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Rare earth aluminum alloy power cable and preparation method thereof

A power cable, aluminum alloy technology, applied in the direction of cable/conductor manufacturing, metal/alloy conductors, circuits, etc., can solve the problems of not being able to meet the needs of use, poor ability to transmit electric energy, low operating temperature, etc., to achieve easier peeling, The effect of enhancing the ability to transmit electrical energy and improving the conductivity

Inactive Publication Date: 2019-05-17
湖南欣意电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art: the patent application publication number CN 106504813 A discloses a rare earth aluminum alloy communication power cable, including a conductive core and a communication cable, the conductive core outside the communication cable is a rare earth aluminum alloy conductive core, and a rare earth aluminum alloy conductor core It is Al-Fe-Ag-S-R aluminum alloy, wherein the component weight ratio is: Fe=0.05wt%~0.8wt%, Ag=0.01wt%~0.05wt%, S=0.02wt%~0.25wt%, R= 0.005wt% to 0.25wt%, the rest is Al, wherein S is one or more elements of V, Ti, Cr, Mn, Ni, and R is one or more elements of rare earth elements, Its poor conductivity, low operating temperature, and poor ability to transmit electric energy cannot meet the needs of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A rare earth aluminum alloy power cable, including a conductive core, armor and sheath, the raw material of the conductive core includes the following components by weight: 0.85 parts of Al, 0.05 parts of Fe, 0.01 parts of Mg, 0.01 parts of Si, 0.02 parts of Pr, Nd 0.03 part, Ag 0.02 part.

[0017] A preparation method of a rare earth aluminum alloy power cable, comprising the following steps:

[0018] 1) Calculate and determine the amount of aluminum ingots and master alloys used, and sequentially add Al, Fe, Mg, Si, Pr, Nd, and Ag raw materials into the holding furnace for melting. The melting temperature is 700.0°C. Through smelting, refining, rolling Obtain rare earth high iron aluminum alloy rod;

[0019] 2) The rare earth high iron aluminum alloy rod is drawn into a single wire by a wire drawing machine, and the extrusion temperature is 400.0°C;

[0020] 3) Twist the monofilament through a twisting machine to make a conductive core;

[0021] 4) Perform high-tem...

Embodiment 2

[0025] A rare earth aluminum alloy power cable, including a conductive core, armor and sheath, the raw material of the conductive core includes the following components by weight: 0.90 parts of Al, 0.06 parts of Fe, 0.02 parts of Mg, 0.02 parts of Si, 0.03 parts of Pr, Nd 0.04 part, Ag 0.03 part.

[0026] A preparation method of a rare earth aluminum alloy power cable, comprising the following steps:

[0027] 1) Calculate and determine the amount of aluminum ingots and master alloys used, and sequentially add Al, Fe, Mg, Si, Pr, Nd, and Ag raw materials into the holding furnace for melting. The melting temperature is 720.0°C. Through smelting, refining, rolling Obtain rare earth high iron aluminum alloy rod;

[0028] 2) The rare earth high iron aluminum alloy rod is drawn into a single wire by a wire drawing machine, and the extrusion temperature is 420.0°C;

[0029] 3) Twist the monofilament through a twisting machine to make a conductive core;

[0030] 4) Perform high-tem...

Embodiment 3

[0034] A rare earth aluminum alloy power cable, including a conductive core, armor and sheath, the raw material of the conductive core includes the following components by weight: 0.95 parts of Al, 0.08 parts of Fe, 0.0 parts of Mg, 0.03 parts of Si, 0.04 parts of Pr, Nd 0.05 part, Ag 0.03 part.

[0035] A preparation method of a rare earth aluminum alloy power cable, comprising the following steps:

[0036] 1) Calculate and determine the amount of aluminum ingots and master alloys used, and sequentially add Al, Fe, Mg, Si, Pr, Nd, and Ag raw materials into the holding furnace for melting. The melting temperature is 780.0°C. Through smelting, refining, rolling Obtain rare earth high iron aluminum alloy rod;

[0037] 2) Draw the rare-earth high-iron aluminum alloy rod into a single wire through a wire drawing machine, and the extrusion temperature is 480.0°C;

[0038] 3) Twist the monofilament through a twisting machine to make a conductive core;

[0039] 4) Perform high-tem...

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PUM

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Abstract

The invention discloses a rare earth aluminum alloy power cable. The rare earth aluminum alloy power cable comprises a conductive core, armor and a sheath. The conductive core is prepared from the following raw material components in parts by weight: 0.85-1.00 part of Al, 0.05-0.10 part of Fe, 0.01-0.03 part of Mg, 0.01-0.04 part of Si, 0.02-0.05 part of Pr, 0.03-0.06 part of Nd, and 0.02-0.04 part of Ag. According to the rare earth aluminum alloy power cable, through the diffusion hysteresis of Pr and Nd, first Mg and Si are all reacted, a precipitated phase is completely precipitated from asupersaturated solid solution, electron scattering in the solid solution is reduced, the lattice distortion is reduced, and the electrical conductivity of the cable is greatly improved; the aluminum alloy belt chain armor is adopted, is lighter and easier to peel off than steel belt armor and is convenient to install, bridge installation can be eliminated, and the cost is reduced; the silane crosslinked polyethylene sheath is low in smoke and halogen-free, so that the operating temperature of the cable is improved, and the ability of the cable to transmit electrical energy is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a rare earth aluminum alloy power cable and a preparation method thereof. Background technique [0002] With the continuous advancement of new technologies, OPLC of optical fiber composite low-voltage cables came into being. Using OPLC, the laying of power and communication cables can be completed only once in design and construction. This makes it possible to design and construct power and communication separately in power and network engineering. The situation has changed. OPLC integrates the functions of optical fiber communication and power transmission. Compared with single-function transmission cables, OPLC has the characteristics of high reliability data transmission, convenient connection, small footprint, avoiding secondary wiring, and reducing engineering costs. At the same time, it solves the communication problem of the power grid, which makes OPLC play an import...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22F1/04H01B1/02H01B13/00
Inventor 朱喜英
Owner 湖南欣意电缆有限公司