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A method for cleaning the surface of stainless steel components of a high-power laser device

A technology of laser device and treatment method, which is applied in the field of laser engineering, can solve the problems that the treatment method is difficult to be reliable, efficient and economical, and achieve the effect of high surface cleanliness and good removal effect

Active Publication Date: 2018-10-09
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

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, because the surface cleanliness requirements of different mechanical components of high-power laser devices are not the same, it is difficult for general processing methods to meet the processing requirements reliably, efficiently and economically.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Take the medium light box module of the amplifier system of the high-power laser device, and the medium light box module is placed in the normal atmospheric environment without protection for more than 72h. The size of the middle light box module is 729mm×126mm×2405mm, and the whole body is made of 304 stainless steel. When using it, the surface cleanliness is required to reach BJD 100 level-A / 10.

[0030] The cleaning steps are as follows:

[0031] 1. Rinse the middle light box module with clean water;

[0032] 2. Use high-pressure nitrogen to purge the middle light box module, focusing on purging holes, holes and other parts that are easy to accumulate liquid, and then use a clean long-fiber towel to wipe off the water stains on the surface of the middle light box module; configure the concentration of 65g / L of brolin GD-815 cleaning agent solution was heated to 75°C, and the middle light box module was completely submerged in it for 15 minutes; using a high-pressure...

Embodiment 2

[0035] Example 2 is basically the same as Example 1, except that the water outlet pressure is 7MPa during the high-pressure spraying process, the ultrasonic frequency is 68kHz, and the power is 12W / L during the ultrasonic cleaning process, and the cleaning results meet the requirements.

Embodiment 3

[0037] Example 3 is basically the same as Example 1, except that the pressure at the water outlet during the high-pressure spraying process is 10 MPa, the ultrasonic frequency during the ultrasonic cleaning process is 108 kHz, and the power is 12 W / L, and the cleaning results meet the requirements.

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PUM

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Abstract

The invention provides a surface cleaning treatment method for stainless steel elements of a high-power laser device. The method includes the steps that a common cleaning method is adopted firstly to remove large particles and large area of contaminants on the surfaces of the elements, then the elements are subjected to dewatering treatment and soaked in a cleaning agent solution to be wetted, and surface oxides are removed after the dewatering treatment; and the cleaning agent solution is utilized for secondary soaking, and the elements are finally subjected to ultrasonic or high-pressure spraying to be precisely cleaned. The surface cleaning treatment method for the stainless steel elements of the high-power laser device is suitable for cleaning the stainless steel elements, of different dimensions, in the high-power laser device, the contaminant removal effect is good, and the surface cleanliness degree of the stainless steel elements is high; the surface cleaning treatment method has the advantages of being reliable, economical and high in efficiency; and the surface cleanliness degree of the cleaned stainless steel elements is superior to BJD 100-level 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 a stainless steel component 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. Therefore, it is necessary to ensure the cleanliness of mechanical components. At present, there is no mature and systematic surface treatment method for ultra-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B3/08B08B3/12B08B3/02C23G1/08
CPCB08B3/02B08B3/08B08B3/12C23G1/086
Inventor 苗心向贾宝申吕海兵刘昊牛龙飞周国瑞邹睿李可欣
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS