FUEL MANUFACTURING
Cameco Fuel Manufacturing processes uranium dioxide to
produce pellets and assembles fuel bundles at its Port Hope site. The Cobourg
site manufactures the zircaloy components and tubing for the bundles.
Uranium Dioxide Process
Uranium dioxide (UO2) powder is delivered to Cameco Fuel
Manufacturing by truck in 45-gallon drums. The material is put into processing
containers and then blended to condition the powder
UO2 powder is compressed in a die to produce
cylindrical pellets
Pellets pass through a high-temperature electric sintering
furnace with a hydrogen atmosphere to convert them to a hard, high-density
ceramic
Pellets are ground under liquid coolant to precise
dimensions
Pellets are loaded into a fuel tube which is sealed by
welded end caps
Fuel tubes are assembled into bundles and zircaloy end
plates are attached by resistance welding
After inspection and cleaning, the fuel assemblies are
packaged for shipment
Zircaloy Components
The zircaloy tubes used in fuel bundles and component parts
are manufactured at Cobourg facility. Component parts are manufactured through
standard metal-working processes.
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