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GB/T 11809-2021: Test method of weld of fuel rod for PWR - Metallographic examination and radiographic testing
Status: Valid GB/T 11809: Evolution and historical versions
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| GB/T 11809-2021 | English | 519 |
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Test method of weld of fuel rod for PWR - Metallographic examination and radiographic testing
| Valid |
GB/T 11809-2021
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| GB/T 11809-2008 | English | 599 |
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Test method of weld of fuel rod for PWR -- Metallographic examination and radiographic testing
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GB/T 11809-2008
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| GB/T 11809-1998 | English | 359 |
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Metallographic examination for weld seam of nuclear fuel rod used in PWR
| Obsolete |
GB/T 11809-1998
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| GB/T 11809-1989 | English | RFQ |
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Metallographic examination of nuclear fuel rods weld seam
| Obsolete |
GB/T 11809-1989
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PDF similar to GB/T 11809-2021
Standard similar to GB/T 11809-2021 GB/T 10266 GB/T 25448 GB/T 11813 Basic data | Standard ID | GB/T 11809-2021 (GB/T11809-2021) | | Description (Translated English) | Test method of weld of fuel rod for PWR - Metallographic examination and radiographic testing | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F48 | | Word Count Estimation | 28,285 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11809-2021: Test method of weld of fuel rod for PWR - Metallographic examination and radiographic testing
---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.
Test method of weld of fuel rod for PWR - Metallographic examination and radiographic testing
ICS 27.120
CCSF48
National Standards of People's Republic of China
Replace GB/T 11809-2008
Inspection method for welds of PWR fuel rods
Metallographic inspection and X-ray inspection
Released on 2021-10-11
2022-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Metallographic inspection 4
5 X-ray radiographic inspection methods 9
6 Inspection report 13
Appendix A (informative) General fuel rod structure diagram 14
Appendix B (Normative) Metallographic Sample Sampling Method 15
Appendix C (informative) Etching method 18
Appendix D (informative) Detection and photographic magnification 19
Appendix E (Normative) Measurement of effective penetration S value 20
Appendix F (Normative) The calculation method of the minimum transillumination thickness of the semi-compensated photographic method 22
Appendix G (informative) Transillumination layout 23
Appendix H (Informative) Compensation Method for X-ray Radiographic Inspection of Fuel Rod Welds 24
Foreword
This document is in accordance with GB/T 1.1-2020 "Guidelines for Standardization Part 1.Structure and Drafting Rules of Standardization Documents".
To be drafted.
This document replaces GB/T 11809-2008 "Methods of Metallographic Inspection and X-ray Radiographic Inspection of Welds of PWR Fuel Rods", and
Compared with GB/T 11809-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Amend the term "girth weld penetration" to "cladding girth weld penetration" (see 3.1,.2008 edition 3.1), "girth weld penetration depth"
"depthofthemeltedzoneofringwelding" is modified to "depthofthemelted zone of ring welding
zone" (see 3.2,.2008 version 3.3), "leastthicknessofsoundpartofweldzone" is modified to "minimum
thicknessofsoundpartofweldzone" (see 3.5,.2008 version 3.5);
b) Add the terms and definitions of "compact zone length" and "V-shaped groove" (see 3.7, 3.8);
c) The metallographic inspection content for pressure resistance welding welds has been added to the metallographic inspection method (see Chapter 1, 4.5.2.3, 4.5.3.1, 4.6.2);
d) The sandpaper specifications are revised to P120~P2400 (see 4.2.6, 4.2.5 of the.2008 edition);
e) Add the requirements for metallographic samples (see 4.4);
f) The metallographic sampling content is adjusted to Appendix B, which combines the longitudinal sample sampling of the upper end girth weld and the sealing weld joint and the lower end girth weld
The figure (see 4.4.1, 4.4.2 of B.1,.2008 edition), adds the sampling method of pressure resistance welding metallographic weld samples, and follows the appendix
The order has been adjusted (see Appendix B, 4.4 of the.2008 edition);
g) GB 16357 is replaced by GBZ 117 (see 5.2, 5.2 of the.2008 edition);
h) Modify the qualifications of X-ray imaging inspectors (see 5.3, 5.3 of the.2008 edition);
i) Added the method of making semi-compensated photographic compensation block (see 5.4.7.2), X-ray film haze requirements (see 5.4.5), density measurement
Quantity error requirements (see 5.4.6) and the calculation method of the length of a transillumination (see 5.5.1), etc.;
j) The requirements for industrial X-ray machines (see 5.4.1, 5.4.1 in the.2008 edition) and the brightness requirements of the film viewer screen (see 5.4.4,.2008) have been revised.
