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A kind of production technology of aluminum alloy sheet material for aviation

A technology of aluminum alloy sheet and production process, which is applied in the field of production process of aluminum alloy sheet for aviation, can solve problems such as tension deformation of aluminum alloy thick plate, and achieve the purpose of reducing tension deformation, reducing sensitivity, and eliminating the increase of internal tension. Effect

Active Publication Date: 2019-04-19
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the problem that improper quenching easily causes tension deformation of aluminum alloy thick plates in the process of manufacturing aluminum alloy thick plates, the present invention provides a production process of aluminum alloy plates for aviation

Method used

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  • A kind of production technology of aluminum alloy sheet material for aviation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A production process of an aluminum alloy plate for aviation, comprising the steps of:

[0024] A. Calculate the amount of each aluminum alloy raw material and prepare the aluminum alloy raw material according to the ratio. The ratio of the mass percentage of each element in the aluminum alloy plate raw material for aviation is as follows:

[0025] element

Zn

Zr

Mg

Cu

Ti

mn

Ag

Si

Fe

Cr

Impurities

Al

content

8.0

0.10

1.6

0.9

0.1

0.3

0.25

0.04

0.04

0.04

0.15

margin

[0026] Among them, the total content of Zn, Mg and Cu is ≥9%, and the total content of Fe and Si is ≤0.08%. The prepared aluminum alloy raw materials are put into the melting furnace and mixed evenly, and then melted into liquid aluminum alloy, and the liquid aluminum alloy is melted and cast into aluminum alloy. alloy ingot;

[0027] B. Homogenize the aluminum alloy ingot after melting and casting at a temp...

Embodiment 2

[0034] The difference between embodiment 2 and embodiment 1 is that in step A, the mass percentage ratio of each element in the raw material of aluminum alloy plate for aviation is as follows:

[0035] element

Embodiment 3

[0037] The difference between embodiment 3 and embodiment 1 is that in step A, the mass percentage ratio of each element in the raw material of aluminum alloy plate for aviation is as follows:

[0038] element

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Abstract

The invention belongs to the field of production of aluminum alloy sheets and relates to a production process of an aerial aluminum alloy sheet. The formula of the raw materials of the aluminum alloy sheet comprises 8.0%-9.0% of Zn, 0.1%-0.2% of Zr, 1.6%-1.8% of Mg, 0.9%-1.0% of Cu, 0.1%-0.15% of Ti, 0.3%-0.4% of Mn, 0.25%-0.3% of Ag, less than or equal to 0.1% of Si, less than or equal to 0.1% of Fe, less than or equal to 0.04% of Cr, less than or equal to 0.05% of single impurity, less than or equal to 0.15% of total impurities, and the balance of Al, wherein the total content of Zn, Mg and Cu is more than or equal to 9%, the total content of Fe and Si is less than or equal to 0.08%, the formula of the raw materials of the aluminum alloy sheet is improved, a water and ethylene glycol mixture is used to cool the aluminum alloy sheet subjected to solid solution treatment, so that the prepared aluminum alloy sheet eliminates the problems of large internal tension of the aluminum alloy sheet, cracks of the aluminum alloy sheet and the like caused by quenching.

Description

technical field [0001] The invention belongs to the field of aluminum alloy plate production and relates to a production process of aluminum alloy plate for aviation. Background technique [0002] With the rapid development of my country's aerospace industry, rail transit, military vehicles and ship manufacturing equipment industry, especially the launch of my country's large aircraft project, there is an urgent need for domestic production of high-quality, large-scale medium-strength and high-strength weldable 7xxx series aluminum Alloy materials to get rid of foreign control and reduce costs. Domestic Northeast Light Alloy Co., Ltd., Shandong Conglin Group Co., Ltd. and Jilin Midas Co., Ltd. have produced medium-strength weldable 7xxx series aluminum alloy ingots by using the aluminum ingot remelting method, but the current alloy ingots are generally small in size None of them can break through 700mm. More importantly, the domestic and even international basically use alum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/10C22F1/053
CPCC22C21/10C22F1/002C22F1/053
Inventor 宋超崔启为陈闯张丽丽
Owner CHINA ZHONGWANG
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