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Transformer copper wire self welding process

A self-welding and transformer technology, applied in the field of transformer manufacturing, can solve the problems of high welding cost and easy cracking of solder joints, and achieve the effects of low cost, improved short-circuit resistance and less cracking

Inactive Publication Date: 2014-09-10
ANHUI WANHONG ELECTRICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The welding method of copper wires in traditional transformers is mainly through the use of phosphor copper electrodes for auxiliary welding, the solder joints are easy to crack, and the welding cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A transformer copper wire self-welding self-welding process, specifically comprising the following process steps,

[0022] 1) Prepare materials: take transformer copper wire or two copper bars, acetylene and oxygen, welding torch (take flat copper wire as an example);

[0023] 2) Lap two peeled copper bars together, the length of the overlapping parts is 2-5cm, and press and fix them on both sides of the copper bars to ensure the contact of the overlapping parts and prevent displacement during the welding process;

[0024] 3) Open the valve of the welding torch and ignite the welding torch, at this time black smoke will come out from the welding torch;

[0025] 4) Turn the oxygen regulating valve to make the flame on the tip of the welding torch evenly distributed, so that the temperature of the flame on the tip reaches 2900-3100°C;

[0026] 5) Use a welding torch to burn two copper bars that are in contact with each other and keep the distance between the copper bars ...

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PUM

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Abstract

The invention provides a transformer copper wire self welding process and relates to the technical field of transformer manufacturing. The transformer copper wire self welding process comprises the steps of taking two flat copper wires, acetylene, oxygen and a welding gun; enabling ends of the two flat copper wires to be subject to lap joint, enabling the length of the lap joint part to be 2-5 cm, and fixing two sides of the flat copper wires; opening a valve of the welding gun and igniting the welding gun; rotating an oxygen regulating valve, enabling flames on a welding gun welding nozzle to be evenly distributed, and enabling the temperature of the flames of the welding nozzle to be 2900-3100 DEG C; utilizing the welding gun to burn the two flat copper wires leaning against each other, enabling the copper wires to begin to melt at 1083.4 DEG C, evenly and rapidly moving the welding gun to enable the lap joint position of the flat copper wires to be evenly heated, enabling the copper wire lap joint part to be in a liquid state, and welding the upper copper wire and the lower copper wire to be a whole; viewing the two flat copper wires, partially heating the part not fused together, and performing finishing on the unsmooth part; shutting down the welding gun, and finishing the welding until welding spots are cooled. The welding process can reduce hardness of the welding spots, strength and flexibility of the welding spots are improved, and the welding spots are low in brittleness and do not crack easily.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing, in particular to a transformer copper wire self-welding and self-welding process. Background technique [0002] The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the iron core (magnetic core). The welding method of copper wires in traditional transformers is mainly through the use of phosphor copper electrodes for auxiliary welding. The solder joints are easy to crack and the welding cost is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a transformer copper wire self-welding and self-welding process that can improve the safety of solder joints and reduce the difficulty of subsequent processing of the transformer. [0004] The technical problem to be solved by the present invention adopts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/02H01F41/00
Inventor 催学保杜运德
Owner ANHUI WANHONG ELECTRICAL EQUIP
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