| 摘要 |
<p>PURPOSE:To obtain a method for detecting warp, in lateral and longitudinal directions, of a plate under nonrestrained state in production line. CONSTITUTION:Residual moments Mx0, My0 in longitudinal and lateral directions of a plate to be inspected are determined by the method of least squares based on lateral shape, tensile force, predetermined thickness, width, and material constant of the plate such that the difference from the lateral shape (w) calculated according to formula (1) is minimized and then warps Ll, Lc in the longitudinal and lateral directions are calculated according to formulas (2), (3). w(y)=Mx0.wx(y)+My0.wy(y)...(1) Ll=Mx0.10<2>/4D...(2) Lc= My0.b<2>/4D...(3) This method allows highly accurate on-line detection of the warp of band member and produces a highly accurate band steel when it is fed back to actual operation.</p> |
