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A low-resistance, medium-strength alloy round aluminum rod and production method thereof

A production method and technology for round aluminum rods are applied in the field of alloy round aluminum rods and alloy round aluminum rods with low resistance and medium strength, which can solve the problems of large cable sag, low tensile strength, and reduced resistance value, and achieve the current carrying capacity. The effect of large, large pulling force and increased current carrying capacity

Active Publication Date: 2019-05-03
YUNNAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with ordinary steel-cored aluminum stranded wire with the same aluminum cross-section, high-conductivity energy-saving duralumin wire and aluminum alloy-cored aluminum stranded wire can reduce the overall DC resistance of the wire and reduce power loss, but its Lower tensile strength, larger cable sag

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The low-resistance and medium-strength alloy round aluminum rod of this embodiment contains Si, Fe, Cu, Zn, B, Ti and RE, and the various components are as follows by weight ratio (%): Si: 0.04, Fe: 0.41, Cu: 0.21, Zn: 0.05, B: 0.015, Ti: 0.011 and RE: 0.06, and the balance is Al and unavoidable impurities.

[0022] The production method of the low-resistance and medium-strength alloy round aluminum rod in this embodiment includes a melting process, a casting process and a rolling process, wherein the melting process steps are as follows:

[0023] (1) More than 99.55% of molten aluminum is added to the furnace, and the temperature of the molten aluminum is controlled at 786°C;

[0024] (2), first add 75% copper agent to the aluminum melt to form a CuAl2 strengthening phase, then add 75% iron agent, then add aluminum boron alloy to remove the harmful element vanadium in the aluminum liquid, finally add rare earth alloy, and then use electromagnetic stirring The time is ...

Embodiment 2

[0030] The low-resistance and medium-strength alloy round aluminum rod of this embodiment contains Si, Fe, Cu, Zn, B, Ti and RE, and the various components are as follows by weight ratio (%): Si: 0.05, Fe: 0.28, Cu: 0.27, Zn: 0.04, B: 0.022, Ti: 0.007 and RE: 0.08, and the balance is Al and unavoidable impurities.

[0031] The production method of the low-resistance and medium-strength alloy round aluminum rod in this embodiment includes a melting process, a casting process and a rolling process, wherein the melting process steps are as follows:

[0032] (1) More than 99.57% of molten aluminum is added to the furnace, and the temperature of the molten aluminum is controlled at 791°C;

[0033] (2), first add 75% copper agent to the aluminum melt to form a CuAl2 strengthening phase, then add 75% iron agent, then add aluminum boron alloy to remove the harmful element vanadium in the aluminum liquid, finally add rare earth alloy, and then use electromagnetic stirring The time is ...

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Abstract

The invention relates to a low-resistance intermediate-strength alloy circular aluminum rod. The alloy circular aluminum rod comprises, by weight, 0.03-0.10% of Si, 0.20-0.70% of Fe, 0.10-0.28% of Cu, 0.015-0.06% of Zn, 0.005-0.020% of B, 0.001-0.02% of Ti, 0.05-0.2% of RE, and the balance AL and inevitable impurities. The invention further relates to a production method of the alloy circular aluminum rod. The alloy circular aluminum rod reaches 170 MPa or above in tensible strength and is smaller than 29.00 nohm in resistivity, the cable mounting cost is greatly reduced, and compared with a steel wire aluminum conductor, the current carrying capacity of a cable with the same sectional area is greatly increased, sag increasement of the cable in not obvious, and the alloy circular aluminum rod can be widely applied to large-span cable erection and is in fit with the national energy conservation and environment protection requirement.

Description

technical field [0001] The invention relates to an alloy round aluminum rod, in particular to a low-resistance and medium-strength alloy round aluminum rod, and also relates to a production method thereof, which belongs to the technical field of aluminum alloy wire and cable manufacturing. Background technique [0002] At present, the new energy-saving conductors promoted in my country mainly include high-conductivity energy-saving duralumin conductors, aluminum alloy core aluminum stranded wires, and medium-strength all-aluminum alloy stranded wires. [0003] Compared with ordinary steel-cored aluminum stranded wire with the same aluminum cross-section, high-conductivity energy-saving duralumin wire and aluminum alloy-cored aluminum stranded wire can reduce the overall DC resistance of the wire and reduce power loss, but its The tensile strength is lower and the cable sag is larger. [0004] The medium-strength all-aluminum alloy stranded wire is all made of medium-strengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C21/18C22C1/03C22C1/06C22F1/04C22F1/057H01B1/02
CPCC22C1/026C22C1/03C22C1/06C22C21/00C22C21/14C22C21/18C22F1/04C22F1/057H01B1/023
Inventor 李全陈德斌木群花田光辉王孟金罗建华李顺祥杨亚伟李明陈金花姬凤武
Owner YUNNAN ALUMINUM
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