The working principle of the electric heating sheet is that the non-metal 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 fiercely, and high-speed friction generates field-effect thermal energy.
At present, Ag, Cu, and A1 have good performance as heat-generating raw materials, and their specific resistances are 1.63, 1.694, and 2.67, respectively. These three materials are excellent materials that can only conduct electricity and 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. It 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 cross-sectional area per unit of current, increases the number of electron impacts, increases the temperature of the heating layer, and reduces the heat capacity ratio. It achieves the fast heating effect of field effect heating and achieves the purpose of high efficiency and energy saving.
The non-metal superconducting ion heat source generates heat uniformly, changes the heating method of the linear structure of the resistance wire and the cylindrical structure of quartz and carbon rods, and helps to overcome the shortcomings of the large heat capacity of the heating body and the large thermal inertia. Reduce the temperature difference between the heating body and the heat conductor to achieve the same purpose of heating temperature and design use temperature. Reduced heating time and greatly reduced heat loss.
Electrical properties, click through strength is 90-98KV / mm2, it is the dielectric constant and dielectric loss tangent value change within a wide range of temperature and frequency. 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.
The heat-resistant sheet has heat resistance and excellent thermal oxidation stability. According to different temperature requirements, four varieties can be produced. The use period of 200 ° C is 50 years, the use period of 300 ° C and 540 ° C is 8 years, and the use period of 800 ° C is 5 years. Cold resistance, can be used at -50 ℃, repeated impact of cold and heat, its performance does not change.
The above is the relevant content introduced by the silicone rubber and heating film manufacturers, and I hope it will be helpful to everyone.