GB/T 11345-2013 Translated English of Chinese Standard. (GBT 11345-2013, GB/T11345-2013, GBT11345-2013): Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessmenthttps://www.chinesestandard.net, 18 avr. 2016 - 55 pages This standard specifies the techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials with thickness greater than or equal to 8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 ~ 60 degree Celcius. It is primarily intended for use on full penetration welds where both the welded and parent material are ferritic. |
Table des matières
3 | |
Scope | 6 |
Terms Definitions and Symbols | 7 |
Principle | 8 |
Requirements for Personnel and Equipment | 9 |
Testing Volume | 13 |
Scanning Zone | 14 |
Parent Metal Testing | 15 |
Testing Techniques | 19 |
Testing Report | 20 |
Annex A Normative Testing Levels for Various Types of Welded Joints | 23 |
Annex B Normative Tandem Testing | 34 |
Informative Technical Parameters of Equipment | 38 |
Normative Calculation of Actual Refraction Angle of Curved Surface Parts | 42 |
Annex E Normative Setting of Time Base and Sensitivity | 47 |
Annex F Normative Transmission Correction | 53 |
Testing Levels | 17 |
Expressions et termes fréquents
Acceptance level 2(AL2 adjustment angle beam probes angles Probe positions attenuation calibration block coupling loss curved surface dead zone disk-shaped reflector edition F and G frequency full skip distance GB/T Grinding Arc Probe horizontal distance incidence point indications Transverse indications indications using angle JB/T L-scans N-scans T-scans level 3(AL3 Longitudinal indications Transverse longitudinal wave modified see Chapter Non-destructive Testing number of scans number Total number oscilloscope parent material point of probe positions Scanning zone Probe angles Probe Probe positions Scanning pulse pulse repetition frequency reference block reference level refraction angle Required number Total scan for longitudinal scan for transverse scan using straight Scanning zone width sensitivity setting side-drilled hole sound beam angle special agreement specified square wave straight beam probe test block tested workpiece testing surface testing techniques testing volume transmission correction transverse wave ultrasonic path distance Ultrasonic Testing written testing procedure zone width Probe