knowledges

The Utilization Of Secondary Resources Makes The Refractory Metal Reborn In The Furnace

2024-01-05 18:00:06

Tungsten, tantalum, niobium, rhenium and molybdenum... Refractory metals are of great importance in the fields of atomic energy, aerospace, electronic information, medical treatment and other high-tech fields that involve national security and national economy and people's livelihood. However, in the past 10 years, most of the tungsten resources consumed by the world tungsten industry come from China, resulting in a sharp decline in the reserves of such high-quality strategic resources in China.

Refractory metals

26, the reporter learns from Beijing institute of technology, ten years grinding sword, by the Beijing institute of technology, China shipbuilding industry corporation DiQiYiBa research institute, China institute of atomic energy of kunming university of science and technology and the project team, based on the secondary resources use high-end refractory metal products research and development and application of a major breakthrough.


"By applying the basic research and industrialization, the team created from recycling waste, to electronic WF6 gases, high purity tungsten spare parts and other products the whole chain of industrialization technology, break through the WF6 high fluoride production and purification, high purity tungsten target materials, tungsten heater, different atmospheric pressure chemical vapor deposition of tungsten crucible manufacturing, based on exhaust gas using plasma chemical preparation of high-purity ultrafine tungsten powder, by-products of HF F2 / NF3 and H2 electrowinning and its application in the production and restore WF6 and other key technology." "Said tan chengwen, a professor at the Beijing institute of technology who is in charge of the project.


After about 10 years of efforts, the project team has developed a series of high-end products such as high-purity WF6, ultra-high-purity tungsten target, high-purity tungsten components for ion implantation machine, high-performance tungsten heating body, and high-purity special-shaped tungsten crucible.


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