HEBEI PENGXIN PIPELINE EQUIPMENT GROUP CO.,LTD |
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Pipe Elbow Fittings 6" SCH40 180D SR A234WP5 206
Seamless elbow: elbow is a pipe fitting used at the bend of a pipe. The largest proportion of all pipe fittings used in the pipeline system is about 80. Usually, different forming processes are selected for bends with different materials or wall thickness. The seamless elbow forming process used by the manufacturer is hot push, stamping, extrusion and so on.
Thermal Push Form
The forming process of hot-push elbow is the process of using
special elbow pushing machine, core die and heating device to make
the blank set on the die move forward under the push of the pushing
machine, and be heated, expanded and bent in motion. The
deformation characteristic of hot push elbow is to determine the
diameter of pipe billet according to the law of constant volume
before and after plastic deformation of metal material. The
diameter of pipe billet is smaller than the diameter of elbow.
Compensate to other parts of the inner arc thinning due to diameter
expansion, thus obtaining a uniform wall thickness elbow.
The hot-push elbow forming process has the characteristics of
beautiful appearance, uniform wall thickness and continuous
operation, which is suitable for mass production, so it has become
the main forming method of carbon steel and alloy steel elbows, and
has also been applied in the forming of stainless steel elbows of
some specifications.
The heating mode of forming process includes intermediate frequency
or high frequency induction heating (heating ring can be multi-ring
or single ring), flame heating and reflecting furnace heating. The
heating mode depends on the requirements of forming product and
energy situation.
Chinese name | 弯头 | Angle | 45 and 90 180 Three most commonly used |
Foreign Language | elbow | attended mode | Direct welding flange connections |
Alias | forge and press;forge and stamp | Classification | Welding elbow, punching elbow, pushing elbow, etc |
Applications | Plumbing installation |