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A method for cleaning the surface of copper and aluminum components of a high-power laser device

A technology of laser devices and aluminum components, which is applied in the field of laser engineering, can solve difficult processing requirements and other problems, and achieve the effect of high surface cleanliness and good removal effect

Inactive Publication Date: 2018-07-03
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no mature and systematic method for surface treatment of ultra-high clean copper and aluminum components.
There are some processing methods in the fields of microelectronics, aerospace and other fields, but the scale, material and use of the mechanical components involved are quite different from those in the field of high-power lasers, so they cannot be directly quoted
At the same time, due to the different surface cleanliness requirements of copper and aluminum components of high-power laser devices, it is difficult to meet the processing requirements reliably, efficiently and economically by general processing methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take the total reflection mirror frame in the high-power laser device, and the whole body is made of aluminum alloy.

[0028] The cleaning steps are as follows:

[0029] 1. Rinse the frame of the total reflection mirror with pure water;

[0030] 2. Use high-pressure nitrogen to purge the frame of the total reflection mirror, and then use a clean long-fiber towel to wipe off the water stains on the surface of the frame of the total reflection mirror;

[0031] 3. Prepare a solution of Brolin GD-815 cleaning agent with a concentration of 60g / L, heat it to 45°C~75°C, and completely submerge the frame of the total reflection mirror in it for 15 minutes;

[0032] 4. Use a high-pressure water jet with an outlet pressure of 17MPa, a flow rate of 15L / min, a temperature of 50°C~60°C, and a resistivity of 15MΩ. 2 Perform high-pressure spray rinsing on the total reflection mirror frame at a rate of / min until there is no cleaning agent residue on the surface of the total reflecti...

Embodiment 2

[0043] Example 2 is basically the same as Example 1, except that the material of the cleaning element is copper-zinc alloy, and the water outlet pressure is 12 MPa during the high-pressure spray cleaning process. The test shows that the cleanliness level of the surface after cleaning meets the use requirements.

Embodiment 3

[0045] Example 3 is basically the same as Example 1, except that the material of the cleaning element is copper-zinc alloy, and the outlet pressure during the high-pressure spray cleaning process is 7MPa, and the test shows that the cleanliness level of the surface after cleaning meets the requirements for use.

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PUM

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Abstract

The invention provides a cleaning method for the surfaces of copper and aluminum elements of a high-power laser device. According to the cleaning method, firstly, a common cleaning method is adopted for removing large-particle-size and large-area pollutants on the surfaces of the elements, then the elements are soaked in a cleaning agent solution to be wetted after dehydration treatment, and surface oxides are removed after dehydration treatment; and two times of high-pressure precise spraying cleaning are carried out on the elements through the cleaning agent solution and clear water correspondingly, and finally dehydration treatment is carried out. The cleaning method for the surfaces of the copper and aluminum elements of the high-power laser device is suitable for cleaning of the copper and aluminum elements of the high-power laser device, the pollutant removing effect is good, the cleanliness grade of the surfaces of the elements is high, and the method has the characteristics of being reliable, economical and efficient. The surface cleanliness grade of the surfaces of the cleaned copper and aluminum elements is higher than the BJD 100 grade-A / 10A.

Description

technical field [0001] The invention belongs to the field of laser engineering, and in particular relates to a method for cleaning the surface of copper and aluminum components of a high-power laser device. Background technique [0002] High-power lasers are widely used in many high-tech fields, but with the continuous development of high-power laser technology, the power density required by each unit device of the optical system is getting higher and higher. Contaminants on the surface of optical components will seriously reduce the damage resistance of optical components under the irradiation of high-power laser beams. Optical components in high-power laser devices are installed on mechanical components, and the cleanliness of mechanical components is directly related to the surface cleanliness of optical components. There are a large number of copper and aluminum components in high-power laser devices, so it is necessary to ensure the cleanliness of copper and aluminum c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B3/02B08B3/08C23G1/10C23G1/12
CPCB08B3/02B08B3/08C23G1/103C23G1/125
Inventor 吕海兵贾宝申苗心向刘昊牛龙飞周国瑞邹睿李可欣
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS