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A kind of preparation method and product of high thermal conductivity deformed aluminum alloy

A technology of deforming aluminum alloys and high thermal conductivity, applied in the field of aluminum alloys, can solve the problems of more strength decline and less stable performance, and achieve the effect of eliminating segregation, good grain orientation, and good precipitation phase orientation.

Active Publication Date: 2021-01-15
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main disadvantage of commercial heat-resistant aluminum alloys is that the performance is not stable enough, and the strength drops more at high temperatures, which cannot fully meet the requirements of its use in aerospace, military, automobile and other industries under a wide operating temperature range. Higher requirements for strength stability

Method used

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  • A kind of preparation method and product of high thermal conductivity deformed aluminum alloy
  • A kind of preparation method and product of high thermal conductivity deformed aluminum alloy
  • A kind of preparation method and product of high thermal conductivity deformed aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of High Thermal Conductivity Deformed Aluminum Alloy

[0030] (1) Solution treatment: heat the Al-5Zn-2Mg-1.5Cu alloy ingot at a rate of 50°C / h to 350°C and keep it for 1.5h, then heat it up to 460°C for 0.5h and keep it for 7h, and finally in the room Warm water quenching;

[0031] (2) Extrusion treatment: heat the Al-5Zn-2Mg-1.5Cu alloy ingot after step (1) to 440°C, press the extrusion ratio to be 20, and the extrusion speed to be 10mm / s for extrusion treatment, Obtain Al-5Zn-2Mg-1.5Cu alloy extruded rods;

[0032] (3) Aging treatment: heating the Al-5Zn-2Mg-1.5Cu alloy extruded rod obtained in step (2) to 140° C., keeping it warm for 8 hours, and then cooling to room temperature;

[0033] (4) Pre-deformation treatment: carry out 8% pre-compression deformation treatment along the extrusion direction to the Al-5Zn-2Mg-1.5Cu alloy extruded bar after step (3);

[0034] (5) Annealing treatment: heat the extruded 7075 alloy rod treated in step (4) to 180° C...

Embodiment 2

[0036] Preparation of High Thermal Conductivity Deformed Aluminum Alloy

[0037] (1) Solution treatment: heat the Al-6Zn-2Mg-1.5Cu alloy ingot at a rate of 50°C / h to 350°C and keep it for 2 hours, then heat it up to 460°C for 1.5 hours and keep it for 8 hours. Quenching;

[0038] (2) Extrusion treatment: heat the Al-6Zn-2Mg-1.5Cu alloy ingot after step (1) to 450°C, press the extrusion ratio to be 25, and the extrusion speed to be 13mm / s for extrusion treatment, Obtain Al-6Zn-2Mg-1.5Cu alloy extruded rod;

[0039] (3) Aging treatment: heating the extruded Al-6Zn-2Mg-1.5Cu alloy rod obtained in step (2) to 150° C., keeping it warm for 10 hours, and then cooling to room temperature;

[0040] (4) Pre-deformation treatment: the Al-6Zn-2Mg-1.5Cu alloy extruded bar after step (3) is subjected to 9% pre-compression deformation treatment along the extrusion direction;

[0041] (5) Annealing treatment: heat the Al-6Zn-2Mg-1.5Cu alloy extruded bar after step (4) to 190°C, keep it for...

Embodiment 3

[0043] Preparation of High Thermal Conductivity Deformed Aluminum Alloy

[0044] (1) Solution treatment: heat up the Al-6Zn-3Mg-2Cu alloy ingot at a rate of 80°C / h to 400°C and keep it for 8 hours, then heat it up to 460°C for 2 hours and keep it for 8 hours, and finally cool it in water at room temperature ;

[0045] (2) Extrusion treatment: heat the Al-6Zn-3Mg-2Cu alloy ingot processed in step (1) to 460°C, press the extrusion ratio to be 20, and the extrusion speed to be 10mm / s for extrusion treatment to obtain Al-6Zn-3Mg-2Cu alloy extrusion rod;

[0046] (3) Aging treatment: heating the extruded Al-6Zn-3Mg-2Cu alloy rod obtained in step (2) to 160° C., keeping it warm for 8 hours, and then cooling to room temperature;

[0047] (4) Pre-deformation treatment: carry out 8% pre-compression deformation treatment along the extrusion direction to the Al-6Zn-3Mg-2Cu alloy extruded bar after step (3);

[0048] (5) Annealing treatment: heat the extruded Al-6Zn-3Mg-2Cu alloy bar a...

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Abstract

The invention relates to a preparation method and product of high-thermal-conductivity wrought aluminum alloy, and belongs to the technical field of aluminum alloy. The method comprises five working procedures including solid solution treatment, extrusion treatment, aging treatment, pre-deformation treatment and annealing treatment. According to the preparation method and product of the high-thermal-conductivity wrought aluminum alloy, by combining plastic deformation and thermal treatment, and reasonably setting the technological conditions of all the working procedures, the purpose of havingbetter control over the grain orientation and the precipitated phase orientation in aluminum alloy is achieved, and the finally prepared aluminum alloy has the higher thermal conductivity. The preparation method and product of the high-thermal-conductivity wrought aluminum alloy is simple, easy to operate, low in requirements for equipment, low in cost, and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and specifically relates to a preparation method and product of a highly thermally conductive deformable aluminum alloy, in particular to a method for preparing a highly thermally conductive deformable aluminum alloy by combining plastic deformation and heat treatment and a product prepared by the method. Background technique [0002] Aluminum is a lightweight metal structural material that is increasingly used in automobiles. The use of aluminum alloy in automobiles can reduce weight and reduce exhaust emissions. Therefore, the research and development of aluminum alloys is of great significance for saving energy and suppressing environmental pollution. However, the poor strength and heat resistance of aluminum alloys seriously hinders its application in aerospace, military, automobile and other industries. Therefore, improving the strength and heat resistance of aluminum alloys is an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/10C22F1/053
CPCC22C21/10C22F1/053
Inventor 吕正风隋来智程仁寨隋信磊马旭肖栋郑卓阳王丹任伟才付凯
Owner SHANDONG NANSHAN ALUMINUM
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