NB/T 11517-2024 English PDF

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NB/T 11517-2024: Nondestructive inspection methods and criterions for important load-bearing components of mining hoisting conveyance
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Basic data

Standard ID: NB/T 11517-2024 (NB/T11517-2024)
Description (Translated English): Nondestructive inspection methods and criterions for important load-bearing components of mining hoisting conveyance
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: D93
Classification of International Standard: 73.100.40
Word Count Estimation: 30,327
Date of Issue: 2024-05-24
Date of Implementation: 2024-11-24
Issuing agency(ies): National Energy Administration

NB/T 11517-2024: Nondestructive inspection methods and criterions for important load-bearing components of mining hoisting conveyance

---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.
Energy Industry Standards of the People's Republic of China ICS 73.100.40CCS D 93 Nondestructive testing methods and methods for important bearing parts of mining lifting containers Decision rules Nondestructive inspection methods and criteria for important load⁃bearing components of mining hoisting conveyance 2024-05-24 Release 2024-11-24 Implementation The National Energy Administration released

Table of contents

Preface...Ⅴ 1 Scope...1 2 Normative references ...1 3 Terms and Definitions 1 4 General requirements 2 4.1 Testing personnel 2 4.2 Selection of detection method 2 4.3 Operational Safety 2 5 Ultrasonic testing...2 5.1 Technical requirements for equipment and accessories 2 5.2 Testing requirements 3 5.3 Detection method 3 5.4 Classification of defects 5 5.5 Records 5 5.6 Judgment rules 5 5.7 Test Records and Reports 6 6 Magnetic Particle Testing...6 6.1 Technical requirements for equipment and accessories...6 6.2 Magnetic powder, carrier, magnetic suspension 7 6.3 Test piece 7 6.4 Magnetizing Current 8 6.5 Surface preparation 8 6.6 Detection Time 8 6.7 Detection Methods 8 6.8 Magnetization methods and requirements 9 6.9 Magnetic trace observation 11 6.10 Records 11 6.11 Retest 12 6.12 Demagnetization 12 6.13 Judgment Rules 12 6.14 Test Records and Reports 13 7 Principles for the division of nondestructive testing areas...13 7.1 Principles for the division of nondestructive testing areas for forgings and plates 13 7.2 Principles of division of nondestructive testing areas for shaft parts 17 Appendix A (Normative) Ultrasonic shear wave testing ...19 A.1 Overview 19 A.2 Probe 19 A.3 Detection sensitivity 19 A.4 Scanning method 19 A.5 Judgment Rules 19 Appendix B (Informative) Ultrasonic Testing Record Contents ...20 Appendix C (Informative) Ultrasonic Testing Report Sample 21 Appendix D (Informative) Magnetic Particle Inspection Record Contents 22 Appendix E (Informative) Sample Magnetic Particle Inspection Report ...23 Figure 1 Detection direction 3 Figure 2 Magnetic field indicator 8 Figure 3 Cheek plate detection area division diagram ...13 Figure 4.Division of the continuous board detection area...14 Figure 5 Middle plate inspection area division diagram...14 Figure 6 Division of outer panel inspection area...14 Figure 7 Main panel detection area division diagram ...15 Figure 8 Four-corner plate detection area division diagram ...15 Figure 9 Triangle plate detection area division diagram ...15 Figure 10 Main connecting rod detection area division diagram ...16 Figure 11 Auxiliary connecting rod detection area division diagram ...16 Figure 12 Connection and reversing fork detection area division diagram ...16 Figure 13 Peach-shaped ring detection area division diagram ...17 Figure 14 Connection link detection area division diagram ...17 Figure 15 Axis detection area division diagram ...18 Figure 16.Division of the boom detection area...18 Figure 17 Pin detection area division diagram ...18 Table 1 Judgment rules for butt welds ...5 Table 2 Judgment rules for forgings and plates 5 Table 3 Judgment rules for shaft parts...6 Table 4 Magnetic suspension concentration 7 Table 5 Classification of magnetic particle testing methods 9 Table 6 Magnetization requirements for axial current method and central conductor method...10 Table 7 Contact method magnetizing current value 10 Table 8 Judgment rules for forgings and plates 12 Table 9 Judgment rules for shaft parts...12 Table 10 Judgment rules for welded joints 13 Table A.1 Judgment rules for shaft parts 19 Table C.1 Ultrasonic test report sample 21 Table E.1 Sample magnetic particle inspection report 23

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 is required. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Coal Industry Association. This document is under the jurisdiction of the Coal Industry Coal Mine Special Equipment Standardization Technical Committee. This document was drafted by. China Coal Technology and Engineering Group Nanjing Design and Research Institute Co., Ltd., Shanxi Energy Conservation Center Co., Ltd., Shandong Taian Coal Mining Machinery Co., Ltd., Xuzhou Coal Mine Safety Equipment Manufacturing Co., Ltd., China University of Mining and Technology. The main drafters of this document are. Zhang Mei, Shi Aimin, Ning Hongzhen, Zheng Liben, Han Yanwei, Du Qingyong, Zhou Gongbo, Tan Tingshuai, and Liu Zhongli. Nondestructive testing methods and methods for important bearing parts of mining lifting containers Decision rules

1 Scope

This document specifies the general requirements, ultrasonic testing, and non-destructive testing of important load-bearing parts of mining lifting vessels (cages, skips, counterweights, etc.). Testing methods, magnetic particle testing methods, determination rules and principles for the division of non-destructive testing areas. This document is applicable to non-destructive testing of important bearing parts of mining lifting containers. The non-destructive testing of important load-bearing parts can be carried out for reference. This document is not applicable to coarse-grained materials such as austenitic stainless steel and grey cast iron.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 9445 Qualification and certification of non-destructive testing personnel GB/T 11345 Ultrasonic testing technology, testing levels and assessment for non-destructive testing of welds GB/T 12604.1 Nondestructive testing terminology Ultrasonic testing GB/T 12604.5 Nondestructive testing terminology Magnetic particle testing GB/T 23905 Test blocks for non-destructive testing and ultrasonic testing GB/T 23906 Ring test blocks for non-destructive testing of magnetic particle GB/T 23907 Test pieces for non-destructive testing - magnetic particle testing JB/T 6063 Materials for non-destructive testing of magnetic particle testing JB/T 8290 Nondestructive testing instruments Magnetic particle flaw detector JB/T 9214 Nondestructive testing - Type A pulse reflection ultrasonic testing system performance test method

3 Terms and definitions

The terms and definitions defined in GB/T 12604.1 and GB/T 12604.5 and the following apply to this document. 3.1 important load-bearing components The head and tail rope suspension devices of the lifting container, the suspension plates on the lifting container body, etc. are mainly used to bear the lifting load and are directly related to the lifting safety. Related parts. 3.2 Defect One or more lesions whose size, shape, orientation, location, or nature does not satisfy the determination criteria. 3.3 discontinuity An interruption (mutation, discontinuity) in the physical structure or shape of a material or workpiece. ......

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