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An online monitoring device and method for laser cleaning based on temperature perception

A technology of laser cleaning and monitoring device, applied in cleaning methods and utensils, chemical instruments and methods, etc., can solve the problem of inability to accurately judge whether the surface of the object to be cleaned is clean, the high cost of laser-induced breakdown spectroscopy, and the technical skills of operators. High level requirements, to achieve the effect of simple structure, low cost, and low technical level requirements

Active Publication Date: 2022-04-08
SHENYANG POLYTECHNIC UNIV
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  • Abstract
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Problems solved by technology

[0005] The present invention provides an on-line monitoring device and method for laser cleaning based on temperature perception. The problem of high technical level requirements for operators

Method used

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  • An online monitoring device and method for laser cleaning based on temperature perception
  • An online monitoring device and method for laser cleaning based on temperature perception
  • An online monitoring device and method for laser cleaning based on temperature perception

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Embodiment Construction

[0035] In order to make the device structure, technical principle and implementation method of the present invention more intuitive and clear, the following examples and accompanying drawings will be used for description.

[0036] The monitoring principle involved in the present invention is that under the irradiation of laser light, both the pollutant and the substrate will absorb heat and heat up; but due to the different thermophysical parameters of different substances, when they are cleaned, the temperature rise rate and temperature peak value of the two are Different, the measured voltage peak is also different. Under the condition of keeping the same laser parameters, cleaning direction and cleaning starting position for each cleaning, according to this monitoring principle, after cleaning the surface to be cleaned for many times, if the drawn voltage peak change curve appears with the cleaning times With the increase of , the voltage peak change curve starts to decreas...

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Abstract

The invention relates to an online monitoring device and method for laser cleaning based on temperature perception. The device includes a laser cleaning device and an online monitoring device; according to the parameters of the laser, it is judged whether the object to be cleaned is suitable for the monitoring method; the surface of the object to be cleaned is placed on the Within the beam waist range of the focused laser beam, turn on the laser cleaning device and on-line monitoring device for laser cleaning; perform laser cleaning several times until the voltage change curve tends to be stable, then stop laser cleaning; observe whether there is burning on the surface of the object to be cleaned. If there are burn marks, perform laser cleaning again; if there are no burn marks, the laser cleaning ends. The laser cleaning on-line monitoring device and method can accurately judge whether the object to be cleaned is clean by utilizing the difference in thermophysical parameters of different substances, and solves the problem that the surface of the object to be cleaned cannot be accurately judged whether the surface of the object to be cleaned is clean through manual naked eye observation.

Description

technical field [0001] The invention relates to the field of laser cleaning and on-line monitoring, in particular to an on-line monitoring device and method for laser cleaning based on temperature perception. Background technique [0002] The cleaning methods commonly used in traditional industries are the use of chemical agents and mechanical cleaning. However, cleaning with chemicals has a high probability of causing environmental pollution, which is not in line with my country's environmental protection policy; and mechanical cleaning is difficult to control the accuracy, and it is easy to cause damage to the substrate. Laser cleaning has the following advantages: (1) Laser cleaning does not require any chemicals and is a "green" cleaning method. (2) Laser cleaning is non-contact cleaning, and there will be no secondary pollution. (3) Laser cleaning can realize remote operation, which can ensure the safety of workers. (4) The scope of application of laser cleaning can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B7/00B08B13/00
CPCB08B7/0042B08B13/00
Inventor 王蔚沈杰刘伟军李强
Owner SHENYANG POLYTECHNIC UNIV
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