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Method for evaluating weather resistance of automotive interior part by adopting sun-tracking condensation accelerated exposure test

An exposure test and sun tracking technology, which is applied in the fields of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve problems such as unfixed natural environmental conditions, and achieve good consistency, speed up the test process, and strong versatility Effect

Inactive Publication Date: 2015-05-13
CHINA NAT ELECTRIC APP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another problem faced by the natural accelerated exposure test method is that the natural environmental conditions are not fixed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Place the sun tracking and concentrating accelerated exposure test device in Qionghai, Hainan, my country, at the damp heat natural exposure test site, select a test sample with a flat surface of the car dashboard and cut it into 10cm×20cm, adjust the initial state according to the standard requirements, and install it in the accelerated Expose the target plate of the test device. Paste the temperature sensor and the total solar radiation sensor in the appropriate position, record the environmental data every 5 minutes, and substitute it into the model f(R,T)=ΣR·e {13.643-[5000 / (T+273.15)]} Calculate the comprehensive environmental action value received by the surface of the test sample. When the environmental comprehensive action value reaches 8400MJ / m 2 When the test is stopped, the test sample is removed for a color difference test. The value is 2.67, which is less than the standard limit value of 3.00, and the weather resistance of the test sample is judged to be co...

Embodiment 2

[0024] Place the sun tracking and concentrating accelerated exposure test device at the dry heat natural exposure test site in Turpan, Xinjiang, my country, select a test sample with a flat surface of the car dashboard and cut it into 10cm×20cm, adjust the initial state according to the standard requirements, and install it in the accelerated Expose the target plate of the test device. Paste the temperature sensor and the total solar radiation sensor in the appropriate position, record the environmental data every 5 minutes, and substitute it into the model f(R,T)=ΣR·e {13.643-[5000 / (T+273.15)]} Calculate the comprehensive environmental action value received by the surface of the test sample. When the environmental comprehensive action value reaches 8400MJ / m 2 When the test is stopped, the test sample is removed for a color difference test. The value is 2.75, which is less than the standard limit value of 3.00, and the weather resistance of the test sample is judged to be coop...

Embodiment 3

[0026] Place the sun tracking and concentrating accelerated exposure test device in Qionghai, Hainan, my country, at the damp heat natural exposure test site, select a test sample with a flat surface of the car dashboard and cut it into 10cm×20cm, adjust the initial state according to the standard requirements, and install it in the accelerated Expose the target plate of the test device. Paste the temperature sensor and the total solar radiation sensor in the appropriate position, record the environmental data every 8 minutes, and substitute it into the model f(R,T)=ΣR·e {13.643-[5000 / (T+273.15)]} Calculate the comprehensive environmental action value received by the surface of the test sample. When the environmental comprehensive action value reaches 8400MJ / m 2 When the test is stopped, the test sample is removed for a color difference test. The value is 2.72, which is less than the standard limit value of 3.00, and the weather resistance of the test sample is judged to be co...

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Abstract

The invention discloses a method for evaluating weather resistance of an automotive interior part by adopting a sun-tracking condensation accelerated exposure test. The method comprises steps as follows: (1) cutting a test sample out of the flatter part of the surface of the to-be-tested automotive interior part, and mounting the test sample at a target plate of a sun-tracking condensation accelerated exposure test device after adjusting the initial state as required; (2) continuously monitoring environmental conditions such as the temperature of the surface of the test sample, solar irradiation and the like during testing, and calculating the environmental combined action value received by the surface of the test sample during testing by using a double-environmental-factor quantitative model; (3) ending the test after the environmental combined action value reaches a specified value, taking down the test sample for a performance test, and evaluating whether the test sample meets the using requirement or not. According to the method, the accelerated aging test is performed on the automotive interior part under natural environmental conditions, the weather resistance quality of the interior part is evaluated according to the test result, the environmental conditions are real, the result is accurate, and effects caused by irradiation at different temperatures on aging of the test sample are considered, so that test results in different periods or different regions are consistent.

Description

technical field [0001] The invention relates to a method for evaluating the weather resistance of automobile interior parts, belonging to the field of product quality detection and evaluation. Background technique [0002] As an outdoor means of transportation, automobiles will inevitably face the test of various environmental factors during their service period, especially the long-term effects of climatic factors such as light, cold and heat, and wind and rain. If the weather resistance of the parts is insufficient, it will lead to premature failure. failure, affecting the appearance and performance of the car and even causing safety hazards. [0003] In order to evaluate the weather resistance of parts before material selection, major automobile manufacturers in the world have designed different environmental tests to test the weather resistance of auto parts. To sum up, there are three main types: one is the outdoor direct exposure test, that is, the simulated parts are...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 张晓东揭敢新王俊江鲁
Owner CHINA NAT ELECTRIC APP RES INST
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