research of China's cemented carbide has become broader

 

Cemented carbide, since the early 1920 s invented by scientists in Germany, with its "widia" (like a diamond), the name of the first and make tungsten wire drawing die for industrial applications, to replace the expensive diamond drawing die at that time.

 

China's cemented carbide started although late, but development is rapid. At present, the carbide mold has largely serialization and standardization. From the point of development in recent years, China's cemented carbide mould research and design theory has been deeper and more scientific, and more widely applied.

 

For a long time, the development of Chinese industrial technology, mainly tracking imitate technology independent innovation consciousness, weak capacity for independent innovation has become an important problem restricting the development of the new material. "Silicon purification - the silicon wafer production - cell production - component packaging" of the photovoltaic industry chain, for example, upstream of the industry chain of high purity silicon material production of high technical content, high added value, although the Chinese as the first solar cell production country, but because of the lacking of polysilicon purification technology in China, the Chinese photovoltaic industry the main business of most enterprises is low value-added "cell production" and "components encapsulation, scale of photovoltaic industry in China has no technology.

 

From the point of innovation resources into China's new materials, r&d is insufficient practical problems restricting the development of China's new materials industry. Mainly manifested in three aspects: one is the research and development of talent investment. China's new materials industry lack of high-level engineering and technical personnel and management personnel, especially the lack of innovative leaders and, foreign-oriented talents; In addition, the mechanism of China to attract high-level talent environment still needs to be improved. The second is the insufficient r&d investment. To China's cemented carbide field as an example, the technology research and development costs accounted for the proportion of sales income of less than 3%, compared with 5% two percent lower than the proportion of high and new technology enterprise. Third, test equipment, instruments and other items used in the technology innovation especially dedicated equipment investment still to be strengthened, such as due to the high temperature tester, ultrasonic detector, oxygen and nitrogen analyzer, scanning electron microscope and other specialized equipment is expensive, in serious shortage.