H型钢精确矫直技术的研究分析

The investigation in h-beam precision straightening technology

介绍了H型钢的多辊矫直原理,指出由于构件断面结构特点、矫直加载方式及多辊矫直过程的复杂性,决定了应用传统矫直理论对此类薄壁异形构件的矫直力学行为进行精确描述具有局限性。结合国内外研究现状,提出从矫直变形机理的进一步研究、初始弯曲程度对工艺参数及矫直质量的影响、残余应力的形成及控制机理,以及利用有限元仿真技术手段等方面对H型钢矫直技术展开深入研究的方向,以寻求适用于H型钢这类薄壁构件的精确矫直理论。

Introduces the roller straightening principle of H-beam and pointed out the limitations of the traditional straightening theory when used for precise-describing the mechanics behavior of thin- walled section members such like H-beam during straightening process.Based on the research of decade, the direction to research of the precise-straightening technology for H-beam were put forward, to seek for the precise-straightening theory fitting in with H-beam.