Brazing procedure of aluminium electric-magnetic wires and Guinea gold

A technology of aluminum magnet wire and brazing method, applied in the direction of welding medium, electrolytic process, electrolytic components, etc., can solve the problems of low tensile strength, difficult bending and forming, unfavorable winding of transformer coils, etc., and achieve good high temperature resistance , good effect of temperature change resistance
CN101015875AActive Publication Date: 2007-08-15顺特电气设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
顺特电气设备有限公司
Publication Date
2007-08-15

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Abstract

A method for solder welding aluminum electromagnetic wire and brass comprises aluminum electromagnetic wire and brass connector. The invention comprises that first plating nickel on the surface of brass connector to improve the connecting strength between the solder and the brass connector and the corrosion resistance of aluminum copper connector, while said nickel layer can insulate aluminum atom and copper atom to avoid them to form rigid metal compound layer which will reduce the strength of connector, then using drug Al-Si rigid solder as non-corrosion aluminium fluoride potassium, using flame welding to weld the aluminum electromagnetic wire and the nickel layer of brass connector, the brass connector is treated with neutral oil removing, ultrasonic oil removing, water washing, acid washing, water washing, activating, waster washing, nickel plating, and drying. The inventive aluminum electromagnetic wire and brass connector have same anti-drawing strength, while the resistance of aluminum copper connector is less than the aluminum electromagnetic wire.
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Description

Technical field

[0001] The invention relates to a brazing method of aluminum magnet wire and brass, in particular to a brazing method of aluminum magnet wire and brass connecting piece of aluminum conductor power transformer coil. Background technique

[0002] In recent years, with the continuous development of the installed capacity of the power system, the demand for power transmission and transformation equipment has also increased rapidly. The supply of raw materials for power transmission and transformation equipment has gradually exceeded demand. However, the price of copper, the main raw material used in the transformer industry, has been Rising, in order to find a better way for enterprises to develop and strengthen their competitiveness, many companies in the transformer industry are actively responding to the unfavorable factors of rising copper prices and developing a supplementary product-transformers with aluminum conductors to meet some market needs.

[0003] The co...

Claims

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