Can Aluminum Invisible Profile used to connect phenolic duct panels withstand high temperatures of 120-150°C? Here is the detailed analysis:
1. High-temperature Resistance of Phenolic Duct Panels
Phenolic duct panels exhibit excellent high-temperature resistance, typically usable in the range of -200°C to 200°C for short-term use and 140°C to 160°C for long-term use. They are non-combustible when exposed to fire, and instead of melting or softening at high temperatures, only the surface carbonizes. Thus, within 120-150°C, phenolic panels maintain stable performance without significant damage or degradation, providing a reliable base for connections.
2. High-temperature Resistance of Aluminum Invisible Profiles
Pure aluminum has a melting point of approximately 660°C, and common aluminum alloys typically melt above 500°C.
The aluminum oxide film on the surface acts as an excellent thermal insulator, stable up to 1500°C, which prevents aluminum from melting even under short-term high temperatures.
Although Aluminum Invisible Profiles are not pure aluminum or simple alloys, their primary component is aluminum, often combined with surface treatments (e.g., anodization) to form a protective oxide layer. This gives them sufficient high-temperature resistance: within 120-150°C, the profiles will not melt or deform significantly, maintaining their mechanical properties and connection functionality.
3. Practical Considerations for Applications
While both materials individually withstand 120-150°C, the connection method and materials between the profile and phenolic panel are critical. An irrational connection design or low-temperature-resistant adhesives/sealants may cause loosening or detachment of the joint under high temperatures, compromising structural stability.
Conclusion
In principle, Aluminum Invisible Profiles can withstand 120-150°C when connecting phenolic duct panels, but ensure that the connection technology and auxiliary materials are also rated for such temperatures to guarantee long-term reliability.
