After years of tackling key problems, henan university of science and technology led a number of scientific research institutions and industry backbone enterprises to establish the "
tungsten and
molybdenum material advanced equipment and processing technology of henan industrial innovation strategic alliance" took the lead in using co-precipitation - co-decomposition method to prepare a new generation of self-generated nano ceramic particles to enhance high-performance tungsten and molybdenum alloy. The expert group agreed that the product and other relevant technical indicators reached the international advanced level through the review.
Tungsten, molybdenum and their alloys have the advantages of high melting point, outstanding high temperature strength, good thermal shock resistance, radiation protection, etc. They are widely used in aerospace, national defense and military industry, medical equipment, electro-optical energy and other high-tech fields, and have an important strategic position in the national economy. On this basis, with the support of the national natural science foundation of China and national, provincial and municipal projects, henan university of science and technology has led a number of scientific research institutions and industry backbone enterprises to establish the "strategic alliance of industrial innovation of henan province for advanced equipment and processing technology of tungsten and molybdenum materials" (hereinafter referred to as the "industrial alliance of tungsten and molybdenum").
The technology with soluble molybdenum tungsten salt, salt and the nitrate as raw material, through liquid-liquid mixing, coprecipitation, decomposition, combination of powder metallurgy technology, to develop a new generation of tungsten, molybdenum alloys and the preparation of nanometer ceramic particles reinforced, by synthesis technology, fundamentally solves the traditional way to join the rough ceramic particles and the problem of uneven distribution. At the same time, by crystallization, sintering and hot pressing technology, the tungsten and molybdenum grains were refined, and the interface with the tungsten and molybdenum matrix was well integrated, which significantly improved the strength, hardness, thermal vibration resistance and high temperature wear resistance of the tungsten and molybdenum alloy, greatly improved the service life of the tungsten and molybdenum alloy, and broadened the application range of the tungsten and molybdenum alloy.
According to introducing, tungsten molybdenum industry association was founded, original technology research, new product research and development, vigorously boost industrial optimization and upgrading, solved many technical problems, produced a number of scientific research achievements, make our country in the field of tungsten and molybdenum materials research and development in the international advantage, tungsten molybdenum processing industrial structure upgrade in China has a great role in promoting.
