According to relevant reports, China's existing machine tool holdings are around 8 million units, making it the world's largest machine tool. Among them, more than 2 million traditional old machine tools have been in service for more than 10 years, and have entered the peak period of mechanical equipment scrapping. If you let these old machine tools rust and fester, it is not only a waste of resources, but also a great threat to the environment.

In the “12th Five-Year” development plan of the machine tool industry, green manufacturing projects including remanufacturing have been included in the main scope of work.

In fact, from the point of view of resource and enterprise cost control, the machine tool industry itself has a strong expectation for remanufacturing. The upstream steel industry in the machine tool industry, due to iron ore, coke and other raw materials for steelmaking are non-renewable nature. Resources, and the iron ore required by China's major steel mills depends on the three major mining giants in foreign countries. In recent years, they have been subject to rising iron ore prices, high steel prices, and high cost of downstream machine tool companies. Remanufacturing is beneficial to the environment as well as to the reduction of the cost of the enterprise.

Machine tool remanufacturing is a kind of green manufacturing. Compared with new products, it can save 60% energy, 70% material saving, 50% cost saving, almost no solid waste, and air pollutant emissions reduced by more than 80%.

In addition, re-manufacturing a circular economy model that is conducive to the formation of resources - products - waste products - remanufactured products, can make full use of resources to protect the ecological environment. In addition, the social retention of machine tools in China is growing rapidly, and the potential for remanufacturing industry is huge. A large amount of equipment will be eliminated after reaching the end of scrapping requirements, and new decommissioning equipment is still increasing.

At present, many universities and research institutions in China have carried out research in the field of green manufacturing and have achieved certain results. For example, Chongqing Machine Tool Group and Chongqing University have jointly developed a complete set of machine tool remanufacturing and comprehensive lifting technology, and completed the remanufacturing of more than 500 used machine tools. The functions and main technical indicators of the remanufactured machine tools meet or exceed the original machine tools. The utilization rate is about 80%, the noise is reduced by more than 10%, and the environmental pollution discharge is reduced by more than 90%.

In addition, the electrostatic mist absorbing device developed by Qinchuan Machine Tool has greatly improved the treatment effect of oil mist compared with the traditional filter device, the efficiency is over 96%, the discharged air is basically clean, and the recovered oil mist The particles are recycled repeatedly.

Li Jingming, deputy secretary general of China Machine Tool Industry Association: Nowadays, traditional thinking and production methods are undergoing profound changes. A green industry revolution is emerging in the machine tool industry. At present, China's machine tool industry is achieving green manufacturing through four technical measures: low carbon through technological innovation; low carbon through innovative processing; low carbon through innovative structures; low emissions through recycling and self-lubricating materials.

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