我厂五机架连轧机和单、双机架平整机是引进西德的生产线,在超设计115万吨生产工况下,每年约有200根左右小径废辊退役(报废),废辊尺寸见图1。截止1988年12月,此类退役的小径废辊竟多达899根,车间内外废辊堆积如山。至4988年底小径废辊构成情况见图2,由图可见,小径废辊899根中可改制利用的有697根,占总数的77.53％。为使轧辊做到 Our five-stand continuous rolling mill and single-and double-rack flattening machines are the production lines introduced into West Germany. Under the super-designed production of 1.15 million tons, about 200 small-diameter waste rollers are decommissioned (scrapped) Size shown in Figure 1. As of December 1988, as many as 899 waste wheels of such decommissioned trails have been built and the waste rollers inside and outside the workshop have been piling up. By the end of 4988, the composition of the small-diameter waste roll is shown in Fig. 2. It can be seen from the figure that 697 small-diameter waste rolls can be re-used and accounted for 77.53% of the total. For the roll to do it