Nowadays, people have higher and higher expectations for welding products, and the welding quality of products is becoming more and more important. How is welding quality tested?
Eddy current welding spot inspection is a non-destructive testing method that can be used to detect defects on metal surfaces, such as cracks or blemishes. These surface defects have high-frequency electromagnetic interactions and can be detected on request. The eddy current welding spot detection will neither damage nor pollute the surface, through the electromagnetic induction method to judge the actual size of the welding core, the electromagnetic resistance of the non-welding core area will be suddenly reduced.
Application of eddy current welding spot inspection - semi-finished products and parts inspection.
The frequency of eddy current inspection in the field of semi-finished products and parts inspection covers up to about 10 MHz and is used to check the metal for surface defects. There are a large number of different specifications of differential detection coils to choose from. Eddy current welding spot inspection In the application of semi-finished products such as metal wire, bar and pipe, the eddy current through the coil scheme is used to detect transverse defects and cavity defects, or the eddy current rotating probe scheme is used to detect surface longitudinal defects. Fixed probe solutions can be used to detect defects in important locations on components. The correct probe and sensor should be selected according to the inspection requirements and tasks to achieve defect resolution.
Application of eddy current welding spot detection -- metal detection
In metal detection, a single - or dual-frequency electromagnetic field is generated by the eddy current solder spot detection method, which is used to detect concealed metals, including small amounts (such as steel, iron, aluminum, copper, gold, silver). When an active sensor is used for metal object detection, the detection sensor emits a magnetic field. This creates an eddy current in the object being detected, which is itself an "induced" electromagnetic field that can be identified and evaluated by probes and sensors.
The above is about the "eddy current welding spot testing principle and application scenario" related introduction, Shanghai super robot non-destructive testing equipment belongs to the world's first-class level, and can customize personalized online non-destructive testing program.
Standard sensors and probes are generally used, and can also be customized according to demand.