Chemical properties of titanium

Titanium in high temperature, can react with many elements and compounds. A variety of elements, according to their different reactions occur with titanium can be divided into four categories:
The first category: halogen and oxygen group elements and Titanium round bar generating covalent bond and ionic bond compounds;
Class second: transition elements, hydrogen, beryllium, boron family, carbon group and pnictogens and Ti intermetallic compound and limited solid solution;
Third class: zirconium, hafnium, vanadium family, family, scandium and titanium produce infinite solid solution;
Fourth class: inert gas, alkali metal, alkaline earth metal, rare earth elements (except for SC, actinium, thorium and other external) no reaction or reaction does not occur basically and powdered metal suppliers.

Titanium performance

A new type of titanium alloy can be used for a long time at a temperature of 600 DEG C or higher temperature. Titanium alloy TA7 (Ti-5Al-2.5Sn), TC4 (Ti-6Al-4V) cryogenic titanium alloy and Ti-2.5Zr-1.5Mo as the representative, its strength increased with the decrease of temperature, but the plastic has hardly changed. Keep good ductility and toughness in the -196-253 degrees Celsius temperature, avoiding metal cold brittleness, is the ideal material for cryogenic vessel, tank and other equipment. Titanium sheet metal is affected by mechanical vibration, electric vibration, compared with steel and copper metal, its vibration attenuation for the longest time. The use of the properties of titanium can be used as a tuning fork, medical ultrasonic pulverizer vibrating element and high sound loudspeaker vibration film etc..
Titanium is non-magnetic metal, in a large magnetic field will not be magnetized, non-toxic and human tissue and blood compatibility good, so is the medical community by.
The performance of titanium tubing for sale shows its ratio of yield strength (tensile strength / yield strength) high, said metal titanium material in forming poor plastic deformation. The ratio of titanium yield limit and elastic modulus, the springback of titanium forming large. The coefficient of thermal conductivity of metallic titanium although than carbon steel and copper is low, but because of the corrosion resistance of Powder coating titanium excellent, so thin wall thickness can be greatly reduced, and the surface and the steam heat transfer mode for dropwise condensation, reducing the heat group, titanium surface scaling can also reduce the thermal resistance, so that the heat transfer performance of titanium significantly to improve the. The elastic modulus of titanium at room temperature for 106.4GPa, 57% for steel. Titanium is a chemically very active metals, react with many elements and compounds at high temperature. Titanium gettering mainly refers to the high temperature and carbon, hydrogen, nitrogen, oxygen reaction.

The ultra high pure titanium

In 2014 September, the first furnace "China electronic grade hypoxia ultra high pure titanium" in Zhejiang city of Yuyao province successfully developed and put into production, the one to break the foreign monopoly. Hypoxia ultra high pure titanium bar stock is mainly used for sputtering target materials, aerospace, marine petroleum in the semiconductor core industrial areas, strategic significance. It is particularly worth mentioning is that the ultra high pure titanium is an important guarantee of raw materials of Chinese own large aircraft project. Prior to this, the ultra high pure titanium prices of imported from abroad for 1200000 yuan / ton, by purifying technology limited, three companies, only the United States and Japan all over the world to the production of ultra high purity titanium. As a high-end strategic metals, American and Japanese government restrictions on Chinese exports. China in the field of ultra high pure titanium is often to see Japan's "face". Means that China has own production capacity of hypoxia of ultra high purity Gr5 titanium forged ring, realizing independent self-sufficient this strategic metal, completely free themselves from dependence on foreign. To break the monopoly, direct benefit is the field of aerospace.

The historical development of titanium

From the discovery of titanium element to prepare pure, lasted for more than a hundred years. While the titanium has actually been spent, recognize the true face of the original, is in twentieth Century, after 40 years of things.
The surface of the earth ten kilometers thick stratum, titanium containing up to 6/1000, 61 times more than copper, the content in the crust (crust in the tenth row elements ranking: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium and hydrogen, Titanium Flange Screw), literally from the ground up a handful of dirt, which contains a few thousandths of titanium, the world's reserves of more than ten million tons of titanium ore is not rare.
There are a million tons of sand on earth, titanium and zirconium these two than sandstone heavy mineral, is mixed in the sand, after the sea millions of years around the clock to washing, compare heavy ilmenite and zircon placer rushed together, in the long coastline, the formation of a piece of titanium ore layer and zirconium ore. The seam is a black sand, there are usually a few centimeters to tens of CM thick. Titanium tube fittings is not magnetic, titanium built nuclear submarines do not have to worry about magnetic mine attack.

The use of titanium

  Titanium and other elements of iron, aluminum, vanadium or Mo alloyed high strength, made of light alloy, has been widely applied in various aspects, including the space (jet engines, missiles and spacecraft), military, industrial processes (chemical and petroleum products, desalination of sea water and paper), automobile, agricultural products food, medicine (prosthetics, Department of orthopedics, transplantation and dental instruments and fillers), sporting goods, jewelry and mobile phone etc.. [4].
  Two properties of Titanium round bar is most useful, corrosion resistance, strength and weight of the highest metal than [7]. In non alloy under the condition, the strength of titanium with some steel comparable, but lighter 45%[8]. There are two allotropes [9] and five kinds of natural isotopes, from Ti to Ti, the highest abundance was Ti (73.8%) [3] [10]. The chemical properties and physical properties of titanium and zirconium are similar, this is because the number of valence electrons of the two the same, and belong to the same family of elements in the periodic table.
  In the earth's crust, Astm F67 Titanium Foil reserves second only to iron, aluminum, magnesium, ranking the fourth. Since titanium has high melting point, the proportion of small, high strength, good toughness, fatigue resistance, corrosion resistance, low thermal conductivity, high and low temperature tolerance performance is good, in cold and hot conditions, stress is small, its commercial value start was recognized in twentieth Century fifty years, should be used in high-tech field of aviation, space etc.. With the continuous chemical, petroleum, electric power, desalination, construction, daily necessities industry promotion, titanium metal are increasingly attention, known as the "modern metal" and "strategic metals", is an important strategic material and raise the level of national defense equipment indispensable.

The use of titanium

    Titanium is a chemical element, chemical symbol Ti, atomic number 22, is a transition metal silver, which features light weight, high strength, with metal luster, also have good corrosion resistance (including sea water, aqua regia and chlorine). Because of its stable chemical property, good resistance to high temperature, low temperature resistance, resistance to acid, alkali resistance, and high strength, low density, is known as "space metal" [2]. Titanium in 1791 by Gregor (William Gregor) in Cornwall and found that, by Klaproth (Martin Heinrich Klaproth) is named for its use in Greek mythology titan.
    Forged Titanium Ingot is considered to be a rare metal, which is due to the existence of a decentralized in nature and difficult to extract. But its relative abundance in all the elements in the tenth. [3] Titanium filler wire ore mainly ilmenite and rutile, widely distributed in the crust and lithosphere. Titanium also exist in almost all organisms, rock, water and soil [4]. Remove the titanium need to use Kroll method [5] or the Hunter method from the main ore extraction. The most common compounds of titanium, titanium dioxide can be used in the manufacture of white pigment [6]. Other compounds also includes four Titanium tube fittings chloride (TiCl4) (as catalyst and used in the manufacture of smoke or air text) and titanium trichloride (TiCl3) (for the catalytic production of polypropylene).