目前,决定设备是否大修,往往是根据设备的大修间隔期和大修前的技术鉴定,很少考虑或研究经济效益问题。但是,一次大修费用一般要占该机原值的20～50%,经济上有无修复价值?怎样判断有无修复价值?这就是本文所要讨论的内容。首先研究各项费用的变化规律。1.机械费收入指该设备创造的产品价值。在结算价格没有变化的情况下,可以根据台班费或完成的工 At present, the decision to overhaul the equipment is often based on equipment overhaul interval and overhaul of technical appraisal, seldom consider or study the economic benefits. However, an overhaul costs generally account for 20 ~ 50% of the original value of the aircraft, the economic repair value? How to determine whether the repair value? This is the content of this article to be discussed. First of all, study the changing rules of various fees. 1. Mechanical fee income refers to the value of the product created by the device. In the case of no change in the settlement price, you can base on the shift fee or work done