2015年4月29日星期三

Titanium bars Performance and titanium alloys are widely used in industry

titanium grade 2 sheet because of its high strength, heat resistance, corrosion resistance, widely applied in industry . Especially in aviation, aerospace , shipbuilding and other industries , mostly used in the manufacture of titanium alloy key components , its performance is good or bad usually determines the level of the product . Therefore , national research institutions to put a lot of manpower, material and financial resources to carry out its melting alloys and equipment , forming process research and development , writing papers , and many thousands of monographs . However, the study of titanium melting process with little , limited studies have limited studied. Titanium because of its high melting point, titanium grade 4 chemical activity , thermal properties between the elements of the big difference , so the smelting process of melt composition and temperature control is very difficult, and the melt composition and temperature directly determine the quality of titanium . Therefore , to identify qualitative and quantitative variation of melt composition, temperature and process parameters , alloy itself between thermal parameters have important practical significance for guiding titanium melting , smelting practice for other alloys also have important reference value

2015年3月12日星期四

Grade titanium

Grade titanium


Titanium alloy is Ti-based alloys by adding other elements.Titanium grade 1has a high strength and density and small, good mechanical properties, good toughness and corrosion resistance. In addition, poor process performance titanium gr 2 ,  machining difficulties in thermal processing, and very easy to absorb carbon hydrogen nitrogen and other impurities. There are poor abrasion resistance, complex production process. Titanium industrial production was started in 1948.

2015年1月30日星期五

Several major properties of titanium

Several major properties of titanium

Titanium popular range is too wide-ranging, and in the shipbuilding industry, chemical industry, manufacturing machinery parts, telecommunications equipment, carbide, etc. have a wide range of applications, titanium is also widely used in the aerospace industry, with "Space Metal" of the said.
Titanium is a very reactive metal, which is very low equilibrium potential, thermodynamic corrosion tendency in the medium is large, but in fact many of the titanium in the medium is very stable, and this is because titanium has a great affinity for oxygen, in air or oxygen-containing medium, the titanium surface layer of dense, strong adhesion, large inert oxide film to protect the titanium substrate corrosion.titanium material heat resistance, long-term use at 600 ° C or higher temperatures, but also to maintain good ductility and toughness at low temperature -196-253 ° C, to avoid the metal cold brittleness, impedance can be strong , non-magnetic, good non-toxic, heat resistance, low elastic modulus, suction performance.
Titanium in medical treatment, can be used for artificial bones and various appliances, with this titanium material shaped pieces made of titanium and titanium have a stick, it is widely used.
Do you know what the titanium isoforms is not it? The answer should not know it, and that it titanium, titanium should know what is right.
Because titanium has excellent corrosion resistance, extend equipment life, reduce maintenance frequency equipment and piping, a fundamental solution to run, run, drip, leak and other issues, save energy, increase the effective production time. The use of titanium equipment and pipelines, can reduce the cost of equipment and piping materials, lower production costs. The use of titanium, although one-time investment is large, but the overall look is economical in the long run, the actual investment is only stainless steel titanium for sale about twice titanium products due to long service life, thus reducing the updated equipment and piping costs and frequent maintenance costs, in fact, save money and reduce costs.
Titanium solve corrosion problems due to equipment and piping to avoid corrosion of equipment and piping due to contamination of the brine and caustic soda.

2015年1月27日星期二

Titanium heart stent

Titanium heart stent

What is titanium? What is titanium heart stents? Titanium can be used as cardiac stents it? Of course, that can be used titanium alloy heart stent, made of titanium with titanium material shaped pieces to be used in medicine, incomplete treatment of the human body to get the full. Titanium heart stents after repeated research and practice, is currently the most widely used titanium alloy stent-based alloy tube, the tube body is based on the different needs and "crafted" the global done until now titanium cardiac stenting has more than 10 million cases of.
titanium supply stent has a higher compression ratio, can be placed into a smaller delivery vessel, and after the opening deformation of the stent as a whole uniform, the force is relatively uniform, the stress can widely distributed, easily cause stress concentration, so that the stent fatigue performance enhancements, and have greater radial strength. Uniform stent cell structure makes the stent may stress when the stress distribution, and effective way to avoid stress concentration, which significantly reduced the maximum stress, the stent flexibility is much better. Good mechanical performance of the new stand, and the stress distribution is more uniform, achieve the purpose of optimizing the design.

