Cashmere Shawl,Cashmere Shawl Wrap,Cashmere Pashmina Shawl,Cashmere Stoles INNER MONGOLIA CASHMERE PRODUCTS CO., LTD. , https://www.grpashmina.com
Titanium metal watch what are the pros and cons?
Can be used as a watch material of the metal is roughly stainless steel, ceramic, 18K gold, platinum, tungsten steel, and even made of sapphire glass case Richard Mille RM056 series watch. The use of these materials to make the case is also watch merchants value the excellent properties of these materials, such as ceramic is very wear-resistant, expensive gold and so on. The Richard Mille RM056 watch, made of sapphire as a case material, has become popular in recent years to make watches that are lighter and more corrosion-resistant than titanium stainless steel watches. Titanium and steel compared to the main advantages of low density, corrosion resistance; white metal watch metal and platinum is now hot. This trend makes the so-called "space age" metal - titanium, a large number of watches appear. The number of titanium watches and stainless steel watches is not much, but you now see more than ever before, and more and more. Titanium is a metallic element found in the earth's crust, a shining and shiny metal or silver gray or dark gray powder. Its composition can be found in almost all igneous and titania deposits. Many of the properties of titanium make it extremely industrial and commercial: - Hard: Titanium is 30% harder than steel; - Light in texture: Titanium weighs 47.90 at atomic scale and is approximately 50% lighter than steel; - Anti-corrosion: When exposed to air, titanium forms a tight and strong oxide film on the surface that resists erosion of other metals by different substances. Erosion of salt water is particularly effective. Titanium "space age" metal, not only by aerospace, aviation industry as guests. In civilian medical equipment and sports watches are reflected. The metal was born in 1971, when a British amateur scientist named William George discovered some "reddish brown mineral ash" that he himself did not recognize when analyzing sand from Cornwall. Four years later, an Austrian chemist, Martin Heinrich Klaproth, confirmed that George did find a new element. Klaproth named the new element "Titanium." However, the development of titanium alloys for industrial use is still relatively new. Wilhelm Kroll from Luxembourg is considered the father of the modern titanium industry. During the 1930s Kroll developed a method of working with titanium and improved it during the 1940s, which is still in use today. The emergence of the titanium industry coincides with the rise of the aviation industry, it is the ideal material for building jet aircraft. Before the mid-1970s, more than 85% of the titanium produced was for the aviation industry. The unique properties of titanium: the density of steel half, excellent strength retention (to 1000 degrees Fahrenheit), environmental corrosion resistance is much higher than other metals. This makes it an ideal material for building engine and aircraft frames for jet, rockets and spacecraft. Its military uses are weapons, artillery missiles and retreat aircraft. From the beginning of the 1970s, the price of titanium factory products has been falling off, which makes titanium is widely used in all walks of life. The most common compounds are titanium oxides, often used in the production of pigment coatings, paper products, plastics, glass and pottery. Gem craftsmen should be very interested to know that the stars and stars of the original Ruby and sapphire crystal are all due to the presence of titanium oxide. Shipbuilding engineers also appreciate the superb corrosion resistance of titanium to salt water, so they are used to make propellers, shafts and other parts. The Navy also uses it on submarines. Titanium is not a rare metal and ranks ninth in the crust. Supply of titanium ore can last at least 10,000 years. It has been found in meteorites, lunar rocks, the sun and other planets. However, the titanium extraction process is relatively slow and expensive, which makes it expensive. For many years, high prices have limited the use of titanium in the military and aerospace industries. Titanium has very good advantages as a watch material, such as: 1. Titanium watch to wear very comfortable, because they are surprisingly light; 2. Titanium is anti-allergic, it does not contain nickel, even in the skin when sweat, wear It is also very comfortable; 3. Because titanium is harder than steel, titanium watch is more durable; 4. The corrosion resistance of titanium is particularly suitable for diving table; 5. Titanium is very environmentally friendly, it comes from the earth and recyclable . That titanium alloy can be used as a mechanical watch mechanical material? Unfortunately, I can not. Titanium and steel compared to the main advantages of low density, corrosion resistance, but the absolute hardness and strength are not as good as steel, and poor workability, and not suitable for watch internal parts, but the case still has its advantages, The problem is that it is low brightness, easy to scratch, to rely on (plating) layer to protect. A lot of small holes on the deck, and irregular cutting on the cutting tool is more demanding, if the high splint strength machining more difficult, coupled with the watch movement on the splint material hardness is not high, while anti-wear gem bearing get, Of course, some gadgets have high-strength materials, but gadgets are easily processed by the rules. Therefore, splint material with copper alloy is more appropriate. Copper, though rusty and wear-resistant, is cheap and easy to cut and can be handled in a relatively "low-cost" way through coatings, lubricants, ruby ​​bearings, steel parts and more. Titanium alloy watches nowadays the largest brand is Japan's Citizen. Titanium is very easily soiled and scratched. In order to solve this problem, Citizen made up for it by using "multi-layer glass-coated" patented material on the Promaster Titanium watch, and Citizen Citizen said it was scratch-resistant.