During the maintenance and overhaul of nuclear power plants, rotary burrs can be used for a variety of applications, including but not limited to:

1. Metal Surface Treatment: Rotary burrs can be used to grind and clean metal parts inside nuclear power plants, such as pipes, valves, and pressure vessels, to remove rust, dirt, and oxide layers.

2. Weld Preparation: Before welding operations, rotary burrs can be used to prepare the weld area to ensure that the weld surface is clean, flat, and free of burrs or sharp edges.

3. Cutting and Trimming: When cutting or trimming metal parts is required, rotary burrs can provide precise cutting to accommodate complex structures and space constraints inside nuclear power plants.

4. Deburring and Edge Preparation: After welding or cutting, rotary burrs can be used to remove burrs from metal edges to ensure the safety and functionality of the parts.

5. Drilling: When drilling holes in metal parts is required, rotary burrs can be used for precise drilling, especially in hard-to-reach areas.

6. Polishing and surface treatment: To improve the appearance and corrosion resistance of parts, rotary grinding heads can be used for polishing.

7. Non-destructive testing (NDT) preparation: Before conducting non-destructive testing such as ultrasonic testing and radiographic testing, rotary grinding heads can be used to clean the test area to ensure the accuracy of the test results.

8. Emergency repair: In an emergency, rotary grinding heads can quickly repair damaged parts to reduce downtime.

When using rotary grinding heads, the safety regulations and operating standards of nuclear power plants must be followed to ensure the safety of operators and the normal operation of nuclear power plants. In addition, due to the special nature of nuclear power plants, the rotary grinding heads and abrasives used need to meet the strict standards of the nuclear industry to prevent contamination by radioactive substances.