2015年1月23日星期五

Learn about the titanium rod knowledge

Learn about the titanium alloys rod knowledge


For titanium nickel rod is now not at all strange, understand its purpose, using the properties, know it in the medical industry, aerospace great achievement, a series of all the benefits it has brought us and give us help.
It has excellent strength with light, hardness, density, low mass, high temperature, low temperature resistance, good machining performance, excellent corrosion resistance, non-magnetic, non-toxic, good heat transfer performance, but also has memory, superconducting sex, hydrogen storage performance is outstanding. Titanium rod products are also widely used for: marine, aerospace, vacuum salt, automotive, medical and sports, textile and paper industry, power industry, metallurgical industry, chlor-alkali industry, fertilizer industry, the desalination industry, as well as the production life of the watch case computer case and it also has a spare parts production involves.
Titanium was found up to now is a hundred years of history, is that people really use there a long time, the use of titanium rod was also a very long time, it also brings in all industries to give a great help .

2015年1月20日星期二

Overview Titanium

Overview Titanium

Titanium is a 1950s era unfolded layout of an important metal, titanium because of its high strength, good corrosion resistance, heat resistance, and high-level features are widely used in various fields. Many countries recognize the importance of titanium alloy materials, have their research and development, and has been the practice to use.
Titanium is a useful first 1954 US successfully developed Ti-6Al-4V alloy, because of its heat resistance, strength, ductility, resistance, formability, weldability, corrosion resistance and biocompatibility are better, and become the main industry in titanium alloy, 75% to 85% of this amount accounted for all titanium alloys for use. Many others can be seen as a modification of titanium alloy Ti-6Al-4V alloy.
20th century, 50 to 60 times, first and foremost is to carry out high-temperature titanium aircraft engine and airframe layout of titanium, 70 age group declared an alloy corrosion, since age 80, corrosion resistant and high-strength titanium alloy has been further carried out. Temperature resistant titanium alloys using 50 times from 400 ℃ to 90 times the progress of 600 ~ 650 ℃. A2 (Ti3Al) and r (TiAl) based alloys exhibit, use titanium engine parts are driven by the engine cold side (fan and compressor) to the hot end of the engine (turbo) direction. Titanium layout to carry out high-strength, high plastic, high strength and high toughness, high modulus and high damage tolerance direction.
In addition, since the 20th century, 70 times, but also presents a Ti-Ni, Ti-Ni-Fe, Ti-Ni-Nb shape memory alloys, etc., and get increasingly widely used in engineering.
At present, the world has developed hundreds of titanium, the most famous of 20 to 30 kinds of alloys, such as Ti-6Al-4V, Ti-5Al-2.5Sn, Ti-2Al-2.5Zr, Ti-32Mo, Ti-Mo-Ni, Ti-Pd, SP-700, Ti-6242, Ti-10-5-3, Ti-1023, BT9, BT20, IMI829, IMI834 etc. [2,4].
Titanium is a titanium for sale alloy for the foundation to participate in other elements. There are two isomeric titanium crystal: The following 882 ℃ for hcp titanium layout α, β titanium above 882 ℃ for the body-centered cubic.
Alloying elements on the basis of their impact on the phase transition temperature can be divided into three categories:
① stable α-phase, progressive phase transition temperature of the elements is α secure element, aluminum, carbon, oxygen and nitrogen. During the primary alloying element aluminum is titanium, its alloys at room temperature the progress of high-temperature strength paper, reduce the proportion of added elastic modulus significant effect.
② stable β-phase, reducing the element of the phase transition temperature of β stable element, and can be divided isomorphic and eutectoid two.


The former has molybdenum, niobium, vanadium and the like; the latter are chromium, manganese, copper, iron, silicon and the like.
③ small element of the phase transition temperature is neutral elements, zirconium and tin.
Oxygen, nitrogen, carbon and hydrogen impurities is the primary titanium. Oxygen and nitrogen in the α phase has a greater solubility of titanium has significantly enhanced the role, but the plastic lower. General rules of oxygen and nitrogen content of titanium of 0.15 to 0.2%, respectively, and 0.04 to 0.05% or less. The solubility of hydrogen in α phase is very small, titanium dissolved in excess hydride hydrogen occurs, the alloy brittle. General titanium hydrogen content control in 0.015%. Hydrogen was dissolved in titanium is reversible, can be removed by vacuum annealing.

