Hot Push Elbow Carbon Steel Alloy Steel Elbow 90 Degree 1.5D Sch40

The hot push elbow forming process is to adopt a special elbow pushing machine, a core mold and a heating device, so that the blank sleeved on the mold moves forward under the push of the pusher, and be heated, expanded, and bent in motion. The deformation characteristic of the hot push elbow is to determine the diameter of the tube blank according to the law that the volume of the metal material doesn’t change before and after plastic deformation. The diameter of the tube blank used is smaller than the diameter of the elbow, and the deformation process of the billet is controlled by the core mold to compress the inner arc. The flow of the metal compensates for other portions that are thinned by the expansion of the diameter, thereby obtaining an elbow having a uniform wall thickness.

The hot push elbow forming process has the characteristics of beautiful appearance, uniform wall thickness and continuous operation, and is suitable for mass production. Therefore, it is the main forming method for carbon steel and alloy steel elbows, and is also applied to some specifications of stainless steel elbows.

The heating process of the forming process includes medium frequency and high frequency induction heating (the heating coil can be multi-turn or single turn), flame heating and reverberatory furnace heating, and the heating method is determined by the forming product requirements and energy conditions.