In many areas of industrial production, high temperature tape is a key auxiliary material, and its performance directly affects the quality and production efficiency of the product. Among them, the highest temperature that can be tolerated and the difference between long-term and short-term temperature tolerance are the core issues that many companies pay most attention to when choosing high temperature tape.
The maximum temperature tolerance of high-temperature tape
Different types of high-temperature tapes have different maximum temperatures that they can withstand. Taking the common polyimide high-temperature tape as an example, it can usually withstand temperatures up to 260°C. This tape is made of polyimide film as the base material and coated with high-performance silicone. It is widely used in fields such as electronics and aerospace that require extremely high temperature resistance of materials. In the manufacturing process of circuit boards, high-temperature welding and other processes are required. Polyimide high-temperature tape can remain stable in such a high-temperature environment without melting, deformation or degumming, ensuring the smooth production of circuit boards.
The temperature resistance of PET high-temperature tape is relatively low. The long-term temperature resistance is generally 100-120°C, and the short-term temperature resistance can reach 140-200°C. It is based on PET film and has good dimensional stability, thermal stability and chemical stability. It plays an important role in some industrial scenarios where the temperature requirements are not particularly extreme, such as the production and assembly of ordinary electrical appliances and the pasting of nameplates.
The difference between long-term and short-term temperature tolerance
Long-term temperature tolerance
Long-term temperature tolerance refers to the highest temperature at which the high-temperature tape can maintain its various performance indicators basically stable under continuous use. For example, if a high-temperature tape with a long-term temperature resistance of 150°C is placed in an environment above 150°C for a long time, its viscosity will gradually decrease, and the substrate may age and become brittle, which will eventually cause the tape to lose its proper function. On the production line of automobile engines, the high-temperature tape used to fix parts needs to withstand the heat generated by the engine running for a long time, which requires the tape to be able to maintain stable performance in a long-term high-temperature environment.
Short-term temperature tolerance
Short-term temperature tolerance refers to the highest temperature that the high-temperature tape can withstand in a short period of time (usually ranging from a few minutes to a few hours). At this temperature, although the performance of the tape may change to a certain extent, it can still basically return to its original performance after the temperature returns to normal. For example, in the wave soldering process of electronic products, the circuit board will instantly pass through the high-temperature area. At this time, the high-temperature tape used needs to have good short-term high-temperature resistance, and can not fall off or be damaged under the short-term high-temperature impact, so as to ensure the smooth progress of the welding process. Generally speaking, the short-term temperature resistance of high-temperature tapes will be higher than the long-term temperature resistance by a certain range. For example, some tapes have a long-term temperature resistance of 200°C, but a short-term temperature resistance of 250°C or even higher.
Understanding the maximum temperature resistance of high-temperature tapes and the difference between long-term and short-term temperature resistance is crucial for enterprises to correctly select and use high-temperature tapes. Only by accurately matching the temperature resistance of high-temperature tapes according to actual production needs can their role be fully utilized to ensure efficient and stable production.
