Titanium alloy wire
Firmetal, 2018-05-30 09:40:00 PM
Titanium alloy wire has acid-washed surface, bright surface and carburized surface.
Titanium alloy is a stable carbide with high hardness. The growth of the carbonized layer between titanium and carbon is determined by the diffusion rate of titanium in the carbonized layer.
Why is the us and Europe attached to this metal?
Firmetal, 2018-05-29 09:36:00 PM
Rare earth is extremely important to develop weapons of a strategic resource, without it, for a country, is equivalent to in the process of development has been a big resistance, in order to maintain military superiority, many countries choose to carry on the strategic reserves of rare earth, but there are also a kind of metal, storage capacity, less than a rare earth but military value is more important, what is it?
Continue Reading →The wet production process of niobium compound
Firmetal, 2018-05-28 09:30:00 PM
Tantalite and columbite whether natural form, or from the enrichment of tin slag, in particular temperature HF acid decomposition, associated elements and tantalum niobium dissolved, its form is H2NbF7 and H2TaF7, filtered in removing impurity (alkaline fluorides and rare element), the liquid phase in a continuous mixing tank with HF acid or mixed with organic phase such as MZBK extraction column, tantalum niobium in organic phase, and the impurity elements such as Fe, Mn and Ti in water phase and the residual liquid.
Continue Reading →The distribution and production of rhenium resources
Firmetal, 2018-05-25 09:32:00 PM
Rhenium is a kind of scare metal content in the earth's crust to 10 ^ (7) %. Rhenium is very difficult to be used independently in the minerals such as molybdenum, copper, lead, zinc, platinum, tantalum, niobium and rare earth. The raw materials with economic value are molybdenum and copper concentrate, among which molybdenum is the main source of rhenium. The content of rhenium in normal molybdenum concentrate is between 0.001% and 0.031%. But the molybdenum concentrate from porphyry copper deposit is 0.16%. In 2006, Russia announced that Russia national non-ferrous metal research institute experts TuLu general found on the island in the southern kurils pure rhenium ore reserves, this is by far the world found that pure rhenium at first.
Continue Reading →Tantalum-niobium prices continue to rise due to shortage of supply
Firmetal, 2018-05-24 09:30:00 PM
Tantalum niobium prices continued to rise this week, with the price of tantalum rising to $100 a pound from $80 a pound on Monday, up to $20 a pound. Niobium concentrate prices rose from around $17 a pound on Monday to around $17.5 a pound, or about $0.50 a pound.
Continue Reading →Lanthanated tungsten electrodes
Firmetal, 2018-05-22 09:35:00 PM
The most common lanthanum tungsten electrode contains lanthanum dioxide (La203), known as lanthanum oxide. In Europe and Japan, lanthanum tungsten electrodes have been the most commonly used alternative to thorium tungsten electrodes in most applications. There are three kinds: lanthanum oxide, lanthanum oxide 1.5% and lanthanum oxide 1%. Lanthanum trioxide has the lowest electronic escape work, the easiest to start the arc, the lowest point temperature, which helps to prevent grain growth and improve the service life. By testing the lanthanum tungsten electrode, which contains 2 percent lanthanum, it shows that if there is no overload current, the life expectancy is longer than thorium tungsten, which is easier to start in most USES.
Continue Reading →Artificial polycrystalline diamond
Firmetal, 2018-05-21 09:30:00 PM
Synthetic polycrystalline diamond (PCD) is a polycrystalline material which is polymerized with the solution of diamond micropowder and solvent under high temperature and pressure. Generally, it is made of the whole round piece with hard alloy as the matrix, which is called polycrystalline diamond composite film. According to the thickness of the diamond matrix, the composite films have different specifications such as 1.6mm, 3.2mm and 4.8mm. The thickness of polycrystalline diamond is generally around 0.5mm. At present, the PCD diameter of domestic production has reached 19mm, while the diameter of the largest composite film of GE company in foreign countries is 58mm, and DE beers reaches 74mm.
Continue Reading →Coated glass
Firmetal, 2018-05-18 09:45:00 PM
Glass coating is a kind of chemical polymer materials, because of its high density of chemical characteristics, so has been applied in the field of auto beauty, at the same time the glass coating, high gloss, resistance to oxidation, the characteristics of the acid and alkali resistance, uv resistance, is used to paint coating, surface gloss is very good, and the paint and isolated from the outside world, has played a very good protection effect.
