Control of airborne nickel welding fumes by means of a vertical laminar air flow system

Technical Report · Mon Dec 08 00:00:00 EST 1980

DOI:https://doi.org/10.2172/6445036· OSTI ID:6445036

Helms, T C

The purpose of this study was to evaluate the effeciveness of a clean room facility with laminar air flow in the control of nickel fumes released from metal inert gas (MIG) and shielded metal arc (SMA) welding operations performed on mild steel using nickel filler materials. From data observed in these experiments, it appears that the laminar flow clean room approach to controlling welding fumes can be successful in certain small table top welding operations. However, almost any interferences that obstruct the downward airflow can result in eddy currents and subsequent build-up of fumes by entrapment. Airflow patterns differ significantly when comparing table top operations to welding on large cylindrical and/or doughnut shaped items. (JGB)

• Research Organization: Oak Ridge Gaseous Diffusion Plant (K-25), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6445036
• Report Number(s): K/RA-102; TRN: 81-009502
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
NICKEL
AIR POLLUTION CONTROL
WELDING
AEROSOLS
AIR POLLUTION
CLEAN ROOMS
GAS FLOW
PERSONNEL
SAFETY
SURFACE AIR
AIR
COLLOIDS
DISPERSIONS
ELEMENTS
FABRICATION
FLUID FLOW
FLUIDS
GASES
JOINING
METALS
POLLUTION
POLLUTION CONTROL
SOLS
TRANSITION ELEMENTS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)