The working principle of the electric heating sheet is that the non-metallic superconducting ion heat source sheet generates a terminal voltage when it is energized. Under the action of an electric field, the moving electrons and ions collide violently, and high-speed friction generates field-effect heat energy.
At present, Ag, Cu, and A1 have good properties of heating materials, and their specific resistances are 1.63, 1.694, and 2.67 respectively. These three kinds of materials can only conduct electricity and are excellent materials that do not generate heat. The non-metallic superconducting heating material we use has a specific electricity of 0.22, which is more than 7 times that of Ag, and is called a superconducting material. The addition of superconducting raw materials for the heating sheet greatly reduces the thickness of the heating layer of the non-metallic superconducting ion heat source sheet, reduces the unit cross-sectional area of the passing current, increases the number of electrons, and increases the temperature of the heating layer and reduces the heat capacity ratio. The field effect heating and heating up quickly are achieved, and the purpose of high efficiency and energy saving is realized.
The non-metallic superconducting ion heat source sheet heats evenly, which changes the heating method of the linear structure of the resistance wire and the cylindrical structure of the quartz and carbon rods. The heating element has the disadvantages of large heat capacity ratio and large thermal inertia. It reduces the distance of heat transfer mesons and reduces The temperature difference between the heating body and the heat conductor achieves the purpose of consistent heating temperature and design temperature. Shorten the heating time and greatly reduce the heat loss.
Electrical properties, the click-through strength is 90-98KV/mm2, it is the dielectric constant and dielectric loss tangent that change very little in a wide temperature and frequency range. The dielectric constant is not only smaller than that of general organic materials, but also decreases with increasing temperature. It has the advantages of arc resistance and corona resistance. It is a raw material between organic and inorganic. It produces SiO2 self-reliance when burned at high temperatures.
The heating sheet has heat resistance and excellent thermal oxidation stability. According to different temperature needs, four varieties can be produced. The service life of 200℃ is 50 years, the service life of 300℃ and 540℃ is 8 years, and the service life of 800℃ is 5 years. Cold resistance, it can be used at -50°C, and its performance remains unchanged after repeated impacts of cold and heat.
The above is the relevant content introduced to you by the silicone rubber and heating film manufacturers, and I hope it will be helpful to you.