Continue Reading →CVD temperature has an effect on tantalum coating
Firmetal, 2018-05-17 09:43:00 PM
Refractory metal tantalum with high melting point (2996 ℃, second only to W, Re), high temperature and high strength, low thermal expansion coefficient, electrical conductivity, good welding performance, high corrosion resistance can be comparable to platinum (room temperature), etc, are widely used in electrical, chemical, aerospace, medical, military and other fields, is the indispensable material in high-tech fields. However, tantalum has very few reserves in the earth, only 0.0002% of the earth's crust quality. Therefore, the use of tantalum resources is of great significance. Chemical vapor deposition (CVD) is a chemical gas instead should generate solid sediments in the heated solid surface process, with deposits of high purity, density, sedimentary speed, can be multielement alloy deposition, etc. Because of CVD technology unique advantages, at present this technology has been widely applied in preparation of inorganic coating material surface modification, material purification, development of new crystal and various single crystal deposition, glassy state of inorganic membrane materials. A layer of tantalum coating is deposited on the inner wall of the workpiece or container by chemical vapor deposition, which can greatly reduce the use of materials while ensuring the good corrosion resistance of the materials. Hot wall type resistance furnace heating, commonly used chemical vapor deposition reactor wall temperature and deposition substrate temperature, so the reactor wall also deposition reaction, waste of raw materials and cause the pollution of the reactor. Cold wall chemical vapor deposition using induction heating mode, the only substrate is heated, it can only happen on matrix deposition reaction, greatly reduces the waste of raw materials, to solve the pollution problem of the reactor, to enhance the generality of the reaction mechanism. In the study of chemical vapor deposition of tantalum, tantalum sediments organization performance under different process conditions change rule, in order to gain good performance of tantalum sediments, has very important practical significance and theoretical value.
Continue Reading →Metal foil rolling
Firmetal, 2018-05-16 09:30:00 PM
Foil rolling is a metal strip or sheet metal with a thickness of 0.02mm. Gold, silver, aluminum, copper, nickel, iron, tantalum, niobium, tungsten, molybdenum and other metals can be rolled into foil. Gold, silver, aluminum, copper foil is mainly used for decoration or packaging, etc., and other metal and alloy foil is mainly used in electronic industry, such as copper, nickel, chromium and nickel resistance alloy foil used to make load resistance strain gauge, precision and recording, video recording head clearance, such as tungsten foils for special tube, soft magnetic iron nickel alloy foil used to make the micro high frequency pulse transformer, etc. Rare earth metal foil is used in atomic energy reactors.
Continue Reading →The research progress of tantalum and porous tantalum surface modification in tissue engineering and stomatology
Firmetal, 2018-05-15 09:26:00 PM
Tantalum metal (Tantalum, Ta), excellent corrosion resistance, and has the characteristics of high melting point, strength, wear resistance, are widely used in refractory material, including aircraft, rockets, and need high strength parts industry. In addition, the metal tantalum has good physical and mechanical properties, good biological compatibility, performance after titanium became a new type of biological materials, is widely used in dental implant implantation, treatment of femoral head necrosis, coronary stenting, artificial acetabulum prosthesis implantation, surgical sutures and other related medical field.
Continue Reading →Tungsten-rhenium preparation
Firmetal, 2018-05-14 09:26:00 PM
Preparation can adopt steel ingot billet forming or cold isostatic pressing into a shape alloy, compact in hydrogen hanging furnace or the intermediate frequency furnace or through the compact hydrogen resistance furnace burning into relative density of 85% ~ 85% density of spindle, also have use ingot hot isostatic pressing legal system. Sintered ingots are made of different kinds of processing materials, such as rod, wire, sheet, foil and strip, etc. Have good processability of rhenium tungsten alloy composition is W - (18 ~ 26) Re, alloy process recommended best forging temperature is 1500 ℃ and the annealing temperature is 1600 ~ 1800 ℃. Re content of >26% alloy, the allowable phase content is limited. Although this second phase precipitation leads to material reinforcement, its processing performance is still very good. Re content < 18% alloy can be processed smoothly, but the initial processing temperature is higher.
Continue Reading →Tungsten-rhenium alloy wire
Firmetal, 2018-05-11 09:22:00 PM
Rhenium tungsten wire, tungsten rhenium alloy wire) or Sapphire tungsten-rhenium alloy wire (tungsten rhenium alloy wire for Sapphire) is base in rhenium tungsten alloy elements, is a kind of tungsten alloy. The typical rhenium content in the alloy is 1%, 3%, 5%, 20%, 25% and 26%, etc. The microcracks are often produced by tungsten on the grain boundary, and the expansion of these microcracks is an important reason for the fracture of tungsten. Tungsten-rhenium alloy in easy forming twin deformation process, and thus reduce the stacking fault energy, reduce the dislocation movement of grain boundary impedance, resulting in dislocation mobility increases, prompting tungsten solution to soften. This phenomenon is called "rhenium plasticizing effect". In the tungsten-rhenium alloy series, the plasticization effect of rhenium is obvious, and the plasticization effect of rhenium is reduced.
