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Welding method and product of superconducting tape in superconducting cable accessories

A technology for superconducting cables and welding methods, applied in welding equipment, welding/welding connections, conductors, etc., can solve problems such as unsafety and difficult quality assurance, and achieve the effect of meeting electrical conductivity requirements and good low temperature performance

Active Publication Date: 2016-05-11
上海三原电缆附件有限公司
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Problems solved by technology

[0010] There are many problems in this patented method, such as: two bindings are required, and the second binding operation is carried out at 155°C, which is not safe
In addition, we have to weld two layers of superconducting tapes with opposite wrapping angles. According to the method, the quality is difficult to guarantee.

Method used

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  • Welding method and product of superconducting tape in superconducting cable accessories

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Embodiment Construction

[0023] According to accompanying drawing, the welding method and product thereof of superconducting tape in a kind of superconducting cable accessory of the present invention, its welding method technological process is as follows:

[0024] (1) Treatment of the welding surface: including the surface treatment of the cable head of the circular copper conductor 1 and the superconducting tape, smoothing, cleaning and descaling of the welding surface, and coating with flux. The flux is commercially available, and you can choose Jinji brand solder paste produced by Shanghai Jinji Solder Paste Factory or other brands of flux.

[0025] (2) Binding and fixing: The welding surface of the circular copper conductor is flat and close to the first layer of low-temperature welding film, and the cover is flat and close, and the first layer of superconducting tape of the cable is evenly arranged on the welding surface of the circular copper conductor First, tie the first layer of superconduct...

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Abstract

The invention relates to a welding method for superconducting tapes in superconducting cable accessories and a product of the method. The welding method includes technological processes of (1) treating welding surfaces, (2) binding and fixing, (3) welding and heating, and (4) stopping heating and finishing welding. Low-temperature welding is realized, multiple high-temperature superconducting tapes can be effectively welded on a circular copper conductor through the welding method, and conductance requirements of welding are met.

Description

technical field [0001] The invention relates to a welding method, and in particular discloses a method for welding multiple high-temperature superconducting tapes and circular copper conductors, which is suitable for connecting superconducting tapes and circular copper conductors in high-temperature superconducting cables and terminal installations , through the method of the invention, a plurality of high-temperature superconducting strips can be effectively welded on the circular copper conductor, and the electric conductance requirement of welding can be met. Background technique [0002] Ordinary brazing method can be used to weld a single superconducting tape to a circular copper conductor, but it cannot weld one or two layers of superconducting tapes arranged in rotation (two layers in different directions) to a circular copper conductor. [0003] The welding method and special device (CN01134549.7) of the patented high-temperature superconducting power cable joint dec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23K1/20B23K33/00H01R4/68H01R4/02
CPCB23K1/0016B23K1/20B23K1/203B23K2101/38
Inventor 潘维荣徐操闻飞王福生蔡春雨
Owner 上海三原电缆附件有限公司
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