This newspaper (Fuyang reporter station Luo Binghao Wang Fangfang correspondent Chen Jianhua) If you have taken the Shanghai Maglev train built with German technology, you will be pleasantly surprised by the feeling of speeding up to 430 kilometers per hour. Today I want to tell you that China's first magnetic bearing with independent intellectual property rights and a rotor speed of 23,000-27,000 rpm has been introduced in Fuyang.

On January 7th, the expert appraisal committee headed by Wang Yuming, academician of the Chinese Academy of Engineering, announced in Fuyang: China's magnetic bearing technology research and development has made a major breakthrough, the first application of magnetic levitation technology in China - FS450 molecular pumping based on cross-feedback control Bearings, developed in Zhejiang Feixun Technology Co., Ltd., a subsidiary of Zhejiang Feihong Group, a “China Top 500 Private Enterprise”, which broke the foreign technology monopoly and made China a success after a few developed countries such as France, the United States, Canada, and Germany. A country with independent intellectual property rights in magnetic bearing manufacturing technology.

"Magnetic bearings, also known as active magnetic suspension bearings, are another revolutionary change in the bearing industry after oil lubrication and gas lubrication." Academician Wang Yuming said that magnetic bearings are a new type of high performance without mechanical contact between the rotor and the stator. The bearing uses the electromagnetic force to suspend the rotor in the space, in the state of being in the shape of the state, with no mechanical wear, low energy consumption, high allowable speed, low noise, long life, no lubrication medium. At present, the annual output of the world is only about 30,000 units.

In addition to its application in vacuum molecular pumps, this sophisticated mechatronic product has broad prospects in the fields of military, aerospace, petroleum, petrochemical and energy. Therefore, the magnetic bearing technology is sensitive technology in the international arena. For important application fields, developed countries have export restrictions on China, which means that the biggest cost may not be available.

Hong Shenping, general manager of Zhejiang Feixuan Technology Co., Ltd., is the research and development team of the project leader. With the technical support of Tsinghua University Nuclear Energy and New Energy Technology Research Institute, the company has successfully developed the molecular pump magnetic bearing suitable for integrated circuit equipment applications. It is understood that several prototypes of molecular pump magnetic bearings developed by Feituo Technology have passed the trial of users. In the next step, they will carry out research on mass production technology and realize industrialization as soon as possible.

September 19, 2018