Metallic zirconium, also known as sponge zirconium, is a silver-gray metal with a steel-like appearance and luster. Melting point 1852 secondary point, secondary point, boiling point 4377 density 6.49. Zirconium absorbs hydrogen, nitrogen and oxygen easily. Zirconium's affinity for oxygen is very strong, zirconium oxygen dissolved in 1000 ℃ can make its volume increased significantly. Zirconium is relatively stable in air. The powdered zirconium is easy to burn, and the fine zirconium filament can be ignited by a match. At high temperature, it can be directly combined with dissolved oxygen, nitrogen and hydrogen.
USES: aerospace, military, nuclear reaction, atomic energy, and the addition of metal superhard materials to manufacture bulletproof alloy steels, and can also be used as a coating alloy for uranium fuel in reactors; Zirconium tends to emit electrons at high temperatures. Product features: metallic zirconium has very strong corrosion resistance, ultra-high hardness and strength. More than 90% of sponge zirconium is used as raw material for zirconium base alloy of structure and shell material in nuclear reactor. Zirconium can be used in chemical industry, pesticide industry, printing and dyeing industry to manufacture corrosion-resistant reaction tower, pump, heat exchanger, valve, mixer, nozzle, pipe and container lining, etc. It can also be used as deoxidizer, denitrifier in steelmaking process, grain refiner of aluminum alloy. Zirconium wire can be used as grid support, cathode support and grid material, as well as electrode head for air plasma cutting machine. Zirconium powder is mainly used as a detonating agent in the arms industry. It can be used as a degassing agent in electronic devices.
With the rapid development of emerging materials and the increase of nuclear energy application demand, the zirconium industry began to usher in the golden period of investment. As an important rare metal, zirconium has the characteristics of amazing corrosion resistance, extremely high melting point, ultra-high hardness and strength and outstanding nuclear performance. With the rapid development of emerging materials and the increase of application demand in nuclear energy field, the demand for zirconium has been rapidly increasing. During the 12th five-year plan period, the main task of zirconium industry development and structural adjustment is to focus on the nuclear grade zirconium, and simultaneously take into account the demand for civil zirconium and high purity zirconium, so as to solve the problem of the nuclear grade and high purity sponge zirconium in the first place. Make full use of the imported advanced foreign technology for digestion, absorption and re-innovation; The zirconium industry will be included in the nuclear fuel system, and the detection, evaluation and quality assurance system of nuclear high purity zirconium materials will be established in the system.
