Esteves

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Originally published as Titanium alloy! Why do people think titanium alloy is awesome when they hear it? What kind of material is it? In some TV programs or on the Internet, we can often see how expensive it is to build an aircraft carrier. This is because the construction of an aircraft carrier involves many technical fields and related materials. Therefore, it is not enough to build an aircraft carrier with money, but also with a strong industrial base and material research and development capabilities. Photo: pixabay It has been reported that a rivet on the deck of an aircraft carrier can be exchanged for a car, which shows how expensive it is. This kind of rivet is not an ordinary rivet. It is a rivet made of titanium alloy material. This kind of expensive titanium alloy rivet is not all over the deck, and only in the place where fighter planes take off and land. Because fighter planes will spray high temperatures of more than 1000 degrees Celsius when taking off, which requires high temperature resistance of the deck, and the welding technology of high temperature resistant materials is not mature, so the assembly between decks needs to be completed by titanium alloy rivets. Titanium alloy is an alloy based on titanium with other elements added. Titanium alloy material has the characteristics of light weight, high strength, low elasticity, high temperature resistance and corrosion resistance. It is mainly used in aero-engine, rocket and missile components. (Titanium is also used in general industry. There are many grades of titanium. Different industries will choose the appropriate grade of titanium according to their requirements.) Titanium alloy is a relatively young metal, which has a history of only 60 or 70 years since it was developed. After entering the 20th century, the traditional steel and aluminum can no longer meet the needs of aerospace, navigation and other fields. In 1954, the titanium alloy material was developed by an American company. Expand the full text Whenever a product is made of titanium alloy, it will attract many people's attention, because titanium alloy is particularly expensive. In many people's eyes, titanium alloy is synonymous with high-grade metal materials. Such precious materials are generally used in aero-engines, and it is also the most ideal material for some sophisticated weapons and equipment. But in fact,Titanium welding pipe, titanium, the main metal of titanium alloy, is not rare. The content of titanium on the earth accounts for 0.45% of the total mass of the earth's crust, second only to iron, aluminum, magnesium and other metal elements. At present, there are more than 140 kinds of known titanium minerals, and the reserves are also very rich. In nature,titanium bar gr5, titanium is found in minerals such as ilmenite and rutile. Pure titanium is silver-gray. It is also a lightweight metal. The density of titanium is only 4.54 grams per cubic centimeter. Its melting point is 1668 degrees Celsius. It has plasticity. What makes titanium so appealing is the quality it possesses. As a lightweight metal, titanium has the highest ratio of weight to strength of any element. It weighs 44% less than steel, but its mechanical strength is similar to that of steel and three times stronger than that of aluminum. Titanium is highly resistant to corrosion. Like aluminum, titanium is covered with a dense oxide film at room temperature. The non-toxic and non-magnetic titanium alloy is also suitable for industrial production; the liquid titanium can be dissolved with almost all metals, so that the liquid titanium can be alloyed with various metals; and by adding other metal elements in a certain proportion, the smelted titanium alloy has the characteristics of light weight, high strength and corrosion resistance, and also has higher strength or higher high temperature resistance, Titanium is the most compatible metal with the human body. It is also used in the medical field, such as heart stent, orthopaedic titanium plate, etc. Titanium alloy is also widely used in some eyeglass frames, watch frames and some sports goods in daily life. Some people wonder why titanium alloy is so valuable when titanium is not rare and there are so many reserves? This will involve metal smelting technology, titanium alloy smelting environment is extremely harsh, titanium in high temperature conditions, titanium plate gr7 ,titanium round bar, chemical activity is small, so smelting titanium alloy must be carried out at high temperature, in general, titanium alloy smelting temperature should be above 800 degrees Celsius, and also in a vacuum environment, this smelting environment is much higher than that of steel and other metals. As the saying goes, rare things are precious. Over time, titanium alloy has become a so-called rare metal, which has led to its high price.
Although the output of titanium alloy is low and the price is high, it does not mean that it is used less. In particular, the use of titanium alloy in some sophisticated weapons and equipment and the most important weapons of the country is also very bold. It is revealed that the titanium alloy used in China's J-20 accounts for about 20% of the weight of the fuselage. These titanium alloys are mainly used as structural materials for the fuselage. At present, titanium alloy material is the most widely used in the aerospace industry, so it is also called "space metal". It has light weight, high strength and high temperature resistance, especially suitable for the manufacture of aerospace vehicles. Many parts that used aluminum alloy before have been replaced by titanium alloy. With the development of technology, the highest speed of the aircraft is now more than three times the speed of sound. Such a fast supersonic flight will cause a lot of heat to be generated by friction between the aircraft and the air. Generally, when the flight speed reaches less than two times the speed of sound, the fuselage can be made of aluminum alloy. When the flight speed reaches more than two times the sound speed, the aluminum alloy can not withstand it. Titanium alloys with high temperature resistance and better performance must be used, and more titanium alloys must be used in the fuselage when the flight speed exceeds three times the speed of sound. Some attack nuclear submarines'internal pressure hull, torpedo cabin and other components are made of titanium alloy, titanium alloy material is non-magnetic, corrosion-resistant, high strength, can effectively resist the shock wave of bombs, and can dive deeper, for example, China's "Jiaolong" manned cabin uses titanium alloy material, can dive to more than 7000 meters. This is equivalent to 7000 tons of pressure per square meter, which is amazing. In addition to the extensive use of titanium alloys in sophisticated equipment such as aviation, rocket engines, submarines, and fighter planes, titanium alloys are also widely used in conventional or individual equipment, such as howitzers and bulletproof helmets. At present, titanium alloy technology is the strongest in the world, and the most widely used is the United States, Russia and China, while China's titanium ore reserves are the first in the world, accounting for 28.9% of the world's total reserves, of which ilmenite reserves are about 720 million tons, accounting for 92% of the world's titanium ore reserves, rutile reserves are about 47 million tons, and the total reserves of the two are about 767 million tons. The smelting and processing of titanium alloys have also been industrialized, so there are no principle and technical problems in the wide application of titanium alloys in various fields in China. It is believed that in the future, titanium alloys, as a "space metal", will no longer be used only in the aerospace field.
The Gif in this article is taken from Youtube "Titanium The STRONGEST METAL On Earth!" And "Nitinol Metallic Muscles with Shape Memory." The pictures in the article are taken from Titanium The _ STRONGEST METAL On Earth! And returned to Sohu to see more. Responsible Editor: (function() { function getBrandHtml() { var brands = [],titanium tubing price, html = ''; for(var i = 0; i < brands.length; i++) { var brand = brands[i]; if(brands.length i+1) { html+= '<a class="username-link" href="'+brand.url+'" target="_blank]'+brand.name+'[/url]'; } else { html+= '<a class="username-link" href="'+brand.url+'" target="_blank]'+brand.name+'[/url]、'; } } return html; }; if(document.getElementById('linkBtn')){ document.getElementById('linkBtn').onclick = function() { $('#brands').removeClass('brand');$ ( '# tipInfo').text ( 'Real name responded'); $ ('#linkBtn').remove();$ ('.real-response .content').css('line-height', '20px');$ ('.real-response .time').css('line-height', '20px'); }; document.getElementById('brands').innerHTML = getBrandHtml(); }; })();。 yunchtitanium.com

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