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China's metal cutting tool materials continue to grow
In the world-wide industry, the proportion of tool consumption is about: high-speed steel tools accounted for 35%, diamond and cubic boron nitride tools accounted for 10%, and welded carbide tools, overall carbide and indexable carbide accounted for the rest. For example, if we use cobalt-containing high-performance high-speed steel or even powder metallurgy high-speed steel (P/MHSS) to replace the common high-speed steel, our high-speed steel tool manufacturing level can also be a step up.
15
2012
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11
Manufacturing Method and Application of Diamond Cutting Tool
With the rapid development of automobile, aviation and aerospace technology, the requirements for material properties and processing technology are increasing day by day. New materials such as carbon fiber reinforced plastics, particle reinforced metal matrix composites (PRMMC) and ceramic materials are widely used. These materials have high strength, good wear resistance, low coefficient of thermal expansion and other characteristics, which determines their machining tool life is very short. The development of new wear-resistant and stable superhard cutting tools is the subject of research in many universities, research institutes and enterprises. Diamond set mechanical, optical, thermal, acoustic, optical and many other excellent properties in a body, with high hardness,
01
2012
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12
Microwave plasma chemical vapor deposition
Chemical vapor deposition CVD method to grow polycrystalline diamond film came out in the mid -1980 s. Single crystal CVD diamond began to be developed in the late 1990 s. By the early 2000 s, element 6. Carnegie, Apollo and other companies had successfully grown, but failed to form a market. At the beginning of 2012, Singapore's IIa Company commercialized colorless high-quality jewelry diamonds grown by microwave plasma chemical vapor deposition from small to carat grades. Its selling price is 1/3 to 1/2 lower than that of natural diamonds of the same grade, which shocked the natural diamond market. In fact, single crystal jewelry diamonds are only a small part of the CVD function
14
2014
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11
Guangzhou Diamond Trading Center is set up and unveiled.
From November 11 to 14, the 2014 plenary meeting of the Kimberley Process was held in Guangzhou. The meeting was jointly organized by the General Administration of Quality Supervision, Inspection and Quarantine and the People's Government of Guangdong Province. Ji Bingxuan, Vice Chairman of the National People's Congress, attended the meeting and delivered a speech. Zhi Shuping, Director of the General Administration of Quality Supervision, Inspection and Quarantine, Zhao Yufang, Vice Governor of Guangdong Province, and Guangzhou Mayor Chen Jianhua, Chairman of the World Diamond Council Edward Ashcher, and representative of the Civil Society Alliance Martin Allen attended the meeting and delivered speeches.
14
2014
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11
Global diamond giants gather in Guangzhou. The day before yesterday, the 2014 plenary meeting of the Kimberley Process was held in Guangzhou. A total of 300 representatives from 43 members and 70 countries from all over the world, the World Diamond Council, the African Diamond Producers Alliance, the Diamond Development Initiative and the Civil Society Alliance attended the meeting. It is reported that the meeting will last for four days.
14
2014
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11
Http://apps.ubmasia.com/eNews/newsletter_template/374/enews_23022.html
14
2014
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