Fastener tightening in a radioactive (hot) cell

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6799184

Kalk, J J

Accurate remote tightening of fasteners in a radioactive (Hot) cell can be a very exasperating experience. Viewing can be difficult (in many places) and work sometimes must be done using mirrors and/or cameras. If electro mechanical manipulators are used, the operator has no ''feel,'' which often can result in cross threading, or improper torquing of fasteners. At the Interim Examination and Maintenance (IEM) Cell, where reactor components from the Fast Flux Test Facility (FFTF) are disassembled, these problems are prevalent because three of the IEM Cell walls have no windows. Electric impact wrenches were first proposed and tested for the IEM Cell, but the combined effects of radiation, dry argon atmosphere and poor visibility radically altered the cell tool development philosophy. This change in philosophy is reflected in the development of several simple fastener tightening devices.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 6799184
• Report Number(s): HEDL-SA-3503-FP; CONF-870301-22; ON: DE87007706
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
42 ENGINEERING
420203* -- Engineering-- Handling Equipment & Procedures
ARGON
ELEMENTS
EPITHERMAL REACTORS
EQUIPMENT
FABRICATION
FAST REACTORS
FASTENING
FFTF REACTOR
FLUIDS
FUEL ASSEMBLIES
GASES
HOT CELLS
JOINING
LABORATORY EQUIPMENT
LIQUID METAL COOLED REACTORS
MATERIALS HANDLING EQUIPMENT
NONMETALS
RARE GASES
REACTORS
REMOTE HANDLING EQUIPMENT
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SODIUM COOLED REACTORS
TEST REACTORS
TOOLS
TORQUE