What are the characteristics of the operating skills of the hydraulic pipe bender?

  1. Pipe type regularization of hydraulic CNC pipe bending machine
       When planning and arranging pipes, the arc should not be too large. Excessive arc not only makes the tooling bulky, but also is limited by the size of the pipe bending machine. The arbitrary curve and compound bending plan modeling is very unfair, which greatly hinders the mechanized and automated production and makes it difficult for the operator to break away from the heavy physical strength. Labor; greater than 180. The arc makes the bending machine unable to unload the mold.  
  2. Standardization of bending radius of hydraulic pipe bender
       The bending radius should only realize the “one tube, one mold” and “multiple tubes, one mold”. Regarding a pipe, no matter how many bends and the bending angle, there can only be one bending radius. Because the pipe bender does not change the module during the bending process, this is “one pipe, one mold”. “Multi-tubes and one mold” means that all pipes with non-stop diameters should only be bent with a single set of bending radii, or a uniform set of modules can be used to bend different shapes of pipes. This is conducive to eliminating the number of modules.
  3. Proper bending radius value of hydraulic pipe bender
       The size of the bending radius of the catheter determines the size of the resistance when the catheter is bent. Generally speaking, a large pipe diameter and a small bending radius are prone to internal wrinkles and slipping signs during bending. The bending quality is difficult to guarantee. Therefore, the R value of the pipe bending die is usually 23 times the pipe diameter. 
  4. Moderate bending rate of hydraulic pipe bender
    The important influence of the bending forming rate on the forming quality is: too fast the rate will easily cause the flattening of the bending part of the catheter, and the roundness will not meet the requirements, causing the catheter to tear or break; if the rate is too slow, it is easy to cause wrinkles and wrinkles of the catheter. The compression block slips, and the large diameter pipe is easy to form the sinking of the bending part of the pipe. For a large number of tests on these two hydraulic pipe benders, it is advisable to determine the bending rate of the pipe at 20%-40% of the maximum bending rate of the machine. 
  5. The mandrel and its position of the hydraulic pipe bender
      The core rod plays an important role in supporting the inner wall of the bending radius of the catheter to prevent its deformation during the bending process. Nowadays, the quality of domestic pipes is difficult to guarantee if the mandrel is used for bending and forming on the machine tool. There are many types of mandrels, such as cylindrical mandrels, universal single-, double-, triple-, and four-ball mandrels, directional single and multi-ball mandrels, and so on. In addition, the position of the mandrel also has a positive effect on the bending of the pipe: theoretically, its tangent should be flush with the tangent of the pipe bending die, but a large number of tests have shown that it is better to be 1~2mm ahead of time. Tube quality is more ambitious. Of course, too much advance will cause the so-called “goose head” sign to appear on the outer wall of the curved section.


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