Ndfeb Magnet
N42 Sintered Ndfeb neodymium block magnets Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. Shanghai Young Magnet Co.,Ltd is the one of Magnet Manufacturer in China that have engaged in magnetic material for 10 yesars, with annual production capacity is 800Tons. Our main products are Permanent Sintered Neodymium-Ferrum-Boron (NdFeB) magnet, Samarium- Cobalt (SmCo) magnet, Aluminum-Nickel-Cobalt (AlNiCo) magnet and related assemblings.
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NdFeB Permanent Magnets, NdFeB Disc Magnets, NdFeB Rectangular Shape Permanent Magnets, Rectangular Shape Magnets, Disc Magnets, Round Bars Magnets, Power Magnets, U Shape Oriented Magnets, Cylindrical Magnets Axially Oriented, Speedometer Ring Magnets, Manufacturer, Supplier, Exporter, Satara, Maharashtra, India. The theoretical (BH)max value of N55 NdFeB magnet is 512kJ/m3(64MGOe), and most of magnet manufacturer can make N52 magnet now. The (BH)max of N52 already achieved 90% of theoretical limit. The question in the mind of many users – is there any grade stronger than N52 magnet? N55 is the most powerful grade available currently for commercial use.
Neodymium Magnet Price Trend
Wanna know neodymium magnet price trend recently? Just check China rare earth metal Pr-Nd price on the internet, it can only be said that it was on a rocket like the Chang’e-5 probe.
On November 24, the price of praseodymium and neodymium metal rose by 37,000 yuan per ton compared to the previous day. On November 25, the price per ton rose by 50,000 yuan to 557,500 yuan/ton. Compared with the price at the beginning of November, the increase was 33.5%.
What Is Ppraseodymium Neodymium Metal?
Neodymium praseodymium metal, Pr-Nd for short, is a rare earth metal that is very easily oxidized. It is also an important raw material for neodymium iron boron permanent magnets.
The Proportion of Rare Earth Metals In The Production of Magnets
The cost of rare-earth materials is relatively high on permanent magnet production (some as high as 88.28%, the lowest is more than 50%), so midstream manufacturers of rare-earth permanent magnet are more affected by the fluctuation of upstream rare earth prices. However, large manufacturers in the industry can reduce the impact of rare-earth price fluctuations on their business by purchasing raw materials on a large scale, or by extending the industry chain upstream to ensure the purchase of rare-earth materials at a highly competitive price.
Current Downstream Magnet Demand
Compared with other magnetic materials, NdFeB permanent magnet materials have outstanding advantages in magnetic properties, and have the characteristics of high magnetic energy product, coercivity and energy density.
Therefore, neodymium iron boron magnets with energy saving, high efficiency, small size and light weight can be widely used in emerging technology fields such as wind power generation, new energy vehicles and auto parts, energy-saving inverter air conditioners, energy-saving elevators, robots and intelligent manufacturing, and mobile terminal applications. For example, in 2019, the rapid growth of the TWS wireless headset market has caused the demand for NdFeB magnet to soar.
At the beginning of the year, the epidemic slowed down some of the market demand, but the demand for many medical products doubled several times. As a kind of respirator that can replace, control or change human physiological breathing, the voice coil motor respirator is widely used in respiratory failure caused by various reasons, and occupies a very important position in the field of modern medicine. Magnetic materials as an essential component on voice coil motor, the growth in demand for ventilators has greatly boosted the demand for magnetic materials.
Although the world was still struggling to deal with COVID19 epidemic, market demand continued to recover. Demand from major customers, which had been interrupted at the beginning of the year, resumed in the third quarter.
Current Upstream Rare Earth Inventory
According to statistics from Asian Metal Database, 38 Chinese PrNd mischmetal producers’ annual production capacity was 78020 T. China’s PrNd mischmetal producers’ inventory down by 22.9% MON in Oct.
Combined with the above analysis, the current round of rare earth price increases are mainly caused by the concentrated outbreak of demand and the serious shortage of spot supply.
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History of Neodymium Magnet Price Trend
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Beginning in 2010, due to national regulatory policies, continuous industry mergers and reorganizations, and the growth of market demand, rare earth raw materials have been in short supply and prices have risen sharply.
Just as aftershocks continued after a major earthquake, since then, rare earth prices have fluctuated frequently, which has become a common concern for the global industry. For example, in 2019, after the U.S.-China trade war and President Xi Jinping’s visited to a rare-earth magnet manufacturer, the price of rare earth magnets once again rose rapidly.
China Magnet Manufacturer
China Magnets Source has the production lines for the whole process of NdFeB production, including blank production, machining, and finished product plating, and has mastered the core technologies of blank production and grain boundary penetration technology. At the same time, we have 10,000 tons of sintered NdFeB blank production capacity, which allows us to provide cost-effective high-performance rare-earth permanent magnets to our customers in a long-term and stable manner.
The price fluctuation of raw materials affects the production cost of magnet manufacturers, makes inventory management more difficult, and affects the unit price of magnets. China Magnets Source attaches great importance to the inventory management of raw materials, and actively takes advantage of its capital to maintain a reasonable and sufficient stock of raw materials. We have many years of business cooperation with major suppliers and have established stable supply channels for rare earth raw materials. If you have any needs for magnets, please feel free to contact us by below table for the latest magnet price.
Neodymium iron boron powerful magnet can conduct electricity, and among all permanent magnet materials, it has a higher conductivity. Some people will ask, can we electrify neodymium iron boron? Can demagnetization occur after the neodymium magnet is electrified?
If direct current is applied to the neodymium magnet, a ring-shaped magnetic field will be generated. Generally, the current is not large and has little effect on the magnetic field of the permanent magnet itself.
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A simple estimation shows that when the current in a DC wire is 1 A, the magnetic field intensity generated at 1 mm away from the wire is about 10-4 Tesla, which is about 3 orders of magnitude smaller than the magnetic field intensity of ordinary permanent magnet, so it has little influence on the original magnetic field of permanent magnet. The influence of the magnetic field generated by the current on the original magnetic field is related to the measurement position, the shape of the magnet, the original magnetization direction and the current loading direction. Generally speaking, at a certain magnetic field strength measurement point, if the magnetization direction of the annular magnetic field generated by the current is consistent with that of the original magnetic field, and the magnetic field strength increases after superposition, the direction of the magnetic domain may be changed to increase the original magnetic field (when the permanent magnet is not fully magnetized); if the direction is inconsistent, the magnetic field strength will decrease.
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In addition, the loading current will cause the temperature to rise, which may demagnetize the permanent magnet.
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If the alternating current is added, the eddy current will be generated in the permanent magnet due to the alternating magnetic field. For example, in NdFeB permanent magnet synchronous motor, the eddy current loss of permanent magnet synchronous rotor with diameter of 100 mm can reach 10 ^ (- 2) ~ 10 ^ (2) watts. Due to the high conductivity and high temperature coefficient of neodymium magnet, it is easy to cause the motor performance degradation and even the risk of demagnetization due to the temperature rise.