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Home > News > High-performance NdFeB: The most magnetic permanent magnet material to date, China is the main producer of NdFeB in the world.
High-performance NdFeB: The most magnetic permanent magnet material to date, China is the main producer of NdFeB in the world.
High-performance NdFeB leads the development of future magnetic materials
High-performance up-and-coming talent
At present, magnetic materials are mainly divided into permanent magnet materials and soft magnets. The magnetic properties of permanent magnet materials can be permanently preserved, mainly including alloy permanent magnet materials represented by neodymium iron boron and ferrite permanent magnet materials. The magnetic properties of the soft magnetic body can be magnetized by an external action, but the magnetic properties are also easily lost.
NdFeB is a third-generation rare earth permanent magnet material composed of a large number of rare earth elements such as lanthanum, iron and boron. The proportion of lanthanum is 25% to 35%, and the proportion of iron is 65% to 75%. Boron accounts for about 1%. NdFeB has the advantages of high remanence density, high coercivity and high magnetic energy product, and is the most magnetic permanent magnet material to date. To get the full report of this article, please search for Leqing Think Tank.
NdFeB has a higher magnetic energy product than ferrite, and its magnetic force is 3-5 times that of ferrite. At the same time, its stability is strong and its magnetic force is relatively controllable. With the continuous development of the global new energy vehicle and robot industry, NdFeB is expected to become the main development direction of magnetic materials in the future.
According to the production process classification, NdFeB can be divided into sintered NdFeB and bonded NdFeB. Sintered NdFeB is powder metallurgy process, and the smelted alloy is made into powder and pressed in a magnetic field; NdFeB is made by extrusion of NdFeB magnetic powder with resin or rubber. Compared with sintered NdFeB, the bonded NdFeB is not easy to corrode, and the production difficulty is low, but the magnetic properties are worse than the sintered NdFeB.
In recent years, the production and sales of NdFeB in China have increased significantly. As of 2014, China's NdFeB production has reached 320 million kilograms. The production and sales volume is close to that of ferrite magnets, making it the fastest growing variety of all magnetic materials. . Baidu search "Leqing think tank", get more industry in-depth research report
Excellent selection of high performance NdFeB is more interesting
NdFeB is the most outstanding permanent magnet in today's performance, and its performance is also different. The most advanced of these is high-performance NdFeB. The high-performance NdFeB permanent magnet material is a sintered NdFeB permanent magnet material which is made by the rapid-coagulation method and has a coercive force Hc(j KOe) and a maximum magnetic energy product (BH)max (MGOe) greater than 60. The magnetic properties, coercivity, remanence density, temperature characteristics and other properties are much better than the general NdFeB permanent magnet materials.
High-performance NdFeB is widely used in new energy vehicles, inverter air conditioners, energy-saving elevators, maglev trains, intelligent robots, wind power generation, etc., which can greatly reduce the size of application products, reduce the quality of products and provide more High efficiency, so it is highly regarded.
At present, the global high-performance NdFeB accounts for 30%~40% of the total NdFeB production, and the output is increasing year by year. In 2012, there were about 38,000 tons of high-performance NdFeB production in the world, and the output in 2015 reached 46,000 tons. The annual average growth rate is over 6.5%. With the continuous development of global new energy vehicles and robotics industry, the high-performance NdFeB industry is expected to maintain a high-speed development trend.
Production capacity to transfer high-end NdFeB supply to China
The expiration of foreign patents, the shift of the focus of NdFeB production to China
NdFeB was invented by Sumitomo of Japan in 1983 and applied for patents in Europe and Japan. Subsequently, General Motors of the United States applied for the NdFeB patent in the United States. Due to patent issues, Japanese-based producers have long dominated the world's production of NdFeB. In recent years, with the expiration of patents in Japan and the United States, the production and sales of NdFeB in China have begun to increase rapidly, becoming one of the major regions for the production of NdFeB in the world.
In addition, the world's NdFeB producers are gradually starting to deploy to China. At present, there are no large NdFeB producers in the United States, and all of their production capacity has been transferred to China. Finland's two major sintered NdFeB producers, Neorem Finland and Germany VAC, merged in 2007 and began to deploy capacity in China. At the same time, Japan is the world's No. 1 NdFeB producer, and its production capacity is also shifting to China.
At present, China's NdFeB production has accounted for more than 90% of the world's NdFeB permanent magnet materials production. Among them, high-performance NdFeB permanent magnet materials have been increasing in the world, and are now close to 60%. With the strengthening of foreign NdFeB production supervision and cost increase, the proportion of NdFeB production capacity in China is expected to increase further in the future. It can be said that China's NdFeB production determines the global supply trend.
Rapid capacity expansion, low-end NdFeB overcapacity
In recent years, China's NdFeB capacity has expanded rapidly, and its billet capacity has expanded from 0.8 million tons in 2000 to over 400,000 tons in 2014. At the same time, the capacity utilization rate is very low, and the capacity utilization rate in 2013 and 2014 is less than 30%. At present, China's NdFeB excess capacity is concentrated in low-end products, and low-end NdFeB production accounts for nearly 80% of total production.
At the same time, due to the low entry threshold of low-end NdFeB production, the production capacity of the industry is relatively scattered, and small and medium-sized NdFeB producers with a capacity of less than 3,000 tons have become the main suppliers. Due to the low price of low-end NdFeB in recent years, many small businesses have shut down. Capacity concentration has increased.
