Report compilation of tests and inspections for boron--carbide safety ball certification

Technical Report · Mon Apr 16 04:00:00 EST 1979

OSTI ID:6237700

Pociluyko, M

The accumulated quantity of boron--carbide safety balls, ground by UNI on-plant from the boron--carbide tumbled cylinders or pellets, totaled 61 barrels (250.1 ft/sup 3/) on March 31, 1979. A volume loss (2.3 ft/sup 3/) was incurred as a result of the 268 flow tests performed on 14 sampled lots. The loss was ascribed mainly to ball dusting in handling and draining activities. The remaining volume (247.8 ft/sup 3/) is sufficient to fill the 108 ball hoppers (243.0 ft/sup 3/) on reactor. The certified balls are stored in 61 steel barrels which are identified at Lot Nos. 1 to 61.

• Research Organization: United Nuclear Industries, Inc., Richland, WA (USA)
• DOE Contract Number: EY-76-C-06-1857
• OSTI ID: 6237700
• Report Number(s): UNI-1299
• Country of Publication: United States
• Language: English

Related Subjects

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BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
ENRICHED URANIUM REACTORS
FABRICATION
GRAPHITE MODERATED REACTORS
INSPECTION
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SPHERES
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