According to reports, at present, only Sandvik has the complete production capacity of micron-sized PCBN tools. Except for micro-boron, no second company uses nano-scale PCBN granular materials to produce cutting tools. The company claims that the nanoscale PCBN, which is more rigid than synthetic diamond, has superior impact resistance and higher temperature tolerance, helping customers to increase productivity by 20 times in finishing and super finishing.
Based on the cubic boron nitride micropowder synthesis catalyzed by the Minsk Institute of Solid State Physics and Semiconductors in the Soviet Union, Micro Boron developed a composite material with high impact resistance. They have patented technology from cubic boron nitride micropowder synthesis to composite sheets and finished tools. It is one of the few companies in the world that has independent synthesis of cubic boron nitride tool technology. Micro-boron tools have attracted industry attention due to their high impact resistance, high temperature resistance and strong intermittent processing. The inlaid tools for hard metal processing - micro boron classics, and for hard metal rough Machining and semi-finishing integrated tools - Micro Boron has been widely validated.
Mr. Aleksandr Timofeev, general manager of the company, said: “China's metal cutting market has become the fastest growing market in the world in recent years, and Chinese customers are increasingly becoming high-standard, demanding and mature customers. They are constantly seeking the latest and best technology. In order to strengthen its own competitiveness, and we advocate the concept of high-efficiency cutting (HPC), we are committed to the development and application of new materials for metal cutting PCBN, which can better meet the needs of this market."
Mr. Fan Yulin, Marketing Manager of Micro Boron Technologies China, has been in the tool industry for many years. He said that in the past few years, Micro Boron has helped customers solve the problem of bearing processing and double the processing efficiency. And the automotive industry's various solutions will have a broader application market
LED Lamp Bead light-emitting principle
The terminal voltage of the PN junction constitutes a certain potential barrier. When the forward bias voltage is applied, the potential barrier drops, and the majority carriers of the P region and the N region diffuse to each other. Since the electron mobility is much larger than the hole mobility, a large number of electrons will diffuse into the P region, which constitutes the injection of minority carriers into the P region. These electrons recombine with holes in the valence band, and the energy obtained during recombination is released in the form of light energy. This is the principle of PN junction light emission.
Features of LED Lamp Beads
1. Voltage, LED lamp beads use low-voltage Power Supply, and the power supply voltage is between 2 and 4V, which varies according to different products, so it is driven by a high-voltage power supply. Safer power supply, especially for public places.
2. Current, the working current is between 0 and 15 mA, and the brightness becomes brighter with the increase of the current.
3. Efficiency, energy consumption is reduced by 80% compared with incandescent lamps with the same luminous efficiency.
4. Applicability, very small, each unit LED chip is 3 to 5 mm square, so it can be prepared into various LED lamp bead shaped devices, and is suitable for variable environments.
5. Color, changing the current can change color. The light-emitting diode can easily adjust the energy band structure and band gap of the material through chemical modification methods to realize red, yellow, green, blue and orange multi-color luminescence. For example, an LED that is red when the current is small, can turn orange, yellow, and finally green as the current increases.
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