GB/T 35367-2017X-ray radiography technique and quality classification for titanium butt weld joints on submersible (English PDF)
潜水器钛合金对接焊缝X射线检测及质量分级
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 29, 2017
Implementation date
July 1, 2018
Scope
GB/T 35367-2017 is the English-translated version of 潜水器钛合金对接焊缝X射线检测及质量分级.
GB/T 35367-2017 is the Chinese standard "X-ray radiography technique and quality classification for titanium butt weld joints on submersible".
Its scope clause reads: This standard specifies the submersible titanium alloy butt welding X-ray photography of the basic requirements of personnel and equipment, X-ray radiograph Law and quality classification.
This standard applies to the outer diameter of not less than 500mm, wall thickness 5mm ~ 110mm deep submarine titanium alloy butt weld X-ray inspection Test, the other ship with a titanium alloy structure weld radiographic testing can refer to use.
Its clauses include terms and definitions; staff qualification and radiation protection.
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Document preview — GB/T 35367-2017
National Standard of the People's Republic of China
- ICS
- 47.020.05
- Classification
- U 05
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 staff qualification and radiation protection
1 Scope
This standard specifies the submersible titanium alloy butt welding X-ray photography of the basic requirements of personnel and equipment, X-ray radiograph
Law and quality classification.
This standard applies to the outer diameter of not less than 500mm, wall thickness 5mm ~ 110mm deep submarine titanium alloy butt weld X-ray inspection
Test, the other ship with a titanium alloy structure weld radiographic testing can refer to use.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Industrial X - ray inspection radiological protection requirements
GB/T 9445 non-destructive testing personnel qualification and certification
GB/T 11533 standard logarithmic visual acuity chart
GB/T 12604.2 Non-destructive testing - Radiographic testing
GB 18871 ionizing radiation protection and radiation source safety standards
GB/T 19348.1-2014 Non-destructive testing of industrial radiographic films - Part 1 Classification of industrial radiographic film systems
JB/T 7902 nondestructive testing linearity quality meter general specification
3 Terms and definitions
GB/T 12604.2 defined and the following terms and definitions apply to this document.
3.1 Nominal thickness
The nominal thickness of the workpiece under inspection, regardless of material manufacturing bias and processing thinning.
3.2 Through the thickness of
The nominal thickness of the material in the direction of radiation. When transilluminating, the transillumination thickness is the sum of the nominal thicknesses of the layers of material that have passed.
3.3 Round defects roundflaw
Aspect ratio of no more than 3 pores, slag inclusions and tungsten and other defects.
3.4 Strip defects stripyflaw
Aspect ratio greater than 3 pores, slag inclusions and tungsten and other defects.
4 staff qualification and radiation protection
4.1
Personnel engaged in titanium alloy weld ray inspection should understand the nature of titanium alloy, titanium alloy welding process and easy to produce the types of defects.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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