Control of airborne nickel welding fumes by means of a vertical laminar air flow system
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, TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6445036
- Report Number(s):
- K/RA-102
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR
AIR POLLUTION
AIR POLLUTION CONTROL
CLEAN ROOMS
COLLOIDS
DISPERSIONS
ELEMENTS
FABRICATION
FLUID FLOW
FLUIDS
GAS FLOW
GASES
JOINING
METALS
NICKEL
PERSONNEL
POLLUTION
POLLUTION CONTROL
SAFETY
SOLS
SURFACE AIR
TRANSITION ELEMENTS
WELDING