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The experts of the appraisal meeting are the top domestic industry authoritative experts from China Machine Tool Association Superhard Materials Branch, Zhengzhou Abrasives Grinding and Grinding Research Institute, Zhengzhou University School of Materials Science and Engineering, Henan University of Technology School of Materials, and High-tech Zone Material Industry Park. composition. At the appraisal meeting, the project technical appraisal experts carefully listened to the 20/30 coarse-grain high-grade synthetic diamond product project development report made by the person in charge of the project development of Zhongnan Diamond Company and the 30/60 of the project leader of Zhengzhou Zhongnan Jiete Superhard Materials Co., Ltd. The project development report of high-grade coarse-grained cubic boron nitride products, and all the technical data and relevant identification data provided by the project development unit were consulted. The members of the expert group also carefully observed the 20/30 coarse-grain high-grade synthetic diamond under the microscope. And 30/60 high-grade coarse-grained cubic boron nitride product samples, and inquired with the company's project developers. The expert group gave a high evaluation of these two projects, and agreed that the 20/30 coarse-grain high-grade synthetic diamond technology project of Zhongnan Company optimized the design and synthesis of synthetic equipment, pressure transmitting medium and synthetic core column manufacturing and assembly structure. The research on key technologies such as effective temperature control solves a series of technical problems in the process of coarse-grain high-grade diamond synthesis, breaks through the bottleneck of coarse-grain high-grade diamond production technology, and establishes a whole set of new synthetic technology and methods. The 20/30 coarse-grain high-grade synthetic diamond products produced by this technology have been tested by the National Abrasives Quality Supervision and Inspection Center. The technical indicators are far superior to the requirements of JB/T7989-1997. Advanced, filling the blank of the domestic synthetic diamond industry can not produce high-grade diamond products of 20/30 grain size in decades. The products not only replace imported, but also have a strong impact on the international market with significant cost performance advantages.
The 30/60 high-grade coarse-grained cubic boron nitride project technology solves the technical problem of high-pressure synthesis of high-grade coarse-grained cubic boron nitride by high-pressure equipment and top hammer by high-pressure equipment and top hammer. The domestic gap is at the leading level in China, and the tools made by the user's use certificate have reached the advanced level of foreign tools and can completely replace imports.
The successful development of the 20/30 coarse-grain high-grade synthetic diamond project technology is the result of the continuous research and development of the technology research and development team of Nanyang Zhongnan Diamond Co., Ltd. Zhongnan Diamond Co., Ltd. adheres to the innovative concept of “Technology Leading, Innovative Future†and regards technological innovation as the driving force for sustainable development of the company. In 2001, under the technical blockade of developed countries, the company's technology R&D team took the lead in applying powder catalyst technology in China through unremitting exploration and independent innovation, ending the history of the backward sheet-like catalyst process in China for more than 30 years. In 2004, through independent innovation, the company used six-face top technology to produce high-grade diamond products that can be synthesized and produced by foreign two-side presses, rewriting the myth that the diamond industry can only synthesize and produce high-grade diamonds on two-sided presses. China has truly mastered the core manufacturing technology of high-grade products, and famous foreign companies have begun to look at China's rapidly developing diamond process manufacturing technology. In 2006, the 30/40 grain size coarse-grain high-grade diamond was successfully developed, put into production in large quantities, and entered the domestic market, which had a great impact on the international market. Famous foreign diamond companies expressed their amazement at the strong technological innovation capability of Nanyang Zhongnan Diamond Co., Ltd. Today, only one year away, Nanyang Zhongnan Diamond Co., Ltd. has successfully developed 20/30 coarse-grain high-grade diamond, and transferred to large-scale mass production. In just a few years, relying on technological innovation Nanyang Zhongnan Diamond Co., Ltd. Constantly refreshing the technical standards of the industry, showing the company's strong technological innovation capabilities, the company has also achieved rapid development, continuous improvement in business performance, sales revenue and profits have doubled. At present, the comprehensive strength has grown from the first in Asia to one of the most influential companies in the diamond industry in the world. In the future, the company will continue to strengthen the intensity of scientific and technological innovation and target management, expand its influence in the international market, further expand the product chain of the super-hard materials industry, and further consolidate the company's dominant position in the international and domestic markets of the super-hard materials industry. Leading the world in the superhard materials industry to make greater contributions.
The successful development of the above two product research projects marks that China's high-grade diamond manufacturing technology has reached the international level, and it also marks that China has entered the ranks of the world's diamond manufacturing powers from the world's diamond manufacturing countries. .jpg)
Nanyang Zhongnan Diamond Co., Ltd. independently innovated and achieved fruitful results
— Nanyang Zhongnan Diamond Co., Ltd. successfully passed the 20/30 coarse-grain high-grade synthetic diamond scientific and technological achievements appraisal. On August 25, 2007, it was entrusted by Henan Science and Technology Department. Henan Provincial Defense Science and Technology Commission hosted the Nanyang Zhongnan Diamond Co., Ltd. in Zhengzhou. The 20/30 coarse-grain high-grade synthetic diamond project and the scientific and technological achievements of the 30/60 high-grade coarse-grain cubic boron nitride innovation fund project undertaken by Zhengzhou Zhongnan Jiete Superhard Materials Co., Ltd., the two technologies successfully passed the expert group appraisal Both technologies have broken the long-term monopoly of foreign technology on this technology, once again filling the blank of domestic coarse-grain high-grade diamond and high-grade coarse-grained cubic boron nitride products that could not be produced for decades.