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Preparation process of high-strength corrosion-resistant aluminum alloy and high-strength corrosion-resistant aluminum alloy

A corrosion-resistant aluminum alloy and a technology for the preparation process are applied in the field of aluminum alloys for automotive heat exchange system accumulators, and can solve problems such as insufficient strength of aluminum-manganese aluminum alloys.

Active Publication Date: 2017-08-11
ASIA PACIFIC LIGHT ALLOY NANTONG TECH
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  • Abstract
  • Description
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Problems solved by technology

[0003] As mentioned above, the present invention is to solve the problem of insufficient strength of the existing aluminum-manganese aluminum alloys, and to provide an aluminum-manganese-copper aluminum alloy with higher strength and better corrosion resistance and its preparation process

Method used

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  • Preparation process of high-strength corrosion-resistant aluminum alloy and high-strength corrosion-resistant aluminum alloy
  • Preparation process of high-strength corrosion-resistant aluminum alloy and high-strength corrosion-resistant aluminum alloy
  • Preparation process of high-strength corrosion-resistant aluminum alloy and high-strength corrosion-resistant aluminum alloy

Examples

Experimental program
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Embodiment 1

[0027] The mechanical properties of Example 1 and Comparative Example are shown in the table below.

[0028] Tensile (Mpa) Yield (Mpa) Elongation (%) Embodiment one 163.3 78.6 27 comparative example 106.7 50.4 28.3

[0029] As mentioned above, the present application determines a high-strength corrosion-resistant aluminum-manganese-copper (Al-Mn-Cu) alloy and its production process, which can be applied to the liquid reservoir of the automobile heat exchange system. In this application, by increasing the content of copper element in the aluminum-manganese (Al-Mn) alloy, reducing the potential difference between the grain boundary and the grain inside the alloy, it can promote pitting corrosion to become comprehensive uniform corrosion, thereby improving the corrosion resistance of the alloy . At the same time, the existence of copper element can promote the precipitation of T phase in the form of dispersed particles in the alloy during homo...

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Abstract

The application discloses a preparation process of a high-strength corrosion-resistant aluminum alloy and the high-strength corrosion-resistant aluminum alloy. High-strength corrosion-resistant aluminum alloy is processed from high-strength corrosion-resistant aluminum alloy raw materials. The weight percent composition of the high-strength corrosion-resistant aluminum alloy raw material is: 0.45-0.60 weight percent silicon, 0-0.25 weight percent iron, 0.40-0.50 weight percent copper, 1.2-1.45 weight percent manganese, 0-0.04 weight percent magnesium, 0-0.04 weight percent chromium, 0-0.05 weight percent zinc, and the rest aluminum.

Description

technical field [0001] The application belongs to the field of high-strength, high-corrosion-resistant aluminum alloys, in particular, it relates to aluminum alloys suitable for liquid reservoirs in automotive heat exchange systems. Background technique [0002] Aluminum alloy is an alloy with aluminum as the matrix element. It has the characteristics of low density, high specific strength, good plasticity, good electrical and thermal conductivity, and excellent corrosion resistance, so it has been widely used in aerospace, aviation, automobile and other fields. Common alloying elements are copper, manganese, magnesium, silicon and so on. Aluminum-manganese alloys have been widely used in automotive heat exchange systems due to their good corrosion resistance and suitable mechanical properties. However, the strength of the existing aluminum-manganese aluminum alloys is generally low, which leads to the problems of large thermal deformation, high temperature resistance and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/06
Inventor 李其荣
Owner ASIA PACIFIC LIGHT ALLOY NANTONG TECH
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