Taking the magnetic suspension train as an example, the application conditions for superconducting magnets are explained.

The superconducting materials of the superconducting magnetic caravan application and the magnets constituted should meet the following conditions:

① Can produce effective propulsion, suspension and guidance.

② When approaching and leaving the ground device state, you can work under permanent current.

③ As a vehicle equipment, the weight should be light and small.

④ In order to have good electrical performance, the interval size of the surface of the ultra -coil and the cooling container shell is small.

⑤ In order to reduce the working load of the car cooling equipment, there must be a good insulation layer.

⑥ In order to prevent the interference of mechanical and electrical during operation, there must be sufficient mechanical strength and stability

Making superconducting magnets is not only a problem of magnetic materials, it is difficult to explain the short story in this regard. Because the content of this area is very meaningful in magnetic applications, it is specially explained. It is not easy to obtain a magnetic flux density (1.6x10 ’amir/meter) more than 2 (Tesla) with iron cores. If a hollow screw line tube around the superconducting coil, you can get a high magnetic flux density of about 3 ~ 15 (Tesla). This device is mainly used in research work, such as hydrogen clouds and mHDs. , MRI, resonance, closed plasma (nuclear fusion power generation) and other aspects. If the train reaches the speed of 500 kilometers per hour, you can use a magnetic suspension method to suspend the train from the ground. As long as one -time driving is performed, the train can continue to advance forward. The key to implementing this solution is to use superconducting magnets.