Over the years, the production technology and equipment level of rare earth permanent magnet materials in China have been rapidly improved and improved, and the quality and magnetic properties of Permanent magnets have been improved rapidly, which has promoted the development of industrial applications. For example, the Sc furnace is continuously improved, the thickness of the Sc sheet is controlled at 0.3-0.4 mm, the precipitation of Q-Fe is suppressed, the photo-crystal refinement of 2:14:1, and the capacity of the Sc furnace is gradually expanded from 50 kg to 600 kg to 1000 kg, thereby reducing energy consumption. Reducing operators can help reduce costs.

In addition, from the disclosure of patent technology in rare earth permanent magnet materials industry in China in recent years, China's rare earth permanent magnet materials technology has also developed rapidly. The number of patented technologies published each year has increased from 64 in 2005 to 303 in 2017. 

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