GB/T 35472.5-2017Test method for friction element of wet automatic transmission—Part 5: Durability test method (English PDF)
湿式自动变速箱摩擦元件试验方法 第5部分：耐久性试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 29, 2017
Implementation date
November 1, 2018
Scope
GB/T 35472.5-2017 is the English-translated version of 湿式自动变速箱摩擦元件试验方法 第5部分：耐久性试验方法.
GB/T 35472.5-2017 is the Chinese standard "Test method for friction element of wet automatic transmission—Part 5: Durability test method".
Its scope clause reads: 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.
Its clauses include test equipment; typical test conditions and parameters; test procedures.
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Document preview — GB/T 35472.5-2017
National Standard of the People's Republic of China
- ICS
- 43.040.40
- Classification
- Q 69
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 test equipment
- 4 typical test conditions and parameters
- 5 test procedures
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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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
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Related Standards
GB/T 35472.6-2017 — Test method for friction element of wet automatic transmission - Part 6: µ-PVT test method
GB/T 35472.4-2017 — Test method for friction element of wet automatic transmission—Part 4: High-speed stepped power test method
GB/T 35472.7-2017 — Test method for friction element of wet automatic transmission - Part 7: Band friction test procedure
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