On the evolution of infrared heater

The essence of infrared radiation is a kind of electromagnetic radiation, different frequencies constitute a very wide spectrum - from visible to infrared. The temperature of heating wire determines the radiation intensity distribution of heating tube with wavelength. According to the position of the maximum radiation intensity in the spectral distribution, the infrared radiation heating tube is classified as short wave (wavelength 0.76 ~ 1.6 m), medium wave (wavelength 1.6 ~ 4.0 m) and long wave (wavelength 4.0 m or above).

High infrared heating technology, was born in the United States in the 1970 s, the first by a NASA (NASA) used to simulate the satellite to the sun, the surface temperature rapid rise to the rising process of temperature at 2000 ℃. In the mid - 70 to carry out the space shuttle fly back the atmosphere with high temperature air friction experiment, high infrared heating technology was used to simulate the shuttle surface temperature from 273 ℃ low temperature rapidly heats up to 1800 ℃ high temperature process. Soon after, the technology spread to the civilian sector, by the mid - 1990 - s, in the United States, Germany, Japan and other western developed countries, the high infrared radiation heating technology has been widely used in coating, printing, packaging containers, plastic processing, printing and dyeing, chemical pharmaceutical, food processing, wood drying, heat treatment and so on almost all need heating industry.

In the mid-1970s, infrared radiation heating technology was introduced into China and tried out in a small number of industries. Due to the lack of understanding of the application prospect of this technology, its development is relatively slow. By the 1990s, high infrared radiation heating technology was introduced into China. Due to the lack of promotion and publicity of high infrared heating technology, and the lack of in-depth understanding of the manufacturing technology of the core component of this technology, the application and development of this technology in China until the end of the 1990s is still at the level of western developed countries in the early and middle 1990s.

In recent years, the advantages of infrared radiation heating technology has been gradually recognized, infrared heating tube, heater manufacturing level is increasing, its application in various industries in China is widely.