The influence of the heat treatment time on the wetting angle of low temperature lead-free sealing glass

Abstract One of the most important evaluation criteria of sealing glass is its flow properties at the sealing temperature, especially the wetting ability between the glass and the sealing surface. It is of great practical importance to establish qualitative and quantitative relations between the wetting angle and the heat treatment time. With the fundamental theories of fluid mechanics, we have established a mathematical model of the wetting angle of the sealing flow as a function of time. Using the obtained model to simulate the actual process of glass flow, the calculated results were compared with measured experimental data. The results indicate that the model established in this report can accurately describe the change of the wetting angle with time.