Abstract: Device for metallizing strip material along surface areas by decomposing a gaseous metallic compound within or close to a focal line extending within or close to the surface of the strip material and metallizing same by moving it in a transverse direction to the focal line.

Abstract: A process for metallizing strips, sheets or other generally flat material by depositing metal from an atmosphere containing a gaseous metallic compound is disclosed. According to the metallizing process, a focal line extending within or closely adjacent to the surface to be metallized is established by an optical system. Thermal energy is focused at this focal line by the optical system to create a line at which the temperature is above the decomposition temperature of the gaseous metallic compound. Since heating is substantially confined to the focal line, the method of the invention provides a significant advantage in that the material to be metallized is not raised to the decomposition temperature. Accordingly the present invention provides a metallizing process which does not require the use of evacuated enclosures and does not require a high temperature tolerance in the materials to be metallized.

Abstract: The disclosure is of a novel method of manufacturing a heat exchanger or heat transfer element of the type which comprises a heat-conductive tube enclosing a heat-conductive, porous body attached to the inner surface of the tube so that heat conducted by the porous body is transferred by the outside tubular body. By the method of the invention, the porous body may be connected to the inner surface of the tubular body without significant reduction of the porosity of the porous body. The method comprises disposing the porous body in the tube, passing vapors of a thermally decomposable metallic compound through the porous body and tube, decomposing said compound in the zone where the porous body approaches the inner walls of the tube and depositing the metallic metal product of the decomposition at the points of approach between the porous body and the inner walls of the tube whereby the porous body is connected to the tubular body by the deposition.