Method for producing high-strength high-conductivity aluminum alloy conductor

An aluminum alloy wire, high conductivity technology, applied in the direction of metal/alloy conductors, circuits, electrical components, etc., can solve the problem that continuous casting and rolling aluminum alloy round rods are prone to breakage, difficult to meet the requirements of all-aluminum alloy strands, and the impact of Production continuity and stability, etc., to achieve the effect of improving plasticity and tissue density, enhancing strength, and improving purity

Active Publication Date: 2015-04-22
GUANGDONG SHINE CABLES
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, with the increase of the content of Mg and Si elements, the continuous casting and rolling aluminum alloy round rods are prone to fracture, which will seriously affect the continuity and stability of production.
The content of Mg and Si elements in the aluminum alloy wires currently produced by the enterprise is usually lower than 0.9%, the tensile strength of the wires is lower than 300MPa, and the electrical conductivity is lower than 55%IACS. It is difficult to meet the requirements of long-distance and large-span overhead transmission lines. Alloy Stranded Wire Requirements

Method used

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  • Method for producing high-strength high-conductivity aluminum alloy conductor

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Embodiment 1

[0026] Adopt the present invention to produce the aluminum alloy wire that diameter is 5 millimeters. The main production equipment is a 15-ton natural gas aluminum melting furnace, a 15-ton tilting holding furnace, a four-wheel belt continuous casting machine, and a 15-stand Y-shaped continuous rolling mill. The diameter of the crystallization wheel of the continuous casting machine is 1.5 meters, and the cross-sectional area of ​​the wheel groove of the continuous casting machine is 2400 square millimeters. An ultrasonic vibrating rod is arranged obliquely at the injection port of the aluminum alloy liquid of the continuous casting machine. The lower end of the ultrasonic vibrating rod It is located in the center of the wheel groove of the crystal wheel of the continuous casting machine, and its upper end is fixedly connected with the ultrasonic transducer. The ultrasonic transducer is connected with the ultrasonic generator through a cable, and the ultrasonic transducer and ...

Embodiment 2

[0036] Adopt the present invention to produce the aluminum alloy wire that diameter is 2.5 millimeters. The main production equipment is a 15-ton natural gas aluminum melting furnace, a 15-ton tilting holding furnace, a four-wheel belt continuous casting machine, and a 15-stand Y-shaped continuous rolling mill. The diameter of the crystallization wheel of the continuous casting machine is 1.5 meters, and the cross-sectional area of ​​the wheel groove of the continuous casting machine is 2400 square millimeters. An ultrasonic vibrating rod is arranged obliquely at the injection port of the aluminum alloy liquid of the continuous casting machine. The lower end of the ultrasonic vibrating rod It is located in the center of the wheel groove of the crystal wheel of the continuous casting machine, and its upper end is fixedly connected with the ultrasonic transducer. The ultrasonic transducer is connected with the ultrasonic generator through a cable, and the ultrasonic transducer an...

Embodiment 3

[0046] Adopt the present invention to produce the aluminum alloy wire that diameter is 1 millimeter. The main production equipment is a 15-ton natural gas aluminum melting furnace, a 15-ton tilting holding furnace, a four-wheel belt continuous casting machine, and a 15-stand Y-shaped continuous rolling mill. The diameter of the crystallization wheel of the continuous casting machine is 1.5 meters, and the cross-sectional area of ​​the wheel groove of the continuous casting machine is 2400 square millimeters. An ultrasonic vibrating rod is arranged obliquely at the injection port of the aluminum alloy liquid of the continuous casting machine. The lower end of the ultrasonic vibrating rod It is located in the center of the wheel groove of the crystal wheel of the continuous casting machine, and its upper end is fixedly connected with the ultrasonic transducer. The ultrasonic transducer is connected with the ultrasonic generator through a cable, and the ultrasonic transducer and t...

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Abstract

A method for producing a high-strength high-conductivity aluminum alloy conductor comprises the following steps that molten aluminum is manufactured, molten aluminum alloy with 1.2 percent to 1.8 percent of Mg and 1.0 percent to 1.5 percent of Si by mass is prepared, two-stage degassing and two-stage filtering outside a furnace are carried out, and ultraphonic continuous casting and rolling, annealing, drawing and aging treatment are carried out. The purity of the molten aluminum alloy is improved by improving the content of Mg and Si through two-stage degassing and two-stage filtering outside the furnace, the produced aluminum alloy conductor has high strength and high conductivity at the same time, ultraphonic continuous casting and rolling are adopted, the problem that an aluminum alloy round bar is prone to being broken is solved, an enterprise can produce the high-strength high-conductivity aluminum alloy conductor continuously and stably, the tensile strength of the aluminum alloy conductor is 330 MPa to 365 MPa, the conductivity is 56 percent IACS to 58 percent IACS, the need of construction of a long-distance large-span overhead transmission line for a full-aluminum-alloy strand is met, and the electric energy loss of the transmission line is lowered.

Description

technical field [0001] The invention belongs to the field of aluminum alloy wire manufacturing, and in particular relates to a production method of a high-strength, high-conductivity aluminum alloy wire. Background technique [0002] The cables of the existing long-distance and large-span overhead transmission lines in my country are mainly steel-cored aluminum stranded wires processed from pure aluminum conductors. The power loss of such steel-cored aluminum stranded wires is relatively large. In order to reduce the power loss of transmission lines, it is urgent to develop high-strength, high-conductivity aluminum alloy conductors to manufacture all-aluminum alloy stranded wires to replace traditional steel-reinforced aluminum stranded wires. However, the production of high-strength and high-conductivity aluminum alloy wires is more difficult, because the strength and conductivity of aluminum alloy wires are difficult to reach high values ​​at the same time. [0003] A lit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B1/02C22F1/04B21B1/46B21B11/00
Inventor 王顺成郑开宏雷文魁张冬平张志敏丁俊旺
Owner GUANGDONG SHINE CABLES
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