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A kind of production method of copper-aluminum conductor

A production method and conductor technology, applied in the electrical field, can solve the problems of poor electrical conductivity of conductors, affect electrical conductivity, and insufficient bonding, and achieve the effects of reducing direct contact between copper and aluminum, improving electrical conductivity, and reducing resistivity.

Active Publication Date: 2018-01-16
YUEQING JINGU FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In theory, it can achieve a better conductive effect, but the combination of copper and aluminum is usually welded or directly poured molten aluminum on the copper, but the conductive effect of the conductor formed by pouring is generally not very good, the main reason is that During the pouring process, the bonding between copper and aluminum is not good enough, and there are often air bubbles in the middle, which affects the final electrical conductivity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Flux: use rosin.

[0042] Step 1: Cut the copper block to the required size;

[0043] Step 2: Coating the outer surface of the cut copper block with a silver layer;

[0044] Step 3: Spread flux evenly on the silver-plated copper block;

[0045] Step 4: Fix the above-mentioned copper block coated with flux on the mold, and then pour molten aluminum water into it.

Embodiment 2

[0047] The flux is commercially available aluminum brazing flux of newaura company model HJTT008.

[0048] Step 1: Cut the copper block to the required size;

[0049] Step 2: Coating the outer surface of the cut copper block with a silver layer;

[0050] Step 3: Spread flux evenly on the silver-plated copper block;

[0051] Step 4: Fix the above-mentioned copper block coated with flux on the mold, and then pour molten aluminum water into it.

Embodiment 3

[0053] The soldering flux is selected as the Afa soldering flux RF800T.

[0054] Step 1: Cut the copper block to the required size;

[0055] Step 2: Coating the outer surface of the cut copper block with a silver layer;

[0056] Step 3: Spread flux evenly on the silver-plated copper block;

[0057] Step 4: Fix the above-mentioned copper block coated with flux on the mold, and then pour molten aluminum water into it.

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PUM

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Abstract

The invention discloses a production method of a copper-aluminum conductor. The production method of the copper-aluminum conductor comprises the following steps: step I, cutting a copper billet to be in a required size; step II, plating the external surfaces of the cut copper billet with silver layers; step III, uniformly smearing the copper billet plated with the silver layers with scaling powder; step IV, fixing the copper billet smeared with the scaling powder on a mold, and afterwards, introducing fused liquid aluminum into the mold. On one hand, the intermetallic combination is enhanced, and on the other hand, the generation of bubbles in a pouring process is reduced, so that an electric conduction effect is guaranteed.

Description

technical field [0001] The invention relates to the electric field, and more specifically, it relates to a production method of a copper-aluminum conductor. Background technique [0002] In the process of conduction, it is well known that the lower the resistivity, the better the conduction effect of the substance. However, substances with lower resistivity tend to be more expensive. At present, the ideal conductive material is silver, but the cost is too high, so people choose copper, but with the progress of society, the requirements for cost control are getting higher and higher, and copper-aluminum combined conductors appear. [0003] At present, the Chinese patent with the application number CN201410579220.4 is a welding method for butt jointing or butt jointing and overlapping of copper and aluminum conductive bars. The end faces of copper bars (12) and aluminum bars (11) of the same cross-sectional size are coaxially aligned. Place it horizontally, place a transitio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16B23K35/362
CPCB22D19/0081B22D19/08B22D19/16B23K35/362
Inventor 郑晓宇
Owner YUEQING JINGU FITTINGS