Transverse buckling of a strip in continuous annealing
production line (CAPL) has been investigated. Transverse
buckling occurs when the induced compressive stress resulting
from non uniform longitudinal stretching in the strip exceeds
a critical buckling stress. The MARC software has been used
along with a buckling nonlinear geometrical analysis. The
mechanisms of major factors, such as roll profile, flatness,
strip size, transverse distribution of temperature, welding
seam and strip track-off are reported. The average hour
output increased by 5.89% through a series of technical
developments.