Continue Reading →Metal wear and corrosion
Firmetal, 2018-05-10 09:20:00 PM
Metal to metal, metal - on - metalbearings, MoM) weight interface prosthesis was put forward as early as more than 40 years ago, early due to reasons such as compatibility of materials, production process, loose, high incidence of complications such as dislocation, metal ions pollution, thus being abandoned. With the improvement of new materials, design, manufacturing process and implantation technology, the friction coefficient between metal and metal bearing surface is significantly reduced. Due to its wear do not produce polyethylene wear particles at the same time, significantly reduce the incidence of bone dissolve, larger ball head and the use of metal to metal prosthesis can significantly reduce the dislocation rate, improve the patient's hip motion. These advantages make the metal to metal weight interface prosthesis has more than 10 years ago in the United States and other countries are all the rage, and some large hospitals in China gradually larger for young patients to carry out the surface displacement and larger ball head metal to metal THA surgery, good clinical results have been achieved.
Continue Reading →Research status and progress of medical titanium alloy implants
Firmetal, 2018-05-09 09:33:00 PM
Biomedical titanium alloy materials have become the main raw materials needed in the global surgical implantation and orthopedics products. The 3D printing technology can customize the biomedical materials according to the needs of different patients, and control the microstructure precisely. Therefore, the combination of this emerging technology and biomedical materials is a major research trend in the future biological histological engineering. In recent years, different medical materials have been prepared by 3D printing technology for animal tissue repair and other experiments. In this paper, the research status and progress of 3D printed titanium alloy biomaterials are briefly reviewed.
Continue Reading →Ti-6Al-4V titanium alloy large diameter thin-wall thread machining technology research
Firmetal, 2018-05-08 09:35:00 PM
For Ti-6Al-4V titanium alloy large diameter thin-walled thread turning processing large deformation, and the diameter value control strictly, high surface quality requirement, the optimization tool and feed way, based on the use of mechanical analysis and the simulation method to complete the tooling optimization design; Through the study of tool wear test and chip shape, a suitable combination of machining parameters is determined. Compared with the test results of thread diameter, the better thread detection method was determined and the qualified thread was machined. The thread diameter of the part is M320, the pitch is 4 mm, the wall thickness is only 3 mm, the diameter ratio is 102, and the dimension and contour accuracy of the type face are higher, and the diameter of the thread has the requirement of size control. Ti-6al-4v titanium alloy has good plasticity and strong ductility and poor thermal conductivity, which is difficult to process. The thin wall features make it difficult to control during the process of processing.
Continue Reading →Chrome ore
Firmetal, 2018-05-03 09:25:00 PM
Chinese chromium ore resources are poor, according to the extent to meet the demand, is a shortage of resources. The total reserve ore was 10.78 million tons, of which 53.6 percent were enriched. There are 56 areas of chromium mineral deposits in Tibet, xinjiang, Inner Mongolia, gansu and other 13 provinces (regions). Tibet is the most important, with reserves of about half of the country. The Chinese chromium deposit is a typical magmatic deposit related to ultrabasic rocks, most of which belong to ophiolite type, and deposit occurs in ophiolite belt. This is the case with the rolosa chromium mine in Tibet, and the xinjiang saltosea chromium mine. From the perspective of metallogenic epoch, China's chrome-forming era is dominated by Mesozoic and Cenozoic era.
Continue Reading →Forging flange
Firmetal, 2018-04-27 09:22:00 PM
Forging flange is a flange in mechanical performance is one of the best products, its raw material is commonly tube billet, and then after cutting to constantly pounding, to eliminate the segregation of steel ingot defects, osteoporosis, etc. The price and mechanical properties are higher than the normal casting flange. Flange is the part that connects the pipe to the pipe and valve and is connected to the pipe end; It is also useful for flanges on the inlet and outlet of the equipment. The connection between the two devices is the part connecting the pipe to the pipe and connecting it to the pipe end. It is an accessory part of the pipe. Forged flange main material is carbon steel, alloy steel, stainless steel. The main standards include national standard, electric standard, American standard, German standard, daily standard and so on. The main anticorrosive treatment is coated and galvanized. The pressure of forging flange is good, it is suitable for high pressure and high temperature working environment.
