Far Infrared Electric Heating Plate
Silicon carbide far infrared electric heater is a radiant heater that, when powered, forms a strong broad-spectrum directional radiation in the vertical space. It effectively converts point energy into far infrared radiant energy, directly transferring it to the material being dried, rapidly converting it into molecular thermal motion, drying from the inside out, achieving rapid drying and setting, and achieving significant energy-saving effects.
Far Infrared Electric Heating Plate uses a silicon carbide plate coated with metal oxide, i.e., far infrared coating, as the radiation element. Heating wires are installed in the holes (or grooves) of the element, and a thick layer of insulating, refractory, and heat-insulating material is placed at the bottom of the element. Then a metal shell is installed, and terminals are connected for power supply. The flexural strength of silicon carbide at room temperature is 45Mpa, at 1000°C high temperature is 50Mpa, bulk density is 2.7-2.75g/cm3, thermal expansion rate at 900°C is 0.42-0.48%, and thermal conductivity (at 350°C) is 10.3-16.7w/m.k.
When far infrared radiation hits an object, it can be absorbed, reflected, and transmitted. The heated and dried material absorbs far infrared radiant energy at a certain depth internally and on the surface molecules simultaneously, generating a self-heating effect, causing the solvent or water molecules to evaporate, with uniform heating, thus avoiding deformation and quality changes due to different degrees of thermal expansion, keeping the material's appearance, physical mechanical properties, fastness, and color intact.
Widely used in automotive, textile, printing and dyeing, dyes, papermaking, bicycles, refrigerators, washing machines, chemical fiber, ceramics, electrostatic spraying, grain, food, pharmaceuticals, chemicals, tobacco and other industries, achieving ultra-fast drying. Especially suitable for large drying rooms, ovens, and conveyor drying tunnels.
Due to the advantages of good radiation effect, significant energy saving, and easy use and maintenance, silicon carbide far infrared electric heating plates occupy a considerable proportion in drying and heating methods. Especially suitable for large drying rooms, ovens, and conveyor drying tunnels.
Usage and Precautions:
1. Clean the surface dust before installation (but do not damage the coating).
2. Installation must be secure, but not too tight to prevent breakage.
3. For safety, the shell must be grounded.
4. Configure appropriate reflection devices according to the shape of the heated object to fully utilize thermal energy.
5. When using with power, gradually heat at a low temperature of 50°C-100°C (can be connected in series first to prevent thermal cracking).
6. Silicon carbide elements with general breakage or small missing corners can still be used, but care must be taken during assembly, disassembly, and repair to avoid damaging the elements.
7. The surface coating can be recoated after aging.
