Aluminum alloy semi-ring for fairing of launch vehicle and preparation method thereof

A technology for launch vehicles and aluminum alloys, which is used in metal extrusion control equipment, metal processing equipment, metal extrusion, etc. The effect of processing plasticity and reducing dimensional deformation
CN101760682AActive Publication Date: 2010-06-30NORTHEAST LIGHT ALLOY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEAST LIGHT ALLOY CO LTD
Publication Date
2010-06-30

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Abstract

The invention discloses an aluminum alloy semi-ring for a fairing of a launch vehicle and a preparation method thereof, relating to an alloy semi-ring and a preparation method thereof. The invention solves a problem that the traditional aluminum alloy semi-ring for the fairing of the launch vehicle has a low intensity and cannot satisfy the application requirements of large-scale launch vehicles. The aluminum alloy semi-ring for a fairing of a launch vehicle is made of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti and Al. The tensile strength of the semi-ring is 380-450MPa, the percentage elongation after fracture is 6.0-10% and the Brinell hardness is 110N / sq.m-150N / sq.m. The preparation method comprises the following steps of: preparing the raw material, melting, casting, homogenizing annealing, forging, extruding, bending, quenching, coldly compressing to deform, flattening and ageing the raw materials to obtain the aluminum alloy semi-ring for the fairing of the launch vehicle. The aluminum alloy semi-ring for the fairing of the launch vehicle has a high intensity and can be applied to the large-scale launch vehicle.
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Description

technical field

[0001] The invention relates to an alloy half ring and a preparation method thereof. Background technique

[0002] Aluminum alloy has the characteristics of light weight, small specific gravity and high strength, and has been widely used in various fields. Aluminum alloy half-rings for fairings are important parts of launch vehicles. The existing aluminum alloy half-rings for fairings use the mast bending technology to bend the profile mast into two semicircular half-rings, and then use the half-rings Explosive bolt connection, with the large-scale launch vehicle, various test equipment on the rocket increases, the payload increases, and to simulate the manned, it is necessary to accurately separate the escape cabin, the strength of the existing aluminum alloy half ring for the fairing has been reduced. It cannot meet the application requirements of large launch vehicles. Contents of the invention

[0003] The invention aims to solve the problem that the ...

Claims

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