Copper alloy and aluminum alloy composite wire and preparation processing method thereof

A technology of composite wire and processing method, which is applied in the field of plastic processing and heat treatment of non-ferrous metal materials, to achieve the effects of enhanced bonding strength, good electrical conductivity, and improved electrical conductivity

Active Publication Date: 2016-07-20
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to propose a copper alloy and aluminum alloy composite wire and its prepa

Method used

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  • Copper alloy and aluminum alloy composite wire and preparation processing method thereof
  • Copper alloy and aluminum alloy composite wire and preparation processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1:

[0047] The structure and composition of the composite wire used are shown in Example 1 in Table 1.

[0048] The specific process route is:

[0049] A copper alloy ingot with a diameter of 95mm is hot-extruded into a tube blank with an outer diameter of 50mm and a wall thickness of 10mm. Secondary cold rolling in each pass to an outer diameter of 23 mm and a wall thickness of 4 mm, straightening, face milling, and pickling.

[0050] Aluminum alloy ingots with a diameter of 70mm are hot-extruded into rods with a diameter of 18mm, straightened and cleaned.

[0051] The copper alloy tube and the aluminum alloy rod are combined and cold-rolled to a diameter of 8mm in 11 passes, the composite rod is drawn to a diameter of 1.2mm in 24 passes after one heat treatment, and finally the composite wire is made into a finished composite wire after a second heat treatment .

[0052] The specific process parameters are as follows:

[0053] (1) Copper alloy pipe extru...

Example Embodiment

[0063] Example 2:

[0064] The structure and composition of the composite wire used are shown in Example 2 in Table 1.

[0065] The specific process route is:

[0066] The copper alloy ingot with a diameter of 95mm is hot-extruded into a tube blank with an outer diameter of 40mm and a wall thickness of 10mm. The second pass is cold rolling to an outer diameter of 18mm and a wall thickness of 4mm, straightening, face milling, and pickling.

[0067] Aluminum alloy ingots with a diameter of 70 mm are hot-extruded into rods with a diameter of 13 mm, straightened and cleaned.

[0068] The copper alloy tube and the aluminum alloy rod are combined and cold-drawn to a diameter of 6mm in 11 passes, the composite rod is drawn to a diameter of 1mm in 28 passes after one heat treatment, and finally the composite wire is made into a finished composite wire after a second heat treatment .

[0069] The specific process parameters are as follows:

[0070] (1) Copper alloy pipe extrusion ...

Example Embodiment

[0080] Example 3:

[0081] The structure and composition of the composite wire used are shown in Example 3 in Table 1.

[0082] The specific process route is:

[0083] A copper alloy ingot with a diameter of 95mm is hot-extruded into a tube blank with an outer diameter of 30mm and a wall thickness of 5mm. Second cold rolling to 13mm outer diameter, 2mm wall thickness, straightening, face milling, pickling.

[0084] Aluminum alloy ingots with a diameter of 70 mm are hot-extruded into rods with a diameter of 10 mm, straightened and cleaned.

[0085] The copper alloy tube and the aluminum alloy rod are combined and cold-drawn to a diameter of 5mm in 12 passes, and the composite wire is drawn to a diameter of 0.404mm in 48 passes after one heat treatment, and finally the composite wire is made into a finished product after a second heat treatment .

[0086] The specific process parameters are as follows:

[0087] (1) Copper alloy tube extrusion process: extrusion temperature ...

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Abstract

The invention relates to a copper alloy and aluminum alloy composite wire and a preparation processing method thereof and belongs to the field of non-ferrous metal material plastic processing and heat treatment. The composite wire is of a copper clad aluminum concentric bimetallic composite structure, the outer layer is copper alloy, the core is aluminum alloy, and the copper alloy accounts for 20%-40% of the volume fraction of the composite wire. A copper alloy pipe blank and an aluminum alloy rod blank are prepared through a hot extrusion method, the copper alloy pipe blank is subjected to cold rolling, solid solution heat treatment and cold rolling once more to be made into a composite blank outer layer, the composite blank outer layer and an aluminum alloy rod core form a composite blank, and the composite blank is subjected to cold rolling (cold drawing), primary heat treatment, cold drawing once more and secondary heat treatment to be made into a finished product. The copper alloy and aluminum alloy composite wire prepared through the method has the characteristics that the strength is high, the mass is light, the good conductive capability is maintained, and meanwhile the certain elasticity is further achieved.

Description

technical field [0001] The invention relates to a copper alloy and aluminum alloy composite wire and a preparation and processing method thereof, belonging to the technical field of plastic processing and heat treatment of nonferrous metal materials. Background technique [0002] In recent years, my country's wire and cable market has developed rapidly, and the total size of the wire and cable industry has also ranked first in the world. However, as the global wire and cable market matures, the overall development of the wire and cable manufacturing industry slows down. Although there are currently thousands of wire and cable manufacturers in my country, they are mainly concentrated in the low-end field to compete for the market with low prices, while the high-end wire and cable field with large profit margins is in its infancy. With the entry of multinational wire and cable giants, the low-price competition in China's cable industry will face a severe test. Therefore, the...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C9/06C22F1/08C22F1/047B21C37/04
Inventor 解浩峰米绪军彭丽军尹向前李艳锋高宝东冯雪黄国杰杨振
Owner GRIMAT ENG INST CO LTD
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