GB/T 35472.5-2017 English PDF

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GB/T 35472.5-2017: Test method for friction element of wet automatic transmission -- Part 5: Durability test method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35472.5-2017	199	Add to Cart	3 days	Test method for friction element of wet automatic transmission -- Part 5: Durability test method	Valid

Similar standards

GB/T 37208   GB/T 37224   GB/T 34007   GB/T 35472.3   GB/T 35472.4   GB/T 35472.2   

Basic data

Standard ID: GB/T 35472.5-2017 (GB/T35472.5-2017)
Description (Translated English): Test method for friction element of wet automatic transmission -- Part 5: Durability test method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q69
Classification of International Standard: 43.040.40
Word Count Estimation: 10,162
Date of Issue: 2017-12-29
Date of Implementation: 2018-11-01
Regulation (derived from): National Standards Bulletin 2017 No. 32
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35472.5-2017: Test method for friction element of wet automatic transmission -- Part 5: Durability test method

---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.
Test method for friction element of wet automatic transmission - Part 5. Durability test method ICS 43.040.40 Q69 National Standards of People's Republic of China Wet Automatic Transmission Friction Elements Test Method Part 5. Durability test methods Part 5.Durabilitytestmethod 2017-12-29 Posted 2018-11-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

GB/T 35472 "wet automatic transmission friction element test method" is divided into the following seven sections. --- Part 1. Terms and definitions; --- Part 2. SZBL friction test machine use guide; --- Part 3. Low speed power increment test method; --- Part 4. High-speed power increment test method; --- Part 5. Durability test methods; --- Part 6. Test methods for the relationship between friction performance and pressure, speed and temperature; --- Part 7. Belt friction test method. This section GB/T 35472 Part 5. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by China Building Materials Federation. This part of the National Non-metallic Mineral Products and Products Standardization Technical Committee (SAC/TC406) centralized. This part of the drafting unit. Hangzhou Xiaoshan Hongqi Friction Materials Co., Ltd., Linan Hualong Friction Materials Co., Ltd., Xianyang non-metallic mineral research Research Institute Co., Ltd., Shunde District of Foshan City, quality and technical supervision standards and coding, Northwestern Polytechnical University. The main drafters of this section. Du Ming, Zhang Qiuping, Xu Nanhan, Zhang Yinhua, Xu Jinxi, Shi Zhigang, Zhu Mianpeng, Liu Hui, Wen Jiayu, Fu Ye Wei. Wet Automatic Transmission Friction Elements Test Method Part 5. Durability test methods

1 Scope

This section GB/T 35472 specifies the use of SZBL-type friction tester wet automatic gearbox friction test durability test Of the test equipment, typical test conditions and parameters, test procedures, data acquisition and results report. This section applies to SZBL type friction tester at 3600r/min or 6000r/min power increase test wet Automatic transmission clutch durability. The difference in the number of cycles that a friction element can withstand is used to evaluate the performance of a wet friction element The relationship between the number of cycles.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 35472.2 wet automatic gearbox friction element test methods - Part 2 .SZBL friction test machine use guide GB/T 35472.3 wet automatic gearbox friction element test methods Part 3. Low-speed power increment test method GB/T 35472.4 wet automatic transmission frictional elements test methods - Part 4. High-speed power increment test method

3 test equipment

The test equipment is a SZBL type friction tester with static engagement device. Its performance and accuracy should be consistent with the provisions of GB/T 35472.2. Its inertia configuration should meet the GB/T 35472.3 or GB/T 35472.4 requirements.

4 typical test conditions and parameters

Press the working conditions of the friction element in the GB/T 35472.3 or GB/T 35472.4 test conditions selected test parameters for durability Sexual test.

5 test procedures

5.1 Test description Durability test run.200 times first, until the braking time is stable, according to the conditions of the power increment test for a specific number of tests cycle. The inertia used in the run-in test is the first power-up test of the selected 3600r/min or 6000r/min test method Inertia. Durability test parameters were obtained by repeating.200 dynamic and static bond cycles in the selected power ramp test To Appendix A lists an example of a test parameter report. 5.2 test after the test Turn off the power of the test stand after each stage of the test. After completing the required dynamic and static tests, open the cover and place the friction plates and dual ......

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