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Environment-friendly CuCr contact surface treatment method

A surface treatment and environment-friendly technology, which is applied in the direction of cleaning methods and tools, surface polishing machine tools, chemical instruments and methods, etc., to achieve the effect of improving surface consistency, facilitating subsequent cleaning, and reducing the amount of oil on the product

Active Publication Date: 2021-08-10
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an environment-friendly CuCr contact surface treatment method, researches on the existing problems in the current CuCr contact surface treatment, and develops an environment-friendly CuCr contact surface treatment method

Method used

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  • Environment-friendly CuCr contact surface treatment method
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  • Environment-friendly CuCr contact surface treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of environmental protection type CuCr contact surface treatment method, comprises the following steps,

[0053] S1. At room temperature, put the CuCr contact into the cleaning solvent, so that the liquid level of the cleaning solvent is not over the top surface of the contact, ultrasonically clean and decontaminate twice for 30s-90s, remove the oil and impurities on the surface of the contact, and then put the CuCr contact The head is blown with dry compressed air for 120s-300s to air dry;

[0054] S2. Take the original solution of HK environmental protection cleaning agent, prepare a mass fraction of 2% HK environmental protection cleaning solution with deionized water, and clean the CuCr contact in the cleaning solution for 20s at 20°C;

[0055] The pH of the environmentally friendly cleaning solution in step S2 is 3.

[0056] S3. Ultrasonic water washing, the CuCr contact is ultrasonically washed with deionized water, and the ultrasonic water washing time is ...

Embodiment 2

[0068] A kind of environmental protection type CuCr contact surface treatment method, comprises the following steps,

[0069] S1. At room temperature, put the CuCr contact into the cleaning solvent, so that the liquid level of the cleaning solvent is not over the top surface of the contact, ultrasonically clean and decontaminate twice for 30s-90s, remove the oil and impurities on the surface of the contact, and then put the CuCr contact The head is blown with dry compressed air for 120s-300s to air dry;

[0070] The cleaning solvent in step S1 adopts MSC environmental protection oil cleaning agent, and the pH of the cleaning solvent is 6;

[0071] S2. Take the stock solution of HK environmental protection cleaning agent, prepare an HK environmental protection cleaning solution with a mass fraction of 6% with deionized water, and soak the CuCr contact in the cleaning solution for 40 seconds at 23°C;

[0072] The pH of the environmentally friendly cleaning solution in step S2 i...

Embodiment 3

[0088] A kind of environmental protection type CuCr contact surface treatment method, comprises the following steps,

[0089] S1. At room temperature, put the CuCr contact into the cleaning solvent, so that the liquid level of the cleaning solvent is not over the top surface of the contact, ultrasonically clean and decontaminate twice for 30s-90s, remove the oil and impurities on the surface of the contact, and then put the CuCr contact The head is blown with dry compressed air for 120s-300s to air dry;

[0090] The cleaning solvent in step S1 adopts MSC environmental protection oil cleaning agent, and the pH of the cleaning solvent is 7;

[0091] S2. Take the stock solution of HK environmental protection cleaning agent, prepare an HK environmental protection cleaning solution with a mass fraction of 10% with deionized water, and soak the CuCr contact in the cleaning solution for 60 seconds at 25°C;

[0092] The pH of the environmentally friendly cleaning solution in step S2 ...

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Abstract

The invention discloses an environment-friendly CuCr contact surface treatment method. The method comprises the following steps: S1, carrying out ultrasonic cleaning decontamination on a CuCr contact by using a cleaning solvent to remove oil stains and other impurities on the surface of the contact, putting the CuCr contact into the cleaning solvent at normal temperature to enable the liquid level of the cleaning solvent to be higher than the uppermost end of the contact, carrying out ultrasonic cleaning twice for 30 s-90 s, and then blowing the CuCr contact for 120 s to 300 s through dry compressed air to be air-dried; S2, taking an HK environment-friendly cleaning agent stock solution, preparing an HK environment-friendly cleaning solution with the mass fraction being 2-10% through deionized water, and soaking the CuCr contact in the cleaning solution to be cleaned for 20 s-60 s at the temperature of 20-25 DEG C; and S3, carrying out ultrasonic water washing, wherein ultrasonic water washing is conducted on the CuCr contact for 30 s-120 s through deionized water. An MSC environment-friendly oil stain cleaning agent is adopted, so that oil removal is thorough; the HK environment-friendly cleaning solvent is adopted to remove stubborn impurities on the surface of the CuCr, and it is guaranteed that the surface consistency of the contact is better after magnetic grinding and polishing; and the dry compressed air is used for blowing and air-drying the contact in the technological process, and it is guaranteed that the contact is not oxidized in the air-drying process.

Description

technical field [0001] The invention relates to the technical field of material surface treatment, in particular to an environment-friendly CuCr contact surface treatment method. Background technique [0002] With the continuous development of vacuum interrupters, CuCr contacts are widely used as the contact material of vacuum interrupters with the best comprehensive performance at present. With the continuous updating and iteration of technology, people will also raise more and more demands on the surface quality of CuCr contacts. higher requirements. In vacuum circuit breakers, copper-chromium contact materials are used in a vacuum environment. The surface quality of the contacts not only affects the contact resistance when the contacts are closed, but also affects the withstand voltage and breaking capacity between the contacts. It is very important to study the grinding process of the contact surface roughness. In the field of finishing at home and abroad, people are t...

Claims

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Application Information

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IPC IPC(8): B24B31/10F26B21/00C23G5/024B08B3/12
CPCB24B31/102F26B21/001C23G5/024B08B3/12
Inventor 郭鹏王小军李鹏杨斌刘凯张石松师晓云王文斌
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD