带涂层焊缝的电磁涡流检测

详细信息

Electromagnetic Eddy Current Inspection for Coated Welded Lines

摘要: 采用电磁涡流法对16MnR钢焊缝试件进行了涡流检测。得出在焊缝表面较平整情况下, 检测裂纹的能力同涂层厚度间的定性关系。渗透检测对比结果表明, 电磁涡流法在表面涂层平均厚度不大于500 μm时, 可检出各种形式焊缝表面的裂纹、气孔和咬边等缺陷。
- 电磁涡流检测 /
- 焊缝 /
- 涂层 /
- 裂纹
Abstract: 16MnR steel welded lines are tested with electromagnetic eddy current. The relation of the ability of crack testing and the coat thickness in an exteriorly clean weld was deduced. By the comparison with the penetrante test result, it shows that this measure can test diversified exterior flaws, such as cracks, pore and gnawing and so on, when the cote thickness is less than 500 μm.
- Electromagnetism Eddy current /
- Welded lines /
- Coat /
- Crack

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