What are the characteristics of microwave heating?

The biggest feature of microwave heating is that microwave is generated inside the heated object, and the heat source comes from inside the object, so the heating is uniform.

The biggest feature of microwave oven heating is that microwaves are generated inside the heated object, and the heat source comes from the inside of the object, so the heating is uniform, which will not cause the phenomenon of "external coke and tender inside" and is conducive to improving product quality. At the same time, due to "simultaneous heating inside and outside", the heating time is greatly shortened, the heating efficiency is high, and it is beneficial to improve the product yield. The inertia of microwave heating is very small, which can realize the rapid control of heating and cooling, and is beneficial to the automatic control of continuous production.

1, uniform heating, high speed, the general heating method is to rely on heating the surrounding environment, so that the surface of the object is first heated by thermal radiation or hot air convection, and then conducted to the inside of the object by heat conduction. This method has low efficiency and long heating time.

2. Selective heating. The heat generated by microwave heating is closely related to the loss of the heated object. The dielectric constant of various media is in the range of 0.000 1 to 0.5, so the microwave absorption capacity of various objects varies greatly. Generally speaking, the medium with large dielectric constant is easy to be heated by microwave, and the medium with small dielectric constant is difficult to be heated by microwave. This is the characteristic that microwaves can selectively heat objects.

3, timely control, sensitive response, conventional heating methods, such as steam heating, electric heating, infrared heating, etc. It takes a certain time to reach a certain temperature, and the temperature will drop for a long time when there is a fault or the heating is stopped. Microwave heating can quickly adjust the microwave power to the required value and heat it to the appropriate temperature in a few seconds, which is convenient for automatic and continuous production.