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近几年,我国进行国民经济调整,工厂企业进行技术改造,进行可行性研究,在工厂设计中出现了一段设计——实施方案设计。在实施方案设计中做好原有设备的更新改造和正确选用新设备,这是技术改造中的一个很重要的问题,它直接关系到四个现代化的建设。一、机械工厂的设备更新改造问题设备更新,简单的讲就是用新设备替换旧设备,工厂企业选用新技术性能、高强度或高效率的先进设备替换原有的旧设备。我国自解放以来,经过几个五年计划的建设,工业已有了一定的基础。金属切削机床约有300万台,具有一定的生产制造能力。但是,有相当多的设备是属于五、六十年代的产品,与世界先进技术相比有很大差距。设备陈旧、精度差、生产的产品质量低、甚至达不到技术要求,影响了机械工业实
In recent years, China has made adjustments to the national economy, plant companies have conducted technological transformations, conducted feasibility studies, and a design-implementation plan has emerged in the design of factories. In the design of the implementation plan, the upgrading of original equipment and the correct selection of new equipment are important issues in technological transformation. It is directly related to the construction of four modernizations. I. Equipment Renovation and Renovation of Mechanical Plants Equipment upgrades, simply speaking, replace old equipment with new ones. Factories use advanced equipment with new technology capabilities, high-intensity or high-efficiency, and replace old equipment. Since the liberation of China, after several five-year plans have been built, industry has already established a certain foundation. About 3 million metal-cutting machine tools have certain manufacturing capabilities. However, there are quite a few devices that belong to the five or sixties and there is a big gap compared with the world’s advanced technologies. Outdated equipment, poor precision, low quality of the manufactured product, or even technical requirements, affecting the mechanical industry