The role of mica board in microwave oven

In the microwave oven, the mica board can prevent water vapor and food residues from entering the waveguide, which affects the normal operation of the magnetron. In this part, the power of the microwave oven is very large. If there are some food residues, it will be easily burnt, which may cause the mica board to be burnt out in severe cases. Therefore, the mica board needs to be cleaned frequently. If it is not possible to clean the microwave oven every time it is used, it must be cleaned at least 3 times. Another point to pay attention to is that the microwave oven cannot be burned in empty, which will easily cause the mica board to be burned out.