WELDING SHOULD BE done in a manner that provides maximum
safety for the welder as well as those in the immediate
vicinity of the welding area. From the standpoint of electrical
safety and eye protection, flux cored arc welding requires
the same precautions as GMAW. Welding fumes,
however, are generated.
Flux cored arc welding electrodes generate welding
fumes at a rate per pound of deposited.meta1 comparable
to SMAW. Since FCAW deposition rates are scveral times
those of SMAW, the fume generation rate, in grams per
minute, is much higher than that with SMAW. It is important
to make sure that the welding fume concentration rcmains
below the permissible exposure limit (PEL), specified
at 5 mg/cubic meter by the Occupational Safety and
Health Administration of the U.S. Department of Labor
(OSHA), Note that local requirements may be more
stringent.
Special precautions must be taken to protect the operator
from breathing manganese-containing fumes when
welding Hadfield manganese products. Also, welding of
stainless steels and surfacing with chromium alloys presents
the problem of chromium-containing fumes.
Safety requires being aware that shielding gases present a
hazard of their own when welding is done in confined
spaces. These shielding gases are not poisonous, but are
asphyxiants, and will displace oxygen. Welding with
shielding gases high in argon will generate substantial ultraviolet
radiation, which will react with oxygen in the vicinity
of the arc to form ozone.
Safe use of the flux cored welding process calls for careful
evaluation of these factors and instituting appropriate
corrective measures before welding.
WELDING SHOULD BE done in a manner that provides maximumsafety for the welder as well as those in the immediatevicinity of the welding area. From the standpoint of electricalsafety and eye protection, flux cored arc welding requiresthe same precautions as GMAW. Welding fumes,however, are generated.Flux cored arc welding electrodes generate weldingfumes at a rate per pound of deposited.meta1 comparableto SMAW. Since FCAW deposition rates are scveral timesthose of SMAW, the fume generation rate, in grams perminute, is much higher than that with SMAW. It is importantto make sure that the welding fume concentration rcmainsbelow the permissible exposure limit (PEL), specifiedat 5 mg/cubic meter by the Occupational Safety andHealth Administration of the U.S. Department of Labor(OSHA), Note that local requirements may be morestringent.Special precautions must be taken to protect the operatorfrom breathing manganese-containing fumes whenwelding Hadfield manganese products. Also, welding ofstainless steels and surfacing with chromium alloys presentsthe problem of chromium-containing fumes.Safety requires being aware that shielding gases present ahazard of their own when welding is done in confinedspaces. These shielding gases are not poisonous, but areasphyxiants, and will displace oxygen. Welding withshielding gases high in argon will generate substantial ultravioletradiation, which will react with oxygen in the vicinityof the arc to form ozone.Safe use of the flux cored welding process calls for carefulevaluation of these factors and instituting appropriatecorrective measures before welding.
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WELDING SHOULD BE done in a manner that provides maximum
safety for the welder as well as those in the immediate
vicinity of the welding area. From the standpoint of electrical
safety and eye protection, flux cored arc welding requires
the same precautions as GMAW. Welding fumes,
however, are generated.
Flux cored arc welding electrodes generate welding
fumes at a rate per pound of deposited.meta1 comparable
to SMAW. Since FCAW deposition rates are scveral times
those of SMAW, the fume generation rate, in grams per
minute, is much higher than that with SMAW. It is important
to make sure that the welding fume concentration rcmains
below the permissible exposure limit (PEL), specified
at 5 mg/cubic meter by the Occupational Safety and
Health Administration of the U.S. Department of Labor
(OSHA), Note that local requirements may be more
stringent.
Special precautions must be taken to protect the operator
from breathing manganese-containing fumes when
welding Hadfield manganese products. Also, welding of
stainless steels and surfacing with chromium alloys presents
the problem of chromium-containing fumes.
Safety requires being aware that shielding gases present a
hazard of their own when welding is done in confined
spaces. These shielding gases are not poisonous, but are
asphyxiants, and will displace oxygen. Welding with
shielding gases high in argon will generate substantial ultraviolet
radiation, which will react with oxygen in the vicinity
of the arc to form ozone.
Safe use of the flux cored welding process calls for careful
evaluation of these factors and instituting appropriate
corrective measures before welding.
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