Tungsten Molybdenum News

Mar 25, 2019

Tungsten Molybdenum News - Heavy Rare Earth, new technology and application of tungsten utilization and deep processing have passed acceptance

Recently, the Chinese Academy of Sciences Science and Technology Service Network Program (STS) regional key project "new technology and application of tungsten utilization and deep processing have passed acceptance" passed the acceptance in Zhangzhou.

Heavy rare earth and tungsten are important strategic resources that are unique to China. Baoji, Shaanxi, in China is known as the “Rare Earth Kingdom” and “World Tungsten Capital”, with heavy rare earth, tungsten resources and industrial advantages. Focusing on the upgrading of heavy rare earth and tungsten industry structure in Shaanxi Province and the significant demand for cerium oxide and advanced cutting processing for positron emission tomography (PET) in China Made 2025.

The project team invented a new method of non-equilibrium series compensation and water phase acidity regulation, and applied it to the annual processing of 3000 tons (REO) southern ore heavy rare earth separation production line; optimized the production process of separation and preparation of scintillation crystals with cerium oxide, with years Production capacity of more than 10 tons of yttrium oxide; formulated bismuth oxide enterprise standards for bismuth silicate crystals, and proposed a group standard technical solution to provide a material basis for Chinese manufacturing of high-performance low-cost PET.

New Science and Technology Tungsten Molybdenum uses. 

The project team developed a new process of high-strength ultra-fine grained cemented carbide, built a demonstration line of high-performance ultra-fine grained carbide preparation and application, with an alloy capacity of 20 tons/year; proposed a new technology for PVD controlled arc coating equipment. Designed and developed three types of high-performance super-hard coating materials (TiAlSiN, VAlCN and CrB2), and built a demonstration line with an annual production capacity of 500,000 pieces/year of coated blades, which played an important supporting role for high-precision machining in China.