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GB/T 37218-2018 English PDF

US$679.00 · In stock
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GB/T 37218-2018: Brake pad for high speed railway vehicles
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 37218-2018679 Add to Cart 5 days Brake pad for high speed railway vehicles Valid

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Basic data

Standard ID: GB/T 37218-2018 (GB/T37218-2018)
Description (Translated English): Brake pad for high speed railway vehicles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q69
Classification of International Standard: 43.040.40
Word Count Estimation: 34,334
Date of Issue: 2018-12-28
Date of Implementation: 2019-11-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37218-2018: Brake pad for high speed railway vehicles

---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.
Brake pad for high speed railway vehicles ICS 43.040.40 Q69 National Standards of People's Republic of China Brake lining for high speed motor train Published on.2018-12-28 2019-11-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Structure and materials 2 5 Requirements 2 5.1 Appearance 2 5.2 Size 2 5.3 Material 3 5.4 Friction wear requirements 4 6 Test method 4 6.1 Appearance inspection 4 6.2 Dimensional inspection 4 6.3 Material Inspection 4 6.4 Friction and wear test 5 7 Inspection rules 5 7.1 Factory inspection 5 7.2 Type test 5 8 Marking, packaging, transport and storage 6 8.1 Mark 6 8.2 Packing 6 8.3 Transportation 6 8.4 Storage 6 Appendix A (Normative Appendix) CRH Series Brake Lining Interface Structure and Material for High Speed Motors 7 Appendix B (Normative Appendix) Brake lining friction coefficient requirements for high-speed motor vehicles 8 Appendix C (Normative Appendix) Test Method for Shear Strength of Friction Materials and Shear Strength of Bonding Surfaces 12 C.1 Overview 12 C.2 Sampling and dressing of specimens 12 C.3 Test equipment and fixtures 13 C.4 Test method 14 Appendix D (Normative Appendix) Brake lining for high-speed motor car 1.1 brake test bench test procedure 15 Appendix E (Normative Appendix) Water Spraying Device 31

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Building Materials Federation. This standard is under the jurisdiction of the National Non-metallic Mineral Products and Products Standardization Technical Committee (SAC/TC406). This standard was drafted. Beijing Tianyi Shangjia High-tech Materials Co., Ltd., Xianyang Non-Metallic Mineral Research and Design Institute Co., Ltd., Qingdao Huarui Auto Parts Co., Ltd., National Non-metallic Mineral Products Quality Supervision and Inspection Center. The main drafters of this standard. Hou Libing, Wu Peifang, Sakyamuni, Wen Jiayu, Li Panfei, Wang Xiaodong. Brake lining for high speed motor train

1 Scope

This standard specifies the terms and definitions, structure and materials, requirements, and tests of brake linings for high-speed motor vehicles (hereinafter referred to as "brake linings"). Methods, inspection rules, marking, packaging, transportation and storage. This standard applies to CRH series fixed high-speed EMU (speed greater than.200km/h) synthetic brake lining and powder metallurgy materials Dynamic lining.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 700-2006 carbon structural steel Plastics -- Determination of density of non-foam plastics -- Part 1 . Dipping method, liquid pycnometer method and titration method GB/T 1184 Shape and position tolerances without tolerance values GB/T 1804 General tolerances for tolerances of linear and angular dimensions GB/T 10421 Determination of the density of sintered metal friction materials GB/T 10425 Determination of apparent hardness of sintered metal friction materials Method for determination of asbestos content in GB/T 23263 products JC/T 2268 Determination of copper and other elements in brake friction materials

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Instantaneous coefficient of friction Aa The ratio of the tangential force to the total brake lining pressure at any given moment. 3.2 Average coefficient of friction averagecoefficientoffriction Mm The integral of the instantaneous friction coefficient over the braking distance S, ie. Mm= S∫ μadS 3.3 Braking distance brakingdistance From the time when 95% of the total braking force is reached, the distance from the stop is reached.
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