The application of ultra high strength aluminum alloy in aerospace
aluhm > 02-25-2018, 06:04 AM
Material is the basis of the aircraft structure, aluminum alloy due to its high specific strength, forming and processing performance is good, good corrosion resistance, will serve as a very important aircraft structure materials, the use of a large proportion in large aircraft structures.
Foreign large passenger aircraft from Boeing 707 to now to Boeing 787 and represented a new generation of a large airliner A380, the assessment of comfort, safety, economy and other major commercial performance index, great changes have taken place, the design method is also from the static strength design, damage to the safety design, to the current damage tolerance design, the use of materials from the one-sided pursuit of high strength, the requirement to the fatigue strength of a good material to, besides considering damage tolerance, at the same time, considering the new requirements to the corrosion resistance and low cost, therefore also great changes have taken place in the main structure material, especially with the substantial increase in the amount of advanced composite materials, the traditional great impact the amount of light alloy, such as B787 aircraft composite dosage of 50%, compared to 20% of the amount of aluminum alloy.
Aluminium alloys also play a leading role in the use of civilian aircraft such as the A380 superjumbo.The Boeing 777 is a large commercial passenger jet that Boeing launched in the 1990s, using materials that were more mature in the late 1980s and early 1990s, or commoditized materials in the 1990s.Therefore, its selection has certain representativeness.
It can be seen from the analysis of the models of the manufacturing enterprises of major international commercial airliners that the high-strength aluminum alloy as the structural material of the aircraft still occupies a very important position.In combination with the overall situation of China's development of large-scale civil aircraft, it can be seen that the ultra high strength aluminum alloy has a broad market application prospect in the aviation field.
The application of composite materials in the space structure is expanded, and the application of aluminum alloy in the strategic missile with solid rocket engine is obviously reduced.But in quite a long time in the future, ultra high strength aluminum alloy is still the rocket, the main structure of the space shuttle and the space station and other spacecraft materials, is also one of the important structural materials of missile weapon systems such as.At present, the domestic, outer spaceships, spaceflight and structural components are mainly aluminum alloy.
Application of ultra-high strength aluminum alloy in construction industry.
With green materials in the building materials (reducing material consumption, recycling) requirements of the increase and the increase of doors and Windows in the building industry area, especially in the construction of sports venues, exhibition hall, light the demand of ultra high strength aluminum alloy profile will be huge.
Ultra high strength aluminum alloy, can be used in the construction requirements of lightweight high strength, high plastic profiles, such as sports stadiums, exhibition halls, temporary housing, such as the structure of the material, also can be applied to a certain bearing requirements of aluminium alloy building doors and Windows and glass curtain wall, balcony guardrail, billboards, bridge traffic facilities.
Because of the high strength properties of ultra-high strength aluminum alloy, the overall weight of the building will be greatly reduced, the building structure will be simplified, and the construction materials will be reduced.Due to the high plastic properties of the materials, the structure of the building will be further diversified.Due to the good corrosion resistance of the materials, the maintenance cost of the building will be reduced.At the same time, due to the easy recovery of aluminum alloy materials, the construction waste will be reduced and the environment will be beautified, which will greatly reduce the energy consumption of the construction industry and achieve the goal of energy conservation and emission reduction.
The application of ultra high strength aluminum alloy in other industries.
Ultra high strength aluminum alloy with high strength, high hardness, low density and excellent corrosion resistance, make its in promoting energy conservation and emissions reduction, lower energy consumption per unit GDP and increase economic efficiency has the important position cannot be ignored.It can not only be used in automobile, aviation, aerospace, construction and other fields, but also can be used in bicycle, textile industry, mould and