Method for detecting circulating stability of coating

A technology of cycle stability and detection method, used in measurement devices, analytical materials, instruments, etc.

Inactive Publication Date: 2019-01-15
LANGFANG NIPPON PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the existing detection method cannot more realistically simulate the environment faced by the paint in the actual use process, so that the experimental results are quite different from the actual situation, the purpose of the present invention is to provide a detection method for the cycle stability of the paint, This method combines the actual situation of the coating, especially the metal paint, in the coating cycle process, and simulates the key variables such as pump frequency, time, dispersion rate, temperature and the state of the coating in the circulation pump in the use site. The results are evaluated, and the analysis of the experimental results is more objective, detailed and specific through the evaluation and analysis of the color difference, appearance and aluminum powder oxidation, cracking, deformation number and unit area ratio. Improvement and application provide directions, and at the same time can effectively predict potential risks

Method used

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  • Method for detecting circulating stability of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Evaluate the cycle stability of AR 2000 water-based metallic paint (flash crystal silver gray) used in a car site, test the cycle stability of the water-based silver car topcoat in the circulating pump of the car painting site, and when there is an abnormality, the possible Analyze the reasons:

[0045] Test according to the detection method of coating cycle stability of the present invention:

[0046] 1. Take out 4kg of the paint to be tested as a comparison sample before and after the experiment;

[0047] 2. Take another 30kg of paint to be tested and put it into the paint tank of the circulation experiment;

[0048] 3. Refer to the on-site pipeline circulation conditions, set and record the circulation pump and parameters, the parameters are shown in Table 1;

[0049] 4. Detect and record the original paint parameters of the 4kg sample paint taken out;

[0050] 5. Start the circulation equipment, conduct a cycle stability experiment on the paint, take samples at t...

Embodiment 2

[0066] The three paints (water-based metallic paint A, B, C (A: AR 3000 Ayers Gray; B: laser gray water-based metallic finish; C: AR 20001F7)) are all metallic water-based paints, and the colors are similar, all of which are silver Gray, visually, flashing effect and appearance are equivalent, but in order to compare the workability of the paint, the cycle stability of these three paints is now compared and evaluated:

[0067] Test according to the detection method of coating cycle stability of the present invention:

[0068] 1. Take out 4kg of the prepared coatings to be tested as the comparison samples before and after the experiment;

[0069] 2. Take another 30kg of the paint to be tested and put it into the paint tank of the circulation experiment;

[0070] 3. Set the pipeline circulation conditions. The circulation equipment of the three paints is consistent, and at the same time, the parameters are also consistent. Set and record the circulation pump and parameters. The...

Embodiment 3

[0090] Evaluate the cycle stability of AR 2000 3R3 used in a car site, test the cycle stability of the car topcoat in the circulating pump of the car painting site, and analyze the possible causes when abnormalities occur:

[0091] Test according to the detection method of coating cycle stability of the present invention:

[0092] 1. Take out 4kg of the paint to be tested as a comparison sample before and after the experiment;

[0093] 2. Take another 30kg of paint to be tested and put it into the paint tank of the circulation experiment;

[0094] 3. Refer to the on-site pipeline circulation conditions, set and record the circulation pump and parameters, the parameters are shown in Table 6;

[0095] 4. Detect and record the original paint parameters of the 4kg sample paint taken out;

[0096] 5. Start the circulation equipment, conduct a cycle stability experiment on the paint, take samples at the preset time points on the 3rd day, 7th day, 14th day, and 17th day, and test a...

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Abstract

The invention discloses a method for detecting the circulating stability of a coating. The method comprises the following steps: dividing a coating to-be-detected into two parts, wherein one part is used as a comparative sample, and the other part is put into a coating storage tank of a thoroughly cleaned circulating pipeline device; performing parameter setting on the circulating pipeline deviceto perform circulating on the coating; performing sampling detection on the coating during circulating; separately detecting the performance of samples taken out at a plurality of different preset time points during circulating, and comparing the performance of the samples with the performance of the comparative sample; meanwhile, spraying the samples taken out at a plurality of different preset time points; performing baking according to a predetermined requirement, testing the performance of the samples after baking, and comparing them with the comparative sample. According to the method fordetecting the circulating stability of the coating, a coating resistance circulating pump and a dispersion equipment shearing are simulated from parameters of a circulating experiment equipment, i.e., the stirring speed, the circulating time, the coating temperature, the pressure, the pipeline length and the like, so that the obtained results are more consistent with actual conditions.

Description

technical field [0001] The invention belongs to the technical field of paint detection, and relates to a detection method of paint cycle stability, in particular to a detection method of metal paint cycle stability. Background technique [0002] After the paint manufacturer completes the paint production, the paint is sent to the automotive paint manufacturer or paint user. For large-scale paint manufacturers, especially manufacturers of industrial parts such as automobiles, aircrafts, ships, steel coils, and pipelines, it is very important for parts The coating of products and products will be painted with air guns or robots, and the paint will be powered by air pumps, electronic pumps or other pumps to send the paint in the storage tank to the spraying equipment through the paint transportation pipeline. Due to the changes and requirements of spraying equipment on painting parameters such as flow rate and pressure, the paint delivered to the equipment is not completely spr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 梅鹏杨秋红
Owner LANGFANG NIPPON PAINT
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