2014年10月15日星期三

Permanent Magnet Motors Becoming Main Demanding Current of Future Motors

Neodymium Magnet Manufacturer – China Rare Earth Magnet Limited 

It is expected by Sino-Aviation Industry that, in 2012-2031, the average annual growth rate of air transport will reach 8%. And by 2013, the volume of passenger transportation will reach 2.1 trillion person-kilometers. To meet the demand of passenger transportation volume, in the next two decades, the number of civil airliners will be 5542, among which jumbo jets will be 4594, and regional aircrafts will be 951. Meanwhile, it is expected that in the next two decades, there will be 1052 airplanes out of commission. Therefore, Sino-Aviation has to replenish 4933 planes, of which 80% of the planes will be used to meet the demand of passenger volume, and 20% will replace decommissioned ones.
Analysis of permanent magnet Motors Applied to Aviation
1. Rare Earth Magnet DC Brushless Motors
Due to the unique advantage of rare earth brushless motors, its application velocity will speed up. Also, it has higher level development in function and performance.
2. Neodymium Magnet Deflection Torque Motor
This motors, in some angle range, can do quick movement with loads directly and aim at accurate position. In the limited deflection, it has great power, fast response, high reliability, small size and light weight. As a core of service system, this motor is highly accurately and reliable.
3. Neodymium Permanent Magnet Brush DC Motors
Brush DC Motors are now the most commonly used motors. Although it has some disadvantages, it plays an important role in systems and seeks technological progress with low cost, mature techniques and excellent characteristics. Magnet excitation can improve power density and improve tolerance with redundant forms. Analysis of Current Development Situation of PM Motors
With experience of producing PM motors and critical technology, Japan, Germany, USA, UK, Swiss and Sweden now control most high-end, precise technology and products of new-type permanent magnet, still having great influence on the development of global magnet. Japan, in particular, depends on its precise machining technology, having big advantage of small and medium-sized motors, leading the development of high-end and precise technology of magnets.
With the rapid development of information technology, most countries have entered in the technological and popular stage of industrial automation, office automation, household modernization, agricultural modernization and military modernization. As the important and basic component, demand of permanent magnet motors is increasing continuously, with the expanding application fields.
In 2013, with the fast development of new energy cars and intelligent household field, the global production of PM motors has exceeded 420million. As modernization gradually develops, the prospect of global neodymium magnet motor industry is promising.
Rare earth magnet industry is facing a big opportunity, with its proportion becoming higher and higher. In the energy-saving filed, the technology of new energy cars and inverted appliance will make great progress, thus bringing fast development to this industry.

China Rare Earth Magnet Limited
Tags: Permanent Magnet, Rare Earth Magnet, Neodymium Magnet

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