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为了使综合自动化产生最大的效果,首先必须详细分析各机械部份的工作,找出其中的薄弱环节。在南方轧管厂,对轧机各个轧制工序消耗的时间分析证明(见表),汽动辅助机构的非重叠工作时间占整个周期时间的33.6～58.5%。缩减这一时间就能使轧机生产率得到显著的提高。研究在自动轧管设备上热轧管子时缩减这一时间的方法是值得注意的。辅助时间的极大部份耗费在长行程的汽缸工作土:在整个周期时间中,在均整机上(支持轴承的传动)占了近40%,在穿孔机上占了近47.5%,在自动轧
In order to produce the most comprehensive result of automation, we must first analyze the work of each mechanical part in detail and find out the weak points in it. In the South Tube Mill, the analysis of the time consumed by each rolling process of the rolling mill (see table) shows that the non-overlapping working time of the steam-assisted auxiliary machinery accounts for 33.6-58.5% of the entire cycle time. Reducing this time will result in a significant increase in mill productivity. It is noteworthy to study the method of reducing this time in the hot rolling of tubes on automated pipe rolling equipment. A significant part of the auxiliary time is spent on long-stroke cylinder workings: nearly 40% of the total machine cycles (supporting the transmission of the bearings) and nearly 47.5% of the piercing machines are used throughout the cycle time, Rolling