The magnets used in magnetic gift boxes are typically made from neodymium, iron, and boron, creating what is commonly known as neodymium magnets or rare-earth magnets. Neodymium magnets are known for their strong magnetic properties and are widely used in various applications, including packaging. Here's an overview of how neodymium magnets used in magnetic gift boxes are made:

1. Raw Materials Preparation:

   - Neodymium magnets are made from a mixture of neodymium, iron, and boron powders. These powders are carefully proportioned to achieve the desired magnetic properties.

   - Additional elements or additives may be introduced to enhance the magnet's properties and stability during manufacturing.

2. Sintering:

   - The mixed powders are compacted into the desired magnet shape using specialized molds or presses. This compacted material is known as a "green" magnet.

   - The green magnets are then sintered in a high-temperature furnace. Sintering involves heating the green magnets to a temperature near their melting point. This process fuses the powder particles and transforms the material into a solid magnet.

3. Machining and Shaping:

   - After sintering, the magnets may undergo further machining processes to achieve precise dimensions and shapes. This can include cutting, grinding, and drilling.

4. Coating and Surface Treatment:

   - Neodymium magnets are susceptible to corrosion, so they are typically coated with a protective layer. Common coatings include nickel, zinc, epoxy, or other materials that provide a barrier against moisture and oxidation.

   - The coating also enhances the magnets' durability and stability.

5. Quality Control and Testing:

   - The manufactured magnets undergo rigorous quality control checks to ensure that they meet the desired magnetic properties and performance standards.

   - Various tests are conducted, including measurements of magnetic strength, dimensional accuracy, and coating integrity.

6. Assembly into Magnetic Closures:

   - The magnets are then integrated into the design of the magnetic gift boxes. One magnet is typically embedded in the lid (cover) of the box, while the corresponding magnet is placed in the base.

   - The magnets are positioned to align when the box is closed, creating a secure magnetic closure.

It's important to note that the production of neodymium magnets involves specialized equipment and processes due to the materials' unique characteristics. Neodymium magnets are known for their exceptional strength but can be brittle and susceptible to breakage if mishandled. The manufacturing process ensures that the magnets are carefully produced to achieve the desired properties while maintaining their structural integrity.