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Cable terminal and preparation method thereof

A cable terminal and terminal technology, which is applied in the direction of cable terminals, circuits, conductive connections, etc., can solve the problems of oxide generation, temperature rise, and increased contact resistance, so as to improve environmental adaptability, improve connection safety, and avoid contact The effect of resistance

Inactive Publication Date: 2017-08-25
张家口新叶电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing power terminal connection, there are some deficiencies: (1) During the service process of the wire and cable, because the heat generated by the conductor cannot be dissipated in time, creep occurs between the metal conductor and the connector, resulting in contact resistance, and contact resistance The production of will further cause the temperature to rise and produce oxides, forming a vicious circle
(2) The external environment causes corrosion of the cable terminal, water vapor and other factors will enter the cable terminal, causing corrosion of the metal conductor in the connection terminal, further producing metal oxides, and increasing contact resistance

Method used

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  • Cable terminal and preparation method thereof
  • Cable terminal and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preparation of terminal indenter

[0028] The terminal pressure head is made by forging T2 copper with a purity of 99.9%.

[0029] 2. Preparation of cable connection pipe

[0030] Percentage by weight: Fe 0.52%, Cu 0.16%, Ni 0.05%, Mg 2.2%, Si 0.08%, Mn 0.15%, Sc 0.002%, and the rest is aluminum for batching;

[0031] Put the industrial pure aluminum ingot with 99.7% purity into an intermediate frequency induction furnace to melt, then add the intermediate alloy of each element according to the composition ratio, keep it at 770°C, stir to remove impurities, refine, degas, and remove slag to obtain aluminum alloy melt Body, and then control the temperature at 770 ° C for 30 minutes;

[0032] Control the temperature at 810°C, add particles with a diameter of 15 μm, and a mass ratio of 1:3 (SiC and Al 2 o 3 The mass ratio of SiC and Al obtained by mixing 2 o 3 The tackifier is added in an amount of 1.5wt% of the aluminum alloy melt. Add particle diameter of 30μm,...

Embodiment 2

[0041] 1. Preparation of terminal indenter

[0042] The terminal pressure head is made by forging T2 copper with a purity of 99.9%.

[0043] 2. Preparation of cable connection pipe

[0044] By weight percentage: Fe 0.58%, Cu 0.21%, Ni 0.06%, Mg 2.5%, Si 0.09%, Mn 0.16%, Sc 0.003%, and the rest is aluminum for batching;

[0045] Put the industrial pure aluminum ingot with 99.7% purity into an intermediate frequency induction furnace to melt, then add the master alloy of each element according to the composition ratio, keep it at 760°C, stir to remove impurities, refine, degas, and remove slag to obtain aluminum alloy melt Body, and then control the temperature at 760 ° C for 30 minutes;

[0046] Control the temperature at 810°C, add particles with a diameter of 18 μm, and a mass ratio of 1:3 (SiC and Al 2 o 3 The mass ratio of SiC, Al obtained by mixing 2 o 3 The tackifier is added in an amount of 1.8wt% of the aluminum alloy melt. The added particle diameter is 35 μm, and...

Embodiment 3

[0055] 1. Preparation of terminal indenter

[0056] The terminal pressure head is made by forging T2 copper with a purity of 99.9%.

[0057] 2. Preparation of cable connection pipe

[0058] Percentage by weight: Fe 0.65%, Cu 0.25%, Ni 0.08%, Mg 3.5%, Si 0.08%, Mn0.18%, Sc 0.003%, and the rest is aluminum for batching;

[0059] Put the industrial pure aluminum ingot with 99.7% purity into the medium-frequency induction furnace to melt, then add the master alloy of each element according to the composition ratio, keep it at 800°C, stir to remove impurities, refine, degas, and remove slag to obtain aluminum alloy melt Body, and then control the temperature at 800 ° C for 30 minutes;

[0060] Control the temperature at 810°C, add particles with a diameter of 18 μm, and a mass ratio of 1:3 (SiC and Al 2 o 3 The mass ratio of SiC, Al obtained by mixing 2 o 3 The tackifier is added in an amount of 2.0wt% of the aluminum alloy melt. ; The diameter of the added particles is 35 μ...

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Abstract

The invention relates to the field of power transmission and distribution line equipment, and provides a cable terminal and a preparation method thereof. The cable terminal includes a terminal connection pressure head, a cable connection pipe and a terminal sheath, the terminal connection pressure head and one end of the cable connection pipe are welded together, the terminal sheath is covered on the outside of the cable connection pipe, and the cable connection pipe is Contains the following elements: Fe 0.52%‑0.65%, Cu 0.16%‑0.25%, Ni 0.05%‑0.08%, Mg 2.2%‑3.5%, Si 0.07%‑0.15%, Mn 0.15%‑0.18%, Sc 0.002%‑ 0.005%, the rest is aluminum. By adopting the cable terminal provided by the embodiment of the present invention, the heat dissipation efficiency of the connecting part of the cable terminal can be improved, contact resistance can be avoided, the environmental adaptability of the cable terminal can be improved, and the safety of transmission line connection can be improved.

Description

technical field [0001] The invention relates to the field of power transmission and distribution line equipment, and more specifically, to a cable terminal and a preparation method thereof. Background technique [0002] Wire and cable connectors are an important part of power transmission lines. Among them, cable terminals are the most widely used, and their safety performance largely determines the safety of power terminal transmission. In the existing power terminal connection, there are some deficiencies: (1) During the service process of the wire and cable, because the heat generated by the conductor cannot be dissipated in time, creep occurs between the metal conductor and the connector, resulting in contact resistance, and contact resistance The generation of will further cause the temperature to rise and produce oxides, forming a vicious circle. (2) The external environment causes corrosion of the cable terminal, and factors such as water vapor will enter the cable t...

Claims

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Application Information

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IPC IPC(8): H01R11/12H01R4/02H01R4/60H01R4/62H01R4/70H01R43/02H01R43/16C22C21/08H02G15/02
CPCH01R11/12C22C21/08H01R4/029H01R4/60H01R4/625H01R4/70H01R43/02H01R43/16H02G15/02
Inventor 吴振江於国良沈刚
Owner 张家口新叶电缆有限公司
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