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High strength aluminium alloy wire and rod and their prepn process

A preparation process, aluminum alloy technology, applied in the direction of metal rolling, etc., can solve the problems of not being able to meet the high-voltage transmission grid, and achieve the effects of avoiding repeated investment, improving overall quality, and reducing energy waste

Active Publication Date: 2007-01-03
GUIZHOU BRANCH CHINA ALUMINUM IND
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AI Technical Summary

Problems solved by technology

Due to the rapid economic growth and the increasingly prominent contradiction between energy and demand, the country needs to transform and expand the steel core transmission wires and cables used in the high-voltage transmission grid, which requires a large number of high-performance and high-strength cables drawn by aluminum alloy poles. Wire products, but the current domestically produced poles are mainly ordinary aluminum poles, which cannot meet the needs of high-voltage transmission grids, and the production of 6201 alloy poles is in a blank state in China

Method used

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  • High strength aluminium alloy wire and rod and their prepn process

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Embodiment Construction

[0014] Embodiment of the present invention: high-strength aluminum alloy wire rod, which contains aluminum, iron, magnesium, silicon, copper, zinc, manganese, chromium, boron, titanium elements, the mass percentage of each element is: iron 0.20%, magnesium 0.65% , silicon 0.60%, copper ≤0.10%, zinc ≤0.10%, manganese ≤0.03%, chromium ≤0.03%, boron ≤0.06%, titanium 0.006%, impurity content ≤0.10%, and the rest is aluminum.

[0015] When preparing the above-mentioned high-strength aluminum alloy wire rod, the following steps are included:

[0016]

[0017] The quality of metal magnesium ingots should meet the requirements of GB / T3499-83 standard level two or above, and the chemical composition should meet the requirements in the table below.

[0018] level

[0019] Then add electrolytic aluminum liquid with a temperature of 760-780°C into the holding furnace from the aluminum inlet of the holding furnace to obtain an aluminum alloy melt after melting, and make...

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Abstract

The present invention discloses one kind of high strength aluminum alloy wire and rod and their preparation process. The high strength aluminum alloy contains Fe 0.15-0.25 wt%, Mg 0.65-0.75 wt%, Si 0.56-0.66 wt%, Cu not more than 0.10 wt%, Zn not more than 0.10 wt%, Mn not more than 0.03 wt%, Cr not more than 0.03 wt%, B not more than 0.06 wt%, Ti 0.006-0.009 wt%, impurity not more than 0.10 wt% and Al for the rest.

Description

Technical field: [0001] The invention relates to an aluminum alloy wire rod and a preparation process thereof, in particular to a 6201 aluminum alloy wire rod and a preparation technology thereof. Background technique: [0002] The 6201 aluminum alloy pole has high strength and high drawability, and can be directly made into high-strength wires or cables, which are used in high-voltage transmission grids with large spans and high carrying capacity. In addition, alloy poles can be used as optical fiber composite overhead The wire (OPGW) can also be used as the preparation line of the CATV broadband access user cable. Due to the rapid economic growth and the increasingly prominent contradiction between energy and demand, the country needs to transform and expand the steel core transmission wires and cables used in the high-voltage transmission grid, which requires a large number of high-performance and high-strength cables drawn by aluminum alloy poles. Wire products, but the...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/03C22B9/05C22B9/02B21B1/16
Inventor 杨孟刚谢青松龚春雷文东辉王先黔刘钢刘世恒张培青王黔生袁斌钟均勇姜治国张金明刘力军王顺辉李世军
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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