The weather resistance performance analysis of Q460NH weather-resistant steel plate includes the following aspects:

1. Atmospheric corrosion resistance: Q460NH weather-resistant steel plate has excellent atmospheric corrosion resistance and can be used for a long time under harsh climate conditions without failure.

2. Self-healing ability: When the surface is damaged, Q460NH weather-resistant steel plate will form a dense oxide protective layer to continue to resist further corrosion and achieve self-healing effect.

3. Weather resistance performance stability: As time goes by, the weather resistance performance of Q460NH weather-resistant steel plate will not significantly decrease and maintain a relatively stable performance level.

4. Environmental adaptability: Adapt to various climate and environmental conditions, such as humidity, high temperature, cold, etc., and can maintain good appearance and performance for a long time.

5. Weathering resistance: Q460NH weather-resistant steel plate can resist erosion caused by natural factors such as strong winds and ultraviolet radiation, and are not easily deformed, cracked or faded.

6. Durability: It has a long service life, reduces maintenance costs and frequency, and is suitable for engineering projects that require long-term use.

7. Performance verification: Its weather resistance performance is usually evaluated through laboratory testing and field application verification to ensure compliance with relevant standards and requirements.