Continue Reading →Nickel base alloy
Firmetal, 2018-04-26 09:29:00 PM
Nickel-based high-temperature alloys (nickel-based alloys) were developed in the late 1930s. Britain first produced nickel-base alloy Nimonic 75(ni-20cr-0.4 Ti) in 1941; Nimonic 80(ni-20cr-2.5 ti-1.3 Al) was developed in order to increase the creep strength and add aluminum. The United States in the mid-1940s, the Soviet union in the late 1940s, China also developed the nickel base alloy in the mid-1950s. The development of nickel-based alloys consists of two aspects: improvement of alloy composition and innovation of production process. In the early 1950s, the development of vacuum smelting technology created conditions for the refining of nickel-base alloys containing high aluminum and titanium. The initial nickel-based alloys are mostly deformed alloys. Late 50 s, because of the increase in working temperature of the gas turbine for high temperature alloy has a higher strength, but the strength of the alloy is high, it will be difficult to deformation, even not deformation, so adopt revestment precision casting technology, developed a series of casting alloy has good high temperature strength. In the mid - '60s, we developed better directional crystallization and single crystal high-temperature alloy and powder metallurgy high temperature alloy. In order to meet the needs of ships and industrial gas turbines, a series of high chromium nickel base alloys with good corrosion resistance and stable structure have been developed since the 1960s. In the period from the early 1940s to the end of the 1970s, the working temperature of the nickel base alloy increased from 700 to 1100, with an average increase of about 10 per year.
Continue Reading →Research progress and application of antibacterial stainless steel in stomatology
Firmetal, 2018-04-25 09:38:00 PM
Stainless steel materials have been widely used in medical devices and human body implantation because of its good rigidity, processing and forming, corrosion resistance and biocompatibility, and low price. In oral medicine, stainless steel materials can be used to make orthodontic brackets, arch wires and micro-implants, denture stents, clamps, jaw splints, etc. Mouth is a common engraftment complex environment, a variety of microbial stainless steel material in the oral cavity may change the local micro ecological structure, make oral pathogenic bacteria increase or enhanced virulence, resulting in the occurrence of infectious diseases.
Continue Reading →The difference between stainless steel exhaust and titanium alloy exhaust
Firmetal, 2018-04-24 09:32:00 PM
Auto supplies] exhaust is a very important in engine peripheral devices, so the modified converted exhaust has been the mainstream of the above, a modified exhaust can not only make waste gas discharge more smoothly, and the voice can also stimulate your desire to drive. In addition, there are different materials on exhaust, the mainstream material is stainless steel and titanium alloy. However, the friend of the general reload car will choose stainless steel exhaust, because the stainless steel exhaust is the mainstream, and the price of titanium alloy product is too high, the general consumer is more difficult to accept. Not only is the material different, but they also have some differences, the biggest difference between titanium alloy and stainless steel is 3.
Continue Reading →A hundred tons of rhenium was found in the northwest
Firmetal, 2018-04-20 11:20:00 PM
The aviation engine is known as the crown jewel of the aviation industry, because of its technical difficulty and only a few countries have the ability to develop and produce aero engines. These countries are the United Nations, where the engine technology is represented by the United States and the United States, while France and China are lagging behind. And France is coming closer because of the help of other European countries, the engine technology is developing constantly, and the gap with China will be bigger and bigger. China is now the only country in the five countries that can produce engines but still need to import engines.
Continue Reading →New material field
Firmetal, 2018-04-19 09:32:00 PM
Rare earth ndfeb permanent magnet materials, with high remanence, high coercive force and high magnetic energy product features, are widely used in electronics, aerospace industry and drive wind turbines (farms) is especially suitable for sea; The single crystal and polycrystal of garnet ferrite, which is composed of pure rare earth oxides and trioxide, can be used in microwave and electronic industry. Yttrium aluminium garnet and neodymium glass, made of high purity neodymium oxide, can be used as solid laser materials. It can be used to make cathode materials for electron emission. Lanthanum nickel is a newly developed hydrogen storage material in the 1970s. Lanthanum chromate is a high temperature thermoelectric material; At present, the superconducting materials made of barium - based oxide modified by barium yttrium oxide in the world can obtain superconductors in the liquid nitrogen temperature region, making breakthrough in the development of superconducting materials. In addition, rare earth phosphor, intensifying screen phosphor powder, tricolor phosphors, copy lamp, widely used in lighting light source, but due to higher prices lead to high cost, so the application in lighting gradually reduce), projection TV tablet computers and other electronic products; In agriculture, the application of trace amounts of rare earth nitrate to field crops can increase its yield by 5~10%. In the textile industry, rare earth chloride is also widely used in tanning, fur dyeing, wool dyeing and carpet dyeing. Rare earths are used in automotive catalytic converters to turn the main pollutants into non-toxic compounds in the engine exhaust.
Continue Reading →Rhenium alloy field
Firmetal, 2018-04-17 09:45:00 PM
W-re alloy is an alloy of tungsten and rhenium. A type of low rhenium alloy with rhenium under 5%; The other type is high rhenium alloy, with rhenium of 20% ~ 30%. Rhenium is also a rare metal, with less resources and more expensive. If it is not necessary, it should try to use tungsten alloy with no rhenium or less rhenium.
