Aviation aluminum is mainly used in the manufacture of fuel tanks and combustion aid tanks in rockets and spacecraft. 2014 aluminum sheet is the earliest choice. Later, due to the development and maturity of automatic welding technology, 2219 aluminum was used instead. In terms of stress corrosion cracking performance, 2219 alloy is superior to 2014 alloy. The fuel tanks of the American Thor-Deha and SatiimS-II are all made of 2219 aluminum alloy.
2219 aluminum sheet is a heat-resistant alloy with low temperature performance (including the toughness of the welded joint) that also increases with the decrease of temperature. Therefore, when the 2219 alloy is used to manufacture liquid oxygen and liquid hydrogen containers, the reliability at the temperature of liquid hydrogen can be guaranteed according to the principle of room temperature strength standard detection.
Except for the fuel and combustion aid tanks, the other structures of the rocket and the space shuttle are the same as those of the aircraft that most of them use 2024 and 7075 alloys. 2219 aluminum plate is also used. he astronaut cabin of the American space shuttle is made of aluminum.
Most of the main parts of the skeleton and the joystick of the planted aircraft are made by cutting high-strength aluminum alloy 7075-T73 bar material, which is thin, light and has high strength. Other parts such as the bracket, the pressing plate folding device, the protective plate, the door and the skin plate, the nitrogen cylinder of the two thrusters, etc. are made of the medium strength alloy 6061-T6 alloy with good forming properties.
2219 aluminum plate is an Al-Cu-Mn high-strength aluminum alloy. It has excellent high and low temperature mechanical properties and weldability, and has low stress corrosion cracking sensitivity. It is widely used in the structure of aerospace vehicle tanks.
Since the 1970s, it has completely replaced 2014 aluminum alloy as the main material of the storage tank, and it has been used until now 2A14 aluminum alloys are prone to liquefaction cracks during fusion welding. Therefore, the new generation of carrier rocket tanks was developed with better weldable 2019 aluminum plate as the main material of the propellant tank. Welcome to leave message below to inquire it.
Original Source:https://www.aircraftaluminium.com/a/the-application-of-2219-aluminum-in-aerospace-industry.html
Tags: aviation aluminum ,
Contact Us
