Method for detecting pseudo soldering of welding spots
The invention provides a method for detecting pseudo soldering of welding spots, and belongs to the technical field of printed circuit board welding spot nondestructive testing. Firstly, the effective average temperature, namely the effective temperature, of a welding spot to be detected in the whol...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a method for detecting pseudo soldering of welding spots, and belongs to the technical field of printed circuit board welding spot nondestructive testing. Firstly, the effective average temperature, namely the effective temperature, of a welding spot to be detected in the whole heating process is calculated, and then the effective temperature range of the qualified welding spot and the effective temperature range of the pseudo welding spot are obtained through a plurality of standard test pieces of the qualified welding spot and a plurality of standard test pieces of the pseudo welding spot; and finally, comparing the effective temperature of the to-be-detected welding spot with the effective temperature range of the qualified welding spot and the effective temperature range of the pseudo welding spot, and judging the welding spot type of the to-be-detected welding spot. According to the method, the influence of factors such as environment operation difference and temperature measuremen |
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