Post welding inspection of box columns in steel structure processing.
1. Appearance and dimensional inspection.
2 Ultrasonic testing
2.1 Design requirements: Full penetration welds should undergo ultrasonic testing in accordance with GB11345 standard.
2.2 The level of welds shall be in accordance with the design specifications.
2.3 The first level weld seam should be 100% inspected, and the qualification standards are: B-level standard, and II-level qualified; The inspection ratio for second level welds is 20%, and the qualification standards are B level standard and III level qualified.
1. Appearance and dimensional inspection.
2 Ultrasonic testing
2.1 Design requirements: Full penetration welds should undergo ultrasonic testing in accordance with GB11345 standard.
2.2 The level of welds shall be in accordance with the design specifications.
2.3 The first level weld seam should be 100% inspected, and the qualification standards are: B-level standard, and II-level qualified; The inspection ratio for second level welds is 20%, and the qualification standards are B level standard and III level qualified.
