Theoretically, tungsten carbide is a kind of super-hard material that consists of refractory metal carbides and binder phase metal and manufactured by PM (Powder Metallurgy). And at the time of cemented carbide industry has just started, most of which are made of tungsten carbide WC and cobalt Co composition, referred to as tungsten carbide cobalt. Since WC-Co has simple structure, high hardness and excellent wear and corrosion resistance, it can be widely used in cutting, drilling, molding and other industries. Besides, tungsten carbide also includes WC-TiC-Co carbides, WC-TiC / TaC / NbC-Co carbides, steel bonded carbides and so on. Common tungsten carbide grades are YG3, YG6, YG8, YG10, YG12, YG15, YG20, YT15, etc, each grade due to the different ratio of WC and Co, with different performance advantages, some suitable for semi-finishing of non-ferrous metals and alloys, some iron alloy suitable for high-speed milling, some suitable for steel forgings, stampings and castings the surface finish.

Although tungsten carbide plays an important role in cutting tools, drilling tools and molding materials because of the excellent wear resistance and toughness, compared with higher hardness of diamond products, it has begun to face the danger of being substituted in some applications. Diamond is a mineral composed of pure carbon, which is the hardest substance in nature. There is little diamond in nature, so people through high temperature and pressure to convert the carbon into diamond nowadays. This synthetic diamond has higher hardness and better performance in strength, nearly a decade of development in our country very rapidly, particularly in some of the cutting tools and handicraft industries are becoming more common. In addition, diamond is also known as super-abrasive in stone, construction, industrial processing, aerospace, electronics, precision measuring instruments and other fields. Currently, due to the rapid development of the diamond industry, it is growing at a high speed to produce a lot of new diamond tools, some far more than conventional carbide tools in performance. Especially domestic priority level of technology and equipment, mainly in small and medium sized carbide rod and plate-based, there some defects in the large carbide products, which is the focus of the future is the development of domestic carbide industry.

Recently, the school enterprise cooperation project team of multi metal concentrator of Hunan Shizhuyuan Nonferrous Metals Co., Ltd. and Central South University transform the process flow of tungsten mineral processing, primarily through technological innovation and other means to improve the grade of tungsten concentrates and the recovery rate of tungsten. Reversing the downturn situation of tungsten industry recently. Multi metal concentrator of Hunan Shizhuyuan began to flotation separation test at the end of 2014, using the original wolframite slime idle flotation device. After testing more than five months, recovery and grade of tungsten have been greatly improved, this can be applied in practical production.

After getting good results, this plant promote technology to 2000 tons / day workshop tungsten roughing in August 2015, after technicians careful debugging for a period, the whole plant rougher tungsten segment has a stable milling of ores indicators. In order to further improve the efficiency of new technology tungsten beneficiation experiments, the technicians began a 24-hour spell line system from 2016, monitoring the experimental dynamic of index in real time. As a raw material of tungsten heater, constantly improve the beneficiation process of tungsten can not only improve the quality of products, but also ensure that supply number.

The development of innovative technology also improves the recovery rate, so that resources can be repeated used, which is good for the protection of the environment and greatly reduce production costs. The successful case of this plant plays a leading role on chinese tungsten industry, which is a revolutionary breakthrough in the field of mineral processing of tungsten, and promotes the development of related industries. In the fierce market competition, enterprises are facing a number of random changes. Enterprises can inspire the original and potential innovation vitality only to make innovations constantly that can brings abundant profit.