Unlock instant, AI-driven research and patent intelligence for your innovation.

High-strength Al-Cu-Mg-Ce wrought aluminum alloy and manufacturing method thereof

An al-cu-mg-ce, wrought aluminum alloy technology, applied in the field of high-strength Al-Cu-Mg-Ce wrought aluminum alloy and its preparation, achieves the effects of simple operation, high toughness, and strong versatility

Inactive Publication Date: 2015-09-30
SHENYANG POLYTECHNIC UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the insufficient performance of traditional deformed Al-Cu-Mg alloys, the present invention provides a high-strength Al-Cu-Mg-Ce deformed aluminum alloy and its preparation method, by adding The rare earth element cerium (Ce) improves the toughness of the alloy, and combined with the aging treatment after extrusion, further improves the strength of the alloy to better meet the needs of the above-mentioned industrial fields

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] S1. Take 95.0% of industrial pure aluminum, 4.3% of pure copper and 4.2% of pure magnesium according to the mass percentage. Among them, the burning loss rate of pure magnesium is calculated as 4%. When the body temperature reaches 740°C, weigh 0.5% of the Al-Ce master alloy and add it to the Al-Cu-Mg alloy melt, and stir the alloy liquid slightly to ensure the uniform distribution of alloy elements. The alloy melt was left to stand for 10 minutes, and poured into a metal mold to obtain an aluminum alloy ingot;

[0018] S2. After preheating the obtained aluminum alloy ingot in the temperature range of 400° C. for 2 hours, put it into an extrusion die preheated to 430° C., and extrude it into a rod.

Embodiment 2

[0020] S1. Take 93.4% of industrial pure aluminum, 4.5% of pure copper and 4.6% of pure magnesium according to the mass percentage. Among them, the burning loss rate of pure magnesium is calculated as 4%. When the body temperature reaches 740°C, weigh 1.5% of the Al-Ce master alloy and add it to the Al-Cu-Mg alloy melt, and stir the alloy liquid slightly to ensure the uniform distribution of alloy elements. When the solid material is completely melted, put The alloy melt was left to stand for 10 minutes, and poured into a metal mold to obtain an aluminum alloy ingot;

[0021] S2. After preheating the obtained aluminum alloy ingot in the temperature range of 430° C. for 2 hours, put it into an extrusion die preheated to 440° C., and extrude it into a rod.

Embodiment 3

[0023] S1. Take 94.2% of industrial pure aluminum, 4.4% of pure copper and 4.4% of pure magnesium according to the mass percentage. Among them, the burning loss rate of pure magnesium is calculated as 4%. When the body temperature reaches 740°C, weigh 1% of the Al-Ce master alloy and add it to the Al-Cu-Mg alloy melt, and stir the alloy liquid slightly to ensure the uniform distribution of alloy elements. The alloy melt was left to stand for 10 minutes, and poured into a metal mold to obtain an aluminum alloy ingot;

[0024] S2. After preheating the obtained aluminum alloy ingot in the temperature range of 415° C. for 2 hours, put it into an extrusion die preheated to 435° C., and extrude it into a rod.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses high-strength Al-Cu-Mg-Ce wrought aluminum alloy and a manufacturing method thereof. The wrought aluminum alloy comprises, by weight, 4.3-4.5% of Cu, 0.2-0.6% of Mg, 0.1-0.3% of Ce and the balance of Al. The Al-Cu-Mg-Ce wrought aluminum alloy has high toughness and further has high tensile strength and yield strength. Because the rare earth element Ce is adopted, while microalloying is achieved, the best toughening effect can be achieved, and impurities and inclusions generated due to alloying can be reduced to the maximum degree. Due to the mode of adding the Ce element into Al-Ce intermediate alloy, accurate control over alloying constituents is guaranteed, and the manufacturing method of the alloy is high in universality and easy to implement.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a high-strength Al-Cu-Mg-Ce deformed aluminum alloy and a preparation method thereof. Background technique [0002] Due to the advantages of low density, high specific strength and specific stiffness, and excellent formability, aluminum alloys have been widely used in aerospace, transportation, and machinery manufacturing industries. Most of the traditional aluminum alloy structural parts are produced by casting method. However, during the casting process, problems such as casting defects often occur, seriously reducing productivity, and poor mechanical properties of cast aluminum alloys, which greatly limit the development of aluminum alloy applications. Compared with cast aluminum alloys, wrought aluminum alloys have higher strength, better plasticity and more diverse specifications, which have great advantages in expanding the application fields of aluminum alloy mat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/16
Inventor 李锋陈立佳车欣杨林吴伟张思倩张浩宇
Owner SHENYANG POLYTECHNIC UNIV