A method for detecting the rationality of powder coating curing process parameters

By measuring the workpiece's furnace temperature curve and using the solvent wiping method and color difference comparison method, the difficult problem of judging the rationality of powder coating curing parameters on complex workpieces was solved, and rapid and accurate curing parameter evaluation was achieved, ensuring the integrity and consistency of the paint film.

CN116124681BActive Publication Date: 2025-09-09XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Application Number
CN202211207506.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-30
Publication Date
2025-09-09
Estimated Expiration
2042-09-30

AI Technical Summary

Technical Problem

Existing technologies are unable to quickly and accurately determine whether the curing parameters of powder coatings on complex workpieces are reasonable, resulting in problems such as the paint film not drying thoroughly, overdrying, or poor consistency.

Method used

By measuring the furnace temperature curves at different thicknesses of the workpiece, the corresponding curing parameters are determined, and the solvent wiping method and color difference comparison method are used to evaluate the curing effect of the paint film, quickly judging whether the curing parameters of each part are reasonable.

Benefits of technology

It can restore the curing conditions of the actual workpiece surface under laboratory conditions, quickly determine whether the curing parameters of each part are reasonable, and ensure the quality and consistency of powder coating on-site construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the technical field of powder coating spraying, and specifically relates to a method for detecting the rationality of powder coating curing process parameters. The method includes selecting heating parameters to heat a workpiece on site, measuring the furnace temperature curve at different thicknesses of the workpiece, and determining the curing parameters corresponding to different thicknesses based on the furnace temperature curve at different thicknesses of the workpiece; spraying multiple test panels, and curing the test panels into films using the curing parameters corresponding to different thicknesses; evaluating the cured paint film using a solvent wiping method and a color difference comparison method, and comprehensively evaluating the rationality of the heating parameters based on the paint film evaluation results. The present invention can restore the curing conditions of various parts of the surface of workpieces of different thicknesses in actual sites, and can quickly determine whether the curing parameters of each part are reasonable, providing a basis for judging the rationality of the powder coating on-site construction process.
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Citation Information

Patent Citations

  • Method for testing curing degree of low-temperature conversion type paint film

    CN113310890A

  • A method and a device for measuring parameters of paint films

    WO2001031293A1