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一、箔材轧制压力计算上存在的问题箔材轧制中通过实测来获得变形抗力是相当困难的,轧材与轧辊间的摩擦系数也很难确定。在以往的薄带轧制压力计算中,无论是采用 Ford-Bland(福特—布兰特)或 Karman-Trinks(卡尔曼—特林克)的图解,还是采用Stone(史通)公式,计算结果,压力倍增系数 f 均变得很大,与实际测定值出入不小。例如将厚度为18微米的铝材轧制到10微米,各取摩擦系统μ为0.04,按 Stone 公式求得 f>50。这样选择约束变形抗力 S(公斤/毫米~2)及μ值
First, the foil rolling pressure calculation problems Foil rolling obtained through the measured deformation resistance is quite difficult, the rolling material and the friction coefficient between the roller is also difficult to determine. In previous strip rolling pressure calculations, either the Ford-Bland or Karman-Trinks plot was used, or the Stone formula was used to calculate the results , The pressure multiplication factor f have become very large, with the actual measured value of a small discrepancy. For example, a thickness of 18 microns of aluminum rolling to 10 microns, each taking the friction system μ 0.04, according to Stone formula f> 50. This choice of constrained deformation resistance S (kg / mm ~ 2) and μ value