Study of the ultraviolet emission of the electrode coatings of arc welding.
Int J Environ Health Res
; 14(4): 285-94, 2004 Aug.
Article
en En
| MEDLINE
| ID: mdl-15369993
ABSTRACT
The optical emission properties of several minerals components employed in electrode coatings of arc welding have been investigated. The X-ray diffraction analysis shows that the composition of 14 commercial electrode coatings collected from different countries (Spain, France, UK, Poland, Argentina and Germany), consists of quartz, calcite, sodium and potassium rich feldspars, muscovite and rutile. The natural thermal stimulated luminescence (TSL) of these mineral phases, measured in the range of 200-800 nm at different temperatures (from room temperature to 400 degrees C) displays UV-A (wavelengths of 320 nm to 400 nm) and UV-B (from 280 nm to 320 nm) emissions, with the exception of rutile. The UV-B radiation, commonly described as the most dangerous form of radiation to human life, is here associated with structural defects in the crystallographic lattice of the mineral components of electrode coatings.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Rayos Ultravioleta
/
Soldadura
/
Exposición Profesional
Tipo de estudio:
Etiology_studies
Idioma:
En
Revista:
Int J Environ Health Res
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2004
Tipo del documento:
Article
País de afiliación:
España