One. How to repair the concave appearance of copper alloy gates in the courtyard.
1、Use a vacuum cleaner with negative pressure to suck up the depressions.
Use a vacuum cleaner with negative pressure to remove the depressions. This method is suitable only for thin sheet metal courtyard copper doors. It is not suitable for thicker sheet metal.

2、For thicker copper sheets, high-strength magnets can be used for adhesion.
Using a high-strength magnet, due to the hollow space in the courtyard copper door, a strong magnet can be placed inside the hollow area. The external side can use a magnetic wire with weaker magnetism to guide the magnet to the recessed area. Then, a high-strength electromagnet can be used externally to attract and lift the copper plate with a thickness of approximately 1mm.
3、Utilize hydraulic systems for powerful extraction.
Weld multiple copper branches at the concave areas of the copper door to act as stress points. Use a hydraulic system or a wheel arrangement to apply strong pulling force, which can lift the copper plate from the concave areas.
4. Smooth out the repaired depressions by grinding.
Use a grinder to smooth out repaired depressions. Pay particular attention to areas with curves or edges, ensuring they are consistent with the overall aesthetic of the door. If welding has been performed, remove the welding copper first, then further smooth and level the surface.
Two. What should I do if the automatic copper door cannot close properly?
1、Root cause analysis
The copper door installed at the entrance of the courtyard is no longer able to open and close automatically. This is usually due to interference from motion detectors that are designed to sense movement.
2、Failure Symptoms
After the automatic induction copper door is fully opened, the door leaf cannot be closed normally. Sometimes, the door leaf immediately opens after being closed, other times it is partially closed or almost fully closed, and sometimes it even automatically opens while in the closed state.
3、Solutions
based on the above analysis, targeted solutions are necessary. If there is flowing material, it should be removed; if there is reflected light, it should be treated on the reflecting surface to avoid interference; and if there is unstable light, it should be replaced with stable light sources such as incandescent lamps. If these issues are resolved and the automatic copper door switch still malfunctions, the corresponding sensor must be replaced.