Скачать или смотреть Hyfindr Clips - How to weld on Bipolar plates explained - Cellform

In this Hyfindr Clips we discuss the welding process for the heat exchanger plates, highlighting the challenges of welding tiny areas (50 microns x 50 microns) together due to the lack of welding material on the plates. Laser welding is mentioned as a common strategy, emphasizing the importance of being process reliable to avoid damaging the plates. We describe a diagram showing channels and laser welding dots on the plate, explaining the need for 3D deep measuring to inspect the weld seam and dots.

The complexity of the welding process is further explained, considering the necessity of leakage welds for coolant channels and electrical contact welding in the flow field. The latter is crucial due to the significant energy flow through the plates, as the plates essentially form the anode and cathode of the stack. The alignment of plates in the stack is discussed, emphasizing the importance of maintaining the best shape for optimal energy transfer and minimizing deviations to prevent energy loss. The speaker notes the challenges in bridging the gap between theoretical design and practical implementation in creating these plates for larger stacks.