On October 24th, the Superhard Materials Branch of China Machine Tool Industry Association, the Superhard Materials and Products Committee of China Materials Research Society, the State Key Laboratory of Superhard Materials Abrasives, and the magazine of Diamond and Abrasives Engineering. The 7th Zhengzhou International Superhard Materials and Products Symposium and the 55th Anniversary of the Birth of China's Synthetic Diamonds were co-sponsored at the Wanda Wenhua Hotel in Zhengzhou. More than 500 experts, scholars and business representatives from the superhard materials and products industry attended the conference.

Mr. Liu Yingfeng, Deputy Director of Science and Technology Department of Henan Province, Mr. Wang Xu, Chairman of Supervisor of China Machine Tool & Tool Industry Association, and Mr. Yan Ning, Chairman of Superhard Materials Branch of China Machine Tool Industry Association attended the meeting. Professor Wang Guangzu, the important participant in the birth of China's first synthetic diamond, Mr. Xu Xipeng, President of the Overseas Chinese University, Mr. Wang Chengyong, Vice President of Guangdong University of Technology, Mr. Qu Lingbo, Vice President of Zhengzhou University, and Ms. Liu Bingbing, Director of the State Key Laboratory of Superhard Materials of Jilin University, were invited as special guests. Guests attended this meeting. The opening ceremony of the meeting was hosted by Sun Zhaoda, Secretary General of the Superhard Materials Branch of China Machine Tool Industry Association.

Mr. Liu Yingfeng, Deputy Director of Science and Technology Department of Henan Province

Mr. Wang Xu, Chairman of the Board of Directors of China Machine Tool Industry Association

Yan Ning, Chairman of the Superhard Materials Branch of China Machine Tool Industry Association

Sun Zhaoda, Secretary General of Superhard Materials Branch of China Machine Tool Industry Association

In his speech, Mr. Liu Yingfeng, deputy director of Henan Science and Technology Department, introduced the achievements of scientific and technological innovation in Henan Province in recent years, and supported the transformation and upgrading of advantageous industries such as superhard materials. It also indicates that Zhengzhou is one of the birthplaces and main gathering places of China's superhard materials industry. It has Zhengzhou Abrasives Grinding Research Institute, Henan University of Technology, National Superhard Materials and Products Engineering Technology Research Center, and Superhard Materials Abrasives. Key laboratories and other research institutes and institutions, hope to use this conference to build a platform for the integration and development of “production, learning, research and use” in the superhard materials industry at home and abroad, deepen the development potential of the industry, expand the advantages of industrial agglomeration, and super Hard materials are bigger and stronger.

In his speech, Mr. Wang Xu, Chairman of the Board of Directors of China Machine Tool Industry Association, reviewed the development of China's superhard materials industry in the past 55 years and positively evaluated the superhard materials industry's important position in the national economy. China's diamond production has accounted for more than 90% of the world's total output, cubic boron nitride production has accounted for more than 70% of the world's total output, the quality of superhard material single crystal has reached the world's advanced level, China's superhard materials have gone through There is a glorious course from small to large, from weak to gradual. Finally, Mr. Wang Xu emphasized that he hopes that with the joint efforts of association organizations, scientific research institutions, related enterprises and industry colleagues, he will march toward the great goal of building a superhard material power.

Yan Ning, Chairman of the Superhard Materials Branch of China Machine Tool Industry Association, delivered a speech on behalf of the organizer. He said that in the new situation in the past five years, industry enterprises have closely followed the pulse of the times, intensified technological innovation, and developed a batch of new super-hard materials and products that have surpassed the world's advanced level, such as the industrialization of diamond nano-polycrystals. Large-scale synthetic gem-quality diamonds, high-efficiency high-quality diamond wire saws and functional diamond products. The emergence of these new products and new technologies has effectively promoted the transformation and upgrading of the industry. As a part of the national strategic emerging industry, the super-hard materials industry needs to continue to consolidate the position of precision, high-efficiency and environmentally-friendly manufacturing elite in the field of new materials, and continuously develop the excellent non-grinding use of diamonds and accelerate the popularization of its functional applications. To make a technical reserve for the upcoming "14th Five-Year Plan" for the arrival of the "Diamond Age."

