Brief introduction and application of thermal radiation energy-saving radiation coating

       Thermal radiation energy-saving coatings include low temperature, medium temperature heating, far infrared heating coatings and high temperature infrared heating coatings. Plasma sprayed composite oxide powder material composed of oxides such as TiO2, ZrO2, Nb2O5, Al2O3, Fe2O3, etc. The prepared coating is black and has high thermal emissivity. When heated, it can radiate far-infrared waves with a wavelength of 6-50um . The energy of this wavelength is easily absorbed by the molecules of macromolecular organic matter, water, air and other substances, causing the violent vibration and rotation of molecules and atoms, generating resonance phenomenon and generating heat energy, thereby accelerating the internal drying process of the substance and shortening the heating time. Improve heating efficiency and achieve the purpose of energy saving and electricity saving. Practical applications can reduce power consumption by about 30%. Such coatings are usually prepared by plasma spraying.



Far-infrared heating technology has the characteristics of fast temperature rise, uniform heating, simple process, low investment and remarkable energy saving effect. bake. Application The use of plasma spraying technology to spray ceramic-based far-infrared radiation coatings on heating components has the following advantages compared with the far-infrared coatings prepared by brushing:



1) Without any adhesive, it is beneficial to improve the radiation of the coating.



2) The porosity of the coating and the layered structure of particles increase the radiation area of the coating.



3) The bonding strength between the coating and the substrate is high, and there is no problem that the aging of the adhesive affects the bonding strength of the coating, and the service life is long.