2015年1月30日星期五

Brief history of titanium

The first discovery of titanium ore is a black sand called titanium iron sand, by Reverend William Gregor in Cornwall in 1791 found that the. He analyzed it and deduce the is composed of iron and an unknown metal oxides, and report to the Royal Geological Society of Cornwall.
In 1795, German scientists in Berlin Martin Heinrich Klaproth of Sch, called a RL red ore from Hungary. This is Jin Hongshi (TiO2) of a kind of form, but Klaproth realized it a previously unknown element oxides, he named titanium bar stock (Ti). When he was informed of the discovery of Gregor, he studied iserite and confirmed it also contains titanium tubing for sale. Until 1910, working in USA Ge M. A. Hunter to create a pure titanium metal, achieved by heating four titanium chloride and sodium metal.

2015年1月26日星期一

The use of titanium (three)

The measure of a country's titanium industry scale has two important indicators: titanium sponge titanium production and yield, which reflects the Surgical Titanium Wire sponge production of raw materials production capacity, titanium production reflects the deep processing capacity. Sensor Titanium housing industry has formed China, America, CIS, Japan and Europe five production and consumption of the main. China titanium industry started in 1954, after the test, the industrialized production of fixed-point layout, application and technology progress gradually developed. Especially since twenty-first Century, the national demand, driven by the reform and open policy, the titanium industry in Chinese is make a spurt of progress. 2011 is the first year of China's "Twelfth Five Year Plan", in this year, China's titanium sponge and titanium processing material production continues to growth inertia. According to the China nonferrous metal industry association of titanium and zirconium hafnium branch of statistics, 14 domestic titanium sponge production enterprise total output in 2011 was 64952t, increased by 12.4% compared to the same period. According to the statistics of 30 enterprises, in 2011 China co production of titanium processing material 50962t, grow 33% compared to the same period.

2015年1月22日星期四

The use of titanium (two)

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 bar stock 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, titanium reserves second only to iron, aluminum, magnesium, ranking the fourth. Since Grade 9 Titanium components 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.

2015年1月18日星期日

The use of titanium (one)

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.
precision titanium products 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 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 round bar dioxide can be used in the manufacture of white pigment [6]. Other compounds also includes four titanium chloride (TiCl4) (as catalyst and used in the manufacture of smoke or air text) and titanium trichloride (TiCl3) (for the catalytic production of polypropylene).

2015年1月14日星期三

The historical development of titanium (two)

In 1947, people began in the factory smelting titanium. That year, output was 2 tons. In 1955, the surge in production to 20000 tons. In 1972, the annual output reached 200000 tons. The yield strength of titanium are higher than steel, but it weighs almost only half the same volume of steel, Titanium Sheet Metal Price although slightly heavier than aluminum point, yield strength of it is 2 times larger than the aluminum. Titanium ratio strength higher than aluminum and steel, modulus and aluminum, steel is very close to the. In the universe of rocket and missile, a large number of titanium instead of iron. According to statistics, the world every year for the universe navigate titanium bar stock, has reached more than one thousand tons. Very fine titanium powder, or rocket good fuel, so ti is known as cosmic space metal, metal.
Titanium at elevated temperature easily and air reaction, but the high melting point of 1668 DEG C. At room temperature, titanium is not afraid of aqua regia and dilute nitric acid corrosion resistance, but not more than 5% acid corrosion and 7% hydrochloric acid corrosion. Titanium is not afraid of ambient seawater, someone had put a piece of titanium sank to the bottom of the sea, five years later to take up a see, above the sticky many small animal and marine plants, but not a bit rusty, still shining. People began to use titanium to titanium submarines -- manufacture of submarine. Since titanium is very strong, can bear high pressure, the submarine can sail at a depth of 4500 meters deep in the sea.

2015年1月11日星期日

Preparation of titanium machining process in the rough

       Titanium is a very active metal elements, and can effect all the elements, titanium during heating, can interact and oxygen, the oxide film formed on the surface. At different heating temperatures, the structure and properties of the oxide film is different. Thermoforming titanium complex, each batch is different mechanical properties, in order to ensure the quality of materials, manufacturers are available certificate and test report.
       1. Preparation of titanium raw material supply state requirements
       A titanium plate deformation - in metallurgy factory rolled into sheets of poor performance repeatability. Domestic and foreign production of titanium same composition, mechanical properties of the difference is not small; domestic different sheet metal factory production, performance is not the same, even if a plant product, different furnace number of its mechanical properties are not the same. Therefore, in order to ensure the quality of the parts, you should first make sure that the quality of raw materials. Treasury requisitioned from titanium and titanium sheet, should be equipped with the manufacturer factory certification and factory re-inspection certificate. In order to facilitate future verification, certification should be saved. When necessary, the basic situation of each plant can manufacture sheet metal parts to make records to future reference.
       All the plates were annealed condition require supply. To ensure the quality of the parts should be removed oxide and other pollutants plate surface. Titanium surface may not have cracks, peeling, crimping, inclusions and other defects, as well as through the traces of pickling. Sheet should be straight and wrapping paper out of the library. In the material after forming, assembly, transport and storage process, should be taken to prevent surface scratches.
       2, titanium rough cutting
       Wool preparation methods used in a variety of sheet metal parts, there are many similarities. Since the titanium plate thickness generally used in less than 2 mm, and a thickness of 1.5 mm or more parts so few titanium plate cutting can utilize existing equipment at room temperature.
       When cutting, should pay attention to try to make the edges smooth wool, particularly to prevent the edges of cracks, bite wounds and cut marks and other defects, in the cut planks should pay attention.
       Before forming wool deburring and removal should be sharp edges. Because of the sensitivity of titanium crack growth is strong, this work is extremely important, in order to eliminate the stress concentration to prevent cracking and scratches wool die during forming. Available cutting and filing, or sandpaper belt grinding deburring or polish.
       It should be noted that regardless of which method is used under the material, when crossed, only use non-polluting ink and pen, is not allowed to play in the wool stamp, offset or specially equipped only play tag.
       3, before forming degreasing and cleaning
       Before any thermoforming, should remove surface grease, or other contaminants, in order to avoid contamination of the titanium produced when heated. In addition, the surface of the oxide wool reduces plastic material, should be removed prior to forming. Therefore, in order to reduce the impact of various types of atmosphere environment, generally using a vacuum hardening furnace and vacuum annealing furnace heating, vacuum furnace inert gas can protect titanium and titanium alloy materials in the heating process from contamination.

2015年1月5日星期一

What is a titanium

Titanium is a chemical element, chemical symbol Ti, atomic number 22, in the chemical elements in the periodic table is located in the fourth period, the group IVB. Is a transition metal silver, which features light weight, high strength, with metal luster, resistance to wet chlorine corrosion.
Titanium Flange Screw is considered to be a rare metal, which is due to the existence of a decentralized in nature and difficult to extract. But its relatively abundant, ranking the tenth among all the elements. powdered metal suppliers ores are mainly ilmenite and rutile, widely distributed in the crust and lithosphere. Titanium is also present in almost all biological, rocks, water and soil. Remove the titanium need to use Kroll method or the Hunter method from the main ore extraction. The most common is a compound of titanium dioxide, can be used in the manufacture of white pigment. Other compounds also includes four titanium chloride (TiCl4) (as catalyst and used in the manufacture of smoke or air text) and titanium trichloride (TiCl3) (for the catalytic production of polypropylene).