| 摘要 |
<p>IR radiation device operated by burning a gas-air mixture at the surface of a burner with a large number of holes which has a front face comprising a series of bars of material with thermal conductivity 0.1 Kcal/mh degrees C interspersed with and mechanically supported by a series of wavy metal bars, resistant to both the flame temp. and corrosion. The low thermal conductivity material is pref. a matte of fibrous ceramic coated with an IR emitter specif. Cr2O3.</p> |
