With Medium Plate Plant of Handan Iron and Steel Company as example the influence of cut loss and negative-tolerance rolling on products rate is introduced, the concerned formula derived, a large quantity of data offered to certify it.

• 以邯钢中板厂为例,从切损和负偏差轧制两方面简要介绍了它们对成材率的影响,推导出其相应公式,并举出大量数据进行了有力证明。