Continue Reading →Which factors affect the sintering temperature of zirconia ceramics
Firmetal, 2018-04-16 14:25:00 PM
Effects are the major factors of zirconia ceramics sintering raw powder particle size, additives, sintering temperature and holding time, selection of salts and calcination conditions and atmosphere and the molding pressure, etc., they all have different degrees of influence on the performance of the material.
The sintering method of zirconia ceramics is the key to the ideal structure and predetermined performance of zirconia ceramics. The suitable sintering method can effectively reduce the sintering temperature. The sintering of Al2O3 ceramics is more than 1800, and the thermal pressure (20MPa) sintering is close to the theoretical density of the products at about 1500, while the static pressure sintering (400MPa) at high temperature has been densified in about 1000.
The implementation process of titanium alloy pipe deep hole processing
Firmetal, 2018-04-13 09:45:00 PM
In the process of deep hole processing of titanium alloy pipe, the traditional deep hole machining method is still used. Use our after modification, the equipment manufacturing, installation special deep hole cutter bar and supporting tools, carries on the deep hole processing, specific processing step three: drilling, reaming, reaming, to carry out the processing.
Continue Reading →Properties and properties of nickel-titanium alloy
Firmetal, 2018-04-12 09:36:00 PM
(a) nickel titanium alloy phase change and performance, as the name implies, nickel titanium alloy by binary alloy of nickel and titanium, due to the change of temperature and mechanical stress and there are two different crystal structure, namely austenitic and martensitic phase. The phase transition sequence of nickel titanium alloy cooling is the parent phase (austenite phase) -R phase - martensite phase. R phase is ling square, austenite is higher temperature (greater than in the same way: namely austenitic temperature), or a place to load (force to remove the shelf, cube, hard. The shape is more stable. And martensite phase is relatively low temperature (less than Mf: at the end of the martensite temperature) or load (by external activation) state, hexagon, is malleable, repeatability, unstable, easily deformation.
Continue Reading →Deep hole machining of titanium alloy pipe
Firmetal, 2018-04-11 13:45:00 PM
In this paper, with deep hole machining titanium alloy tube as the research object, research on titanium alloy pipe deep hole processing technology, in the company, according to the company's existing equipment ability, in the original T2120 transformation on the basis of the deep hole processing equipment, to study design of a dedicated tool rod long; Also developed a series of special deep hole machining tool and related tools, using traditional deep hole (enlarge hinge) processing technology, to realize the deep hole processing technology of titanium alloy, overcome the titanium alloy in the process of test development of the deep hole processing a variety of difficulties, to solve the many key technology, meet the requirement of deep hole machining technology, and completed the titanium alloy tube deep hole processing; Achieved the late development goal. The development and matching requirements are guaranteed, and the obvious effect is obtained.
Continue Reading →The application of rhenium
Firmetal, 2018-04-10 09:58:00 PM
70% of the global rhenium production is used to make high-temperature alloy parts for jet engines. Another major application of rhenium is in platinum-rehenium catalyst, which can be used in the production of lead-free, high-octane gasoline.
Continue Reading →Tungsten titanium
Firmetal, 2018-04-09 09:13:00 PM
In the extraction metallurgy of tungsten and titanium, the importance of metal tungsten and titanium powder production is obvious, and the performance of tungsten titanium powder greatly influences the performance of tungsten products. Tungsten titanium powder is the quality of the superior performance of tungsten titanium and tungsten titanium alloy, tungsten titanium powder industry is facing great challenges, it must meet the market demand for it more and more high, the production of tungsten titanium powder not only have chemical purity requirements, but also has the physical properties and process performance requirements, especially for some special purpose of ultrafine tungsten titanium powder preparation technology remains to be solved.
Continue Reading →Welding properties and technology of zirconium
Firmetal, 2018-04-08 09:46:00 PM
Zr and Ti in first IV class element in the periodic table, is live dial, metal of C, N, O2, H2 has a strong affinity. Zirconium has high chemical activity. When heated to 200, it reacts with oxygen; When you heat up to 300, you start to react with the hydrogen; When you heat up to 400, you start to react with nitrogen. A small amount of dissolved hydrogen, oxygen and nitrogen can increase the hardness of zirconium and reduce the ductility of zirconium. Zirconium will also react with carbon and carbide at high temperatures to increase brittleness. 1.5 USES for the reactor structural materials, neutron radiation resistance, chemical corrosion resistant materials, corrosion resistance of zirconium is better than stainless steel, nickel and nickel alloy, titanium zirconium is second only to the resistance to sulfate corrosion of metal materials, the hydrochloric acid corrosion resistance is superior to other metals, about the titanium.
Continue Reading →Analysis of machining difficulties of high precision titanium alloy parts in turning machining
Firmetal, 2018-04-04 09:33:00 PM
Convex lens axis adopt is titanium alloy material, due to its high strength, hardness, processing to produce surface hardening layer, and material coefficient of thermal conductivity small, small modulus of elasticity, the springback amount of cutting machining surface is very big, the friction of cutter knife after, adhesive, and adhesive wear. In order to ensure the accuracy of contour machining, the coaxial degree of the parts is 0.006mm, which is almost impossible for the existing machine tools. Because the existing machine tool is started, the spindle of its own spindle beats > 0.01mm, it is easy to finish the processing task on such machine tool. The dimension precision requirements of the part shape and hole are very high, respectively 0.005mm and 0.01mm, and the surface roughness value Ra= 0.8mm is required. Under normal circumstances, it is necessary to finish the drawing in grinding machine. Since there is no grinding machine in the plant for precision machining, the task must be completed by a lathe.
Continue Reading →Characteristics and application of tungsten and titanium cobalt
Firmetal, 2018-04-02 09:40:00 PM
A TiC WC % 26 ndash; Co alloy and WC%26mdash; TiC % 26 ndash; Tac % 26 ndash; The production process of Co alloy is characterized by the preparation of the solid solution of various carbides, namely complex carbides. The compound carbide can be used as a mixture of tungsten powder, TiO2, Ta2O5 and carbon black, which is heated to 2000C in a vacuum induction furnace to carbonization, and the TiC%26mdash can be made. TaC or WC % 26 ndash; TiC solid solution. In the final phase of carbonization a vacuum can be used to ensure sufficient carbon content. Another method is to carbonize the mixture of several carbides in a high vacuum to 2000-2500c, which reduces the oxygen and nitrogen content in the mixture. Another production of WC%26mdash; The method of TiC solid solution is called %26ldquo; Solvent method throughout % 26; First, all single carbide is dissolved in liquid nickel. When cooled, solid solution carbide is deposited in crystalline form. Other processes are the same as tungsten and cobalt carbide.
Continue Reading →The development of high - temperature high-energy high - niobium titanium alloy
Firmetal, 2018-03-30 09:40:00 PM
High temperature resistant materials of high niobium alloy are generally used to make turbine blades of jet engines. In the working process, the modern jet engine turbine blades usually bear the high temperature of 1600-1800 degrees Celsius, while also bear the wind speed of about 300 meters per second, and the resulting huge air pressure, the working environment is very bad. Modern turbine blades are usually made of single-crystal materials with directional solidification. They also have to open air cooling channels inside. The process is extremely complex and is regarded as the pearl in the crown of modern industry. The new high temperature and high performance niobium titanium alloy can further improve the high temperature resistance of turbine blades, so as to increase the inlet temperature of the engine and increase the thrust of the engine. High temperature and high performance high titanium niobium alloy density is about half the nickel-based superalloy, use it to make the engine can greatly reduce engine weight, high temperature parts of engine can be improved in esteem. Engine thrust ratio is the ratio of engine thrust and net weight of engine. It is one of the main indicators to evaluate modern jet engines. It has a decisive effect on aircraft performance.
Continue Reading →Alloy material
Firmetal, 2018-03-29 09:21:00 PM
In sputtering coating, can be as simple as the use of electronic or high-energy laser bombardment of target, and the surface components form groups of atoms, or ions was sputtering, and eventually deposited on the substrate surface, experience the film-forming process, ultimately form a thin film.
The sputtering coating can be divided into many kinds, and in general, the difference of evaporation coating is that the sputtering rate will become one of the main parameters. Sputtering coating of laser sputtering coating PLD, composition uniformity, easy to maintain, and the thickness of the atomic scale relatively poor uniformity (because is pulsed sputtering), the growth of the crystal (outer) to control is more general.
Characteristics and application of tungsten and titanium cobalt
Firmetal, 2018-03-28 09:26:00 PM
A TiC WC % 26 ndash; Co alloy and WC%26mdash; TiC % 26 ndash; Tac % 26 ndash; The production process of Co alloy is characterized by the preparation of the solid solution of various carbides, namely complex carbides. The compound carbide can be used as a mixture of tungsten powder, TiO2, Ta2O5 and carbon black, which is heated to 2000C in a vacuum induction furnace to carbonization, and the TiC%26mdash can be made. TaC or WC % 26 ndash; TiC solid solution. In the final phase of carbonization a vacuum can be used to ensure sufficient carbon content. Another method is to carbonize the mixture of several carbides in a high vacuum to 2000-2500c, which reduces the oxygen and nitrogen content in the mixture. Another production of WC%26mdash; The method of TiC solid solution is called %26ldquo; Solvent method throughout % 26; First, all single carbide is dissolved in liquid nickel. When cooled, solid solution carbide is deposited in crystalline form. Other processes are the same as tungsten and cobalt carbide.
