海洋钢结构用TMCP钢焊缝的超声波检测

详细信息

Ultrasonic Testing for TMCP Steel Weld in Offshore Steel Structure

摘要: TMCP（热机械控制工艺）钢在轧制过程中，TMCP工艺对材料晶粒会造成影响，导致钢材声学性能发生变化。介绍了TMCP钢对焊缝超声波检测造成的影响，并通过制作TMCP钢超声波对比试块、校准超声波设备和现场应用三个方面来解决TMCP钢对焊缝超声波检测造成的影响，达到对焊缝缺陷的准确检测。
- TMCP钢 /
- TMCP对比试块 /
- 声速和折射角修正
Abstract: TMCP steel is widely used in offshore steel structures at present as its well strength and toughness. The acoustic property of TMCP steel is changed because of the grain size variation during the rolling process. This article introduces the influence to ultrasonic testing by TMCP technology, and also suggests the solution to amend the influence to achieve the accurate inspection for weld seam. The solution is based on the three ways, such as making the TMCP reference block, the calibration of ultrasonic equipment and adjusting in field application.
- TMCP steel /
- TMCP reference block /
- Correction of sound velocity and refraction angle

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