Inspection & Measurement Systems

应用

Application Notes

Eddy Current Weld Inspection

The Importance of Weld Inspection

The quality of welds is becoming increasingly important as customer expectations rise. Products and components are expected to be of a high quality and not to fail unexpectedly.

Such failures have large financial and social consequences that can often be avoided with the proper inspection techniques.

Inspecting welds can also reduce costs by detecting defects in the early stages of manufacture, reducing the cost of customer returns and extending the life of components by detecting and correcting any defects.
Eddy Current Non Destructive Testing is a reliable, quick and inexpensive way to carry out preventative maintenance and ensure safety. Staveley's range of eddy current equipment has a world-wide reputation for its reliability and accuracy, while their service and support ensure that you make the most of your equipment.

Eddy Current Testing on Welds

In welding inspection there is a need to detect surface breaking defects. For magnetic material e.g. carbon steel, generally magnetic particle inspection is used. However, eddy current inspection offers a number of advantages:

• No consumables used - e.g. ink & contrast paint.
• Ability to test areas with poor access.
• No surface preparation required - e.g. paint doesn't need to be removed, saving time in preparation for the inspection and in any recoating of surfaces .
• Improved sensitivity - ability to detect smaller defects using specially developed Staveley Weld Probes.

Weld Probes

Staveley Instruments has developed the Weld Probe specifically to check welds for cracks and corrosion. Examples of areas where it is currently used include:

• Offshore platforms
• Buildings
• Bridges
• Amusement park rides
• Ships, boats, submarines etc.
• Cranes
• Utility poles
• Aircraft

Weld Probes have been designed to be extremely hard-wearing so that they can handle the rough weld surface while still picking up any faults in the weld.

NECP-1152L 45° Stainless Shaft Weld Probe

Products used for this application

涡流探头

涡流探头包含Nortec和NDT工程的各种获得性品牌。我们提供10000多种标准的和用户定制型涡流探头、标准参考试块及配件。

Nortec 2000D

Nortec 2000D+涡流探伤仪具有以下功能:50 Hz~12 MHz的频率范围、单频或双频操作、使用方便的数字式电导率,还可支持旋转扫查器。因此这款设备成为多种航空航天材料无损检测应用的理想探伤仪。

Nortec 500

轻便的Nortec 500系列涡流探伤仪汇集了包含内置平衡线圈和VGA输出接口在内的各种功能。其不同的型号还具有电导率、涂层厚度、旋转扫查器兼容性及双频等特性。

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