1. Technical Specifications for Gold-plated permanent magnet:
1.1 (Material Composition):
Base Material: Usually rare earth magnets such as neodymium iron boron (NdFeB) or samarium cobalt (SmCo), which are known for their high magnetic properties.
Surface Treatment: Gold plating. Gold has excellent chemical stability, providing corrosion resistance and electrochemical stability while maintaining a bright appearance.
1.2 (Magnetic Properties):
Residual Induction, Br: Typical values ​​are in the **1.2-1.5 Tesla** range, which means that the magnet can generate a very strong magnetic field.
Coercivity, Hc): About 12-30 kOe, which means that the magnet remains magnetic in a strong external magnetic field.
Maximum Energy Product, BHmax: Typical values ​​are 30-52 MGOe, indicating a very high energy density.
Operating Temperature: Gold-plated NdFeB magnets typically operate in the range of 80°C to 150°C. Samarium Cobalt magnets are more temperature resistant, up to 300°C.
1.3 Dimensions and Shapes:
Common sizes include sheet, ring, cylindrical, cubic, etc., which are customized according to application requirements.
Dimension tolerance: ±0.05 mm, ensuring application in scenarios with high precision requirements.

1.4 Corrosion Resistance:
Metal plating (especially gold) significantly enhances the corrosion resistance of the magnet, preventing oxidation and environmental factors.

2. Applications:
2.1 Electronics and Electrical Applications:
Precision Sensors: Due to the high and stable magnetic field, gold-plated permanent magnets are often used in high-precision sensors, such as accelerometers, magnetoresistive sensors, etc.
Speakers and Headphones: The high magnetic flux density allows it to be used to improve the sound quality of speakers and high-end headphones, especially in designs that require small size and high power.
Micro Motors: In micro motors and stepper motors, super strong magnets can improve efficiency and reduce power loss.

2.2 **Medical Devices:
MRI (Magnetic Resonance Imaging): High-performance magnets are often used to generate strong magnetic fields in magnetic resonance imaging equipment.
Implanted Devices: Due to the biocompatibility of gold, gold-plated magnets are often used in implanted devices in the body, such as control magnets for pacemakers.

2.3 Scientific Research:
Particle Accelerators: These magnets are used to control particle trajectories.
NMR Research: Uses its strong magnetic field to generate a consistent magnetic environment for NMR experiments.

2.4 Aerospace and Defense:
Guidance Systems: Magnets are used in guidance systems for missiles and satellites.
Power Plants: Provides a better power-to-weight ratio in efficient engines.

2.5 Jewelry and Luxury Goods:
-Gold-plated magnets are often used in luxury goods or jewelry decorations, such as the strong magnetic clasps used in high-end watches.

3. Advantages:
High Magnetic Energy Density: Relative to volume, it has a very high magnetic energy density, which can greatly improve the efficiency of the device.
Corrosion Resistance: The gold plating makes it stable in humid environments and prolongs its service life.
Biocompatibility: The gold plating makes gold-plated permanent magnet suitable for use in the biomedical field.