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随着厚规格、高强度品种钢的大量开发,头部翘曲成为板材生产过程的一种常见缺陷,同时部分矫直机矫直能力不足,使头部翘曲板材矫直过程困难。以开发厚规格、高强度品种钢过程中频繁出现的头部翘曲呈蛇形板材矫不平问题为依托,采用弹塑性差分的曲率积分方法,研究头部翘曲对传统矫直过程残余曲率和矫直力的影响,提出利用静压矫直方法解决头部翘曲板材矫不平问题。通过理论分析和现场实践证明:静压矫直可以有效解决头部翘曲板材矫不平问题,改善板形,减小切损量。
With the development of thick gauge and high strength steels, the head warpage has become a common defect in the sheet production process. At the same time, some straightening machines lack of straightening ability, which makes it difficult to straighten the head warping sheet. In the development of thick gauge and high strength varieties of steel frequently occur in the process of head warping snake-shaped plate straightening problems based on the use of elastic-plastic differential curvature integral method to study the head warp curvature of the traditional process of residual curvature and Straightening force, proposed the use of hydrostatic straightening method to solve the problem of head warping plate straightening. Through theoretical analysis and field practice, it is proved that static pressure straightening can effectively solve the problem of head warp sheet leveling, improve the shape of the sheet and reduce the cutting loss.