1、 Classification of commonly used magnets

1. Ferrite magnet. Due to the cheap materials, the price of ferrite is very low, and it is widely used in handbag packaging factories, speaker factories, and leather product factories.

2. Neodymium iron boron magnet. High cost-effectiveness, although its quantity is not as large as ferrite, it has the highest output value. It is involved in various industries, and Dahua Magneto Electric Company produces various precision and strong magnetic products, which are widely used in magnetic connectors, DC motors, robots, smart homes, Bluetooth earphones TWS and other fields.

3. Aluminum nickel cobalt magnets are more commonly used in products.

4. Samarium cobalt magnet. High cost, only used in some permanent magnet motors.

2、 The size of the magnetic force of commonly used magnets

1. Neodymium iron boron. The third-generation rare earth permanent magnet product is currently a type of magnetic material, known as strong magnet, strong magnet, permanent magnet, etc. by outsiders, with a magnetic energy product of 52 megagauss Oster.

2. Samarium cobalt. Magnetic force is similar to that of neodymium iron boron and samarium cobalt magnets, which can be processed into irregular shapes. The magnetic energy product is 26 megagauss Oster.

3. Aluminum nickel cobalt. It has weaker magnetic force than samarium cobalt, with a magnetic energy product of only 5.4 megagauss Oster

4. Ferrite. Ferrite and aluminum nickel cobalt have weak magnetic properties, with a magnetic energy product of only 3.6 megagauss Oster.

3、 Common high temperature resistance parameters of magnets

1. Aluminum nickel cobalt. It can withstand a working temperature of 500 ℃ and is a high-temperature resistant magnetic material.

2. Samarium cobalt. It is an ideal choice for working temperatures between 250 ℃ and 350 ℃.

3. Ferrite. The upper limit of the heat-resistant working temperature of ferrite is 300 ℃.

4. Neodymium iron boron. Neodymium iron boron is suitable for working temperatures between 80 ℃ and 230 ℃.

4、 Determine a neodymium iron boron strong magnet, please provide the following parameters in conjunction

1. The application of magnets: electroacoustic industry, electronic industry, magnetic application.

2. The shape of the magnet: disc shaped, ring shaped, square shaped, tile shaped, runway shaped, or custom shaped.

3. Dimensions of magnets: length, width, height, diameter, thickness, and corresponding tolerances.

4. The coating of magnets: zinc plating, nickel plating, gold plating, silver plating, epoxy resin, etc.

5. Magnetic requirements: Determine the material to be selected based on the specific performance and application of the magnet.