Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
2013年7月18日星期四
China will tungsten, antimony and rare earth mineral mining control advantages
NetEase Oct. 21 hearing that China will tungsten, antimony and rare earth mineral mining and other advantages of the implementation of total control to stop receiving tungsten, antimony and rare earth minerals such as three protective mining specified minerals exploration and mining rights application; while prospecting for coal also suspended accepted. This is the Vice Minister of Land and Resources, China Geological Survey Bureau Secretary Wang Min, the 20th in 2009 China International Mining Conference revealed.
Wang Min also said that the Chinese government will also develop national molybdenum plating planning and the national geological survey planning, to further promote the integration of resource development, and guide enterprises to adopt acquisitions, mergers and joint stock holding, etc. Integration of small mines to improve all kinds of large-scale exploitation of mineral resources and intensive utilization of mineral resources to promote the use of pattern.
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