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GB/T 35367-2017 English PDF

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GB/T 35367-2017: X-ray radiography technique and quality classification for titanium butt weld joints on submersible
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Basic data

Standard ID GB/T 35367-2017 (GB/T35367-2017)
Description (Translated English) X-ray radiography technique and quality classification for titanium butt weld joints on submersible
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U05
Classification of International Standard 47.020.05
Word Count Estimation 10,184
Date of Issue 2017-12-29
Date of Implementation 2018-07-01
Regulation (derived from) National Standards Bulletin 2017 No. 32
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35367-2017: X-ray radiography technique and quality classification for titanium butt weld joints on submersible


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X-ray radiography technique and quality classification for titanium butt weld joints on submersible ICS 47.020.05 U05 National Standards of People's Republic of China Submarine titanium alloy butt weld X - ray inspection and Quality classification 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by China Shipbuilding Industry Corporation. This standard by the National Standardization Technical Committee submarine (SCA/TC306) centralized. This standard drafting unit. China Shipbuilding Industry Corporation 7225 Institute, China Shipbuilding Industry Corporation 702nd study Institute of Shanghai Ship Technology, China Classification Society. The main drafters of this standard. Wang Fu Xi, Zhao Xiaoxin, Lei Xiaowei, E Nan, Liu Zhaohui, Ding Bing, Shen Yinsheng, Guo Xiaohui, Hu Hongwei. Submarine titanium alloy butt weld X - ray inspection and Quality classification

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 nominalthickness The nominal thickness of the workpiece under inspection, regardless of material manufacturing bias and processing thinning. 3.2 Through the thickness of penetratedthickness 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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