From discovery to obtain pure titanium products, which lasted a hundred years . The use of titanium really get familiar with its original true , it is the 1940s after the thing .
Geography ten kilometers thick surface strata, containing up to six thousandths of titanium , copper and more than 61 times . Just a handful of dirt from the ground , which contains a few thousandths of titanium , the world's reserves of more than ten million tons of titanium is not rare .
Result of tons of sand and gravel , both titanium and zirconium minerals heavier than the sand on the beach , they mixed in sand , the sea millions of years after panning around the clock , the heavier ilmenite and zircon sands washed together in the long coast , forming a layer of titanium and zirconium in a seam . This seam is a black sand , there are usually a few centimeters to tens of centimeters thick.
Titanium is not magnetic , nuclear submarines built with titanium magnetic mines do not have to worry about attacks .
In 1947, people began smelting of titanium in the factory . That year, the yield is only 2 tons . 1955 annual production surged to 20,000 tons . In 1972 , the annual output reached 20 million tons. Titanium and steel hardness similar and almost half of its volume with the steel weight of titanium , although slightly heavier than aluminum, its hardness than Al 2 times . Now, rockets and missiles in the universe , on a range of titanium instead of steel . According to statistics, currently the world's titanium year for astronautics , and has reached more than one thousand tons of titanium powder fine , good or rocket fuel , so titanium metal known universe , space metal .
Good heat resistance of titanium , high melting point 1725 ℃. At room temperature, titanium can be safe to lay a variety of acid and alkali solution . Even the most ferocious acid - aqua regia , nor corrode it . Titanium is not afraid of the sea , was once a titanium sink to the bottom , the next five years to take up a look at the many small animals and stick undersea plants, but he is not rusty , still shiny .
Now, people began to use titanium to make submarines - titanium submarines. Because titanium is very strong, can withstand high pressure, this submarine can sail at a depth of 4,500 meters in the deep sea .
Corrosion resistance of titanium , so the chemical industry often use to it . In the past, chemical reactor components are installed with hot nitric acid with the stainless steel . Stainless steel is also afraid that a strong corrosive - hot nitric acid , every six months , all such components should be replaced . Now, the components manufactured with titanium , although the cost of more expensive than stainless steel member , it can be used continuously years , but it is advantageous much calculation .
The biggest drawback of titanium is difficult to extract . Mainly because of the titanium compound at a high temperature capability, with oxygen , carbon, nitrogen compounds , and many other elements . Therefore , regardless of the smelting or foundry , people are careful to prevent these elements " invasion " of titanium . In the smelting of titanium , when air and water, of course, is strictly prohibited close , and even common metallurgical alumina crucible also banned, because titanium oxide would wrest from the alumina inside . Now , people use magnesium and titanium tetrachloride in an inert gas - phase separation of helium or argon , to extract titanium.
People use titanium compounds at high temperatures characteristic strong ability in steelmaking , when nitrogen is easily dissolved in the steel water, when the ingot cooling when the ingot is formed bubbles affect the quality of steel. So Riga into the molten steel workers to the metal titanium, making it the nitrification into a slag - titanium nitride , floating on the molten steel surface , so that the ingot is more pure.
When the supersonic aircraft , its wing temperature can reach 500 ℃. As with a relatively heat-resistant aluminum alloy wing , one to twenty-three Baidu will be too much , and there must be a light , and tough , and high temperature materials instead of aluminum acetate titanium just to meet these requirements. Titanium can withstand the test of minus 140 degrees , in this cold , still has good toughness of titanium rather than brittle.
The use of titanium and zirconium strong absorption of air , the air can be removed , resulting in a vacuum . For example , the use of a vacuum pump made of titanium , can only air pumped hundreds of thousands of square millionth .
Titanium oxide - titanium dioxide, a white powder , is the best white pigment , commonly known as titanium dioxide . Previously, people mining titanium , the main purpose is to obtain titanium dioxide. Strong adhesion of titanium dioxide , a chemical change is not easy , is always white . Titanium extraordinary valuable is non-toxic . Its high melting point, is used to make fire-resistant glass , glaze , enamel , clay, utensils and other high-temperature experiments .
Titanium dioxide is the most white stuff , 1 g of titanium dioxide can put more than 450 cm2 in area painted white . It is commonly used white pigment than one - lithopone whiter five times , thus modulating the best white paint pigment . Titanium dioxide pigment used in the world , more than a year to tens of tons. Titanium dioxide can be added in a paper ,Xinnuo titanium standard part the paper white and opaque , the effect is 10 times larger than any other substance , therefore , we should banknote paper and art paper plus titanium dioxide. In addition , in order to lighten the color of the plastic to make rayon soft gloss, and sometimes also added titanium dioxide. In the rubber industry, titanium dioxide is also used as a filler of white rubber.
Titanium tetrachloride is an interesting liquid , which has a pungent smell shares , will be great in the wet air white smoke - it is hydrolyzed into white titanium dioxide hydrogel . In the military , people took advantage of titanium tetrachloride, which shares a strange temper, as artificial aerosols. Extraordinary in the ocean, water vapor and more, a release of titanium tetrachloride, a white smoke as the Great Wall , blocking the enemy's line of sight. In agriculture, the use of titanium tetrafluoride people to frost .
Barium titanate crystals have such characteristics : when it changes shape under pressure , generates electricity, a power will change the shape . Thus , the barium titanate in an ultrasonic people , and it will produce a current pressure , the size of the current generated by it can detect the strength of the ultrasonic wave . Conversely , a high frequency current through it , it can generate an ultrasonic wave. Now , almost all of the ultrasonic instrument, to be used in barium titanate .Xinnuo titanium stockists In addition, there are many uses of barium titanate . For example: railway workers put it on the tracks below , to measure the pressure when the train passed ; doctors use it made of pulse logger. Barium titanate to do with underwater detectors, underwater eye is sharp , it is not only able to see the fish , but also you can see the reef , icebergs and enemy submarines under the water and so on .
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