2016年3月8日星期二

Neodymium Permanent Magnets for Motor

Low carbon economy makes China permanent magnet material industry enter a new development height 

Low carbon environmental protection is what we always pursue. How about the relationship between our Low carbon economy and permanent magnet material?

Let's talk about the influence of low carbon economy to permanent magnet industry in China.

1. The strong demand of low carbon economy on PM motor stimulate the growth of magnetic materials new market

Motor is one of the main energy consumptions of modern economy. In the United States, the power consumption of the motors accounts for 63% - 70% of the domestic production electricity consumption, 23% of the total electric energy consumption. And the efficiency of many of the motors is even less than 50%, so improving the efficiency of the motors is obviously an effective energy saving measure. Neodymium magnet motor is a kind of representative high efficiency energy saving low carbon industrial products, as energy saving devices is widely used in all kinds of industrial transmission and rotating device, except for developing rapidly in traditional industries but also in the following areas in the future.

(1) New renewable energy: permanent magnet wind turbine The development of wind power motor becomes important fulcrum of rare earth magnet industry. Direct-drive PM wind turbine technology has entered a mature period, currently European and American market penetration is more than 25%, while it is only 10% in China. But the industry experts believe that in the future China's wind power motors, the permeability of direct-drive permanent magnet wind turbine will be more than that of the European and American developed countries, to become the mainstream of wind motor, it will directly pull the compound annual demand for China's high performance neodymium iron boron magnet materials and the increasing ratio will exceed 20%, the demand for NdFeB magnets material will reach 9600tons to 2014.

(2) The energy conservation and emissions reduction: Super high efficiency permanent magnet motor, speed regulation high efficiency PM motor Super high efficiency PM motors and speed regulation high efficiency motors are widely used in variable frequency electrical appliances industry and industrial production, becoming another focus of pulling rare earth permanent magnet industry demand. Take inverter air conditioner for example, dc inverter ac saving 15% - 30% than AC variable frequency ac, while the the market share of inverter air conditioner in China is only 10%, the market possession rate in Japan is more than 90% .If the annual growth of inverter air conditioners of our country in the future maintain an rate of 30%, to 2014 neodymium magnets used for inverter air conditioner brushless DC Motor will be 5825 tons.

Neodymium Permanent Magnet Segments for Motors









(3) Alternative energy sources: Permanent magnet motor used in new energy automobile, rail transit PM motor is the key component of new energy automobile, the future low carbon economy will drive the development of global new energy vehicles and explosive growth of small lightweight cars. It will at the same time drive the long-term needs of neodymium permanent magnet materials. New energy vehicles will be the important target market of magnetic materials, take Toyota prius for example, a hybrid electric vehicle (HEV) using NdFeB magnet materials about 2 kg, according to the global annual growth of 100 million, it will newly increase the demand of NdFeB materials 2000-3000 tons directly. According to the estimates of consultancy that by 2020 HEV vehicle will account for about 17% of the global car output, the direct incremental demand will reach 39270 tons. The lightweight automobile market will be another important market of the future of neodymium permanent magnets, every vehicle equipped with more than 40 motors, to calculate 50% magnet motor replacement of small and lightweight vehicles of year 2010, the demand for neodymium iron boron magnets will exceed 35000 tons.

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