Laser cleaning system and method

Abstract

The invention provides a laser cleaning system and method. Spectral information projected on a sample being cleaned by a first Q-switched laser by a spectrograph through a first laser probe; the thickness of a coating and the ratio of various elements of a to-be-cleaned sample of the sample being cleaned analyzed by a control terminal; the thickness of the coating and the proportion of various elements of the to-be-cleaned sample are compared with stored data, and thus, the coating thickness and the coating variety can be judged; parameters of output laser light are preset according to a judgment result; laser cleaning heads are controlled to shoot out a beam of laser light having preset energy intensity so as to remove the coating on the to-be-cleaned sample from the surface of the samplebeing cleaned; after cleaning is finished, another beam of laser light is projected from a second Q-switched laser; spectral information is collected through a second laser probe; the thickness and the element ratio of the coating are analyzed, and therefore, whether the sample is cleaned up or not is judged, and whether the sample needs to be cleaned again or not is judged. The effect of pretreatment can be achieved by employing laser-induced breakdown spectroscopy; damage to the surface of the sample is small; and online non-contact detection can be realized.

Description

technical field [0001] The invention relates to the technical field of laser cleaning, in particular to a laser cleaning system and method. Background technique [0002] As a green and environmentally friendly cleaning method, laser cleaning is known as "the most potential cleaning technology in the 21st century". Compared with traditional cleaning methods, it has the advantages of good cleaning effect, high control precision, wide application range, low operating cost, high cleaning efficiency, and no environmental pollution. [0003] However, before laser cleaning, there is a relatively indispensable step, that is, it is necessary to analyze and judge the surface of each workpiece, and then adjust the corresponding parameters to obtain the best laser cleaning process parameters. The whole process is relatively complicated and cumbersome, which greatly reduces the work efficiency of laser cleaning. [0004] Adopting the traditional online monitoring method will increase t...

AI Technical Summary

Problems solved by technology

The whole process is relatively complicated and cumbersome, which greatly reduces the efficiency of laser cleaning

[0004] Adopting the traditional online monitoring method will increase the complexity of the equipment, the operation risk process is cumbersome, and the equipment cost will be increased, which is not conducive to the promotion of laser cleaning industrialization

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