Advantages and disadvantages of titanium porcelain teeth and price Aerospace titanium castings

In a wide variety of porcelain teeth, the total is divided into these categories: ordinary porcelain teeth, porcelain Aerospace titanium castings teeth titanium, titanium alloy porcelain teeth, all-ceramic porcelain teeth and so on. Which titanium porcelain teeth in between cheap Between the metal and precious porcelain teeth porcelain teeth, outstanding cost performance, so get the favor of consumers. Advantages titanium porcelain teeth that it reduces the metal damage to the human body, similar titanium precision casting to the color of the gum tissue does not produce black ash edge (which is a disadvantage ordinary porcelain teeth). Titanium dental standards must meet the criteria to only 6%, but now the market titanium porcelain teeth containing titanium is very low, so there is not much between the area according to the ordinary porcelain teeth Do not. Overall still occupy the interests of all. Because a common charging 400 yuan porcelain teeth dental clinics in Beijing, and a titanium porcelain teeth price is 900 yuan, so the aerospace castings benefits Makes titanium porcelain teeth facing an embarrassing situation.

Heat treatment of titanium and titanium alloys have Aerospace titanium castings

Heat treatment of titanium alloys are: (1) stress relief annealing: the aim is to eliminate or reduce the residual Aerospace titanium castings stress generated during processing. Prevent chemical erosion and reduce distortion in some corrosive environments. (2) complete annealing: the purpose is to obtain a good toughness, improved workability, and is conducive to further processing and to improve the dimensional stability titanium precision casting of the organization. (3) solution treatment and aging: The purpose is to increase its strength, α β titanium and titanium alloys can not be stable strengthening heat treatment, carried out only in the production of annealing. α + β titanium alloy The metastable β titanium alloy containing a small amount of gold can be prepared by α-phase solid solution treatment aerospace castings and aging the alloy is further strengthened.

Nature of titanium Aerospace titanium castings

Titanium steel appearance is very similar to a density of 4.51 g / cm 3, 60% less than steel, a refractory metal is Aerospace titanium castings the lowest density metal element. Titanium in air at room temperature is stable. When heated to 400 ~ 550 ℃, in the surface layer of a solid oxide film from the protective effect of preventing further oxidation. Titanium absorb oxygen , Nitrogen, hydrogen, strong ability of such gases are extremely harmful to the titanium impurities, even in extremely small amounts (0.01% to 0.005%) can seriously affect its mechanical properties. Mechanical titanium precision casting properties of titanium that is known mechanical properties is associated with purity. High pure titanium has excellent machining performance, elongation, reduction rate is good, but the low-intensity, discomfort cooperation knot Constitutive material. Containing an appropriate amount of an impurity of commercially pure titanium, having high strength and plasticity suitable for producing structural materials. In the titanium compound to the titanium dioxide (TiO2) is most practical. Ti02 on the human body is inert, non-toxic, it has a series of excellent optical properties. Ti02 opacity, gloss And white high refractive index and scattering force, hiding power, good dispersion,aerospace castings  pigments made from white powder, commonly known as titanium dioxide, wide application.

Application of titanium and its alloys Aerospace titanium castings

Because of the dense titanium light weight, high strength than aluminum, can be maintained at a high temperature Aerospace titanium castings than aluminum and high-strength aerospace industry are highly valued. Given the density of 57% of titanium steel, Its (strength / weight ratio or strength / density ratio of them registering intensity) than high strength, corrosion resistance, anti-oxidation, anti-fatigue capabilities are strong, 3/4 titanium alloys used in aerospace structures for the generation of alloys Structural materials table, 1/4 is mainly used as corrosion resistant alloys. Titanium has a low strength and high plasticity, medium and high strength of the strong points for the 200 (low intensity) to 1300 (high strength) MPa, but in general can be seen as a high-strength titanium alloy. They are considered to be more than Strong strength aluminum alloy for high strength titanium precision casting has been completely on some models can replace steel. And the strength of the aluminum alloy at a temperature above 150 ℃ decreased rapidly compared certain titanium Gold at 600 ℃ still maintain good strength. In addition to strength, according to purpose can be divided into heat and corrosion resistance, low temperature and special features (such as TiNi shape memory alloy, TiFe hydrogen storage alloys) and other alloys, the phase composition can be divided by α, α + β and β and near-α, and several types of metastable. Alloy production so far has more than 100 species, only about 10 species widely used in industry. Which make the structure of Ti alloy -6Al-4V titanium alloy accounted for in the whole sale market of 60%, ranking the leading position, followed by Ti-5Al-2.5Sn, its long-term working temperature up to 500 ℃ (780 ~ 980 MPa strength) . However, there are two major factors that make titanium resource-rich elements can not become commonly used metals. The first is cost. According to the U.S. market price per pound (1 pound = 0.45 kg) of titanium ingot 8 ~ $ 12, aluminum ingots at $ 1.00 ~ 1.30 / lb, carbon steel is $ 0.20 ~ 0.40 / lb. But the main factor is the active titanium itself extremely difficult to deal with. Furnace atmosphere must Strict control, welding must be carried out in an inert atmosphere. Titanium high activity, low thermal conductivity, large deformation resistance, poor temperature plasticity, deformation process is not only easy to bond with the mold, especially When there is not the tool and the machining is bonded to the abrasive surface tends to thermal processing, the manufacturing lot of the standard structure of titanium scrap debris generated, so-called residual titanium. General forged titanium ingot processing can be Produce 70% of the residual titanium, sometimes up to 90% of this figure. To reduce the burden caused by the high cost, while the development of the residual titanium processing technology, on the other hand the development of near net shape, super plastic forming, precision casting and powder metallurgy and hot isostatic pressing And other high-tech diffusion bonding. Such as processed by milling, shaping, sintering or hot isostatic pressing method of consolidation near net shape powder metallurgy products as parts, material utilization up to 80 %, Both to reduce the material consumption, but also significantly reduces the amount of machining. Another example is the aerospace castings large-scale thin-wall casting technology in titanium alloy, titanium castings performance close to titanium forgings made The reduced by about 50%. The main areas of consumption titanium and titanium alloy is first aviation industry. 1980s, American aviation industry accounts for 74.8% of the titanium with a titanium total amount, Russia, the United Kingdom, also mainly for Aviation Industry, Japan 90% of titanium used in civilian industry. In recent years, titanium used in the aerospace industry in a non-growing aerospace continued to hold the "flagship" status.

