GB/T 37220-2018 English PDF

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GB/T 37220-2018: Rubber hose assemblies with large diameter -- Accelerated fatigue test
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37220-2018	199	Add to Cart	3 days	Rubber hose assemblies with large diameter -- Accelerated fatigue test	Valid

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Basic data

Standard ID: GB/T 37220-2018 (GB/T37220-2018)
Description (Translated English): Rubber hose assemblies with large diameter -- Accelerated fatigue test
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G42
Classification of International Standard: 23.040.70
Word Count Estimation: 10,116
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 37220-2018: Rubber hose assemblies with large diameter -- Accelerated fatigue test

---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.
Rubber hose assemblies with large diameter--Accelerated fatigue test ICS 23.040.70 G42 National Standards of People's Republic of China Large rubber hose assembly accelerated fatigue test 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 Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35). This standard was drafted. Sanluo Co., Ltd., Shenyang Rubber Research and Design Institute Co., Ltd., China Light Union (Dalian) Packaging Research Institute Limited company, Tianjin Getters Testing Equipment Technology Development Co., Ltd. The main drafters of this standard. Wang Suju, Wang Shuli, Guo Xiang, Zheng Wei, Li Delong, Feng Haifeng, Cai Zhixiong, Li Yushen. Large rubber hose assembly accelerated fatigue test

1 Scope

This standard specifies the test principle, test equipment and test for tensile, torsion and bending accelerated fatigue test of large rubber hose assemblies. Classification, samples, test environment, test procedures and test reports. This standard is applicable to single fatigue of tensile, torsion and bending of large rubber hose assemblies with a nominal inner diameter of 100 mm or more. Performance evaluation and combined fatigue performance evaluation.

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 7528 rubber and plastic hose and hose assembly terminology

3 Terms and definitions

The following terms and definitions as defined in GB/T 7528 apply to this document. 3.1 Tensile load The axial force applied when the hose is stretched. 3.2 Bending load bendload The load applied by bending the hose at the minimum bend radius.

4 Test principle

Perform a single or combined multiple tensile, torsional and/or bending test on a large rubber hose assembly on a fatigue tester to achieve The number of actions or the damage of the sample is specified.

5 fatigue testing machine

5.1 Fatigue testing machine can be one-piece tensile, torsion and bending, or independent of stretching, torsion and bending. 5.2 The fatigue tester shall have the following basic conditions. --- With a hydraulic drive system that provides the power needed for the test. ---The tooling with the pipe joints at both ends of the hose assembly is connected. After the connection, the hose assembly is horizontal and one end is tested. The process remains stationary and the other end is stretched, twisted or bent under power. --- Should have an automatic control system for parameter setting. ---Equipped with data recording device, the data in each test process (including tensile load, torsion angle, bending radius, and movement) Record and save as frequency and number of times. 5.3 Schematic diagrams of the tensile, torsion and bending tests of the fatigue testing machine are shown in Figure 1, Figure 2 and Figure 3, respectively. ......

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