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GB/T 41960-2022: Leg mating unit
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GB/T 41960-2022: Leg mating unit

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ICS 83.140.99 CCSG47 National Standards of People's Republic of China Leg docking buffer device Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 2 5 Structure, specification and scope of application 2 5.1 LMU structure 2 5.2 LMU specifications and scope of application 3 6 mark 4 7 Technical Requirements 5 7.1 Appearance 5 7.2 Dimensions and tolerances 5 7.3 Performance 5 8 Test method 7 8.1 Appearance 7 8.2 Dimensions and tolerances 7 8.3 Performance 7 9 Inspection rules 8 9.1 Batch formation and sampling 8 9.2 Inspection items and frequency 9 9.3 Judgment rule 9 10 Labeling, packaging, transportation and storage 9 Appendix A (informative) Spike cone receptor size 10 Appendix B (Informative) Structural Dimensions of Sand Valve 11 Appendix C (Normative) HE Bearing Capacity Deviation Test Method 12 C.1 Test equipment and tooling 12 C.2 Sample Conditioning 12 C.3 Test step 13 C.4 Data processing 13 C.5 Test report 13 Appendix D (Normative) VE Bearing Capacity Deviation Test Method 14 D.1 Test equipment 14 D.2 Sample conditioning 14 D.3 Test step 14 D.4 Data processing 15 D.5 Test report 16

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is sponsored by the National Rubber and Rubber Products Standardization Technical Committee Rubber Miscellaneous Subcommittee (SAC/TC35/SC7) Focus on. This document is drafted by. Heng Rubber Technology Co., Ltd., Offshore Oil Engineering Co., Ltd., East China Survey and Equipment of China Power Construction Group Design and Research Institute Co., Ltd., Shenzhen Offshore Oil Engineering Subsea Technology Co., Ltd., Hengwei Inspection and Testing Certification (Hebei) Group Co., Ltd. The main drafters of this document. Liu Baoquan, Li Huailiang, Ma Meiqin, Li Xinchao, Jia Xianlin, Tian Jiande, Li Wei, Yu Huafeng, Wang Baosen, He Linnan, Wang Shuo, Sun Jianbang, Yin Ting. Leg docking buffer device

1 Scope

This document establishes the structure, specification and marking method of butt-leg buffering devices, specifies the appearance quality, size, performance, and inspection, Requirements for marking, packaging, transportation and storage, describes the test method for internal elastic buffers. This document is applicable to the declaration of conformity of the product by the manufacturer of the butt joint cushioning device of the legs used when the floating structure is installed, or As the basis for signing a trade contract between the manufacturer and the purchaser, it can also be used as the basis for certification by the certification body. Knot with elastic buffer structure The structure separation buffer device shall be implemented according to this document.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber GB/T 529 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens) GB/T 712 Structural steel for ships and ocean engineering GB/T 1591 Low-alloy high-strength structural steel GB/T 1682-2014 Single-sample method for the determination of low temperature brittleness of vulcanized rubber GB/T 1804-2000 General tolerances Tolerances of linear and angular dimensions without tolerances GB/T 3512 Hot air accelerated aging and heat resistance test of vulcanized rubber or thermoplastic rubber GB/T 3672.1-2002 Tolerances of Rubber Products Part 1.Dimensional Tolerances GB/T 6403.4 Rounding and chamfering of parts GB/T 7759.1 Determination of compression set of vulcanized rubber or thermoplastic rubber - Part 1.At room temperature and high temperature GB/T 7760 Determination of Adhesive Strength of Vulcanized Rubber or Thermoplastic Rubber to Hard Sheets 90° Peeling Method GB/T 7762 Vulcanized rubber or thermoplastic rubber resistance to ozone cracking static tensile test GB/T 11345 Ultrasonic testing technology, testing level and evaluation for non-destructive testing of welds GB/T 14684-2011 Construction sand GB/T 19804-2005 General dimensional and geometric tolerances of welded structures GB/T 26951 Non-destructive testing of welds Magnetic particle testing GB 50661-2011 Welding Code for Steel Structures JT/T 722-2008 Technical conditions for anti-corrosion coating of steel structures of highway bridges JTS/T 209 Code for anti-corrosion construction of waterway engineering structures SY/T 5108-2014 Proppant performance test method for hydraulic fracturing and gravel packing operations

3 Terms and Definitions

The following terms and definitions apply to this document. ...