Scanning Acoustic Microscope for Water-cooled Plate Welding Quality Inspection
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author：admin
source：Hiwave
time：2024-12-25
catogory：Industry News
Water-cooled plate is the core component of liquid cooling technology. Manufacturing a water-cooled plate with high thermal efficiency, excellent performance and relia……
Water-cooled plate is the core component of liquid cooling technology. Manufacturing a water-cooled plate with high thermal efficiency, excellent performance and reliable quality is the concern of radiator manufacturers.
The Importance of Water-cooled plates
Water-cooled plates, also known as liquid-cooled plates, are important components that make up a water-cooled radiator and are responsible for exchanging heat through liquid cooling. Water-cooled panels are equipped with internal runners, which are usually processed through advanced manufacturing processes such as friction welding, vacuum welding, etc. When electronic components are mounted on the surface of the water-cooled plate, a thermally conductive medium is applied between them to ensure heat transfer. The coolant flows through the water-cooled panels, driven by a water pump, entering at the inlet and exiting at the outlet, carrying away the heat generated by the electronic components.
Principles of water immersion SAM:
The ultrasonic C-scan inspection system detects the material through high-frequency sound waves, and its working principle mainly includes the following steps:
1: Ultrasonic emission: the ultrasonic probe in the equipment emits high-frequency acoustic wave signals to the welded joint to be inspected. Sound waves propagate in the medium, its frequency and wave speed determined by the physical properties of the material.
2: signal reflection and reception: the sound wave encounters defects within the material (such as pores, cracks) or interface, reflection will occur. The reflected acoustic signal is received by the probe and converted into an electrical signal.
3:Signal Processing and Imaging: After amplification and processing, a visual image is generated, usually using A-scan, B-scan, or C-scan to show the inside of the welded area.
4:Defect identification and analysis: By analyzing the intensity and waveform of the reflected signals in the image, the quality of the weld can be judged, including the type, size and location of the defect.
The C-scan image of water-cooled plates
XX Automotive used Hiwave’s scanning acoustic microscope to detect a number of poor weld defects during the welding process of water-cooling panels. This enabled engineers to repair the welds in time, ensuring the reliability of the cooling system and the safety of the battery. Scanning acoustic microscopy, as a highly efficient non-destructive testing technique, has shown excellent performance and wide application potential for water-cooled plate weld quality assessment.
