Demand for NdFeB magnets in IT and traditional applications
Pubdate: 2019-12-31 09:02 pageviews:
(l) VCM application field VCM motor is also called swing motor or voice coil motor, which is mainly used in hard disk drives.
The VCM manufacturing center is in Niki. Among them, TDK has a large VCM production scale and consumes nearly 4,000 tons of high-performance neodymium-iron-boron permanent magnet materials. Production companies are monopolized, and domestic companies have a smaller share in this area. In 2008, according to statistics from Luo Yang, a member of the IEEE Permanent Magnet Committee, China's VCM demand for high-performance neodymium-iron-boron permanent magnet materials was about 1,250 tons. Affected by the global economic crisis in 2009, the global demand for hard disks fell sharply, leading to a significant decline in VCM demand for high-performance neodymium-iron-boron permanent magnet materials (powerful magnets). However, with the recovery of the world economy, global hard disk demand has gradually increased. VCM's demand for high-performance NdFeB permanent magnet materials has also increased. According to the prediction of China Magnetic Materials and Device Industry Association, the demand for high-performance NdFeB permanent magnet materials in China's VCM market will reach 2,270 tons by 2014.
(2) Consumer electronics application areas Consumer electronics industry applications include laser disc players, optical disc drives, and mobile phones.
Laser disc player is a DVD player. Depending on the wavelength of the laser it uses, there are two types of front and back: traditional DvD players and Blu-ray DVDs. Player. Before the introduction, China's high-performance NdFeB permanent magnet materials should be applied to traditional DVD players. Blu-ray DVD players were affected by Blu-ray patents and basic components patents of NdFeB permanent magnet materials, and were basically imported high-performance NdFeB permanent magnets. Monopolized by magnetic material manufacturing enterprises. According to statistics from China Economic Network, China ’s output of DvD players in 2008 was about 107 million units. Based on the use of 0. oo5kg high performance NdFeB permanent magnet material per DvD player, the demand for high performance NdFeB permanent magnet material in China's DVD player market is about 550 tons. Considering the popularization of traditional DVD players and the price of Blu-ray DVD players, the total output of the laser disc player market will maintain a steady and rising trend in the next few years.
High-performance NdFeB permanent magnet materials for mobile phones are mainly used in mobile zoom motors. According to statistics from the Ministry of Industry and Information Technology, China is the world's largest mobile phone production base. In 2008, mobile phone output was about 560 million units, accounting for more than 40% of the world's total. Although affected by the financial crisis, overall mobile phone production is still increase. Based on the calculation that each mobile phone needs to use 0.025kg of high-performance neodymium-iron-boron permanent magnet materials, in 2008, the demand for high-performance neodymium-iron-boron permanent magnets in China's mobile phone applications was about 1,000 tons. In the next few years, stimulated by the promotion of 3G networks and the integration of domestic operations, China's mobile phone output will continue to grow. Other domestic market speakers and headphones: At the same output power and sound quality, the volume of speakers using high-performance NdFeB permanent magnet materials can be made very small. At present, high-performance neodymium-iron-boron permanent magnet materials have been applied to the speakers and earphones of advanced players.
(3) CNC machine tools: High-performance NdFeB permanent magnet materials are mainly used in servo motors for CNC machine tools.
NC machine tools use permanent magnet direct drive servo motors, combined with power electronics technology and microelectronic control technology, can greatly improve production efficiency and promote mechatronics integration. Medical equipment: With the improvement of medical technology and the development of minimally invasive technology, the trend of refinement of medical equipment has become increasingly obvious, and the requirements for the size of the drive motor have become smaller and smaller, and the weight has become lighter. Permanent magnet synchronous drive motors have the advantages of small size, energy saving, low-speed direct drive, speed regulation through frequency changes, etc., and are particularly suitable for the development of miniaturization and energy saving of medical equipment. Therefore, the development prospects of high-performance NdFeB permanent magnet materials in the medical device industry are very broad.
