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Processing method of copper-aluminum composite special-shaped parallel groove clamp

A technology of copper-aluminum composite and processing method, which is applied in the field of line fittings, can solve the problems of unguaranteed product safety, lack of copper-aluminum bonding strength, and low heat generation, so as to improve production efficiency and yield rate, shorten production time, Good electrical performance

Inactive Publication Date: 2017-01-11
江苏苏源电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The special-shaped parallel groove clamp is a kind of line fittings, which are widely used in the non-load-bearing connection and branch of the wires in the overhead power lines. It is used together with the insulating cover to play a protective and insulating role. The existing products are made of aluminum alloy and copper-aluminum materials. Combined pressing is the main method, and the products made of copper-aluminum materials by grinding welding or explosive welding have better electrical properties, low impedance, and low heat generation. However, in actual production, the bonding strength of copper and aluminum is somewhat different. Insufficient, for example, the products made by frosted welding are easy to cause problems such as false welding, so that the safety of the product cannot be guaranteed, and the copper-aluminum bonding strength of the production method of explosive welding is only about 50Mpa at the highest

Method used

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Embodiment approach

[0016] One embodiment of the present invention is as follows:

[0017] S1. Inject semi-solid aluminum or aluminum alloy into the strip mold and solid copper strip for anaerobic continuous casting and rolling, and form two types of copper-aluminum composite strips according to the area ratio of the copper-aluminum composite surface, which are used respectively Manufacture the wire carrier board and the wire pressure board of the special-shaped grooved wire clip.

[0018] S2. Cut the copper-aluminum composite strip processed in the step S1 into blocks, and grind the edges of the cut surface to form a blank.

[0019] S3. Die and drill the blank obtained in the step S2 to form a carrier board and a wire crimping board.

[0020] S4. Connect the carrier board and the wire crimping board in the step S4 with fasteners to form a final product.

[0021] More specifically, the copper-aluminum composite strips of two specifications in the step S1 have a copper-aluminum area ratio of 1:1...

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Abstract

The invention discloses a processing method of a copper-aluminum composite special-shaped parallel groove clamp. According to the method, copper is continuously casted on semi-solid aluminum or aluminum alloy in an oxygen-free manner according to different proportions, and then cutting, die punching, pressing and shaping are carried out, so that the copper-aluminum composite special-shaped parallel groove clam can be formed. The copper-aluminum composite special-shaped parallel groove clamp formed by using the processing method of the invention has the advantages of no need for welding, high copper-aluminum combination strength, low resistance, little heat emission and the like. Compared with existing methods according to which a copper-aluminum combination process such as polishing welding and explosive welding is adopted to produce a special-shaped parallel groove clamp, the processing method of the invention has obvious advantages.

Description

technical field [0001] The invention relates to the field of circuit fittings, in particular to a processing method for a special-shaped parallel-groove wire clip that does not need to be welded and is directly pressed and formed. Background technique [0002] The special-shaped parallel groove clamp is a kind of line fittings, which are widely used in the non-load-bearing connection and branch of the wires in the overhead power lines. It is used together with the insulating cover to play the role of protection and insulation. The existing products are made of aluminum alloy and copper-aluminum materials. Combined pressing is the main method, and the products made of copper-aluminum materials through grinding welding or explosive welding have better electrical properties, low impedance, and low heat generation. However, in actual production, the bonding strength of copper and aluminum is somewhat different. Insufficient, for example, the products made by frost welding are ea...

Claims

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Application Information

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IPC IPC(8): H01R43/16
Inventor 李月刚
Owner 江苏苏源电气有限公司
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