Porcelain teeth are made of pure titanium What are the benefits Aerospace titanium castings

For titanium porcelain teeth how much you have to know it, is a titanium metal implant into the body of modern medicine most widely used metals, accounting for more than 80%; due to Aerospace titanium castings titanium with no human contact sensitization, carcinogenicity , The distortion caused by the phenomenon, with bone tissue, epithelium, connective tissue good combination, so it is best biocompatible metallic materials; same titanium taken in the field of production of dental prosthesis Got great results: titanium porcelain teeth, titanium steel care In addition to titanium dental porcelain affinity with excellent organization, it also has the following advantages: 1, light weight titanium porcelain teeth: a small proportion of titanium, titanium porcelain teeth proportion of its gold 1/4, 1/2 cobalt-chromium alloy, titanium thus making porcelain teeth will be much titanium precision casting lighter weight can To reduce the burden on the remaining tissue in the mouth, titanium porcelain teeth also has a better comfort. 2, low thermal conductivity: crowns made with titanium, titanium porcelain teeth can better isolate hot and cold stimulation, help protect the pulp, titanium porcelain teeth eating hot or cold foods when not There will be a sense of pain. 3, no taste disturbance: Titanium has good stability, not titanium metal porcelain teeth in the mouth feel of the taste, the taste does not cause interference. 4, the transmission X-ray: titanium titanium porcelain teeth on a semi-transmissive X-ray, wearing crowns made of pure titanium, the X-line, you can check whether the decay inside the crown, so early detection , Early treatment, which is aerospace castings the other metal materials for the production of titanium porcelain denture teeth do not have advantages.

Titanium porcelain teeth is how Aerospace titanium castings

Titanium porcelain teeth is how it happened, titanium porcelain teeth for how much you have to know it, Aerospace titanium castings titanium porcelain teeth are made of how it happened, through the following article to let us know next. Please To a regular hospital for treatment. 1 Titanium has excellent chemical stability and biocompatibility, titanium porcelain teeth without any reaction from human tissue. Titanium porcelain teeth do not cause inflammation of the gums, black neck edge, mouth titanium precision casting  Cavity metal odor and other issues. 2 titanium non-magnetic, titanium porcelain dental X-rays can penetrate, does not affect the MRI, X-ray film, CT, etc., titanium porcelain teeth without prejudice to future medical examination. 3 lightweight titanium porcelain teeth less than 1/6 Other ceramic alloy. 4 can be said that there are many benefits of titanium dental porcelain, titanium is the metal of the 21st century medical, 5 Titanium also has some drawbacks, titanium porcelain teeth that are difficult to process, metallic elastic, easy to collapse when not enough porcelain shoulder, titanium porcelain teeth on the technical requirements for doctors is high. Of course, aerospace castings the cost of titanium porcelain teeth are also high.

、Titanium alloy valve can withstand high temperatures range

   High temperature  Sunrui titanium sheet metal  rods mainly Tilloo, IMI834, Ti6242, BT20, mainly used for aero-engine structures. To meet the special requirements of high-temperature and high-temperature creep strength, which Till00 and IMI834 the temperature up to 600 ℃.
     In order to improve the use of  titanium check valve  rod temperature, reducing the weight of the material, titanium-aluminum-based metal between sets of objects has been attracting much attention, due to the difficulty of forging, casting more suitable for forming a titanium aluminum, has a lot of engine parts, or are ready to adopt  titanium alloy sheets  material casting, the world's major engine manufacturers GE, PwA, Rolls-Roycc have asked for Ti-A1 metal compounds in-depth research, such as the United States Howmet TiAl low pressure turbine blades are studying, and used to replace the cast Inco713 leaves, using a temperature of 650-700 ℃; GE company is the Ti48A12Cr2Nb fifth stage low pressure turbine blades for the CF6-80C engine temperature up 760Y, successfully tested / 1500 analog K line cycle.