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TCSAE135-2020: Commercial vehicle assessment method of exposure to natural weathering
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| T/CSAE 135-2020 | English | 589 |
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Commercial vehicle assessment method of exposure to natural weathering
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T/CSAE 135-2020
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Basic data | Standard ID | T/CSAE 135-2020 (T/CSAE135-2020) | | Description (Translated English) | Commercial vehicle assessment method of exposure to natural weathering | | Sector / Industry | Chinese Industry Standard | | Classification of Chinese Standard | T40 | | Word Count Estimation | 23,264 | | Date of Issue | 29/5/2020 | | Date of Implementation | 29/5/2020 | | Issuing agency(ies) | China Society of Automotive Engineers | TCSAE135-2020: Commercial vehicle assessment method of exposure to natural weathering---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
T/CSAE 135-2020
Commercial vehicle assessment method of exposure to natural weathering
ICS 43.080.01
T 40
Group standard
Commercial vehicle air exposure test evaluation method
2020-05-29 released
2020-05-29 Implementation
Issued by Chinese Society of Automotive Engineering
Table of contents
Foreword...II
1 Scope...1
2 Normative references...1
3 Terms and definitions...1
4 Test and evaluation principles...2
5 Vehicle aging evaluation zone...2
6 Components Aging Rating...3
6.1 Aging rating of painted parts...3
6.2 Aging rating of plastic parts...8
6.3 Aging rating of rubber parts...10
6.4 Aging Rating of Fabric Parts...13
6.5 Aging Rating of Leather Goods...13
6.6 Aging rating of coated parts...13
6.7 Aging rating of uncoated metal parts...14
7 Vehicle aging evaluation...14
Appendix A (informative appendix) Aging class table...15
Appendix B (informative appendix) Partitions and aging standards of each zone...17
References...19
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that certain contents of this document may involve patents, and the issuing agency of this document does not bear the responsibility for identifying these patents.
This standard was proposed by the Automobile Anti-Corrosion and Aging Branch of the Chinese Society of Automotive Engineering.
Drafting organizations of this standard. FAW Jiefang Qingdao Automobile Co., Ltd., Chongqing Changan Automobile Co., Ltd., Hainan Tropical Automobile Test
Co., Ltd., China FAW Group Co., Ltd. Engineering and Production Logistics Department-Vehicle Process Department, Zotye Automotive Engineering Research Institute, An
Huijianghuai Automobile Group Co., Ltd., Shaanxi Automobile Holding Group Co., Ltd., Shanghai Feiser Automotive Technology Service Co., Ltd., Dongfeng Commercial
Automobile Co., Ltd., China National Heavy Duty Truck Group Co., Ltd., Beijing Foton Daimler Automobile Co., Ltd., FAW Jiefang Automobile Co., Ltd.,
SAIC-IVECO Hongyan Commercial Vehicle Co., Ltd., Qingdao Keda New Rubber and Plastic Inspection Service Co., Ltd., FAW Car Co., Ltd., FAW-
Volkswagen Automobile Co., Ltd., Dongfeng Liuzhou Automobile Co., Ltd., Atlas Asia Material Testing Technology Co., Ltd., Changzhou Wujin Chenguang
Drafted by Metal Coating Co., Ltd., Tianjin Kerida Coating Chemical Co., Ltd., Fawer Automotive Parts Co., Ltd. Fastener Branch and other units.
The main drafters of this standard. Xu Qingmei, Liu Fei, Duan Yinghui, Li Jin, Huang Ping, Ma Yingbin, Zhang Jiaolang, Gao Chengyong, Song Hua, Wang Na
Xin, Xing Wenping, Wang Qingguo, Zhao Xiaohong, Zhou Quan, Meng Dongyang, Yu Anjun, Huang Jian, Chi Jijun, Li Chunping, Pu Liqing, Liu Dong, Fan Wei
Jiang, Zhang Yue, Zhu Chenchong, Cao Lingling, Yue Xiaofeng, Xu Qinli, Li Huaning, Cai Hongjun, Gao Linquan.
Commercial vehicle air exposure test evaluation method
1 Scope
This standard specifies the general rules for the aging rating of commercial vehicle air exposure tests, including paint coated parts, plastic parts, rubber parts, textiles
Individual aging rating methods for 7 categories of parts, leather parts, coated parts and uncoated metal parts, and the aging grade evaluation of the whole vehicle
method.
This standard applies to the atmospheric exposure test of commercial vehicles and is used to guide the atmospheric aging evaluation of the entire commercial vehicle.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 250 Gray Scale for Color Fastness Test Evaluation
GB/T 1766 Paint and varnish coating aging rating method
GB/T 9754 Paints and varnishes Determination of 20°, 60° and 85° specular gloss of paint coatings without metallic pigments
GB/T 11186 Coating film color measurement method third part color difference calculation
QC/T 728 Vehicle atmospheric exposure test method
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Exposure test sample
Used for parts exposed to natural weather.
3.2
Standard sample
Refers to storage under a constant temperature and humidity environment as a benchmark reference part for comparative evaluation in the exposure test.
3.3
Parallel plate
The paint template with the same material, paint material and paint process as the parts is used to replace the zeros that cannot measure various parameters of the paint.
The components are subjected to an exposure test.
4 Test and evaluation principles
Measure (or visually) the various parameters and surface conditions of the test sample before the test, and record the initial data and status. At the same time prepare the corresponding standard
The quasi-samples are stored in an environment under specific conditions and used for state comparison with the test samples after the test. For the gloss,
Irregular paint test samples with chromatic aberration and other properties are replaced by parallel samples. Test sample (parallel sample) in accordance with QC/T 728
The test method is to test, and the test period is determined by each unit. After the test, compare the sample sample with the standard sample, and make parallel samples
The paint parameters of the board are compared with the initial data of the parallel model before the test. Perform aging evaluation based on measurement data or phenomena.
5 Division of vehicle aging evaluation
Investigate and count the customer's attention to each part of the vehicle, and set four points A, B, C and D according to the customer's attention to each part of the vehicle.
Areas, the parts with high attention and high aging intensity are included in Area A, and then divided in order. Refer to Table 1 for the division table of aging areas for the whole vehicle, and refer to Appendix B.1 for the division method.
6 Parts ageing rating
Vehicle parts are divided into 7 categories. paint parts, plastic parts, rubber parts, fabric parts, leather parts, coated parts and uncoated metal parts.
6.1 Aging rating of painted parts
Refer to GB/T 1766 for the gloss, color difference, chalking, cracking, blistering, contamination and corrosion of the test sample (parallel sample) and
Before the test, the data is compared to obtain the individual paint aging performance rating, and then the individual paint aging ratings are comprehensively evaluated to obtain the comprehensive aging grade of the paint.
The degree of gloss loss is measured according to GB/T 9754.The paint of the cab and exterior parts is measured at a 20° angle, and the chassis paint is measured at a 60° angle.
See Table 2 for the degree of loss of light and the level of loss of light.
6.2 Aging rating of plastic parts
Compare the discoloration, chalking, material precipitation, mold growth, deformation and stickiness of the plastic parts with the data before the test to obtain a single plastic
Parts aging performance rating, and then comprehensive evaluation of each individual aging rating to obtain the comprehensive aging grade of plastic parts.
The evaluation of the discoloration grade is based on the standard GB 250, and the discoloration grade table of plastic parts is shown in Table 15.
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