5.4.4 of the year edition), the sensitivity requirements of the image quality meter (see 5.5.4, 5.5.3 of the.2008 edition), geometric unsharpness calculation formula (see
5.5.5,.2008 version 5.5.4), scattered ray protection requirements (see 5.5.6,.2008 version 5.5.5), film density range (see
5.5.8,.2008 version 5.5.7) and transillumination corner requirements (see 5.6.3,.2008 version 5.6.3) and other content;
k) Consolidate and improve the contents of X-ray inspection reports and records (see 6.2,.2008 edition of 6.2)
l) Modify the temperature of the thermal dyeing method to 450℃±50℃ (see Table C.1, Table B.1 of the.2008 edition)
m) Delete the measurement diagram of effective penetration when there is a single pore defect (see Figure C.4, Figure C.5, and Figure C.6 in the.2008 edition);
n) Increase metallographic sample detection and photographing magnification (see Appendix D);
o) Add appendix F calculation method of minimum transillumination thickness for semi-compensated photographic method (see appendix F);
p) Add appendix H fuel rod welding seam X-ray photography inspection compensation method (see appendix H).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed and managed by the National Nuclear Energy Standardization Technical Committee (SAC/TC58).
This document was drafted by. China National Nuclear Jianzhong Nuclear Fuel Element Co., Ltd.
The main drafters of this document. Fan Shaohua, Cao Hui, Yuan Ye, Dai Qiang, Ma Haitao, Zhou Xi, Huang Jie, Huang Fan.
The previous releases of this document and the documents it replaced are as follows.
---GB 11809-1989, GB/T 11809-1998;
---GB 11851-1989, GB/T 11851-1996;
--- When revised in.2008, GB/T 11809 and GB/T 11851 were merged into GB/T 11809-2008;
---This is the second revision after the merger in.2008.
PWR fuel rod weld inspection method, metallographic inspection and
X-ray inspection
1 Scope
This document describes the metallographic inspection and X-ray inspection methods for welds of PWR fuel rods (hereinafter referred to as fuel rods).
The metallographic inspection method in this document is applicable to the fusion welding of zirconium alloy fuel rods welded by electron beam and tungsten inert gas protection.
Inspection of penetration, defects and microstructure of samples of seams (including girth welds and sealed welds). Also suitable for zirconium bonding by pressure resistance welding
Inspection of the dense area of welds welded by gold fuel rods. The thin film etching method is only applicable to Zr-Sn alloy fuel that uses electron beam welding
Bar weld inspection.
The weld penetration depth and defects of the zirconium alloy guide tube in the fuel assembly and the metallographic inspection of the weld obtained by other welding methods can also be referred to
implement.
The X-ray inspection method in this document is applicable to the inspection of fuel rod girth welds and sealing welds, and the control of PWR fuel assemblies
Circumferential welds of rods, combustible poison rods, neutron source rods and guide tube components, and other stack-type similar fuel rods can also be implemented by reference.
2 Normative references
The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations
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 3375 Welding Terminology
GB/T 6394 Method for determination of average grain size of metals
GB/T 12604.2 Non-destructive testing terminology Radiographic testing
GB 18871 Basic Standards for Ionizing Radiation Protection and Radiation Source Safety
GB/T 19348.1-2014 Non-destructive testing industrial radiographic film Part 1.Classification of industrial radiographic film systems
GB/T 19802 Minimum requirements for non-destructive testing industrial radiographic film viewers
GBZ 117 Radiation protection requirements for industrial X-ray inspection
3 Terms and definitions
The following terms and definitions defined in GB/T 3375 and GB/T 12604.2 apply to this document.
3.1
Penetrationoftheringwelding
Sh
The welding thickness of the cladding tube and the end plug (see Figure 1).
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