What should be done to reduce the pipe thickness of single head hydraulic pipe bender?

   

How should we pay attention to and arrange the thickness of single head hydraulic pipe bender?
What should be done to reduce the pipe thickness of single head hydraulic pipe bender? First of all, it should be clear that the different application functions of pipe bender have different requirements for wall thickness thinning rate. For example, the pipe fittings used in industrial pipeline engineering shall not exceed 10 for high-pressure pipes; The medium and low pressure pipes shall not exceed 15 and shall not be less than the planned wall thickness.
The ways to reduce the thickness thinning of pipes are as follows:
1) Decrease the value of tensile stress at the position where tensile deformation occurs outside the neutral layer. For example, the resistance part heating method is adopted to reduce the deformation resistance of the metal material inside the neutral layer, so that the deformation will more converge on the compression part and reach the intention of reducing the stress level of the tensile part.
2) Change the stress condition in the deformation zone and increase the composition of compressive stress. For example, changing the bending to push bending can fundamentally overcome the disadvantage of the transition thinning of the pipe wall. In practice, the bending moment of single head hydraulic pipe bender depends not only on the function of pipe, section shape and specification, bending radius and other parameters, but also on the bending method and die structure. It is impossible to use many production factor calculation formulas now.