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对于大H型钢(腹板高度≥600mm)的压力矫直,易于产生腹板失稳问题,准确地预测失稳区域,并设计出相应防止失稳的机构,对于大H型钢的矫直具有非常重要的意义。在对大型H型钢压力矫直过程中的塑性变形深度问题、失稳机理进行深入研究之后,设计出国内第一台10MN大型H型钢压力矫直机,该机能够有效的控制H型钢的失稳,并能对型钢的特殊部位进行矫直,配合先进的主缸位移控制手段,可精确的对大H型钢进行矫直,可作为新上机组的范例。
For the pressure straightening of large H-beam (web height≥600mm), it is easy to produce web instability, accurately predict the area of instability, and design a corresponding mechanism to prevent instability, which has a great effect on the straightening of large H-section steel Significance. After in-depth study of the plastic deformation depth and instability mechanism in the pressure straightening process of the large-scale H-shaped steel, the first 10MN H type steel pressure straightening machine in China was designed, which can effectively control the instability of the H-shaped steel , And the special parts of straightening straightening, with advanced master cylinder displacement control means, can be precise straightening of large H-beam, can be used as an example of a new unit.