Far Infrared Electric Heating Panel
Far infrared heating technology has evolved from carbon silicon, metal tubes, resistance bands, ceramics, semiconductors, enamel, and other elements in the 1970s, to quartz tubes, gold-plated quartz tubes, microcrystalline glass lamps, and other elements in the 1980s, and finally to far infrared directional strong radiators, taking three major steps through three stages. Among them, far infrared heating technology was limited to the medium temperature range of 0 to 450°C in the 1970s, and by the 1980s it had reached the medium temperature range of 600 to 750°C. Although the first generation of far infrared heating ovens and drying tunnels emphasized radiation as the main heating method, a portion of thermal energy was still transferred through conduction and convection, so the ovens and tunnels were required to be sealed and insulated. The far infrared directional strong radiator successfully developed in the mid-1990s achieved a new breakthrough in electrical-to-radiation conversion efficiency, with an efficiency of over 78%, a normal emissivity greater than 92%, and a thermal response time of less than 2 minutes.
