Structural layout and performance characteristics of ceramic heaters

- Oct 10, 2019-

Since the ceramic heater uses a ceramic strip threading method, the imported round-wire ceramic is used as a heating element, and is bent into a spring shape and penetrated into the ceramic strip; the outer cover is made of stainless steel, and the high-temperature thermal insulation cotton is used to prevent temperature leakage This structure makes the power of this product much higher than that of ordinary electric heaters.

For ceramic heaters, its ceramic strip is a high-frequency ceramic, so it has the characteristics of fast heat transfer, hardness and fragility, high temperature, no deformation and aging, and electric heaters naturally inherit these advantages. In addition, the heat-radiating surface of the electric heater needs to be added with a thermal insulation device, and the inner heat-radiating surface is sintered with infrared rays, so that the purpose of power saving can be achieved.

The electric heater is generally controlled by the contacts of the temperature control instrument to switch the internal AC power on and off. When the temperature of the ceramic heater is lower than the set temperature, the contact of its temperature control instrument is turned on. Rise; when the temperature of the electric heater is higher than the set temperature, the contacts of the temperature control instrument are disconnected, and the temperature drops to ensure that the electric heater works within a certain temperature range.

If the electric heater has a burnout fault, the operator cannot determine whether the electric heater is normally powered off due to a temperature rise or the electric heater is powered off due to a heater disconnection fault. Due to the thermal inertia of the heater, the temperature inside the electric heater needs to be delayed for a period of time to drop. In this way, when the operator of the electric heater finds that the product is unqualified, it has caused waste and affected the product quality.