China's superhard materials and products industry, ordinary abrasives industry and coated abrasives industry have become the world's largest countries in terms of their production capacity and output. From "big" to "strong" is the development of the world's industrial industry. The law, if our industrial policies are powerful and effective, can speed up this process. At present, China has launched the "Twelfth Five-Year Plan", a series of measures such as economic transformation, industrial restructuring, construction of innovative enterprises, and the path of low-carbon economy will accelerate the major changes in China's abrasives industry, which will change from quantitative to qualitative. The result of qualitative change will be strong. At present, China's super-hard materials industry is the first to enter the ranks of the world's powerful countries. China's diamond output in 2009 was 7 billion carats, accounting for 90% of the world's total output; cubic boron nitride (CBN) annual output was 260 million carats, accounting for 65-70% of the world's total output. It is the world's largest producer. In the past ten years, due to the large-scale production of six-sided top synthetic presses with independent intellectual property rights in China (the pressure cylinder bore is from the earliest 260 mm, the current development of 650 mm, 750 mm, 1000 mm; the press single cylinder pressure from the original 600 Ton, 800 tons, developed to the current 3,320 tons (650 mm bore) to 7,850 tons (1000 mm bore). The synthesis process from the sheet process to the powder process, not only greatly improved single-production yield (single yield) From the earliest 1 to 20 carats, to the current 200-300 carats, up to 500 carats "synthetic test bars up to 68-70 mm in diameter"), and the diamond single crystal has a breakthrough in quality and particle size. Progress (currently industrially produced gem-quality diamond, particle size up to 2.6 mm "scientific research results can reach 7-12 mm"), plus China's six-sided top synthetic press in materials, processing accuracy, simultaneous neutrality, pressure temperature Digital control technology has been greatly improved, its operation is convenient, the consumption of hard alloy top drill is low, the cost is low, the competitiveness is strong, etc. The original kind of "only two-sided top synthetic press can The conclusion of the synthesis of high-grade diamonds has become a joke. In recent years, the world's diamond companies such as the United Kingdom, South Korea, the United States, Japan, India, Iran and other countries have purchased six-sided top presses in China, and even foreign companies have purchased six-sided top presses in China. It is a factory in China. It fully demonstrates the superior performance of the six-face superhard material synthetic press that has China's independent intellectual property rights. This is the pride of the Chinese people and the pride of China's superhard materials. In terms of materials, China has entered the ranks of the world's powerful countries. China's super-hard materials and products industry will take the lead in becoming one of the industrial industries with international voice. Now diamond and CBN not only use its structural properties - hardness, in machinery, aerospace military, In the petroleum, geology, coal, stone, glass, ceramics, hardware, electronics industry, monocrystalline silicon, polysilicon and other industrial fields have been widely used. What is more gratifying is that China can also produce 7-12mm large single crystal, coarse single crystal in diamond. , fine single crystal, polycrystalline, nano single crystal diamond (detonation method), nano polycrystalline diamond (explosion method), CVD Vapor deposited diamond film) and PVD (physical vapor deposited diamond film), diamond composite sheet (PCD, PDC); in the cubic boron nitride (CBN) can produce a variety of crystal form intact, high intensity dark brown, golden yellow, black CBN single crystal and PCBN composite sheets of various grades such as brown, brown black, amber, black, etc. It can be said that China's super-hard material industry has developed rapidly and has a full range of products. At the same time, it has created conditions for the development and application of diamond in function. Optics, electricity, thermals, acoustics, etc. all have good application prospects. For example, in photovoltaic, LED, optical lens, heat sink, semiconductor, speaker and other industrial fields will be widely used, with a broad space for development, it can be said that China Super The spring of the hard materials industry has arrived.
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