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GB/Z 41506-2022Hydraulic fluid power - Fatigue pressure testing of metal pressure-containing envelopes - Rating methods (English PDF)

液压传动金属承压壳体的疲劳压力试验评价方法

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

July 11, 2022

Implementation date

February 1, 2023

Scope

GB/Z 41506-2022 is the English-translated version of 液压传动金属承压壳体的疲劳压力试验评价方法.

GB/Z 41506-2022 is the Chinese standard "Hydraulic fluid power - Fatigue pressure testing of metal pressure-containing envelopes - Rating methods".

Its scope clause reads: This document gives the fatigue pressure evaluation of metal pressure-bearing housings of hydraulic components under continuous stable and periodic internal pressure loads. price method.

This document applies only to fabrication of metal, operation at temperatures that do not produce creep and low temperature embrittlement, stress induced only by pressure, not There are hydraulic element pressure housings that have reduced strength due to corrosion or other chemical effects.

The pressure housing may include gaskets, seals and Other non-metallic parts, but these parts are not used as part of the pressure-bearing housing of the tested hydraulic components (see GB/T 19934.1).

This document does not apply to piping components (i.e. fittings, hoses, rigid pipes) specified in ISO 4413.Fatigue testing for piping components See GB/T 26143, ISO 6803 and ISO 6605 for methods.

This document presents a general method for fatigue pressure evaluation of metallic pressure-bearing housings for hydraulic components. In addition, EN14359 for storage Specific methods and test requirements are described in Fatigue Pressure Evaluation of Energy Equipment. Its clauses include terms and definitions.

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Document preview — GB/Z 41506-2022

National Standard of the People's Republic of China

Classification: J 20

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Selection of material correlation coefficient
5 Determine the cyclic test pressure
6 Carry out the fatigue test
7 Similarity Evaluation
8 Evaluation Statement
9 Notes (citing this document)
Appendix A (Informative) Material Factor
Appendix B (normative) Calculation of coefficient of variation (KV)
Appendix C (Informative) Acceleration Factor
Appendix D (Informative) Basic Theory of Fatigue Pressure Evaluation Method
Appendix E (Informative) Test Verification Example

1 Scope

This document gives the fatigue pressure evaluation of metal pressure-bearing housings of hydraulic components under continuous stable and periodic internal pressure loads.

price method.

This document applies only to fabrication of metal, operation at temperatures that do not produce creep and low temperature embrittlement, stress induced only by pressure, not

There are hydraulic element pressure housings that have reduced strength due to corrosion or other chemical effects. The pressure housing may include gaskets, seals and

Other non-metallic parts, but these parts are not used as part of the pressure-bearing housing of the tested hydraulic components (see GB/T 19934.1).

This document does not apply to piping components (i.e. fittings, hoses, rigid pipes) specified in ISO 4413.Fatigue testing for piping components

See GB/T 26143, ISO 6803 and ISO 6605 for methods.

This document presents a general method for fatigue pressure evaluation of metallic pressure-bearing housings for hydraulic components. In addition, EN14359 for storage

Specific methods and test requirements are described in Fatigue Pressure Evaluation of Energy Equipment.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 17446 Vocabulary of Fluid Transmission Systems and Components (GB/T 17446-2012, ISO 5598.2008, IDT)

GB/T 19934.1 Fatigue Pressure Test of Hydraulic Transmission Metal Pressure Housing Part 1.Test Methods (GB/T 19934.1-

2021, ISO 10771-1.2015, IDT)

3 Terms and Definitions

The terms and definitions defined in GB/T 17446, GB/T 19934.1 and the following apply to this document.

3.1 rated fatigue pressure

During the rated life cycle, the randomly selected pressure-bearing shell is verified to be the highest pressure without failure with a given probability.

3.2 assurance level

The probability that the fatigue strength of a randomly selected sample is higher than the rated fatigue stress.

3.3 verificationlevel

The probability that the fatigue strength of a randomly selected sample is not lower than the cyclic test pressure.

3.4 ko

GB/T 42155 | GB/T 40565.2 | GB/T 40565.3 | GB/T 45452 | GB/T 14038 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 64 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5598.2008 · ISO 10771

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