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A shell variable wire and its preparation method

A wire and conductor technology, used in cable/conductor manufacturing, conductors, conductive materials, etc., can solve the problems of shortening the service life of the wire, insufficient, and inability to stabilize the performance of the wire, and achieve the effect of good heat resistance and lower manufacturing costs.

Active Publication Date: 2017-12-08
无锡益联机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the wires used in shell-type transformers are shell-type wires. In the prior art, the production of such wires is to meet the requirements of the shell-type transformer by restricting their chamfers, but there are shortcomings in this method alone.
Such as: the heat-resistant temperature of the wire cannot be controlled, thereby reducing the service life of the wire; in addition, the change of the chamfer cannot stabilize the performance of the wire

Method used

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  • A shell variable wire and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A shell transformer wire is composed of the following components in proportion by weight: 42 parts of copper, 1 part of silver, 3 parts of silicon nitride, 2 parts of titanium dioxide, and 3 parts of zinc oxide.

[0024] A method for preparing a shell variable wire, comprising the following steps:

[0025] (1) Copper liquid preparation: melt the copper plate at a temperature of 1200°C, add silver, silicon nitride, titanium dioxide and zinc oxide to it, stir and mix well, and raise the boiler temperature to 2112°C;

[0026] (2) conductor production: the copper liquid that step (1) is made is placed in abrasive tool, mold is installed in the extrusion cavity, closes extrusion cavity, and extruder operating pressure is 19MPa, and total power is 207KW;

[0027] (3) conductor semi-hardening: the conductor obtained in step (2) is introduced between the rollers of the conductor semi-hardening bending tool, and the distance between the rollers is 60mm;

[0028] (4) Conductor p...

Embodiment 2

[0032] A shell transformer wire is composed of the following components in proportion by weight: 56 parts of copper, 3 parts of silver, 6 parts of silicon nitride, 5 parts of titanium dioxide, and 7 parts of zinc oxide.

[0033] A method for preparing a shell variable wire, comprising the following steps:

[0034] (1) Copper liquid preparation: melt the copper plate at a temperature of 1450°C, add silver, silicon nitride, titanium dioxide and zinc oxide to it, stir and mix well, and raise the boiler temperature to 2235°C;

[0035] (2) conductor production: the copper liquid that step (1) is made is placed in abrasive tool, mold is installed in the extrusion cavity, closes extrusion cavity, and extruder service pressure is 23MPa, and total power is 215KW;

[0036] (3) conductor semi-hardening: the conductor obtained in step (2) is introduced between the rollers of the conductor semi-hardening bending tool, and the distance between the rollers is 88mm;

[0037] (4) Conductor pa...

Embodiment 3

[0041] A shell transformer wire is composed of the following components in proportion by weight: 60 parts of copper, 4 parts of silver, 8 parts of silicon nitride, 8 parts of titanium dioxide, and 9 parts of zinc oxide.

[0042] A method for preparing a shell variable wire, comprising the following steps:

[0043] (1) Preparation of copper liquid: melt the copper plate at a temperature of 1600°C, add silver, silicon nitride, titanium dioxide and zinc oxide to it, stir and mix well, and raise the temperature of the boiler to 2285°C;

[0044] (2) conductor production: the copper liquid that step (1) is made is placed in abrasive tool, mold is installed in the extrusion cavity, closes extrusion cavity, and extruder operating pressure is 24MPa, and total power is 229KW;

[0045] (3) conductor semi-hardening: the conductor obtained in step (2) is introduced between the rollers of the conductor semi-hardening bending tool, and the distance between the rollers is 105mm;

[0046] (4)...

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Abstract

The invention discloses a shell-type transformer wire and a preparation method therefor. The wire contains the following components by weight: 42-60 parts of copper, 1-4 parts of silver, 3-8 parts of silicon nitride, 2-8 parts of titanium dioxide, and 3-9 parts of zinc oxide. Compared with the prior art, the wire is advantageous in that (1), the wire is good in heat-resistant quality; (2), the production method for the wire reduces the manufacture cost of a power transformer; (3), the wire can be suitable for a shell-type transformer.

Description

technical field [0001] The invention belongs to the field of transformer production, and relates to a production process of a wire in a transformer, in particular to a shell transformer wire and a preparation method thereof. Background technique [0002] A shell-type transformer consists of a core and a yoke composed of laminated stacks surrounding the windings, generally surrounding most of the windings. [0003] Shell-type transformers are processed by using bridge circuit multiplexing technology, multi-level technology or PWM technology to eliminate lower harmonics and limit higher harmonics within a certain range; since shell-type transformers do not Energy storage components are needed to achieve the purpose of exchanging reactive power with the system. In fact, it uses DC capacitors to maintain a stable DC power supply voltage. Compared with the AC capacitors used by SVC, the DC capacitors are relatively small and the cost is low; In addition, in When the system volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/02H01B7/29H01B13/00
CPCH01B1/026H01B7/29H01B13/00
Inventor 邱勤晓邱益诚王亚芳
Owner 无锡益联机械有限公司