High-performance up-and-coming talent
At present, magnetic materials are mainly divided into permanent magnet materials and soft magnets. The magnetic properties of permanent magnet materials can be permanently preserved, mainly including alloy permanent magnet materials represented by neodymium iron boron and ferrite permanent magnet materials. The magnetic properties of the soft magnetic body can be magnetized by an external action, but the magnetic properties are also easily lost.
NdFeB is a third-generation rare earth permanent magnet material composed of a large number of rare earth elements such as lanthanum, iron and boron. The proportion of lanthanum is 25% to 35%, and the proportion of iron is 65% to 75%. Boron accounts for about 1%. NdFeB has the advantages of high remanence density, high coercivity and high magnetic energy product, and is the most magnetic permanent magnet material to date. To get the full report of this article, please search for Leqing Think Tank.
NdFeB has a higher magnetic energy product than ferrite, and its magnetic force is 3-5 times that of ferrite. At the same time, its stability is strong and its magnetic force is relatively controllable. With the continuous development of the global new energy vehicle and robot industry, NdFeB is expected to become the main development direction of magnetic materials in the future.
According to the production process classification, NdFeB can be divided into sintered NdFeB and bonded NdFeB. Sintered NdFeB is powder metallurgy process, and the smelted alloy is made into powder and pressed in a magnetic field; NdFeB is made by extrusion of NdFeB magnetic powder with resin or rubber. Compared with sintered NdFeB, the bonded NdFeB is not easy to corrode, and the production difficulty is low, but the magnetic properties are worse than the sintered NdFeB.
In recent years, the production and sales of NdFeB in China have increased significantly. As of 2014, China's NdFeB production has reached 320 million kilograms. The production and sales volume is close to that of ferrite magnets, making it the fastest growing variety of all magnetic materials. . Baidu search "Leqing think tank", get more industry in-depth research report
Excellent selection of high performance NdFeB is more interesting
NdFeB is the most outstanding permanent magnet in today's performance, and its performance is also different. The most advanced of these is high-performance NdFeB. The high-performance NdFeB permanent magnet material is a sintered NdFeB permanent magnet material which is made by the rapid-coagulation method and has a coercive force Hc(j KOe) and a maximum magnetic energy product (BH)max (MGOe) greater than 60. The magnetic properties, coercivity, remanence density, temperature characteristics and other properties are much better than the general NdFeB permanent magnet materials.
High-performance NdFeB is widely used in new energy vehicles, inverter air conditioners, energy-saving elevators, maglev trains, intelligent robots, wind power generation, etc., which can greatly reduce the size of application products, reduce the quality of products and provide more High efficiency, so it is highly regarded.
At present, the global high-performance NdFeB accounts for 30%~40% of the total NdFeB production, and the output is increasing year by year. In 2012, there were about 38,000 tons of high-performance NdFeB production in the world, and the output in 2015 reached 46,000 tons. The annual average growth rate is over 6.5%. With the continuous development of global new energy vehicles and robotics industry, the high-performance NdFeB industry is expected to maintain a high-speed development trend.
Production capacity to transfer high-end NdFeB supply to China
The expiration of foreign patents, the shift of the focus of NdFeB production to China
NdFeB was invented by Sumitomo of Japan in 1983 and applied for patents in Europe and Japan. Subsequently, General Motors of the United States applied for the NdFeB patent in the United States. Due to patent issues, Japanese-based producers have long dominated the world's production of NdFeB. In recent years, with the expiration of patents in Japan and the United States, the production and sales of NdFeB in China have begun to increase rapidly, becoming one of the major regions for the production of NdFeB in the world.
In addition, the world's NdFeB producers are gradually starting to deploy to China. At present, there are no large NdFeB producers in the United States, and all of their production capacity has been transferred to China. Finland's two major sintered NdFeB producers, Neorem Finland and Germany VAC, merged in 2007 and began to deploy capacity in China. At the same time, Japan is the world's No. 1 NdFeB producer, and its production capacity is also shifting to China.
At present, China's NdFeB production has accounted for more than 90% of the world's NdFeB permanent magnet materials production. Among them, high-performance NdFeB permanent magnet materials have been increasing in the world, and are now close to 60%. With the strengthening of foreign NdFeB production supervision and cost increase, the proportion of NdFeB production capacity in China is expected to increase further in the future. It can be said that China's NdFeB production determines the global supply trend.
Rapid capacity expansion, low-end NdFeB overcapacity
In recent years, China's NdFeB capacity has expanded rapidly, and its billet capacity has expanded from 0.8 million tons in 2000 to over 400,000 tons in 2014. At the same time, the capacity utilization rate is very low, and the capacity utilization rate in 2013 and 2014 is less than 30%. At present, China's NdFeB excess capacity is concentrated in low-end products, and low-end NdFeB production accounts for nearly 80% of total production.
At the same time, due to the low entry threshold of low-end NdFeB production, the production capacity of the industry is relatively scattered, and small and medium-sized NdFeB producers with a capacity of less than 3,000 tons have become the main suppliers. Due to the low price of low-end NdFeB in recent years, many small businesses have shut down. Capacity concentration has increased.
