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Rear earth aluminum alloy material

A technology of aluminum alloy materials and rare earths, applied in the direction of metal/alloy conductors, conductors, insulated cables, etc., can solve the problems of high strength of steel strips, difficulty in processing, high cost of copper strip armoring, etc., to improve wear resistance and durability Corrosion performance, improvement of corrosion resistance performance, effect of improvement of corrosion resistance performance

Active Publication Date: 2012-02-08
于贵良 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal material of the metal interlocking armor layer can be copper tape, steel tape or aluminum alloy tape. The cost of using copper tape armor is too high, and it is not suitable for large-scale promotion. The steel tape has high strength, poor toughness, and is not easy to process. , especially this kind of chain processing, and the steel belt is not corrosion-resistant, heavy, and not resistant to electromagnetic interference

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add an alloy composed of the following components into the shaft furnace: 3wt% of Fe, 3wt% of Cu, 3wt% of B, 2wt% of Si, 3wt% of Mg, 3wt% of Zn, 3wt% of rare earth elements, and the rest are aluminum and unavoidable impurities. Keep the temperature at 800°C, add the above-mentioned alloying elements into the molten aluminum, the alloying elements are added in the form of intermediate alloys, after stirring, refining, and slag removal, sampling and analysis before the furnace are carried out after 40 minutes, and cast into aluminum in a rolling mill Alloy bars. The aluminum alloy cast bar is subjected to solution treatment at 530°C for 5 hours, and then the cast bar is introduced into a rolling mill at a temperature of 480°C, extruded into bars, and finally quenched in cold water.

[0022] After testing, the tensile strength of the aluminum alloy strip reaches 290MPa, and the cable can withstand a pressure of 12000N without breakdown, and the cable can withstand an impa...

Embodiment 2

[0025] Add the following alloy into the shaft furnace: 0.5wt% Fe, 0.5wt% Cu, 0.5wt% B, 0.5wt% Si, 0.5wt% Mg, 0.5wt% Zn, 0.5wt% rare earth elements, and the rest are aluminum and unavoidable impurities. Keep the temperature at 750°C, add the above-mentioned alloying elements into the molten aluminum, the alloying elements are added in the form of intermediate alloys, after stirring, refining, and slag removal, sampling and analysis before the furnace are carried out after 40 minutes, and cast into aluminum in a rolling mill Alloy bars. The aluminum alloy cast bar is subjected to solution treatment at 530°C for 5 hours, and then the cast bar is introduced into a rolling mill at a temperature of 480°C, extruded into bars, and finally quenched in cold water.

[0026] It has been tested that the tensile strength of the aluminum alloy strip reaches 300MPa, and the cable can withstand a pressure of 12500N without breakdown, and the cable can withstand an impact force of 30kg without...

Embodiment 3

[0029] Add the following composition alloy into the shaft furnace: 2.0wt% Fe, 1.5wt% Cu, 2.5wt% B, 1.0wt% Si, 2.0wt% Mg, 1.5wt% Zn, 2.5wt% rare earth elements, and the rest are aluminum and unavoidable impurities. Keep the temperature at 780°C, add the above-mentioned alloying elements into the molten aluminum, the alloying elements are added in the form of intermediate alloys, after stirring, refining, and slag removal, sampling and analysis before the furnace are carried out after 40 minutes, and cast into aluminum in a rolling mill Alloy bars. The aluminum alloy cast bar is subjected to solution treatment at 530°C for 5 hours, and then the cast bar is introduced into a rolling mill at a temperature of 480°C, extruded into bars, and finally quenched in cold water.

[0030] It has been tested that the tensile strength of the aluminum alloy strip reaches 280MPa, and the cable can withstand a pressure of 11500N without breakdown, and the cable can withstand an impact force of ...

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Abstract

The invention provides a rear earth aluminum alloy material, comprising the following components in percentage by weight: 0.5-3% of Fe, 0.5-3% of Cu, 0.5-3% of B, 0.5-2% of Si, 0.5-3% of Mg, 0.5-3% of Zn, 0.5-3% of rare earth element and the balance of aluminum and inevitable impurities, wherein the rare earth element is one or more than one selected from Sc, Y, La, Ce, Pr and Nd. The rear earth aluminum alloy material is used for a metal chain armored cable material and has higher mechanical strength and good corrosion resistance performance.

Description

[0001] technical field [0002] The invention belongs to the technical field of electric wires and cables, and in particular relates to a rare earth aluminum alloy conductor material. [0003] Background technique [0004] Metal chain armoring is a new type of armoring method, which has changed the traditional armoring method. The adjacent layers of the armoring tape can realize self-locking interlocking, so this armoring method has greatly changed the steel tape armoring method. The defects of the equipment are eliminated, and the performance is better. The metal material of the metal interlocking armor layer can be copper tape, steel tape or aluminum alloy tape. The cost of using copper tape armor is too high, and it is not suitable for large-scale promotion. The steel tape has high strength, poor toughness, and is not easy to process. , especially this kind of chain processing, and the steel belt is not corrosion-resistant, heavy, and not resistant to electromagnetic in...

Claims

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Application Information

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IPC IPC(8): H01B1/02H01B7/17H01B7/18H01B7/28
Inventor 林泽民
Owner 于贵良
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