Why choose a neodymium magnet factory in china?
Publish Time: 2024-07-26 Origin: Site
What are magnetic materials?
Magnetic materials are ancient and widely used functional materials. The magnetism of materials was known and applied by people as early as 3,000 years ago. In ancient times, people used natural magnets as compasses.
Development history of magnetic materials
Looking at the development history of magnetic materials in the world, it can be roughly divided into the following four stages:
1930s: The birth of aluminum-nickel-cobalt permanent magnets (AlNiCo). The characteristic of this material is that its operating temperature can reach above 600°C, making it the first choice for magnetic materials in high temperature environments.
Early 1950s: The emergence of ferrite magnets. This material has a high magnetic energy product and operating temperature, and is low in cost. It is widely used in various electronic devices.
Late 1960s: The advent of samarium-cobalt magnets (Sm-Co), including the first generation of rare earth permanent magnets SmCo5 and the second generation of rare earth permanent magnets Sm2Co17. This material has excellent corrosion resistance, rust resistance and high temperature resistance, and is suitable for occasions with high performance requirements.
Since the 1980s: the development of the third generation of rare earth permanent magnets, neodymium iron boron (Nd-Fe-B). This material is characterized by high magnetic energy product, small size and light weight, and has now become one of the most superior permanent magnetic materials.
Since 2000, the output value of rare earth magnets has exceeded that of ferrites for the first time, and this trend has continued to grow, making neodymium iron boron the protagonist of magnetic materials in the 21st century.
Application of modern magnetic materials
Magnetic materials are widely used in modern life. For example, permanent magnetic materials are used in motors, core materials in transformers, magneto-optical disks in storage, and magnetic recording floppy disks for computers. Magnetic materials can be divided into soft magnetic materials and hard magnetic materials according to the difficulty of demagnetization after magnetization.
Materials that are easy to demagnetize after magnetization are called soft magnetic materials, and materials that are difficult to demagnetize are called hard magnetic materials. Generally speaking, soft magnetic materials have smaller remanence, while hard magnetic materials have larger remanence.
As an important branch of metal functional materials, magnetic materials are one of the basic functional materials and are widely used in mineral processing, household appliances, medical and health care, automobiles, automatic control, information technology and other fields.
In addition, magnetic materials, as a clean energy source, have also received more and more attention in emerging fields such as energy conservation and environmental protection, new energy, electric vehicles, smart cities, etc., and have gradually been applied to military and defense fields such as robots, drones, aerospace, and satellite remote sensing, which is in line with the current direction of energy conservation, environmental protection and green development advocated by the country.
Current situation of magnetic materials market
At present, the world magnetic material market is clearly polarized. Due to high production costs, countries such as Europe and the United States have closed domestic magnetic material production plants and moved them to Asia, especially China. Global magnetic material production is mainly concentrated in Japan and China. Japan leads in technological innovation, while China is known for its huge production capacity and high market share.
China's magnetic materials industry has a significant development status and position in the world. Zhejiang Province occupies an important position in China's magnetic materials industry, with the number of enterprises and total industrial output value accounting for more than half of the country.
The magnetic materials industry belongs to resource- and labor-intensive manufacturing, with raw material costs accounting for more than 50%. China has the world's largest rare earth reserves and production, which has led European, American and Japanese companies to transfer permanent magnet material production to China for competition and cost considerations.
The main production sites of NdFeB permanent magnet materials are concentrated in Zhejiang Province and Shanxi Province. Ningbo, Zhejiang, has formed a large-scale NdFeB magnetic material industry cluster with its early production patents and cluster development advantages. Ningbo's total production of NdFeB magnetic materials accounts for 40% to 50% of the country, its product exports account for 60% of the country, and its global market share reaches 20%, making it an internationally renowned NdFeB production base and trade center.
About us
BMAG is a high-tech company based in Ningbo, China, specializing in the research, production, and development of rare earth magnets. We offer a wide range of magnetic solutions including sintered neodymium iron boron magnets, magnetic machinery, and assemblies. Our product lineup also includes bonded neodymium iron boron magnets, aluminum-nickel-cobalt magnets, SmCo magnets, ferrite magnets, and rubber magnets.
We are serious on quality management, we passed ISO 9001:2015 and IATF16949:2016. Our products are passed ROHS,REACH which are exported to different countries around the world,such as Russia,Germany,Italy,Turkey,USA, Brazil ,India,Japan，Korea and so on.
At BMAG, we prioritize customer satisfaction with a commitment to excellence in every aspect of our operations. Whether you are looking for neodymium, aluminum-nickel-cobalt, SmCo, ferrite, or rubber magnets, BMAG is your one-stop shop in the magnet industry. Visit bwmagnets.com for more information and discover why BMAG is your best choice for magnets. We look forward to doing business with you and fostering a successful partnership.