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Electrophoretic coating insulation method for high temperature superconducting strip

A technology of high-temperature superconducting strip and electrophoretic coating, applied in the direction of conductor/cable insulation, etc., can solve problems such as weak bonding force and poor coating effect, achieve high utilization rate, excellent environmental protection performance, improve adhesion and Effect of uniformity of film formation

Inactive Publication Date: 2017-06-30
中国东方电气集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the paint effect on the side surface of the multilayer structure of the second-generation high-temperature superconducting tape is also poor; at the same time, there is only physical fusion between the electrical insulating paint directly coated on the surface of the high-temperature superconducting conductor and the metal on the conductor surface , its binding force is weak

Method used

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  • Electrophoretic coating insulation method for high temperature superconducting strip
  • Electrophoretic coating insulation method for high temperature superconducting strip
  • Electrophoretic coating insulation method for high temperature superconducting strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An electrophoretic paint insulation method for a high-temperature superconducting strip, comprising the following steps:

[0042] a. Degreasing, derusting and phosphating treatment are carried out on the surface of the high temperature superconducting strip 12;

[0043] b. Carrying out electrophoretic coating on the treated high-temperature superconducting strip 12 refers to connecting the high-temperature superconducting strip 12 treated in step a to the external electrode 8 of the electrophoresis tank and then immersing it in the electrophoresis tank filled with electrophoretic paint solution In 10, the electrode 9 in the electrophoretic tank immersed in the electrophoretic paint solution is connected to the DC power supply 11 to form a closed electrophoretic circuit, and the DC power supply 11 is energized, and the electrophoretic paint is electrochemically deposited on the surface of the high temperature superconducting strip 12 to form an insulating paint film;

[...

Embodiment 2

[0053] An electrophoretic paint insulation method for a high-temperature superconducting strip, comprising the following steps:

[0054] a. Degreasing, derusting and phosphating treatment are carried out on the surface of the high temperature superconducting strip 12;

[0055] b. Carrying out electrophoretic coating on the treated high-temperature superconducting strip 12 refers to connecting the high-temperature superconducting strip 12 treated in step a to the external electrode 8 of the electrophoresis tank and then immersing it in the electrophoresis tank filled with electrophoretic paint solution In 10, the electrode 9 in the electrophoretic tank immersed in the electrophoretic paint solution is connected to the DC power supply 11 to form a closed electrophoretic circuit, and the DC power supply 11 is energized, and the electrophoretic paint is electrochemically deposited on the surface of the high temperature superconducting strip 12 to form an insulating paint film;

[...

Embodiment 3

[0066] An electrophoretic paint insulation method for a high-temperature superconducting strip, comprising the following steps:

[0067] a. Degreasing, derusting and phosphating treatment are carried out on the surface of the high temperature superconducting strip 12;

[0068] b. Carrying out electrophoretic coating on the treated high-temperature superconducting strip 12 refers to connecting the high-temperature superconducting strip 12 treated in step a to the external electrode 8 of the electrophoresis tank and then immersing it in the electrophoresis tank filled with electrophoretic paint solution In 10, the electrode 9 in the electrophoretic tank immersed in the electrophoretic paint solution is connected to the DC power supply 11 to form a closed electrophoretic circuit, and the DC power supply 11 is energized, and the electrophoretic paint is electrochemically deposited on the surface of the high temperature superconducting strip 12 to form an insulating paint film;

[...

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Abstract

The invention discloses an electrophoretic coating insulation method for a high temperature superconducting strip, which belongs to the technical field of high temperature superconducting materials. The method comprises the steps that a degreasing, descaling and phosphating are carried out on the surface of the high temperature superconducting strip; b the processed high temperature superconducting strip is connected with an electrophoretic tank external electrode and is immersed in an electrophoretic tank containing an electrophoretic paint solution, and an electrophoretic tank internal electrode immersed in the electrophoretic paint solution is connected with a direct current power supply to form a closed electrophoretic circuit, and after the direct current power supply is electrified, electrophoretic paint electrochemically deposited on the surface of the high temperature superconducting strip to form an insulating paint film; c cleaning is carried out; and d the high temperature superconducting strip is blown and cleaned by compressed air, and is dried. According to the invention, the irregular structure of the side surface of the multi-layer structure of the second-generation high temperature superconducting strip can be coated; the thickness and the uniformity of the insulating paint film are easily controlled; continuous electrophoretic coating can be carried out on the long strip in a roll-to-roll manner; and the coated strip has good insulation and mechanical properties.

Description

technical field [0001] The invention relates to the technical field of high-temperature superconducting materials, in particular to an electrophoretic coating insulation method for high-temperature superconducting strips. Background technique [0002] Due to the characteristics of zero resistance and high current density, superconducting materials have unique technical advantages for strong magnetic field applications and lossless current transmission. In particular, the current second-generation high-temperature superconducting coated conductor represented by yttrium barium copper oxide has a critical temperature higher than the liquid nitrogen temperature range and lower refrigeration costs. With the rapid development and maturity of its practical strip preparation technology, it will Further expand the application field of superconductivity. [0003] The current second-generation high-temperature superconducting tape manufacturers usually provide users with bare tapes th...

Claims

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Application Information

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IPC IPC(8): H01B13/16
CPCH01B13/16
Inventor 蒋煜东张涵杨烨白亮
Owner 中国东方电气集团有限公司