连续退火炉内钢带稳定运行张力分析

在连续退火机组,为了保证钢带的稳定运行,必须给钢带施加一定的张力并进行稳定控制,防止钢带发生瓢曲和跑偏。分析了连续退火机组钢带工艺张力设定的基本原则,在高温工艺段,为防止钢带发生瓢曲,钢带张力要小于钢带瓢曲的临界张力;在连续退火炉外或退火炉的低温段,为防止钢带发生跑偏,钢带张力要保证钢带和辊子表面的包角,充分发挥辊子对钢带的拘束和纠偏作用。另外,调整钢带的张力还要考虑设备能力,比如钢带在辊面的包角、辊子的传动马达功率、辊面粗糙度等。

Tension Analysis for Stable Strip Running in a Continuous Annealing Furnace

In a continuous annealing line,for guaranteeing stable strip running,some tension should be applied to the strip so as to control the running in stable state,preventing strip from buckling and snaking. In this paper,the primary principles for presetting strip tension are studied. In the high temperature process section,the strip tension for avoiding strip buckling should be lower than that of the critical strip buckling,while in the section outside the annealing furnace or the low temperature process sectio...