Professor Cao Huajun, deputy director of the Institute of Manufacturing Engineering of Chongqing University, also serves as the vice chairman of the Machine Tool Remanufacturing Industry Technology Innovation Alliance. He is one of the early researchers engaged in machine tool remanufacturing in China, and has a systematic and comprehensive approach to machine tool remanufacturing technology. The research is a major participant in the national “Eleventh Five-Year†Science and Technology Support Program “Key Technologies and Applications of Machine Tool Remanufacturingâ€. He believes that machine tool remanufacturing should be considered and analyzed from the scope of the machine tool aftermarket. “Machine remanufacturing should be incorporated into a complete chain of 'machine tool sales-maintenance-remanufacturing' as a post-market for machine tools.†Cao Huajun believes that machine tools can be remanufactured after being eliminated or entering the end of life. Create new value, create a post-market service, and create a larger profit margin. At present, we have formed a complete and large-scale automobile aftermarket, and the economic benefits are very obvious. This is very worthy of reference for the machine tool industry. In recent years, China's machine tool market has developed rapidly, and the industry is very active. The number of machine tools has soared from 3 million units ten years ago to 8 million units. In general, aging problems such as electrical systems in the past 10 years, the market needs of millions of units in 10 years. Worldwide, as the growth rate of major users such as automobiles tends to moderate, the growth of the machine tool market will also slow down accordingly, and machine tool capacity is unlikely to sustain such high-speed growth in the next few years. The demand for new machine tools will gradually shift to the need for transformation and remanufacturing, which will greatly promote the development of the remanufacturing industry. At the same time, due to the increasingly specialized division of labor, some processing companies tend to outsource process and equipment management because they don't know much about machine tools, or they can pay for a certain service fee to professional companies for equipment maintenance and renovation. Manufacturing only, this is also an opportunity for machine tool remanufacturing in the service-oriented manufacturing industry. Unlike parts and components that are mainly restorative remanufacturing, the remanufacturing of machine tools is mostly innovative remanufacturing of the whole machine. After all, the overall performance of machine tools changes greatly from 10 years ago, and remanufacturing will require functional upgrades accordingly. At the same time, parts remanufacturing generally does not enter the direct circulation sales link, mostly as a spare part, and the innovative remanufactured products of the machine tool can enter the circulation sales link, and it is easier to become an independent and complete industrial chain. At present, domestic machine tool remanufacturing is mainly the maintenance and modification of a single large and heavy machine tool, but the lack of process specifications and the market is slightly confusing. From the perspective of market gradient, the second-hand trading market has a stock of hundreds of thousands of units. This is a huge resource that can be used. Remanufacturing companies can adopt a joint approach with the second-hand trading market to jointly target customers and sign at the same time selling second-hand equipment. The remanufacturing agreement forms a one-stop service for “second-hand machine tool sales – maintenance and remanufacturing – remanufacturing machine tool on-site commissioningâ€, enabling customers to directly use remanufacturing machines that meet their needs. This also avoids customers looking for second-hand machine tools. Transform service providers. The original intention of the Ministry of Industry and Information Technology to establish a remanufacturing pilot enterprise is also to be able to form a demonstration for the future machine tool remanufacturing industry. Cao Huajun has also been involved in related work. “There is a need to establish a model enterprise and establish a sound management system, otherwise users will not have confidence to use it. This is also the process that must be experienced in the development of things, and it is urgent.†“Of course, as a service-oriented industry, the standardized scale of machine tool remanufacturing enterprises will inevitably lead to an increase in management costs. It is not as flexible as a small-scale reform company, and requires a large number of conventional remanufacturing operations. Support. If companies such as Shenyang Machine Tool and Dalian Machine Tool can establish a remanufacturing business unit, it will promote the development of machine tool remanufacturing and contribute to the industry's remanufacturing industry.†Cao Huajun feels that the manufacturing companies that attract general machine tools are involved in remanufacturing. It is conducive to the industrialization of machine tool remanufacturing. Remanufacturing is relatively mature in the United States. According to Cao Huajun, there are many CNC technology upgrades or refurbishment projects for customer orders in the United States, and most of the machine tool remanufacturing companies are third-party remanufacturing service companies; Large, but technical specialization is very high. The United States also has a manufacturing certification system that guarantees the quality and reliability of remanufactured machine tools, but we do not currently have a standardized system. Compared with the development experience of the US machine tool remanufacturing industry, Cao Huajun believes that we support the re-manufacturing mode of the machine-level re-manufacturing of the old machine tool through the transformation and technology upgrade to achieve accuracy recovery, performance and energy efficiency upgrade. Remanufacturing reuse of the remanufacturing mode. Through the complete disassembly of used machine tools, the focus is on recycling and reusing aging, high-value castings and key components, recycling of used machine tools, batch remanufacturing, and entering new machine tools or new design remanufacturing machine supply systems. This will lead to the scale and industrialization of the machine tool remanufacturing industry.
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