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GB/T 11260-2023: Method for eddy current testing of round steel
Status: Valid GB/T 11260: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11260-2023 | English | 189 |
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3 days [Need to translate]
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Method for eddy current testing of round steel
| Valid |
GB/T 11260-2023
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| GB/T 11260-2008 | English | 359 |
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3 days [Need to translate]
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Round steel -- The inspection method for eddy current test
| Obsolete |
GB/T 11260-2008
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| GB/T 11260-1996 | English | 239 |
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2 days [Need to translate]
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Round steel--The inspection method for pass type eddy current test
| Obsolete |
GB/T 11260-1996
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| GB 11260-1989 | English | RFQ |
ASK
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3 days [Need to translate]
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Cold-drawn round steel--Pass type eddy current testing method
| Obsolete |
GB 11260-1989
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PDF similar to GB/T 11260-2023
Basic data | Standard ID | GB/T 11260-2023 (GB/T11260-2023) | | Description (Translated English) | Method for eddy current testing of round steel | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H26 | | Classification of International Standard | 77.040.20 | | Word Count Estimation | 10,131 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 11260-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11260-2023: Method for eddy current testing of round steel---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.
ICS 77.040.20
CCSH26
National Standards of People's Republic of China
Replace GB/T 11260-2008
Eddy current testing method for round steel
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 11260-2008 "Eddy Current Flaw Detection Method for Round Steel". Compared with GB/T 11260-2008, except for structural adjustments and
In addition to editorial changes, the main technical changes are as follows.
a) Added general requirements for testing (see Chapter 5);
b) The detection methods and classifications have been modified (see 6.1, 5.1 of the.2008 edition);
c) Added content that the magnetizing current of the magnetic saturation device should be continuously adjustable, and the current and frequency of the demagnetization device should be continuously or step-by-step adjustable (see
6.2.2);
d) Added rotating detection technology method (see 6.3);
e) Changed the signal amplitude fluctuation value (see 6.3.2, 5.3.2 of the.2008 version);
f) Added requirements for surface coverage of round steel by rotating probes (see 6.3.3);
g) Added array detection technology (see 6.4);
h) Added provisions for array detection of artificial defect processing (see 7.4.1.3, 7.4.2.3);
i) Added content requirements for the general principles of detection systems (see 8.1);
j) Added requirements for the difference between the highest amplitude and the lowest amplitude of each artificial defect in the comparison sample (see 9.1.3);
k) Added requirements for residual magnetism after demagnetization treatment (see 9.1.6);
l) Added requirements for equipment parameter verification (see 9.2);
m) Added requirements for exceeding the alarm gate signal and whether it is qualified (see 10.3).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Iron and Steel Industry Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. Northeast Special Steel Group Co., Ltd., Jiangyin Xingcheng Special Steel Co., Ltd., Fushun Special Steel Co., Ltd.
Co., Ltd., Gangyan Nak Testing Technology Co., Ltd., Baowu Special Metallurgical Co., Ltd., and Metallurgical Industry Information Standards Research Institute.
The main drafters of this document. Shao Changlu, Luo Yuandong, Wang Lijuan, Zhang Jianwei, Jiang Yimin, Dong Li, Wang Xiyuan, Wu Shuoyang, Qi Xiaodong, Liu Guanglei,
Xue Jianzhong, Guo Dongxu, Wang Yongfeng, Li Xuyang, Zhu Guoqing.
The previous versions of the documents replaced by this document are as follows.
---First published as GB/T 11260-1989 in 1989, first revised in.1996;
---The second time in.2008, when revised, it was incorporated into GB/T 17990-1999;
---This is the third revision.
Eddy current testing method for round steel
1 Scope
This document specifies the testing principles, general requirements, testing methods, comparison samples, testing systems, testing procedures, and testing methods for round steel eddy current testing.
Result evaluation and test report.
This document is suitable for eddy current testing of surface and near-surface defects on round steel with a diameter of 2mm~100mm (including steel wire). Other specifications are available
Follow this document for execution.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 9445 Qualification and certification of non-destructive testing personnel
GB/T 12604.6 Non-destructive testing terminology Eddy current testing
GB/T 14480.1 Non-destructive testing instruments Eddy current testing equipment Part 1.Instrument performance and inspection
GB/T 14480.2 Non-destructive testing instruments Eddy current testing equipment Part 2.Probe performance and inspection
YB/T 145 Steel pipe flaw detection comparison sample artificial defect size measurement method
YB/T 4083 Comprehensive performance testing method of automatic eddy current flaw detection system for steel pipes
3 Terms and definitions
The terms and definitions defined in GB/T 12604.6 apply to this document.
4 Detection principle
When a round steel with defects on the surface or near the surface passes through a coil excited by an alternating current, the eddy current induced on the surface of the round steel will cause distortion.
This change changes the impedance of the coil, causing the electrical signal generated in the coil to change. After signal processing, the defect information can be obtained.
Display images, electrical signals, sound and light alarms, records, etc. According to the amplitude and phase of the defect signal, the defect can be analyzed and judged, and then the defect can be completed.
Inspection of paired round bars.
5 General requirements
5.1 General
When conducting eddy current testing in accordance with this document, the supplier and the buyer should indicate the testing method in the contract or agreement, combined with 7.4.3, Table 1 and (or)
Table 2 determines the quality level.
5.2 Testing personnel
Personnel engaged in eddy current testing of round steel should participate in training in accordance with GB/T 9445 or corresponding documents and obtain an eddy current testing qualification certificate
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