Continue Reading →Vanadium alloy
Firmetal, 2018-03-27 09:15:00 PM
The appearance is silver gray metallic luster block. With the increase of vanadium content in alloy, its metallic luster increased, hardness increased and oxygen content increased. When the vanadium content of > is 85%, the product is not easily broken, and the long-term storage surface is easy to produce the oxide film.
Continue Reading →Tuff type niobium tantalum deposit
Firmetal, 2018-03-26 09:16:00 PM
One of the genetic types of niobium tantalum deposit. Such deposits are only found in the Burockman deposit in western Australia.
Deposit in the bottom of the paleoproterozoic volcanic silicide and carbonatization coarse surface mass containing niobium tuff layer containing niobium, tantalum, zirconium tuff, by different proportion of pumice, quartz, debris, and given priority to with potassium feldspar and quartz to take off the vitrified trace of matrix.
Titanium alloy screw
Firmetal, 2018-03-21 09:40:00 PM
Life everywhere need fasteners, now so important, in the fasteners for cleaning the experience of the titanium alloy screws to talk a summarized below: not good cleaning method, mainly for cold heading adhered on the surface of the processing or machining titanium alloy screws of cooling oil residual oil, oil heat treatment quenching fastener surface residual oil after cleaning.
Continue Reading →Study on optical bandgap characteristics of ion beam sputtering tantalum films
Firmetal, 2018-03-20 09:27:00 PM
The spectral transmittance of Ta2O5 (tantalum oxide) films is 0.3 ~ 10um, which is one of the important high refractive index materials of visible light to near infrared band. Ta2O5 thin films with high refractive index and thermal stability, low absorption, amorphous microstructure and chemical corrosion resistance and other advantages, is widely applied in the preparation of a variety of optical components of the film, high anti film, beamsplitters and interference filter.
Continue Reading →The preparation method of TZM alloy
Firmetal, 2018-03-19 09:30:00 PM
Commonly used arc melting - casting and powder metallurgy. Arc melting - casting method is to add a certain amount of Ti, Zr and other alloying elements by using the electric arc to melt the pure molybdenum, and then use the conventional casting method to obtain TZM alloy.
Continue Reading →The influence of CVD temperature on the composition, microstructure and morphology of tantalum coating
Firmetal, 2018-03-16 10:47:00 PM
Using the tacl2-h2-hcl reaction system, cold wall chemical vapor deposition (CVD) was used to deposit tantalum coating on molybdenum substrate. The composition, structure and morphology of tantalum coating at different deposition temperatures were studied by X-ray diffractometer, gold microscope and scanning electron microscope. Results show that, within the scope of 1000 ~ 1300 ℃, no change of tantalum sedimentary phase composition, and has a certain effect on preferential growth; The grain size of tantalum deposits increased with the increase of deposition temperature. The surface particles of tantalum sediments are pyramidal and increase with the increase of sedimentation temperature.
Continue Reading →3D printing tantalum knee implant
Firmetal, 2018-03-15 09:18:00 PM
Titanium and nickel alloys are commonly used to make medical implants because they have a good strength weight ratio, corrosion resistance, and are relatively abundant in the earth's crust.
Tantalum, by contrast, is a rare metal with many properties that make it a valuable medical grade alloy additive. In addition to extremely high corrosion resistance, tantalum also has chemical inertness. It is a viable alternative to platinum and plays a role in certain sterile environments. By adding materials, this relatively uncommon metal can be used in a small amount and optimizes its potential by using a laser aided additive manufacturing system.
China's new light - quality aerospace industry with high niobium titanium alloy will be industrialized
Firmetal, 2018-03-14 09:26:00 PM
Reporter recently from Beijing university of science and technology, state key laboratory of new metal materials, with our country independent intellectual property rights of a new generation of aerospace engine material, high temperature and high performance high titanium niobium alloy material is entering industrialization stage, this technology will make our country aerospace engine materials in the world leading level.
Continue Reading →The low carbon bainite type of high strength and toughness containing niobium microalloy welded structural steel
Firmetal, 2018-03-12 09:30:00 PM
Nb microalloy welded structural steel series has been developed to create a new system of high toughness and low cost with Nb microalloy structural steel with low carbon bainite type. Through union, on the basis of the deep research in the physical metallurgy principle, to develop a new medium temperature shift organization ultrafine new ideas and new technology, created a new generation of high performance low cost in China systems containing Nb micro alloyed steel. The yield strength of new steel under good toughness is 500 ~ 800MPa, with excellent comprehensive performance and weldability, which meet the requirements of low alloy consumption, energy saving and environmental protection.
