Niobium 521 is a new kind of high temperature and high specific strength niobium alloy material, which can meet the technical design requirements of attitude control engine. The material has the following characteristics:
Continue Reading →Titanium was discovered in 1793 and put into industrial production in the early 1950s. At present, it has become the third metal material after iron and aluminum. It is widely used in various fields in industry, and its rapid development is related to the following characteristics.
Continue Reading →Zirconium and zirconium alloy plastic good, can be made into tube, plate, rod and wire, which tube for the main products. The processing of zirconium and zirconium alloys depends on the basic properties of zirconium and the special requirements of zirconium components for nuclear reactors. The basic properties of zirconium are: easy to be polluted by oxygen, nitrogen, hydrogen and so on, easy to stick to the mold, there are homogenous and heterocrystalline transformation.
Continue Reading →With low density, high temperature strength, oxidation resistance and creep resistance, high niobium base alloy is the most promising light and high temperature structural material in aerospace and other fields.
Continue Reading →Rare metal material technology is one of the most important subjects in the field of materials science and engineering in the new century. Modern high-tech such as information technology, new energy technology, space technology, biotechnology, superconductivity technology and other developments are closely related to rare metal materials, especially tantalum niobium new materials.
Continue Reading →Titanium is a rare metal, titanium and its alloy is known as the "metal of the future", because of its light weight, strong strength, strong heat resistance, corrosion resistance and many other excellent characteristics, is considered to have a future of new structural materials. Titanium and its alloys are not only important raw materials in aviation and aerospace industries, but also widely used in many industrial sectors such as chemical industry, petroleum, light industry, metallurgy and power generation.
Continue Reading →Zirconium is a kind of elemental metal, which is used in the atomic energy industry as a corrosion resistant chemical material under high temperature and high pressure. Zirconium surface is easy to form a layer of oxide film, with luster, so the appearance and steel similar.
Continue Reading →Tantalum has a melting point of 2980 ° c, second only to tungsten (3380 ° c) among the commonly used refractory metals, and its density is 16.67g /cm3. When annealed, tantalum has good plasticity and is stable at high temperature. It can absorb and hold gas. Tantalum is acid-resistant and biocompatible. Tantalum is widely used in electronics, chemical, medical and other industries. At the same time, tantalum is also an indispensable material for making hard alloy.
Continue Reading →Because it emits electrons easily, hafnium can be used as the cathode of an X-ray tube. Alloys of hafnium and tungsten or molybdenum are also used as electrodes for high voltage discharge tubes.
Continue Reading →Titanium has good affinity with human body connective tissue and bone epithelial tissue, and its excellent mechanical properties also reflect its advantages in medical alloys. Moreover, titanium is of low density, light weight, good corrosion resistance and comfortable to wear.
Continue Reading →The content of zirconium in the crust is 0.025%, ranking 20th. There are more than a dozen zro2-containing mineral deposits, but only two zircons (ZrSiO4) and zircon (ZrO2) have been selected for industrial use. Zircon is symbiotic with ilmenite, rutile and monazite, and can also be found in beach sand.
Continue Reading →Is the minimum 5*10-2 vacuum required by the Ta heating body vacuum heat treatment furnace at high temperature or must it be achieved before heating? As a result of the specific sample, the binder volatilization, furnace at 500℃ around the vacuum will be greatly reduced, this influence is big?
Continue Reading →Tantalum can be used as solid electrolytic capacitor with large capacity, small size and stable performance. It is used in radar, missile, supersonic aircraft and electronic computer. Tantalum also makes petrochemical heat exchangers, heaters, concentrators and reactor tanks, towers, pipelines and valves. Tantalum is also used as a component material for electron tubes and high-power tubes.
Continue Reading →Mo, Ta, W, Nb and other refractory metals with high melting point have good stability to active metals such as titanium and zirconium, which can be used to make surface layer of mould shell for precision casting. In the process of shell preparation, a layer of tungsten or tungsten oxide surface is……
Continue Reading →The ingots of niobium tungsten alloy are usually prepared by powder metallurgy and smelting. Powder metallurgy is the preparation of ingots by mixing, pressing and sintering niobium, tungsten and other elements powder into pre-alloy strips, and then using more than two times of vacuum electron beam smelting or vacuum arc smelting or the combination of the two smelting methods.
Continue Reading →Titanium alloy can be divided into: heat-resistant alloy, high-strength alloy, corrosion resistant alloy (ti-mo, ti-pd alloy, etc.), low-temperature alloy and special functional alloy (ti-fe hydrogen storage material and ti-ni memory alloy).
Continue Reading →Titanium is very difficult to extract because of its high chemical activity and the fact that it reacts with many elements, including refractories, at melting temperatures. In 1910, American scientists adopted the "sodium method" (sodium reduction TiCl4) to obtain the purity of the metal titanium, but the titanium industry did not immediately develop.
Continue Reading →Tantalum and hafnium belong to strategic metals and are widely used in the field of national defense industry. Tantalum hafnium resource in our country, although have some reserves, limited by factors such as grade, production cost and mining technology, the annual domestic tantalum hafnium far cannot meet the demand of domestic smelting, as a strategic reserve, metal tantalum hafnium imports are vulnerable to the international situation, the high temperature alloy waste contains considerable valuable metallic elements……
Continue Reading →Superalloy is the key material for manufacturing hot end parts of aerospace engine, which is mainly composed of nickel, chromium, cobalt, molybdenum, aluminum, titanium, tantalum, niobium, tungsten, ruthenium, zirconium, hafnium, platinum and iridium. It is also the core material for large power equipment, such as industrial gas turbine and high-temperature gas-cooled nuclear reactor.
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