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| Format: | Artículo científico |
| Language: | en |
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Instituto Politécnico Nacional
2012
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| Online Access: | https://www.redalyc.org/articulo.oa?id=61425146002 |
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Table of Contents:
- Atmospheric Corrosion in Indoor of Seafood Industry in the Norwest of Mexico Gustavo López-Badilla Benjamín Valdez-Salas Michaer Schorr-Wiener Ingeniería SEM AES steel cans Seafood industry atmospheric corrosion The metallic cans used to packed seafood are made from rolls of steel sheet coated with appropriate films. The exposure of steel cans to aggressive environments generates internal and external damage of these containers, and for this reason are necessary use coatings. The main air pollutants that cause atmospheric corrosion (AC) in steel cans in the northwest of Mexico where are located the city of Ensenada, are the chloride ions (Cl-) and sulfur oxides (SOX) principally. The corrosion in food containers generates economic losses and damages to the health of the consumers. The food industry, spend large financings in the recovery of damaged cans. When in a steel roll are generated black spots on the internal and external of steel cans, even in a good cleaning process, can not be used for food packaging and this is material lost. A study using the Scanning Electron Microscopy (SEM) and Auger Electron Spectroscopy (AES) techniques was carry out to determine the agents that react with the metallic surface of steel and know the thin layer of this films formed by the air pollutants. An evaluation of steel cans and sections of rolls of steel was made in three industrial plants, to know the reasons of the deterioration of materials, which caused economic losses. For the study was necessary analyze humidity and temperature parameters in indoor of the seafood industry of Ensenada and correlated with the corrosion rate (CR) of the internal and external areas of the steel cans using the ISO90001 standards, and also, determine the corrosivity levels (CL) in indoor of industrial plants. The information obtained was showed to specialized people and managers of the industries where was made the study to control the climatic factors and have the best clean environment with the minimum levels of Cl- and SOX. With these methods the CR decreased by 50%, and prevented economic losses and health problems with the consumers. 2012 artículo científico 1665-0654 https://www.redalyc.org/articulo.oa?id=61425146002 en http://www.redalyc.org/revista.oa?id=614 Científica application/pdf Instituto Politécnico Nacional Científica (México) Num.2 Vol.16