Shenzhen City Taihuaxin Metal Products Co., Ltd.

Zirconium (Zr) as a rare titanium group elements, there are very prominent nuclear properties, mainly for the nuclear industry, reactor materials (does not absorb neutrons), China's nuclear power plants, nuclear submarines a year to spend a lot zirconium; Zirconium is a hard metal, the melting point of 1800 degrees Celsius, the melting point of zirconia is as high as 2700 degrees Celsius, the performance of all aspects of its greatly superior to titanium, making it more precious than that of titanium for aerospace materials, nuclear submarines with the zirconium and zirconium alloys for nuclear fuel The package sets and pressure pipe, steel added in just one-thousandth of zirconium metal, hardness and resistance to elevated temperature will be surprisingly improved the manufacturing armored vehicles, tanks, artillery and other important material for weapons, ammunition Tian Jia after zirconium metal explosive power and increase the burning area, the principle is made use of potassium chlorate and the role of zirconium metal to produce strong thermal effects of light and great energy.

Zirconium atomic energy industry is the ideal material, niobium and tantalum has excellent thermal stability as contained in the military and electronics industries are important applications, they also still have a very excellent corrosion resistance, with their production of composite materials has been widely used Chemical, acid engineering industries.

Zirconium has outstanding core performance, its high temperature strength and hard seat is far greater than other synthetic metals. According to expert analysis: zirconium of high temperature up to 2800 degrees, is the development of nuclear energy industry indispensable material. Large nuclear power plants in general are of zirconium materials, the current global zirconium market demand, its subsidiaries, zirconium zirconium Valley technology products exported to Europe, America and Southeast Asia and the region, zirconium products widely used in aerospace, atomic energy, nuclear submarines and other military defense equipment tech fields.

Zirconium is a rare metal, because of its amazing corrosion resistance, high melting point, high hardness and strength characteristics, the product is widely used in aerospace, military, nuclear reactions, atomic energy, medicine and other fields. "Shenzhou VI" on the use of anti-corrosive, high temperature titanium products, far less corrosion resistance of zirconium, the melting point of 1600 degrees Celsius, while the melting point of zirconium in the 1800 degrees Celsius, the melting point of zirconia is as high as 2700 degrees, so the zirconium as aerospace materials, all aspects of its performance significantly superior to titanium, making it than the "Titanium" is also valuable aerospace materials. Zirconium titanium group elements as a rare, with very prominent nuclear properties, mainly for the nuclear industry, reactor materials, zirconium metal or manufacturing armored vehicles, tanks, artillery and other weapons, an important material.

Zirconium and titanium have many similar physical and chemical properties. For example, they have a high melting point, titanium: 1668 ℃, pure zirconium: 1852 ℃. The chemical activity of zirconium and titanium are high, and Zirconium higher than titanium, but the surface passive film can form a dense, have high corrosion resistance. In most corrosive media, the corrosion resistance of zirconium better than titanium, which is why zirconium expensive than titanium, but many still use chemical equipment to produce zirconium reasons. Because zirconium and hafnium in zirconium ore often symbiotic, the content of hafnium in zirconium mineral zircon content of about 2% -3% of zirconium and hafnium in all aspects of physical and chemical properties are similar, zirconium and hafnium from zirconium ore symbiotic create a hafnium content of less than 0.01% zirconium high cost, but also due to zirconium and hafnium in the physical and chemical properties are very similar, so the production of chemical grade zirconium is not necessary to reduce one of the hafnium content, the general content of hafnium in zirconium does not exceed to 4.5%. Although nuclear grade zirconium zirconium material of the standard, but not chemical grade zirconium national standards or industry standards (in preparation). Of chemical and zirconium is generally used by the U.S. ASTM standards, in fact, no other countries chemical grade zirconium and more generally the national standard, ASTM standard.
Passivation of the metal zirconium is also very easy with oxidation together, form a dense surface passive film is most tolerant zirconium organic acids, inorganic acid, alkali, salt, hot water and liquid metal corrosion. Boiling point at atmospheric pressure and temperature all about the concentration of hydrochloric acid has excellent corrosion resistance, but more than 149 ℃ in the presence of hydrochloric acid produces hydrogen possible. Zirconium can be used for about 250 ℃, the mass fraction of less than 70% nitric acid, but little concentrated nitric acid in water is easy to get angry. Zirconium in the organic acid corrosion, but in the hydrofluoric acid, sulfuric acid, concentrated phosphoric acid, aqua regia, bromine, hydrobromic acid, fluoride acid, calcium hypochlorite, fluoride is not boric acid corrosion. Chloride as the oxidizing copper chloride, ferric chloride solution is not corrosion, but the chloride solution in reducing corrosion.
Zirconium in the air when, 425 ℃ seriously from the skin, 540 ℃ to form a white zirconium oxide, 700 ℃ or more oxygen brittle. Zirconium and nitrogen in the reaction above 400 ℃, 800 ℃ about a strong reaction. Vacuum annealing can not remove the oxygen and nitrogen in zirconium. Started above 300 ℃ zirconium hydrogen, will produce hydrogen embrittlement, can eliminate 1000 ℃ vacuum annealing of hydrogen.