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Wire splicing fitting, preparation method and wire splicing method

A technology for connecting hardware and wires, which is applied in the direction of conductive connection, connection and connection by deformation, etc., which can solve the problems of poor wire connection quality, and achieve the effect of good grip, good conductivity and convenient connection.

Active Publication Date: 2019-11-12
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the technical problem of the poor connection quality of the existing connecting fittings to the wires, provide a wire connecting fitting, a preparation method and a wire connecting method

Method used

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  • Wire splicing fitting, preparation method and wire splicing method

Examples

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Effect test

Embodiment 1

[0038] This embodiment provides a wire connecting fitting, such as figure 1 As shown, it includes an inner layer shape memory alloy tube 4 and a conductive outer layer shape memory alloy tube 1, the outer layer shape memory alloy tube 1 is longer than the inner layer shape memory alloy tube 4, and the outer layer shape memory alloy tube 1 The inner wall of the middle part is provided with a plurality of hollow annular radial positioning plates 2 along its circumferential direction (there are three radial positioning plates 2 in this embodiment, and can also be two, four or more than four). The hollow parts of the plurality of radial positioning plates 2 form a hollow pipe for accommodating the inner layer shape memory alloy tube 4, and the outer wall of the end of the inner layer shape memory alloy tube 4 is provided with a semi-circular axial positioning plate 3 along its circumferential direction , the axial positioning plate 3 is in contact with the outer end surface of the...

Embodiment 2

[0050] This embodiment provides a method for preparing an outer shape alloy memory tube and an inner shape alloy memory tube:

[0051] The preparation of the outer shape alloy memory tube: Add 4 parts by weight of aluminum block, 5 parts by weight of nickel block, 0.5 part by weight of titanium block, 3 parts by weight of manganese block and 87.5 parts by weight of copper block into the melting furnace and heat to 1500 ° C for 30 minutes, then add 0.2 parts by weight of Na in the smelting furnace with a mass ratio of 30:70 3 AlF 6 Mix with NaCl and continue smelting at 1500°C to melt all the materials in the melting furnace to obtain a copper alloy melt; pour the copper alloy melt into a mold for casting to make a semi-finished outer shape memory alloy tube; put the outer layer The semi-finished shape memory alloy tube is quenched at a temperature of 700°C, the holding time is 5h, the transfer time is <30s, and the temperature of the cooling liquid is <35°C, and then it is te...

Embodiment 3

[0054] This embodiment provides a method for preparing an outer shape alloy memory tube and an inner shape alloy memory tube:

[0055] Preparation of outer layer shape alloy memory tube: 15 parts by weight of aluminum block, 1 part by weight of nickel block, 3 parts by weight of titanium block, 1 part by weight of manganese block and 80 parts by weight of copper block are added to the melting furnace and heated to 1700 ° C for 15 minutes, then add 0.4 parts by weight of Na in the smelting furnace with a mass ratio of 40:60 3 AlF 6 Mix with NaCl, continue smelting at 1700°C to melt all the materials in the melting furnace to obtain a copper alloy melt; pour the copper alloy melt into a mold for casting to make a semi-finished outer shape memory alloy tube; put the outer layer The semi-finished shape memory alloy tube is quenched at a temperature of 780°C, the holding time is 2h, the transfer time is <30s, and the temperature of the cooling liquid is <35°C, and then it is tempe...

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Abstract

The invention relates to a wire connecting fitting, a preparation method and a wire connecting method. The wire connecting fitting comprises an inner-layer shape memory alloy tube and a conducting outer-layer shape memory alloy tube, wherein a plurality of hollow ring-shaped radial positioning plates are arranged on the inner wall of the middle of the outer-layer shape memory alloy pipe; a hollowpipeline used for accommodating the inner-layer shape memory alloy tube is formed at the hollow parts of the radial positioning plates; an axial positioning plate is arranged on the outer wall of oneend part of the inner-layer shape memory alloy tube and in contact connection with the outer end surface of the radial positioning plate positioned at the outmost end of the outer-layer shape memory alloy tube; the inner-layer shape memory alloy tube is in contact connection with the radial positioning plates; and after two end parts of the outer-layer shape memory alloy tube and the inner-layer shape memory alloy tube are heated, the inner diameters of the outer-layer shape memory alloy tube and the inner-layer shape memory alloy tube are shrunk. During the use of the wire connecting fitting,wires are guided into the wire connecting fitting from tube orifices at two ends of the inner-layer shape memory alloy tube; the inner-layer shape memory alloy tube is heated so as to tightly hold inner-layer bearing cores of the wires; the outer-layer shape memory alloy tube is heated so as to tightly hold outer-layer conducting layers of the wires; and the wire connecting quality is high.

Description

technical field [0001] The invention relates to a wire splicing hardware, a preparation method and a wire splicing method, belonging to the technical field of wire splicing hardware for transmission lines. Background technique [0002] The continuous growth of power demand and the uneven distribution of energy have driven the rapid development of long-distance and cross-regional power transmission. However, due to the limitation of the length of the wires, splicing fittings are required to realize the connection between the wires in order to complete uninterrupted power transmission. At present, there are two types of wire splices commonly used, one is a hydraulic type splicing tube, and the other is a pre-twisted full tension splicing strip. [0003] The construction process of the hydraulic splicing pipe involves 8 processes, including crimping machine selection, mold matching, cleaning, brushing electric grease, cutting, pipe threading, crimping, and quality inspection. E...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/38C22C38/34C22C33/04C22C9/06C22C9/01C22C1/02C21D9/08C22F1/08H01R4/01H01R11/01H01R11/09H01R43/00H01R43/04
CPCC21D9/08C22C1/02C22C9/01C22C9/06C22C33/04C22C38/005C22C38/34C22C38/38C22F1/002C22F1/08H01R4/01H01R11/01H01R11/09H01R43/00H01R43/04
Inventor 叶中飞伍川姚德贵吕中宾卢明李清杨晓辉陶亚光张博谢凯马伦任鹏亮宋高丽李梦丽
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST