IMPROVEMENTS RELATING TO HEAT EXCHANGERS AND TO THE CLADDING OF FUEL ELEMENTS UTILIZED IN NUCLEAR REACTORS

Patent · Mon Jan 15 04:00:00 EST 1962

OSTI ID:4702337

Heat exchange means forming elements of heat exchangers or the cladding of nuclear fuel elements are formed by two metal sheets welded together by hot rolling. Before the rolling process an appropriate substance is interposed at given zones between said sheets, to prevent the mutual welding of the sheets within said zones. The sheets are then placed between two die halves, each of them provided with cavities. A pressurized fluid is introduced between the sheets at the non-welded zones, to press the sheets into the adjacent die halves, so that they get the desired shape in which they enclose a series of parallel cylindrical cavities. Preferably the outside faces of the sheets are machined before the rolling process to bring them in such a shape that after the deformation between the dies these faces comprise ribs or corrugations improving the heat transfer. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-029081
• OSTI ID: 4702337
• Report Number(s): FR 1285420
• Country of Publication: France
• Language: English

Related Subjects

CANNING
COATING
CONFIGURATION
CYLINDERS
DEFORMATION
DIES
EFFICIENCY
ENGINEERING AND EQUIPMENT
FINS
FLUID FLOW
FUEL ELEMENTS
HEAT EXCHANGERS
HEAT TRANSFER
HIGH TEMPERATURE
MACHINING
PRESSURE
ROLLING
SAFETY
SHEETS
WELDING