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产品类型：Carbon steel seamless elbow
产品型号：114
产品厚度：sch40
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Carbon steel seamless elbow
The manufacturing process of carbon steel seamless elbow:
Forging method: the end of the pipe or part of the forging machine to be stretched, so that the outer diameter to reduce the seam elbow, commonly used forging machine has rotary, connecting rod, roller type.
Rolling method: generally do not use mandrel, suitable for thick wall tube inner circular edge.The core is placed in the tube, and the outer circumference is pushed by a roller for the processing of round edges.
Stamping method: the tube end is expanded to the desired size and shape with taper cores on the punch press.
Bending forming method: there are three methods commonly used, one method is called extension method, the other method is called stamping method, the third roller method, there are 3-4 rollers, two fixed rollers, an adjustment roller, adjust the fixed roller distance, the finished pipe fitting is bent.
Blowing method: one is to place rubber in the pipe and compress it with a punch to make the pipe protrude into shape;The other method is hydraulic bulging, in which a liquid is filled in the middle of the tube and the pressure of the liquid pushes the tube into the desired shape. Most bellows are made by this method.
10# 20# A3 Q235A 20G Q345B 20G 16MN ASTM A234 ASTM A105 ST37 ASTM A403, etc.
Carbon steel seamless elbow Angle is divided into: 45°, 90°, 180° these three commonly used elbow, and engineering needs, can be specially customized such as 60° or other angles, etc.
Carbon steel seamless elbow is mainly connected in the form of direct welding or flange connection, threaded connection, socket connection and so on.
Carbon steel seamless elbow use: connect two pipes, so that the pipe change direction, 45° or 180° and 90° direction or other angles turn.
Carbon steel seamless elbow manufacturing standards: national standard, American standard, Japanese standard, German standard, Russian standard, etc.
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