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Copper product for magnetic pole coil and production method thereof

A technology for magnetic pole coils and production methods, applied in the direction of conductive materials, conductive materials, winding conductive materials, etc., can solve the problems of insufficient welding performance and high temperature performance, and achieve the effects of good welding performance, energy saving, and high conductivity

Inactive Publication Date: 2017-11-24
浙江力博实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pure copper has good electrical conductivity, but its welding performance and high-temperature performance are slightly insufficient for high-copper alloys, that is, ensuring the conductivity of copper profiles and improving the welding performance and high-temperature performance of copper profiles are the key to satisfying the application of high-end magnetic pole coils

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Present embodiment 1 a kind of copper material for magnetic pole coil and production method thereof comprises the following steps:

[0026] Upward continuous casting—continuous extrusion—drawing—straightening—slitting

[0027] The specific steps are:

[0028] (1) Upward continuous casting

[0029] Using high-purity cathode copper as raw material, the high-purity cathode copper is preheated and dried and melted in the smelting device. The surface of the copper liquid is covered with charcoal and graphite flakes, and the copper rod is drawn up by the traction unit, and then the copper rod enters the take-up line. device.

[0030] The further setting is: the crystallizer outlet water temperature is controlled at 35°C, the melting furnace temperature is 1166°C, covered with dried charcoal to ensure the reducing atmosphere of the melting furnace; the charcoal particle size is 30mm, and the covering thickness is 150mm. The temperature of the holding furnace is 1165°C, and ...

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PUM

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Abstract

The invention relates to a copper product for a magnetic pole coil and a production method thereof. The production method comprises the following steps: (1) high-purity cathode copper with a copper content of higher than 99.996%, pure silver, a copper phosphorus intermediate alloy, a copper magnesium intermediate alloy and a copper chromium intermediate alloy are used as raw materials; the raw materials are preheated for drying to melt in a smelting device; and a traction unit upwards leads a copper rod; (2) a continuous extrusion unit prepares a blank of the copper product for the magnetic pole coil; (3) the drawing is performed; (4) the straightening is performed; and (5) the slitting is performed. The copper product for the magnetic pole coil is high in electric conductivity, excellent in high-temperature performance, excellent in welding performance and high in surface quality; and the method is short in process flow, high in efficiency and energy-saved.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal processing, in particular to a copper material for magnetic pole coils and a production method thereof. Background technique [0002] Magnetic pole coils are used in hydroelectric generators, and the magnetic pole coils are mostly wound with copper profiles to facilitate heat dissipation. The cross-section of the copper profiles is designed with heat dissipation ribs, which provides a larger heat dissipation surface for the magnetic poles. The copper material of special specifications mainly considers that the end of the coil should reserve space for inter-pole connection, and the cross-sectional area of ​​the copper bars at all inter-pole connection parts is not less than the cross-sectional area of ​​the winding copper material. Due to the particularity of the application of the magnetic pole coil to the hydroelectric generator, there are high requirements for the electrical conductivit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21F1/02C22C9/00H01B1/02H02K3/02
CPCB21C37/045B21F1/026C22C9/00H01B1/026H02K3/02
Inventor 徐高磊
Owner 浙江力博实业股份有限公司