| 摘要 |
PURPOSE:To improve far infrared ray radiation which is very effective as radiation type heating, by forming a film containing a metallic oxide having specific optical radiation properties on the surface of a metallic base. CONSTITUTION:The titled reflector consists of a film containing a metallic oxide, in relation to optical radiation properties of which emissivity is less than 0.4-0.5 on the side wherein short wave length is less than 4-5mum and the emissivity is more than 0.85-0.90 on the side wherein long wave length is more than 4-5mum in a temperature range of 200-400 deg.C, and a metallic base. A reflector forms a coating layer having high emissivity in an infrared sphere of more than 4-5mum. Radiation, therefore, whose peak is deviated on a long wave length side, is obtained. Infrared radiation, therefore, is obtained at its high efficiency, through effect of which mild warmth can be obtained. Although resistance to heat of the film becomes problem awaiting solution as an average temperature of the reflector becomes about 300 deg.C, deterioration of the film through heat can be prevented by making use of NiC and SiC polymer of heat resisting paint as a binding agent. |
