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Zhejiang Provincial Department of Economy and Information Technology announced the list of the1st batch core equipment engineering project of Zhejiang manufacturing industry in 2023, and the project of high temperature bushing plug valve for fine chemical industry jointly declared by our unit and Tianjin University of Technology was selected. The project aims at the research and development of self-lubricating material optimization, bushing process optimization, product design and other three parts, such as: The orientation mapping of polystyrene ester, glass fiber content and high temperature mechanical properties of PTFE composites, and the strengthening mechanism of high temperature mechanical properties of PTFE were studied, and the mechanical constitutive model of modified PTFE was established to predict the high temperature mechanical behavior of modified PTFE materials (focusing on creep and creep recovery).

The1st batch core equipment refers to the equipment products that the enterprise has achieved major technological breakthroughs, has independent intellectual property rights, and has not achieved significant market performance, including complete sets of equipment, complete equipment and core components, control systems, basic materials, software systems, etc. The first (set) equipment is divided into complete sets of equipment, complete equipment and key components. The first batch of new materials refers to the new materials that enterprises have patents or other independent intellectual property rights through independent research and development, introduction and absorption, and have technological leading advantages or break market monopoly, and have not yet achieved significant market performance. The first version of software refers to a software product with the same name and the same version number that is sold for the first time by an enterprise through independent development or cooperative development, which has made a major breakthrough in its function or performance, has a leading technological advantage in the field or breaks the market monopoly, has independent intellectual property rights, and has not achieved significant market performance.

The1st batch core equipment engineering project of Zhejiang manufacturing industry refers to the development of major short-board equipment, key new materials, key software, and key products of the industrial chain supply chain "complement chain" to fill the domestic gap, which is still in the stage of research and development or engineering research, and can achieve no less than one engineering application or major engineering project supporting projects in one to two years. The expected technical level of the product after the completion of the project should reach the domestic leading level and above in similar products, or meet the product index requirements of the national first (set) product promotion and application guidance catalog.