Method for preparing high-strength and high-toughness aluminium alloy aviation safety part through modification

Abstract

The invention discloses a method for preparing a high-strength and toughness aluminium alloy aviation safety part through modification. The method is characterized in that a modification preparation system comprising a heat treatment device, a temperature control module and a computer control center which are connected in sequence is adopted; and the heat treatment device comprises an electric heating furnace, a cold water tank, an external guide rail bracket and a charging carriage. The method comprises the steps of charging, heating, heat preserving, cooling and the like. Through inspection, the mechanical property of the product obtained through treatment of the method can meet the requirement of aviation. Meanwhile, as the product is prepared by carrying out secondary modification on the workpiece processed with the common 2Al2-O aluminium alloy through heat treatment, the cost of the material is low. In addition, the treatment system used in the method is also obtained through combination of many existing conventional tools, so the equipment cost is low and the treatment system has the advantage of low production cost.

Description

technical field [0001] The invention relates to the field of modification and preparation of high-strength and high-toughness aluminum alloys, in particular to a modification and preparation method of high-strength and high-toughness aluminum alloy aviation safety parts. Background technique [0002] Aluminum alloy material has become an ideal aviation light alloy material because of its small specific gravity, high specific strength and high specific stiffness. Aviation safety parts are necessary equipment used to ensure the safety of occupants on aviation aircraft, such as aviation seat safety frames, aviation seat protection belt buckles, etc. Due to the high flight speed of aviation aircraft, the safety parts used for aviation aircraft have higher performance requirements than safety parts used for vehicles, such as high contrast strength and specific stiffness, and the force standard of 3mm≥3060LBF must be met to meet the requirements. . Therefore, in the prior art, t...

AI Technical Summary

Problems solved by technology

Aluminum alloy has the advantages of light weight and low cost, but passenger safety parts processed and manufactured with ordinary aluminum alloy materials can only meet the performance requirements of ordinary vehicles, and cannot meet the force of 3mm ≥ 3060LBF required by aviation safety parts standard requirements

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