Aluminum alloy on spacecraft for sale Haomei

The aluminum alloy on the spacecraft is characterized by weldability, which is mainly used in the structure of the sealed shell of the satellite, and is also suitable for joints, brackets and other load-bearing structural parts. Among metal materials, alloy steel is the most widely used structural material in the industry, but in the aerospace field, in addition to a small number of structures using alloy steel, lighter aluminum alloys, titanium alloys, magnesium alloys, etc. are mainly used. At comparable specific modulus, the density of lightweight alloys is much lower.

At present, the aluminum alloys used in spacecraft mainly include aluminum alloy thick plate, aluminum honeycomb plate and aluminum-lithium alloy. Among them, aluminum alloy thick plate has high strength, good toughness, stress resistance and spalling corrosion resistance, and its fracture toughness is good, fatigue crack propagation resistance is strong, and it has good comprehensive properties as a material for aerospace. In addition, the structure of aluminum honeycomb sandwich panel is widely used in the aerospace field with its characteristics of high specific strength, high specific stiffness, good heat and vibration insulation performance, and strong designability, and has become the main load-bearing structure of modern satellites. The aluminum-lithium alloy developed in the 80s of the 20th century is considered to be the most ideal structural material in the aerospace field in the 21st century due to the addition of lithium can reduce the density of the alloy and increase the stiffness, while still maintaining high strength, good corrosion and fatigue resistance and suitable ductility. The above three types of aluminum alloys will be the direction and focus of China's research efforts in aluminum alloys due to their excellent performance in the aerospace field.

In summary, the application of aluminum alloy in the aerospace field is mainly because it is an ultra-high-strength deformed aluminum alloy with good mechanical and processing properties, good plasticity after solution treatment, good heat treatment strengthening effect, generally below 150 °C (or even higher) has high strength, good toughness, and is an ideal structural material.