On behalf of the branch secretariat, Secretary-General Sun expressed his heartfelt thanks to the leaders and industry friends who care and support this forum! A warm welcome to all delegates who are here today! At the same time, on behalf of the Superhard Materials Association, China's superhard materials industry advocates the construction of China's superhard materials industry with science and technology innovation as the leading principle and common development as the principle. It is determined to take the road of reform and upgrading, respect intellectual property rights, cultivate high-level talents in the industry, and provide effective power for the vigorous development of China's superhard materials. . In the end, I would like to send my colleagues in the industry to unite, not forgetting my heart, going through the storm, going forward, and creating a better future!

Professor Xu Xipeng of Huaqiao University made a report on "Development of Solidified Abrasive Grain Processing Technology for Monocrystalline Silicon Carbide Substrate".

The report introduces the application progress of consolidated abrasive grain processing in the whole process of monocrystalline silicon carbide processing. Based on the intrinsic properties of the material, according to the abrasive removal mechanism, the design, manufacture of cutting, grinding and polishing tools, through the processing effect Evaluation and damage control The entire process chain is optimized to achieve efficient and ultra-fine green manufacturing of monocrystalline silicon carbide substrates.

Liu Bingbing, director of the State Key Laboratory of Superhard Materials at Jilin University, gave a report entitled "New Structure of Carbon under Ultra High Pressure".

The report cites the typical nano-constrained fullerenes undergoing high-pressure induced new structure phase transitions, such as the unique long-range ordered crystals (OACC) based on amorphous nanoclusters, with sp3 bonds, single The allotropic of the carbon of the slanted structure (called V carbon) and the new 3D network of amorphous base materials. These findings represent a new strategy for building new carbon and superhard materials with high pressure based on nanocarbon materials.

During the coffee break, the consultants in the super-hard materials exhibition hall are constantly flowing.

Victor Ralchenko (Student Substitute), Professor of the Prokhorov Institute of General Physics, Harbin Institute of Technology and the Russian Academy of Sciences, gave a report titled "Polycrystalline and Single Crystal MPCVD Diamond: Growth and Performance".

The growth of polycrystalline diamond film and diamond single crystal by MPCVD method and its product quality are introduced. With an optimized MPCVD system, the growth rate can reach 100 μm/h at 6 kW. It also characterizes the thermal, optical, and mechanical properties of the finished product to look into its future applications in electronics, optics, and tools.

Sumitomo Electric Group and Advanced Materials Research Institute Zuo Yikang made a speech entitled "Nano-polycrystalline diamond cutting application".

The synthesis of nano-polycrystalline diamond and boron-doped nano-polycrystalline diamond was introduced, and they were used to make cutting tools. The use of NPD tools for machining carbides, high-speed dressing, mirror polishing and other cutting performance tests, and the use of boron-doped NPD cutters for high-precision processing of polycarbonate, have shown good cutting performance.

Element Six Group has made a report entitled "Processing Solutions for Aerospace Carbon Fiber Composites".

According to the report, CFRP composites currently account for 50% of the fuselage materials, and the global aerospace industry is moving towards the CFRP era. The new generation of CFRP tools enables faster, more efficient milling and drilling of CFRP with lower tool cutting forces at lower temperatures, which means that CFRP fuselage components can be produced more efficiently and quickly. Advanced PCD round-handle tool blanks create new geometries that break the barriers of aerospace tool design.

Wang Chengyong of Guangdong University of Technology gave a report entitled "Application of Diamond in 3C and Medical Fields".

It mainly introduces ultra-precision machining of diamond tools in 3C field; diamonds of various forms such as massive diamond, diamond film and nano-diamond are used as ophthalmology, dental scalpel, drug transmission and detection carrier in medical knives, medical materials, medicine and other fields. There are also broad application prospects.

