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GB/T 35472.1-2017 English PDF

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GB/T 35472.1-2017: Test method for friction element of wet automatic transmission -- Part 1: Terms and definitions
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 35472.1-2017439 Add to Cart 4 days Test method for friction element of wet automatic transmission -- Part 1: Terms and definitions Valid

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Basic data

Standard ID: GB/T 35472.1-2017 (GB/T35472.1-2017)
Description (Translated English): Test method for friction element of wet automatic transmission -- Part 1: Terms and definitions
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q69
Classification of International Standard: 43.040.40
Word Count Estimation: 22,275
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 35472.1-2017: Test method for friction element of wet automatic transmission -- Part 1: Terms and definitions


---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 1. Terms and definitions ICS 43.040.40 Q69 National Standards of People's Republic of China Wet Automatic Transmission Friction Elements Test Method Part 1. Terms and definitions Part 1.Termsanddefinitions 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 1. 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. Northwestern Polytechnical University, Hangzhou Xiaoshan Hongqi Friction Materials Co., Ltd., Lin'an Hualong Friction Materials Co., Ltd., Buddha Shunde District, Zhongshan City, the quality and technical supervision standards and coding, Xianyang non-metallic mineral research and Design Institute Co., Ltd.. The main drafters of this section. Fu Ye Wei, Li Hejun, Zhu Mianpeng, Zhang Qiuping, Xu Nanhan, Zhang Yinhua, Xu Jinxi, Liu Hui, Shi Zhigang, Du Ming, Duan Ya Ping. Wet Automatic Transmission Friction Elements Test Method Part 1. Terms and definitions

1 Scope

GB/T 35472 provisions of this part of the wet automatic transmission friction element test method, brake band or other and wet friction system Related terms and definitions, symbols and their formulas. This section applies to the inertia brake test equipment for friction element testing. Some terms also apply to drive or brake devices And other friction test equipment friction performance analysis. Note. Appendix A gives a list of symbols for terms.

2 friction system

2.1 Friction element frictionelement Friction plate and dual plate components. 2.2 Friction plate frictionplates Core plate and friction material layer. 2.3 Friction surface frictionsurfaces nf The number of contact surfaces of the friction plate and the counter plate. 2.4 The total area grossarea Ag The area of each friction surface of the friction plate, which contains the area of the groove, hole, etc. that is not in contact with the dual plate. 2.5 Net area netarea An The total area minus the groove, hole and other areas not in contact with the dual piece. An = Ag-A0 (1) In the formula. A0 --- slot, hole and other non-contact area. 2.6 Effective radius effectiveradius re The distance between the center of mass of the annular friction plate and the axis of rotation. re = 2 (r3o-r3i) 3 (r2o-r2i) (2)
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