Epoxy resin is a kind of polymer material with high performance. It is a two-component system composed of epoxy group and amine group, which forms polymer compound by mixing and reaction. It has strong adhesive force, corrosion resistance, heat resistance, electrical insulation and mechanical strength, and is widely used in aviation, aerospace, automotive, construction, electronics, ships and other fields. Epoxy Resins,Crystal Clear Epoxy Resin,Hardener Epoxy Resin,Liquid Epoxy Resin Shanghai Shengduan Trading Co., Ltd. , https://www.shsdchem.com
High-end CNC machine tools and basic manufacturing equipment are the cornerstones for realizing the modernization of manufacturing technology and industry. Their performance, quality and quantity have become important indicators of measuring the industrialization level and comprehensive national strength of a country today. The world's equipment manufacturing powerhouses attach great importance to controlling high-end manufacturing equipment as the industry's commanding heights, attach importance to high-tech optimization and upgrading of traditional equipment manufacturing, support high-end manufacturing, and maintain industrial superiority, which also proves from one side, vigorously develop high-end CNC machine tools and basic manufacturing Equipment has a global and strategic significance.
During the "Eleventh Five-Year Plan" period, as a special project of China's 16 major science and technology major projects that had the closest relationship with the manufacturing industry, the major projects of "High-end CNC Machine Tools and Basic Manufacturing Equipment" have achieved great results.
Since the "Eleventh Five-Year Plan" period, the numerical control rate and domestic market share of China's domestic machine tools have increased substantially. Among them, the numerical control rate of domestic machine tools increased from 35.5% at the end of the “Tenth Five-Year Plan†period to 51.9% at the end of the “Eleventh Five-Year Planâ€, and the domestic market share increased from 26.4% at the end of the “Tenth Five-year Plan†to the end of the “Eleventh Five-Year Plan†period. 56.7%. It is particularly worth mentioning that the special implementation has played an active role in responding to the impact of the international financial crisis and has strengthened the innovation and competitiveness of key enterprises. At the end of the “Eleventh Five-Year Plan†period, the sum of top 10 sales revenues of China's machine tool companies accounted for about 25% of the sales revenue of the machine tool industry.
Constructing "Cooperative Mechanism for Production, Learning and Research" Large-scale CNC forming stamping equipment is widely used in the automotive, aerospace, aerospace, and home appliance industries, especially in the automotive and aerospace manufacturing industries.
In order to better meet the needs of high-volume, multi-variety production of automobiles, in recent years, the world-famous forming press equipment manufacturers are committed to the study of high-speed and flexible products. The world's leading stamping equipment manufacturers have introduced high-speed The new, flexible and continuously operable stamping production line technology, which shortens the production support time and increases the number of press operations through automation, realizes a 50% increase in production efficiency.
To this end, the "high-end numerical control machine tools and basic manufacturing equipment," a major project in 2009, "large-scale rapid and efficient CNC automatic stamping production line" project, by the Jinan Second Machine Tool Group Co., Ltd. bear. For the machine tool industry with decentralized technological capabilities, only "cooperation" can do big things. At the beginning of the special establishment, they highlighted the cooperation mechanism of “production, learning and research†with the enterprise as the main body, led by Jinan No. 2 Machine Tool Co., Ltd., Jinan Foundry and Forging Machinery Research Institute, Chery Automobile Co., Ltd., Shanghai GM Dongyue Automobile Co., Ltd., etc. Units formed a "production, learning, research and use" alliance, giving full play to their respective advantages and jointly completing key technologies and processes.
The current research progresses smoothly. The installation of all hardware devices has been completed at the end-user site (Shanghai General Motors Yantai Dongyue Automobile and Chery Automobile Co., Ltd.). The users have passed long-term reliability operation tests, and the performance is stable to meet the target requirements. Relying on this topic, the company has already undertaken production of 21 rapid stamping production lines. The products are used in automobile manufacturing groups such as FAW, Second Automobile, SAIC, Chery and Great Wall to provide basic support for the batch, quality, and strengthening of the automotive industry in China. .
The “production, research, and use†cooperation mechanism has not only stimulated the enthusiasm of manufacturing companies, universities, research institutes and user units to participate in special research, but also promoted the close cooperation between upstream and downstream of the industrial chain. More importantly, it has cultivated a number of high Hierarchical and innovative talents, especially those who are skilled in managing and understanding the technology, are innovating talents and high-skilled personnel, and have provided talent protection for the development of the CNC machine tool and basic manufacturing equipment industry.
According to Wang Fuchang, Deputy Director of the Department of Equipment Industry of the Ministry of Industry and Information Technology, the Ministry of Industry and Information Technology has worked closely with various departments to speed up the implementation of special projects. During the "Eleventh Five-Year Plan" period, special projects were arranged for more than 200 projects, with total funding More than 9 billion yuan was invested. More than 50% of the tasks led by the company have set relevant corporate standards.
