Study on Mechanism of Heating Temperature Field of Aluminum Foil Seal

The theoretical basis for non-contact sealing detection is lacking for the sealing performance of aluminum foil sealing. First, simulation and analysis of heat transfer characteristics of aluminum foil seals in heating temperature field using ANSYS software. The temperature field image sealed by aluminum foil is a closed and uniform annular region with high temperature. In the temperature curve, the temperature is concentrated at 70~80 celsius. It has symmetry characteristics, and there are 2 high temperature peaks; the other 5 are unlooped or uneven thermal image aluminum foil seal failed. A comparative experiment was then carried out to collect infrared thermal images of different types of aluminum foil seals under electromagnetic induction heating. Experiments show that the surface temperature field distribution calculated by the three-dimensional finite element simulation is consistent with the experimental temperature-field distribution. According to the distribution characteristics of the thermal temperature field, it can be evaluated the state of the sealability of the aluminum foil seal, and it can provide theoretical support for further optimizing the automation degree of the non-contact sealability test.