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Heat-resistant all aluminum alloy conductor and manufacturing method thereof

The technology of an aluminum alloy wire and its manufacturing method, which is applied in the field of overhead power transmission wires, can solve the problems of high cost, etc., and achieve the effects of reduced overall cost, simple wire connection, and superior heat resistance

Inactive Publication Date: 2011-04-13
江苏南瑞淮胜电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum alloy wires produced in my country have always been deficient in technology and technology, and the cost of imported aluminum alloy wires

Method used

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  • Heat-resistant all aluminum alloy conductor and manufacturing method thereof
  • Heat-resistant all aluminum alloy conductor and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: Manufacture heat-resistant aluminum alloy wire according to the following specific steps:

[0018] 1. Magnesium Mg: 0.40% by weight, silicon Si: 0.05%, zirconium Zr: 0.2%, iron Fe: 0.15%, boron B: 0.001%, rare earth: 0.05%, copper Cu: <0.01%, titanium Ti , vanadium V, manganese Mn, chromium Cr < 0.01%, the rest is aluminum Al and unavoidable impurities, which are added to the shaft furnace;

[0019] 2. It takes 2 hours to raise the temperature to 730°C for refining, and stir within the range of not more than 10 cycles per minute, and the time is not less than 10 minutes;

[0020] 3. After refining and slag removal, control the temperature of the aluminum alloy liquid at 730°C and let it stand for 1 hour. Use a photoelectric direct reading spectrometer for sampling analysis and adjustment before the furnace to control the content of elements;

[0021] 4. The aluminum alloy liquid enters the aluminum rod continuous casting and rolling unit through the alumi...

Embodiment 2

[0025] Embodiment 2: Manufacture heat-resistant aluminum alloy wire according to the following specific steps:

[0026] 1. Magnesium Mg: 0.60% by weight, silicon Si: 0.2%, zirconium Zr: 0.35%, iron Fe: 0.575%, boron B: 0.1%, rare earth: 0.175%, copper Cu: <0.01%, titanium Ti , vanadium V, manganese Mn, chromium Cr < 0.01%, the rest is aluminum Al and unavoidable impurities, which are added to the shaft furnace;

[0027] 2. It takes 3.5 hours to raise the temperature to 755°C for refining, and stir within the range of not more than 10 cycles per minute, and the time is not less than 10 minutes;

[0028] 3. After refining and slag removal, control the temperature of the aluminum alloy liquid at 755°C and let it stand for 1 hour, and use a photoelectric direct reading spectrometer for sampling analysis and adjustment before the furnace to control the content of elements;

[0029] 4. The aluminum alloy liquid enters the aluminum rod continuous casting and rolling unit through the...

Embodiment 3

[0033] Embodiment 3: manufacture heat-resistant aluminum alloy wire according to the following specific steps:

[0034] 1. Magnesium Mg: 0.80% by weight, silicon Si: 0.35%, zirconium Zr: 0.5%, iron Fe: 1.0%, boron B: 0.2%, rare earth: 0.3%, copper Cu: <0.01%, titanium Ti , vanadium V, manganese Mn, chromium Cr < 0.01%, the rest is aluminum Al and unavoidable impurities, which are added to the shaft furnace;

[0035] 2. It takes 5 hours to raise the temperature to 780°C for refining, and stir within the range of not more than 10 cycles per minute, and the time is not less than 10 minutes;

[0036] 3. After refining and slag removal, control the temperature of the aluminum alloy liquid at 750°C and let it stand for 1 hour. Use a photoelectric direct-reading spectrometer for sampling analysis and adjustment before the furnace to control the content of elements;

[0037] 4. The aluminum alloy liquid enters the aluminum rod continuous casting and rolling unit through the aluminum ...

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Abstract

The invention discloses a heat-resistant all aluminum alloy conductor and a manufacturing method thereof. The heat-resistant all aluminum alloy conductor comprises the following elements by weight percent: 0.40-0.80% of Mg, 0.05-0.35% of Si, 0.2-0.5% of Zr, 0.15-1.0% of Fe, 0.001-0.2% of B, 0.05-0.35 of rare earth, less than 0.01% of Cu, less than 0.01% of the sum of Ti, V, Mn and Cr, and the balance Al and inevitable impurities. The manufacturing method of the invention comprises the following steps: feeding Al, Mg, Si, Zr, Fe, B and rare earth in a furnace, alloying, stirring, standing, casting, rolling, performing wire drawing, performing artificial ageing treatment and stranding. The heat-resistant all aluminum alloy conductor has excellent heat resistance, light mass, large carrying capability, higher strength, corrosion resistance and abrasion resistance; and the transmission capability of transmission lines is effectively increased and the service lives of the transmission lines are effectively prolonged.

Description

technical field [0001] The invention relates to a heat-resistant all-aluminum alloy wire and a manufacturing method thereof, belonging to the technical field of overhead power transmission wires. Background technique [0002] With the rapid growth of my country's electricity demand, the requirements for power energy transmission are also getting higher and higher. Especially in the strategic deployment of "West-East Power Transmission, North-South Mutual Supply, and National Networking", transmission lines have the characteristics of long transmission distance, large transmission capacity, and strong ability to resist natural disasters. Therefore, more proposals are made for overhead transmission lines high demands. However, at present, the wires used in overhead transmission lines in my country are still mainly traditional steel-reinforced aluminum stranded wires. Due to their relatively weak heat resistance, low tension-to-weight ratio, easy corrosion, and the ab...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22F1/047
Inventor 邓显波李一杰庄永生
Owner 江苏南瑞淮胜电缆有限公司
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