In Line Phased Array Inspection of Encapsulated Battery Structural Adhesives
Inline phased array testing maps structural adhesive wet-out and void formation through metal pack enclosures in real time at production line speeds.
Gel Time Tracking
Meaning
Industrial measurement technique determines the point at which a thermosetting resin transitions from a liquid to a solid. Employing gel time tracking ensures that the potting compounds used to secure battery cells are processed within their active window. It prevents the assembly of parts after the material has become too stiff to flow.
Viscosity Profile
Recording the resistance to flow over time provides a clear picture of the chemical reaction speed. During gel time tracking, the rise in temperature from the exothermic reaction is also monitored. This data allows for the optimization of oven temperatures or mixing ratios.
Production Quality
Consistency of the resin batch is verified by comparing the measured curve against a known standard. If the gel time tracking indicates a reaction that is too fast, the material may crack due to internal stress. Conversely, a reaction that is too slow will delay the next stage of manufacturing.
This tool is standard for maintaining a high throughput in high-volume cell production lines. Engineers use the data to adjust the catalyst levels in the mixture.
Environmental Influence
Impact of ambient humidity and temperature on the curing process must be accounted for in the factory setting. Accurate gel time tracking identifies when seasonal changes require a shift in the chemical formulation. The process remains a standard check in every adhesive application step.