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Production method of Al-Cu-Mg-Fe-Ni-series aluminum alloy extruded material

An al-cu-mg-fe-ni, 1. al-cu-mg-fe-ni technology is applied in the production field of Al-Cu-Mg-Fe-Ni series aluminum alloy extrusion materials, and can solve the problem of crystal Uneven particle size, coarse extrusion material, unsatisfactory effect, etc.

Inactive Publication Date: 2021-05-11
SOUTHWEST ALUMINUM GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Al-Cu-Mg-Fe-Ni aluminum alloy is a heat-resistant aluminum alloy material widely used in aerospace and other fields. Due to the lack of recrystallization-inhibiting elements in this alloy system, its extruded materials mostly present coarse recrystallization grains , and the grain size is extremely uneven, which brings many hidden dangers to the use of the product. In order to solve this problem, workers in the industry have conducted many years of research and adopted a variety of processes, but the effect is not ideal

Method used

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  • Production method of Al-Cu-Mg-Fe-Ni-series aluminum alloy extruded material
  • Production method of Al-Cu-Mg-Fe-Ni-series aluminum alloy extruded material
  • Production method of Al-Cu-Mg-Fe-Ni-series aluminum alloy extruded material

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Embodiment 1

[0029] 1) Ingot solution treatment: 2A70 aluminum alloy ingot with a diameter of 300mm was solution treated at 520°C for 15 hours;

[0030] 2) Ingot quenching: Quenching the aluminum alloy ingot after solid solution treatment in water at 60-80°C;

[0031] 3) Ingot heating: heating the quenched ingot to 400°C;

[0032] 4) Extrusion: Extrude the heated ingot, the temperature of the extruding cylinder is 430-450°C, and the extrusion speed is ≤0.2m / min. figure 1 A low-magnification photograph of the aluminum alloy ingot prepared for this example.

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Abstract

The invention provides a production method of an Al-Cu-Mg-Fe-Ni-series aluminum alloy extruded material. The method comprises the following steps that (A) homogenization treatment is performed on an Al-Cu-Mg-Fe-Ni-series aluminum alloy cast ingot, and then solution treatment is performed; (B) the aluminum alloy cast ingot obtained in the step (A) is quenched and then heated; and (C) the aluminum alloy cast ingot obtained in the step (B) is subjected to heat treatment after being extruded. Solution treatment, quenching and re-extrusion are added to the aluminum alloy cast ingot, so that the extruded material has uniform and fine recrystallized grains and excellent mechanical properties, and the requirements of the fields of aerospace and the like on the alloy system material are met.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a production method of an Al-Cu-Mg-Fe-Ni series aluminum alloy extruded material. Background technique [0002] Al-Cu-Mg-Fe-Ni aluminum alloy is a heat-resistant aluminum alloy material widely used in aerospace and other fields. Due to the lack of recrystallization-inhibiting elements in this alloy system, its extruded materials mostly present coarse recrystallization grains , and the grain size is extremely uneven, which brings many hidden dangers to the use of the product. In order to solve this problem, workers in the industry have conducted many years of research and adopted a variety of processes, but the effect is not ideal. Contents of the invention [0003] The technical problem solved by the invention is to provide a production method of Al-Cu-Mg-Fe-Ni aluminum alloy extruded material. The extruded product produced by the process has uniform and fine recrystall...

Claims

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Application Information

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IPC IPC(8): C22F1/04
CPCC22F1/04C22F1/002
Inventor 王小刚
Owner SOUTHWEST ALUMINUM GRP
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