2015年1月5日星期一

Precision alloy material objects will become mainstream metal structures

Precision alloy material objects will become mainstream metal structures

Precision titanium alloy bar structure and its products are mainly used in auto parts, communications equipment, aviation equipment, high-speed locomotives and other precision machining accuracy and quality structure, there are strict requirements of the sophisticated areas, in addition, also be applied pillar industries in electrical equipment manufacturing, precision mechanical and electrical equipment manufacturing, and many other national economic development. Titanium is a new structural material, it has excellent performance, such as low density (~ 4.5g cm-3), strength and fracture toughness than the ratio, strength and resistance to fatigue crack propagation ability, good low-temperature toughness, resistance excellent corrosion properties, the maximum operating temperature of some titanium alloys for 550ºC, is expected to reach 700ºC. So it gets increasingly widely used in aviation, aerospace, chemical, shipbuilding and other industrial sectors, is developing rapidly. Light alloy, steel, etc. (σ0.2 / density) versus temperature, stronger than the titanium alloy is higher than other light metals, steel and nickel alloys, and this advantage can be maintained to about 500ºC, so some of the titanium is adapted manufacture of gas turbine components.
In 2011, China's total output of titanium alloy wire die-casting metal casting structure structure of total production increased from 65.68% in 2000 to upgrade to 85.90%, China has become an important area of development of metal structures. At the same time, the world's titanium manufacturing trend to accelerate the transfer to China, where the formation and cost advantages of industrial clusters is one of the main driving forces, titanium China era is opening. Materials and aircraft driven by growing mutual aviation material has been playing a leading and fundamental role. According to the use of different parts, aerospace materials can be divided into airframe materials and engine materials. In the development of modern materials science and technology, the titanium tube body material is not only to lead the development of the aircraft itself, but also led to ground vehicles and spacecraft progress. The development of the engine materials are constantly driving force for industrial innovation and energy industries.
In the automotive sector, the Chinese auto industry continued to grow rapidly in this century, the annual compound growth rate of 18.5%. In 2011, though China's auto industry slowed down, but the country's macroeconomic development trends, the future second and third tier cities will become the focus of economic development. Data show that line the city's markets do fall two to three percentage points per year, three-line market is growing two to three percent per year, by 2020, the total amount of third-tier Chinese city car will account for about 55% of the national share.
In the field of communications, as of the end of February 2012, China's mobile phone users exceeded 1 billion mark, of which 3G subscribers reached 140 million, and in the high-speed growth. Currently 3G subscriber penetration has exceeded the number of seventh overall mobile phone users, and is expected to increase to 20% of the level in the third quarter of 2012. Titanium and oxygen in the air and water vapor high affinity for the sake of making titanium and titanium alloy surface at room temperature to form a high-level stability, strong adhesion permanent oxide film TiO2, and the quality of the titanium oxide film in damage can regenerate immediately after. Because this layer of film to improve its corrosion resistance makes titanium used in the chemical industry, processing industry and power generation industry and other industries in today's harsh environment extensively.

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