Thermal-cracking-resistant cable-used copper alloy conductive material and preparation method thereof

A technology of conductive materials and copper alloys, applied in the direction of conductive materials, conductive materials, cable/conductor manufacturing, etc., can solve the problems of copper alloy thermal processing performance, insufficient thermal cracking resistance, etc. Effects of thermal tearing properties and excellent tensile strength

Inactive Publication Date: 2019-12-31
郑家法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hot workability of this copper alloy is average, especially the thermal cracking resistance is insufficient, and there is room for further improvement

Method used

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  • Thermal-cracking-resistant cable-used copper alloy conductive material and preparation method thereof
  • Thermal-cracking-resistant cable-used copper alloy conductive material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:

[0051] Ni 0.15wt%,

[0052] Cr 0.9wt%,

[0053] Ba 0.3wt%,

[0054] Mo 0.15wt%,

[0055] Ge 0.7wt%,

[0056] Mg 1.0wt%,

[0057] The balance is Cu.

[0058] The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:

[0059] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 730°C, keep the temperature constant, and smelt for 0.5h;

[0060] (2) Raise the temperature to 1120°C, keep the temperature fixed, and smelt for 1.5h;

[0061] (3) Lower the temperature of the melting furnace to 710°C and keep it warm for 2 hours;

[0062] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn in...

Embodiment 2

[0064] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:

[0065] Ni 0.1wt%,

[0066] Cr 1.2wt%,

[0067] Ba 0.1wt%,

[0068] Mo 0.2wt%,

[0069] Ge 0.5wt%,

[0070] Mg 1.3wt%,

[0071] The balance is Cu.

[0072] The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:

[0073] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 750°C, keep the temperature constant, and smelt for 1 hour;

[0074] (2) Raise the temperature to 1120°C, keep the temperature fixed, and smelt for 1.5h;

[0075] (3) Lower the temperature of the melting furnace to 730°C and keep it warm for 2 hours;

[0076] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn in...

Embodiment 3

[0078] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:

[0079] Ni 0.2wt%,

[0080] Cr 0.5wt%,

[0081] Ba 0.5wt%,

[0082] Mo 0.1wt%,

[0083] Ge 0.9wt%,

[0084] Mg 0.7wt%,

[0085] The balance is Cu.

[0086]The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:

[0087] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 740°C, keep the temperature constant, and smelt for 0.5h;

[0088] (2) Raise the temperature to 1150°C, keep the temperature fixed, and smelt for 2 hours;

[0089] (3) Lower the temperature of the melting furnace to 750°C and keep it warm for 1 hour;

[0090] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn int...

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Abstract

The invention discloses a thermal-cracking-resistant cable-used copper alloy conductive material, which is prepared from the following raw materials in percentage by weight: 0.1 wt%-0.2 wt% of Ni, 0.5wt%-1.2 wt% of Cr, 0.1 wt%-0.5 wt% of Ba, 0.1 wt%-0.2 wt% of Mo, 0.5 wt%-0.9 wt% of Ge, 0.7 wt%-1.3 wt% of Mg and the rest being Cu. The copper alloy conductive material provided by the invention hasvery excellent tensile strength, conductivity and thermal cracking resistance. The contents of Ni, Cr, Ba, Mo, Ge and Mg in a specific range are screened out through research, so that the thermal cracking resistance of the prepared copper alloy is greatly improved on the basis that the tensile strength and the conductivity are not influenced, and the actual performance requirements of hot workingare better met.

Description

technical field [0001] The invention belongs to the field of metal conductive materials, in particular to a copper alloy conductive material for cables and a preparation method thereof. Background technique [0002] As the main carrier of power transmission, wire and cable are widely used in electrical equipment, lighting circuits, household appliances, etc. The quality of wire and cable directly affects the quality of the project and the safety of consumers' lives and property. [0003] At present, the prior art has disclosed some technical solutions of copper alloy conductive materials for cables. For example, the Chinese patent application with publication number CN 108133765A discloses a copper alloy conductive material for cables, which is made of the following raw materials in weight percentage : Ni 0.3wt%-0.7wt%, Cr 0.1wt%-0.2wt%, Ba 0.1wt%-0.5wt%, Mo 0.3wt%-0.7wt%, Ge 0.1wt%-0.3wt%, Mg 0.1wt% -0.3wt%, the balance is Cu. The copper alloy conductive material for cabl...

Claims

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Application Information

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IPC IPC(8): H01B1/02H01B13/00C22C9/00C22C1/02
CPCC22C1/02C22C9/00H01B1/026H01B13/00H01B13/0006H01B13/0016
Inventor 郑家法
Owner 郑家法
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