Major projects have achieved fruitful results In the “Eleventh Five-Year†national major scientific and technological achievements exhibition, the “Extremely High-end CNC Machine Tools and Basic Manufacturing Equipment†major projects have been highlighted. The industrial elements are particularly prominent and exciting. The 19 exhibitions involving CNC machine tools, basic manufacturing equipment, numerical control systems, functional components, and numerical control tools represent the overall progress made in the “Eleventh Five-Year†period of China's CNC machine tools and basic manufacturing equipment industries.
"The only CNC machine tool ever achieved in the exhibition is the Huazhong 8 high-end numerical control system developed by our company." Chen Jihong, chairman of Wuhan Huazhong Numerical Control Co., Ltd., told reporters that during the "Eleventh Five-Year Plan" period, Huazhong CNC began to develop its own Innovative numerical control technology, especially in 2010, with the support of major national special projects, this year's technological progress is equivalent to the past 10 years.
Academician Lu Bingheng, Dean of the School of Mechanical Engineering of Xi'an Jiaotong University and a senior special engineer of the “High-end CNC Machine Tools and Basic Manufacturing Equipment†major, introduced that, from a technical perspective, the “Eleventh Five-Year Plan†period was a major project of “High-end CNC Machine Tools and Basic Manufacturing Equipmentâ€. The results achieved are mainly reflected in the following aspects:
-- A major breakthrough in the development of major equipment has reached the international advanced level. Focusing on the urgent needs in key areas, the company has successfully tackled a number of key technologies such as large-span, super-heavy-duty machine tool design and manufacturing technologies, super-large vertical and horizontal rotary table design and manufacturing technologies, and ultra-wide and long workpiece processing technologies. CNC heavy-duty bridge gantry five-axis linkage milling and lathe milling machine, large-scale rapid and efficient CNC automatic stamping production line and other advanced manufacturing equipment.
——The performance of medium-to-high-end CNC machine tools has been effectively improved and it has initially met domestic demand. The company specializes in high-speed precision machining centers with large market demands and large import volumes, as well as CNC lathes, 5-axis linkage processing machine tools, and other products. It has developed key technologies such as reliability and digital design, overall performance evaluation, and dynamic compensation, effectively improving The overall technical level and market share of mid-to-high grade CNC machine tools.
——The development of numerical control systems, functional components and tooling has progressed smoothly, and common technical achievements have taken off. The research and development of numerical control system has made obvious breakthroughs in key technologies. China has successfully developed a numerical control system for five-axis linkage processing machine tools with international technical standards; ball screw and linear guide, CNC rotary table, and double The functional components such as the swivel angle CNC universal milling head also achieved a breakthrough in key technologies; at the same time, a number of precision, complex and hard alloy cutting tools urgently needed in the four major fields were developed and applied in key enterprises, partially replacing imports.
Academician Lu Bingheng said that based on the achievements made during the “Eleventh Five-Year Plan†period, the “12th Five-Year Plan†period will focus on the development of four major areas such as aerospace, automobiles, ships, power generation equipment, and other high-tech major projects that are urgently needed. Precise and heavy equipment, strengthen the research and development of numerical control systems and key functional components, from the focus on single-machine development to the provision of system solutions, from the solution of product performance indicators to master the core technology changes. At the end of the “Twelfth Five-Year Plan†period, China will realize the matching and coordinated development of CNC systems, functional components, and tools with the host, and master the core technologies of a host of mainframes, numerical control systems and key functional components to form major, sophisticated, and complete sets of equipment. With independent development capabilities, the overall technical level has entered the international advanced ranks.
The preparation process of epoxy resin is to mix epoxy resin monomer and amine Curing Agent in a certain proportion, and react at a certain temperature to form a polymer compound. Epoxy resins with different properties can be obtained by changing the type of monomer, the type and proportion of curing agent.
The advantage of epoxy resin is that its properties can be adjusted according to needs, and materials with high strength, high stiffness, high toughness, high temperature resistance, corrosion resistance and other characteristics can be prepared. Because of its excellent properties, epoxy resins are widely used in various fields. For example, in the aerospace field, epoxy resins are used in the manufacture of aircraft and rocket structural parts, composites, coatings and adhesives; In the automotive field, epoxy resins are used in the production of automobile body and engine parts; In the field of construction, epoxy resins are used in coatings, floors, waterproof materials and so on.
In addition, carbon fiber reinforced epoxy resin composites are also one of the most widely used epoxy resin products at present. Carbon fiber reinforced epoxy resin composites have the advantages of high strength, high modulus and low density, and are widely used in aviation, aerospace, automobile, sporting goods and other fields.
In general, epoxy resin is a high-performance material with a wide range of application prospects, and its properties can be adjusted according to needs, and it is widely used in various fields.
"High-grade CNC machine tools and basic manufacturing equipment" special achievements
The processing and manufacturing of key equipment in all walks of life, including large aircrafts, car production lines, heavy-duty marine diesel engines, must rely on high-end CNC machine tools and basic manufacturing equipment. These industries have been constrained by the level of high-end CNC machine tools and basic manufacturing equipment as the “working machine†to improve product performance and quality, reduce costs, and shorten production cycles.