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产品类型：Seamless elbow manufacturers
产品型号：114
产品厚度：sch40
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Seamless elbow manufacturers
What are the forming methods of seamless elbow? Here is a simple introduction to the manufacturing process of seamless elbow:
Stamping method: The seamless elbow is made by expanding the end of the pipe to the required size and form with a taper core on the punch press.
Forging and pressing method: When making seamless elbow, the end or part of the pipe is extended with a forging machine to reduce the outside diameter. The commonly used forging machine is rotary type, connecting rod type and roller type.
Rolling method: seamless elbow is usually made without mandrel, suitable for the inner edge of thick wall pipe. The core is placed in the tube, and the roller is used to push and press around the tube for round edge processing.
Bulge method: seamless elbow in the production of a kind of rubber is placed in the tube, above the punch shrinkage, so that the tube protrudes into shape; The other is hydraulic bulking, in which a liquid is pumped into the middle of the tube and the pressure of the liquid pushes the tube into the desired form. This is the way most wave tubes are made.
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