Continue Reading →Titanium alloy screw
Firmetal, 2018-03-08 10:15:00 PM
Life everywhere need fasteners, now so important, in the fasteners for cleaning the experience of the titanium alloy screws to talk a summarized below: not good cleaning method, mainly for cold heading adhered on the surface of the processing or machining titanium alloy screws of cooling oil residual oil, oil heat treatment quenching fastener surface residual oil after cleaning.
Titanium alloy screw first method alkaline water cleaning method: the simplest alkaline water cleaning is direct heating or indirect heating cleaning tank, cleaning solution is 3% ~ 10% N2CO3 or NaOH aqueous solution. For carburizing and carbonitriding self-drilling titanium alloy screws, tempering before the middle of the multi-purpose cleaning heating to 50 ~ 70 ℃ 5% ~ 10% sodium carbonate solution. Connected mesh belt furnace belongs to this class. Titanium alloy screw cleaning titanium alloy screw is usually sprayed and immersed in dual mode. If hot water is used for washing, it is better to wash with hot water. Finally, the high-pressure air is used for drying. The main drawback of alkaline water cleaning method is that the cleaning effect is not very good, especially the blind hole of the fastener and the spot and residue of the groove. The waste water produced by alkaline water cleaning must be neutralized, and waste oil can be recovered to meet the environmental requirements.
Study on optical bandgap characteristics of ion beam sputtering tantalum films
Firmetal, 2018-03-07 11:32:00 PM
The spectral transmittance of Ta2O5 (tantalum oxide) films is 0.3 ~ 10um, which is one of the important high refractive index materials of visible light to near infrared band. Ta2O5 thin films with high refractive index and thermal stability, low absorption, amorphous microstructure and chemical corrosion resistance and other advantages, is widely applied in the preparation of a variety of optical components of the film, high anti film, beamsplitters and interference filter.
Continue Reading →The properties of tantalum
Firmetal, 2018-03-06 09:30:00 PM
Tantalum is also a kind of rare metal is steel gray luster, melting point 2980 ℃, the density of 16.6 g/cm 3.Tantalum is similar to niobium and is a very stable chemical element. Only fluorine, hydrofluoric acid, acidic solution containing fluoride and sulfur trioxide can react with tantalum. It reacts with a concentrated solution at room temperature and is dissolved in a molten base. The density of tantalum in mild oxidation to the start of the 200 ℃.Tantalum has good low temperature plasticity, tantalum alloy even in - 196 ℃ can keep the ductility. Tantalum also has the ability to absorb hydrogen, nitrogen, etc, and it is in 200-300 ℃ under the suction, high temperature 800-1200 ℃ under the condition of vacuum and precipitation. Under natural conditions, tantalum and niobium are symbiotic, and the minerals containing tantalum and niobium are: tantalum niobium and tantalum niobate.
Continue Reading →Niobium nanowire supercharge or change wearable technology future
Firmetal, 2018-03-05 10:05:00 PM
Carbon nanomaterials are the enemy.
For the past decade, scientists have been trying to find materials that make high-performance supercapacitors. Currently the most popular materials are non-carbon nanotubes and graphene, but scientists are still not satisfied with their conductivity.
In this study, by the Massachusetts institute of technology mechanical engineering professor Ian w. hunter, saeed m. wheat, force and three researchers at the university of British Columbia in Canada team behind the study, after many experiments, finally selected the niobium nanowires. McVakley and his colleagues have demonstrated that high energy density is not unique to carbon nanomaterials, and niobium nanomaterials may be a better choice.
Geological exploration of lithium, beryllium, niobium and tantalum
Firmetal, 2018-01-20 18:25:55 PM
Lithium, beryllium, niobium and tantalum are the main raw materials for the development of rare metals industry. Quite a long time after the founding of new China, the capitalist countries to lithium, beryllium, niobium, tantalum and other rare, rare earth metal products as the strategic materials on China's blockade, embargo, so countries decided to self-reliance, based on the domestic mineral resources, the development of China's rare, rare earth metal industry.
Russia has developed a biocompatible alloy that is identical to that of bone tissue
Firmetal, 2018-01-1 11:37:31 PM
Russian national technology research university "alloy of iron and steel institute in Moscow," said in a news release, the school's researchers with Canada jointly developed an elasticity and shape memory alloy is identical to that of bone tissue, they are made up of zirconium, titanium niobium alloy with biocompatibility, due to its biomechanical properties of the alloy can greatly prolong the service life of medical implants.
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