2015年1月17日星期六

Application of titanium in civilian areas

Application of titanium in civilian areas

The use of titanium analysis
Titanium is the youngest of the new project of metal, the successful development of titanium from the sixties, through forty years of development
Titanium has been known only to a third metal iron, aluminum, and the reason is not only that it has a high specific strength, but also because it has
Exceptional corrosion resistance and good mechanical properties and comprehensive process performance;
The inception of the company in the production of precision parts titanium and titanium alloy materials and titanium responsibility, specializing in titanium and
Manufacturing process development of titanium standard parts, non-standard parts, special-shaped pieces; the main production of titanium alloy forgings, forged bars, a variety of titanium alloy
Gold hex, hex bolts, nuts, non-standard auto parts, flanges, pipe fittings, elbow etc;
Thanks to titanium feedstock titanium sponge production process improvements and advances in alloy melting and forging process, making
Titanium costs dropped significantly from the original military and aerospace industry gradually shifted general industrial applications, the most important
Is as corrosion resistant structural materials in the petrochemical industry, the soda industry, electrolytic plating industry, pharmaceutical industry, and environmental
Protection, medical devices are widely used;
In the chemical and related industries and corrosive media project, a large number of compromised machines and equipment corrosion; it is estimated that
There are several million tons per year worldwide due to corrosion of steel scrap, accounting for about one-tenth of the total production loss due to corrosion and can not be recovered, rot
Eclipse not only scrapped a lot of metal materials, but also causes pollution and hazards; due to corrosion, can cause an explosion,
Combustion, resulting in accidents caused by the disaster;
Modern society is generally based on corrosion-resistant stainless steel as the best material in manufacturing various types of production materials, with titanium technology
Mature and progress, the price has dropped significantly, showing a good price, titanium and stainless steel corrosion resistance comparison:
(1) stainless steel prone to corrosion and stress corrosion cracking in the oxide,
(2) has a tendency to intergranular corrosion in many media, weld and heat affected zone is particularly sensitive to intergranular corrosion,
Localized corrosion resistance of titanium, titanium and experiments show that stainless steel, aluminum, copper alloy, nickel alloy, compared with a superior
Resistance to localized corrosion:
(1) Good resistance to crevice corrosion;
(2) resistance to seawater and oxide pitting;
(3) corrosion resistance of welded joints, prone to intergranular corrosion of stainless steel;
(4) high corrosion fatigue strength, corrosion fatigue phenomenon is relatively rare titanium, titanium corrosion fatigue limit in seawater is equal
Or slightly higher than the fatigue limit in air;
(5) resistance to stress corrosion cracking of titanium in chemical plant, in general, do not stress corrosion cracking occurred, and stainless steel to stress
More sensitive to corrosion cracking;
(6) due to abrasion medical grade titanium alloy oxide surface protective film layer of dense, oxide film in a certain environment, as well as the rapid birth
Long and repair capacity, and thus the titanium is in the passive state of the environment, such as seawater, neutral hydrochloric acid solution, gasification has good acid
Anti-abrasion capability;
Corrosion resistance of titanium gr 2 can be further enhanced to improve, a new titanium now constantly synthesized successfully in some special
Special environment, according to the requirements of the various properties of synthetic titanium; such as: titanium-palladium alloy, titanium, molybdenum-nickel alloy ......
Titanium in seawater, ordinary water, wet chlorine chlorine, chlorine dioxide, nitric acid, chromic acid, acetic acid, ferric chloride, copper chloride, melting
Melting sulfur, chlorinated hydrocarbons, hypochlorous acid, hypochlorite, chlorine bleach, lactic acid, phthalic acid, urea, a variety of organic compounds, below
3% and less than 4% H2SO4 HCL has excellent corrosion resistance;
Hydrofluoric acid, fluosilicic acid, a fluorine-containing compound solution, the concentration of more than 3% HCL, more than 4% H2SO4, not inflated boiling formic acid,
Boiling concentrated aluminum chloride, phosphoric acid, oxalic acid, dry chlorine, fuming nitric acid corrosion reducing these poor, so the need to synthesize titanium
Alloy to improve corrosion resistance, such as titanium palladium alloys, nickel-titanium-molybdenum alloys have a very stable performance in particular aspects of corrosion resistance.