Supercharge Your Innovation With Domain-Expert AI Agents!

Method for testing corrosion resistance of coating and application thereof

A technology of corrosion resistance and test method, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of small acceleration magnification, unfavorable coating protection performance, long test period and so on

Active Publication Date: 2018-03-06
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural environment test method can only evaluate the influence of the natural environment in a single place on the protective performance of the coating, and the test period is relatively long
In the existing laboratory simulated accelerated test methods, most of the accelerated test processes are relatively complicated, the correlation between the accelerated test results and the natural environment test results is poor, and the acceleration magnification is relatively small, resulting in a relatively long test period. Not conducive to quick and accurate evaluation of the protective performance of the coating

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing corrosion resistance of coating and application thereof
  • Method for testing corrosion resistance of coating and application thereof
  • Method for testing corrosion resistance of coating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The specific process of the corrosion resistance test method of the coating of the present embodiment is as follows:

[0060] 1. Test object: The primer on the surface of the substrate is LS083 polyurethane, and the topcoat is H06-3 zinc yellow epoxy polyamide. Among them, the substrate is 2A12 aluminum plate, the dry film thickness of the primer is 20 μm, and the dry film thickness of the topcoat is 20 μm. 60 μm.

[0061] 2. Test arrangement: Alternately conduct UV aging test and salt spray test on the samples, and conduct the UV aging test and salt spray test 6 times each. The irradiation test and the condensation test were carried out 6 times each, and the salt spray test included alternately performing the salt spray test and the drying test on the samples, and the salt spray test and the drying test were carried out 3 times each.

[0062] 3. Specific operation of the test:

[0063] (1) The specific operation of the ultraviolet irradiation test is: at 63°C, the ir...

Embodiment 2

[0068] The specific process of the corrosion resistance test method of the coating of the present embodiment is as follows:

[0069] 1. Test object: The primer on the surface of the substrate is acrylic polyurethane, and the topcoat is a sample of fluorine-containing polyamide. Among them, the substrate is a 5A06 aluminum plate, the thickness of the primer is 20 μm, and the thickness of the topcoat is 50 μm.

[0070] 2. Test arrangement: Alternately conduct UV aging test and salt spray test on the samples, and conduct the UV aging test and salt spray test 6 times each. The irradiation test and the condensation test were carried out 6 times each, and the salt spray test included alternately performing the salt spray test and the drying test on the samples, and the salt spray test and the drying test were carried out 9 times each.

[0071] 3. Specific operation of the test:

[0072] (1) The specific operation of the ultraviolet irradiation test is: at 60°C, the irradiation leve...

Embodiment 3

[0077] The specific process of the corrosion resistance test method of the coating of the present embodiment is as follows:

[0078] 1. Test object: The primer on the surface of the substrate is iron red epoxy polyamide paint and the topcoat is polyurethane paint. Among them, the substrate is A3 steel plate, the thickness of the primer is 25 μm, and the thickness of the topcoat is 80 μm.

[0079]2. Test arrangement: Alternately conduct UV aging test and salt spray test on the samples, and conduct the UV aging test and salt spray test 6 times each. The irradiation test and the condensation test were carried out 6 times each, and the salt spray test included alternately performing the salt spray test and the drying test on the samples, and the salt spray test and the drying test were carried out 6 times each.

[0080] 3. Specific operation of the test:

[0081] (1) The specific operation of the ultraviolet irradiation test is: at 57°C, the irradiation level is 0.89W / m at 340nm ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for testing the corrosion resistance of a coating and application thereof. The method for testing the corrosion resistance of the coating comprises the following steps of alternately carrying out an ultraviolet ageing test and a salt mist test on a sample, and further, carrying out both the ultraviolet ageing test and the salt mist test for at least 6 times, wherein the ultraviolet ageing test comprises that an ultraviolet irradiation experiment and a condensation experiment are carried out alternately on the sample; further, the ultraviolet irradiation experiment and the condensation experiment are each carried out for at least 6 times; the total time of the ultraviolet ageing test is 72 to 96 hours; the salt mist test comprises that a salt spray experiment and a drying experiment are alternately carried out; further, the salt spray experiment and the drying experiment are each carried out for 3 to 9 times; the total time of the salt mist test is 72 to 96 hours. The method for testing the corrosion resistance of the coating can be used for simulating the influences, on the corrosion performance of the coating, of factors of ultraviolet irradiation, wetting and drying alternation, salt mist and the wetting and drying alternation, condensation, temperature change and the like at the same time; the experimental process is simplified; the relativity is high; the acceleration is obvious and the experimental period is short.

Description

technical field [0001] The invention relates to the technical field of test acceleration, in particular to a coating corrosion resistance test method and its application. Background technique [0002] Coating is the main means of protection for various metal products. The protective performance of coatings often has a crucial impact on the performance and life of metal products. This effect is more significant in areas with severe corrosion such as coastal areas or islands. . With the continuous development of various metal products such as electronic products, instruments and ships, etc., the requirements for the protective performance of coatings are also increasing. For a long time, corrosion resistance has been the main index to evaluate the protective performance of coatings. If the corrosion resistance of the coating system can be quickly and accurately evaluated, it will be able to provide timely and reliable information for the relevant product development, design ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/00G01N17/002G01N17/004
Inventor 张洪彬苏少燕姚珂罗琴黄创绵王春辉汪凯蔚李锴张博
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com