Handheld type laser cleaning machine and contaminant removing method

Abstract

The invention belongs to the technical field of steel rust removing devices and discloses a handheld type laser cleaning machine and a contaminant removing method. Laser parameters are adjusted, the energy density of plasmas is controlled to be higher than a first threshold value and lower than a second threshold value, and a contaminated layer or an oxide layer is removed; a second threshold value about the plasmas exists; according to the surface contamination degree of the contaminated layer, the number of times of pulse is selected to clean the surface of the contaminated layer. The handheld type laser cleaning machine is free of grinding, adopts noncontact type cleaning and avoids secondary pollution; the handheld type laser cleaning machine is high in cleaning precision, high in controllability, free of consumables and high in environmental protection performance; due to the handheld type, operation and control are easy, and the handheld type laser cleaning machine can operate just by being electrified; the handheld type laser cleaning machine is high in cleaning efficiency, saves time, stable in system and long in service life; the handheld type laser cleaning machine does not influence the steel, and even surface characters, bolts and other corners can be cleaned up; by means of switching through a functional button on a laser generator, the handheld type laser cleaningmachine can be converted to achieve the function of cutting thin plates.

Description

technical field [0001] The invention belongs to the technical field of steel derusting equipment, and in particular relates to a hand-held laser cleaning machine and a method for removing pollutants. Background technique [0002] Currently, the closest prior art: [0003] Steel is something that is often used in the production field, but if the steel is exposed to the air for a long time, it will rust due to moisture, which will affect its performance. There are often workers who use brushes to remove the rust on rusty steel. The workload is heavy but the effect is very small. The traditional cleaning industry has a variety of cleaning methods, most of which use chemical agents and mechanical methods to clean the surface of the workpiece. [0004] Today, as my country's environmental protection laws and regulations are becoming more and more stringent, and people's awareness of environmental protection and safety is increasing, the types of chemicals that can be used in in...

AI Technical Summary

Problems solved by technology

[0006] (1) In the prior art, there is no combination of laser cleaning to solve the problems that cannot be solved by traditional cleaning methods

Moreover, the prior art cannot vaporize the rust and form a plasma to separate from the surface of the steel

[0007] (2) In the existing technology, it is grinding and contact cleaning, which is prone to secondary pollution; low cleaning precision and weak controllability; high consumables and poor environmental protection; poor control and low cleaning efficiency

[0008] (3) The disadvantage of chemical cleaning is that when the chemical cleaning solution is not selected properly, it will cause corrosion damage to the substrate of the cleaning object and cause losses

[0010] At present, it is impossible to clean large areas with high efficiency

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