Ⅰ.调整前基本情况 沈阳第二机床厂自从一九五四年第四季度产品质量低劣情况暴露以後,装配车间就以返修老产品为主,直到一九五五年第二季度,新产品才逐步上场。当时,装配车间的生产任务,一方面是大量地进行255摇臂钻的返修工作;而另一方面新产品2A125立钻试制补课已经完成,将要 I. Basic situation before adjustment Since the second quarter of the 1960s, the second machine tool factory in Shenyang has exposed the poor quality of its products. The assembly shop mainly reworks old products. Until the second quarter of 1955, new products were introduced. Progressively. At the time, the assembly plant’s production tasks, on the one hand, was a large number of 255 rocker drills for rework; on the other hand, the new product 2A125 vertical drilling trials had been completed and will be