HEAT TRANSFER MATERIAL

摘要

This invention provides a heating tube and a heating plate which are capable of greatly improving the heat transfer efficiency of a conventional finned heating pipe and a conventional heating plate. Copper oxide powder is deposited in a gas phase on an adhesive agent-applied synthetic resin foam, and a copper plate on which the same metal powder has been deposited is laid on one surface of the foam and pressure-fixed thereto lightly by a roll press to be laminated. The synthetic resin foam is then burnt out in a combustion furnace to obtain metal foam of copper oxide on the copper plate. When the resultant product is reduction sintered in a reducing atmosphere such as a hydrogen reducing furnace, a copper foam having a copper plate on one surface thereof can be obtained. This copper foam can be used as it is as a material for fabricating a heating plate for a heat exchanger.