METHOD OF HOT WORKING A METAL BILLET

Patent · Wed Oct 19 00:00:00 EDT 1960

OSTI ID:4107707

A method for hot working zirconium-clad U--10% Mo alloy for reactor fuel elements is described in which oxidation of the cladding and galling of the extruding apparatus are prevented. This prevention is accomplished by fitting a carbon steel jacket around the billet, heating to 1600 deg F to form a bond- inhibiting oxide film between the jacket and billet, and hermetically encasing the billet in the jacket to form a slug. The extrusion is then carried out with a vertical extrusion press described in Patent Serial No. 851,949, the slug being heated by induction to 1800 deg F just prior to extrusion. After extrusion, the jacket is removed either mechanically or by pickling in 20% H/sub 2/SO/sub 4/. (D.L.C.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-006363
• OSTI ID: 4107707
• Report Number(s): GB 851948
• Country of Publication: United Kingdom
• Language: English

Related Subjects

BONDING
CANNING
CARBON STEELS
EXTRUSION
FILMS
FUEL ELEMENTS
HEATING
HOT WORKING
INDUCTION
JACKETS
LEACHING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
OXIDATION
PRESERVATION
SULFURIC ACID
URANIUM ALLOYS
ZIRCONIUM