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‌Q: How to Clearly Define Magnet Procurement Requirements

A：

Q: What is Magnetic Energy Product?

A: The ‌Magnetic Energy Product‌ refers to the product of the magnetic flux density (BdBd) and the demagnetizing field strength (HdHd) at a specific point on the demagnetization curve.

The ‌Maximum Magnetic Energy Product‌, denoted as (BH)max(BH)max reresents the highest value of the magnetic energy product achievable in a material. It is a critical parameter ofr evaluating the performance of permanent magnets.

Q:What is Magnetic Flux Density?

A: Magnetic Flux Density, also known as ‌magnetic induction‌ or ‌B-field‌ (symbol: B), quantifies the strength of a magnetic field. It is defined as the amount of magnetic flux per unit area perpendicular to the direction of the magnetic field.

Saturation Magnetic Flux Density, abbreviated as ‌Bs‌ (symbol: Bₛ), refers to the maximum magnetic flux density achievable in a magnetic material. Beyond this point, further increases in the external magnetic field strength (H) will not significantly raise the material's magnetization, as it has reached its magnetic saturation limit.

Q: What is Magnetisering Force ?

A: Magnetisering Force(H), refers to the strength of magnetic field.

Q: What is Magnetomotive Force (MMF)?

A: Magnetomotive force (MMF), also known as magnetic pressure or magnetic potential, is denoted by the symbol FM. It refers to the external driving force that generates a magnetic field. The SI unit of MMF is the ampere (A). However, in practical applications, it is commonly expressed as the product of electric current and the number of coil turns (ampere-turns, A·t).

Q: Loudspeakers such as mobile phones, televisions, speakers, and headphones are typical representatives of acoustic devices.

A: Dongguan Spring Magnets & Electronics Co., Ltd. was established in 2012 and is located in the core area of the Guangdong-Hong Kong-Macao Greater Bay Area, and two factories in Zhejiang and Huizhou.We are specialized in the research, development, manufacturing and sales of sintered NdFeB, permanent ferrite, speakers and peripheral products，The company's products are directly or indirectly supplied to domestic and foreign speaker and audio manufacturers, motor and electrical appliance manufacturers, providing long-term and stable services to our customers with high quality, high performance, and high efficiency, and deeply exploring the technology and industrial value chain, aiming to create greater value for customers. At present, our products involve speakers, cars, TVs, computers, communications, household appliances, toys and other industries. We welcome domestic and abroad customers and devote to serve you the best.

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