The bending of the pipe is the same as that of the sheet metal. In the case of pure bending, diameter D, wall thickness of T tube external force moment M effect occurs when bending neutral layer, lateral wall tensile stress 1, wall thinning; neutral layer of the tube wall of the inner side tension stress 1, pipe wall thickness. Moreover, the shape of the cross section due to the resultant force, the role of F1 and F2 from round to approximate ellipse, when the amount of deformation is too large, the outer wall of the tube will crack, the inner wall of the pipe will appear wrinkled. Therefore, the low frequency torque of the inverter is required, the output is steady, the dynamic response is fast, the reaction time is 0.5 seconds, the braking effect is good, and the motor is braked at high speed under 2 seconds.
Zhuo's production of automatic bending machine series inverter in 0.5HZ 180% output torque, torque dynamic response, stable output speed and high accuracy, intelligent control system, the brake is powerful, 0.5 seconds to start and stop, V/F flux vector, strong anti-interference ability, fully meet the needs of users.
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