Kang Renke of Dalian University of Technology gave a report titled "Application of Silicon Ultra-precision Grinding Technology and Diamond Grinding Wheel".

The report combines the research work undertaken by major national projects to introduce the technical requirements for ultra-precision grinding of large-size silicon wafers and the requirements for wafer grinding wheels for diamond grinding. Material removal and surface/subsurface damage of diamond grinding wheels The formation mechanism, the influence of the microstructure characteristics of the diamond grinding wheel on the processing quality of the silicon wafer, and the new grinding wheel and processing technology of the ultra-precision and low-damage grinding of the silicon wafer.

Zheng Chongxin University has made a report entitled "Preparation of High Quality Diamond Single Crystals and Its Prospects in Photoelectric Functions".

The report describes the many properties of diamond itself (such as band gap, electron and hole mobility and saturation rate, room temperature thermal conductivity, etc.), which is one of the ideal candidate materials for next-generation high-performance optoelectronic devices. Preparation of high quality diamond single crystals and their potential applications in photovoltaic functions, problems and possible solutions.

Zhejiang University of Technology Hu Xiaojun made a report entitled "Preparation, Doping and Photoelectric Properties of Nanodiamond Films".

The report details the nano-diamond film injection into the magazine and thermal oxidation annealing, which can improve the electrical properties of the film, and obtain the preparation method and properties of various nano-diamond films such as n-type nano-diamond film with high mobility.

Sun Fanghong from Shanghai Jiaotong University gave a report titled “New Technology for Preparation of Single-layer Diamond Abrasive Tools by Chemical Vapor Process”.

A single-layer diamond abrasive tool was prepared by hot-wire chemical vapor deposition method. The photoresist abrasive solution was used to ultrasonically vibrate the silicone and abrasive granules to uniformly and precisely seed the diamond abrasive grains on the surface of the SiC ceramic. The thickness and uniformity of the coating bond and the growth characteristics of the diamond abrasive single crystal particles were compared with the electroplated and brazed single-layer diamond abrasive tools to verify the performance of the CVD single-layer diamond abrasive tool.

The Institute of Atomic and Molecular Physics of Sichuan University has made a report entitled "Superhard Tool in Large Aircraft Manufacturing".

Superhard material tools feature high machining efficiency, long tool life and good machining quality. Based on the process route of large aircraft manufacturing, this paper analyzes the role and advantages of superhard tools in large aircraft manufacturing, and introduces three PCD tools that are mainly used in large aircraft manufacturing: PCD drill bits, PCD files and PCD spirals. Milling cutter.

Wang Hailong of Zhengzhou University made a lecture entitled "Application of TiO2/BDD Composite Electrode in Electrochemical Oxidation Treatment of Wastewater from Pharmaceutical Plants".

The boron-doped diamond thin film electrode was combined with TiO2 to prepare a nanorod-shaped TiO2 modified BDD composite electrode material with pn heterostructure and interface bonding. The electrochemical properties, microstructure and chemical composition of the composite electrode material were introduced. Treatment effect of sewage such as sewage and garbage filtrate.

According to the schedule of the meeting, at 8:30 in the morning, Li Zhihong, senior consultant of the Superhard Materials Branch of China Machine Tool Industry Association, will give an opening report of “Analysis of the Economic Operation of the Industry in 2017”, Wang Mingzhi of Yanshan University, Shen Yongkang of Taipei Medical University, Beijing. Li Chengming from the Institute of New Materials Technology of the University of Science and Technology, Peng Jin from Henan University of Technology, and Luo Jun from Yucheng Huifeng Diamond Technology Co., Ltd. will make special reports on the industry.

China Superhard Materials Network will report the whole process, so stay tuned!

Pivot Shower Door

Pivot Shower Door,Solid Brass Pivot Shower Door,Brass Swing Shower Door,Chrome Pivot Shower Door

Zhongshan Jianjie Sanitary Ware Co.,Ltd , https://www.santiaryware.com