtained.Due to its beautiful appearance, uniform wall thickness and continuous operation, the hot expanding steel tube forming process is suitable for mass production. Therefore, it has become the main forming method for steel tube expanding of carbon steel, alloy steel and stainless steel.The opposite process is tube pulling.The thicker steel pipe is stretched into a finer pipe by the process, and the steel pipe produced by this process is called pulling pipe.Material has carbon steel, stainless steel and alloy steel, etc.After the thermal expansion process, the material of steel pipe remains unchanged.Both welded and seamless pipes are suitable for this industrial technology.

Medium frequency tube expanding machine

Intermediate frequency expanding machine is a kind of expansion pipe unit period of intermediate frequency heating method and device, its period of intermediate frequency heating method is: when the steel tube on the expansion unit is fed into the spiral induction coil within and between mandrel, consists of three independent of intermediate frequency power supply for three spiral induction coil to provide the power and temperature control of steel pipe in the spiral induction coil current under the action of heating, the heating temperature is divided into preheating section, thermal expansion and sizing, steel pipe by the driving of the power unit forward direction, core mold close to the steel tube wall, and decide the final steel pipe diameter size, to suit the requirements of processing.The multi-stage medium frequency heating device of the tube expanding unit comprises three spiral induction coils with different diameters independently installed on the tube expanding unit. The three spiral induction coils are divided into the preheating spiral induction coil, the thermal expanding spiral induction coil and the sizing spiral induction coil. Each spiral induction coil is equipped with an independent medium frequency power supply.

Equipment advantages: intelligent constant temperature system.In addition to the medium frequency expanding machine, the company also produces three way machine, elbow pushing machine, medium frequency pipe bending machine, four column gantry press, etc., which are exported to domestic and foreign countries, including the United States, Malaysia, India, etc.

301-302.