GB/T 37209-2018 English PDF

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GB/T 37209-2018: Nonmetallic rubber base wet type frictional materials
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37209-2018	259	Add to Cart	3 days	Nonmetallic rubber base wet type frictional materials	Valid

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Basic data

Standard ID: GB/T 37209-2018 (GB/T37209-2018)
Description (Translated English): Nonmetallic rubber base wet type frictional materials
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q69
Classification of International Standard: 43.040.50
Word Count Estimation: 13,138
Date of Issue: 2018-12-28
Date of Implementation: 2019-11-01
Regulation (derived from): National Standard Announcement No. 17 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37209-2018: Nonmetallic rubber base wet type frictional materials

---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.
Nonmetallic rubber base wet type frictional materials ICS 43.040.50 Q69 National Standards of People's Republic of China Non-metallic rubber-based wet friction material Published on.2018-12-28 2019-11-01 implementation State market supervision and administration China National Standardization Administration issued

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. Huangshan Benma Group Co., Ltd., Hangzhou Kerfili Technology Co., Ltd., Xi'an Shuntong Electromechanical Application Technology Research Institute, Xianyang Non-Metallic Mineral Research and Design Institute Co., Ltd., National Non-metallic Mineral Products Quality Supervision and Inspection Center, Qingdao Huaruifeng Machinery Co., Ltd. the company. The main drafters of this standard. Wen Jialu, Hua Shaojie, Xu Nanhan, Shao Huanhua, Liu Xuegeng, Du Ming, Xu Jinxi, Zhu Mianpeng, Shi Zhigang, Wei Jinbao. Non-metallic rubber-based wet friction material

1 Scope

This standard specifies the classification, requirements, test methods and inspection rules for non-metallic rubber-based wet friction materials (hereinafter referred to as "friction materials"). And as well as marking, packaging, transportation and storage. This standard applies to friction materials for friction elements of wet friction systems in motorcycles, agricultural machinery and industrial machinery.

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 2828.1. Sampling procedures for sampling by sampling - Part 1 . Batch-to-batch sampling plan, searched by AQL GB/T 35472.2 Test methods for friction elements of wet automatic gearbox Part 2. Guide to the use of SZBL friction testers GB/T 35472.6 Test methods for friction elements of wet automatic gearbox Part 6. Relationship between frictional properties and pressure, velocity and temperature experiment method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Midpoint dynamic friction coefficient midpointcoefficient In the dynamic joint test, the coefficient of dynamic friction measured at the midpoint of the braking time. 3.2 Static friction coefficient breakawaycoefficient Static motor drive speed and static torque time shall be specified during the measurement by static joint test. 3.3 End dynamic friction coefficient endpointcoefficient The coefficient of dynamic friction measured at the end of the dynamic joint test. 3.4 Wear amount wear The difference in thickness (in millimeters) before and after the friction material test under specified conditions.

4 classification

Non-metallic rubber-based wet friction materials are classified into two categories according to their use and should meet the requirements of Table 1. ......

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