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A kind of contact wire and its preparation method and application

A contact line and horizontal line technology, applied in overhead lines, cable/conductor manufacturing, used to reduce the size of conductors/cables, etc., can solve problems such as time-consuming, poor contact line surface quality, and no longer satisfying production efficiency , to achieve the effect of reducing labor intensity and improving production efficiency

Active Publication Date: 2021-06-22
西安西电光电缆有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to constantly replace the drawing die and process parameters during production, which not only greatly increases the complexity of the process, but also causes poor surface quality of the contact line due to assembly errors, die replacement, etc.; every time the drawing die is replaced and the process parameters are adjusted It takes a lot of time, and adjusting the parameters will cause the product size to deviate, which greatly reduces the production efficiency and the stability of the production process.
[0003] The existing drawing process no longer meets the production efficiency. In order to improve the production efficiency and the stability of the production process, it is urgent to provide a new copper and copper alloy contact wire drawing process, so that the production efficiency can be improved and the production stability can be improved. promote

Method used

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  • A kind of contact wire and its preparation method and application
  • A kind of contact wire and its preparation method and application
  • A kind of contact wire and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a 120mm 2 The preparation method of copper-silver contact wire (CTA120) specifically comprises the steps:

[0041] Four-pass special-shaped molds (the dimensions of the special-shaped molds are shown in Table 1 below) are used for drawing, and the molds are loaded into the four-mode giant drawing machine in order from large to small, and then the copper-silver alloy extrusion rods are sequentially passed through from large to small. A small special-shaped mold is obtained by drawing.

[0042] Table 1:

[0043]

[0044] The deformation of each pass mold is 20%-25%, 27%-33%, 27%-32% and 23%-27%.

[0045] Specifically:

[0046] use Copper-silver alloy extruded rods, after the first After the mold is drawn, it becomes special-shaped pull rod, and then through the second After the mold is drawn, it becomes pull rod, then pass through the third After the mold is drawn, it becomes The pull rod, and finally through the finished produ...

Embodiment 2

[0048] This embodiment provides a 150mm 2 The preparation method of copper-silver contact wire (CTA150), specifically comprises the steps:

[0049] Four-pass special-shaped molds (the dimensions of the special-shaped molds are shown in Table 2 below) are used for drawing, and the molds are loaded into the four-mode giant drawing machine in order from large to small, and then the copper-silver alloy extrusion rods are passed through in order from large to small. A small special-shaped mold is obtained by drawing.

[0050] Table 2:

[0051]

[0052] The deformation of each pass mold is 20%-25%, 27%-33%, 27%-32% and 23%-27%.

[0053] Specifically:

[0054] use Copper-silver alloy extruded rods, after the first After the mold is drawn, it becomes special-shaped pull rod, and then through the second After the mold is drawn, it becomes pull rod, then pass through the third After the mold is drawn, it becomes The pull rod, and finally through the finished product ...

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Abstract

The invention provides a contact wire and its preparation method and application. The preparation method of the contact line includes: drawing the extruded rod by using four-pass special-shaped molds: loading the extruded rods into the four-mode giant drawing machine according to the order of the molds from large to small, and then passing the extruded rods through the The contact line is obtained by drawing the special-shaped mold; the deformation of each pass mold is 20%-25%, 27%-33%, 27%-32% and 23%-27%; the first three pass special-shaped molds are For fixed-size molds, the special-shaped molds of the fourth pass are finished molds. The invention can realize continuous production, simplifies the procedures of mold replacement, rolling head, and mold insertion, greatly improves production efficiency, and reduces labor intensity; and the size of the special-shaped mold can meet the requirements of copper-silver, copper-magnesium, and copper-tin contact lines. Drawing deformation.

Description

technical field [0001] The invention belongs to the technical field of contact wires and relates to a contact wire and its preparation method and application, in particular to a copper and / or copper alloy contact wire and its preparation method and application. Background technique [0002] Copper and copper alloy contact wires for electrified railways are an important part of electrified railway traction systems. The existing contact wires are mainly divided into pure copper contact wires, copper-silver alloy contact wires, copper-tin alloy contact wires, copper-magnesium alloy contact wires and copper Chromium-zirconium alloy contact wire. The final process of copper and copper alloy contact wire processing and production is cold drawing process. In production, copper and copper alloy contact wires of different material specifications have specific drawing processes. Therefore, it is necessary to constantly replace the drawing die and process parameters during production...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/02B60M1/13
CPCB60M1/13H01B1/02H01B1/026H01B13/0006
Inventor 张恒飞薛恒沈崇虎南文耀张超郭星锐
Owner 西安西电光电缆有限责任公司
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