Foundry Sand
Mostrando 25-28 de 28 artigos, teses e dissertações.
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25. Correlação entre parametros termicos e microestrutura dendritica e sua aplicação na simulação da fundição de ligas de aluminio
This work deals with the development of a method to predict the dendritic microstructure in aluminum alloy foundry process. Firstly, an aluminum alloy used in automotive pari production was chosen to be studied in this work. Such an alloy had an average amount of 9.0% wt. of Si and 2.5% wt. Of Cu. The work was started by making the alloy metallography and th
Publicado em: 1996
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26. Respiratory disease in foundry workers.
A survey was carried out in a steel foundry in Brisbane to evaluate the nature and frequency of respiratory symptoms and to assess ventilatory function. The foundry used many moulding processes including the Furane, Isocure, Shell, carbon dioxide, and oil sand systems. Nasal symptoms and wheeze were often reported, particularly by workers in the general foun
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27. Gaseous and adsorbed PAH in an iron foundry.
The increased risk of lung cancer among foundry workers is assumed to be associated with the inhalation of gaseous and particle bound polycyclic aromatic hydrocarbons (PAH). These compounds are produced during pyrolysis of carbon containing loading material in the moulding sand. The concentrations of 20 PAH, some of which are carcinogenic, have been determin
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28. Ocular effects of exposure to triethylamine in the sand core cold box of a foundry.
OBJECTIVES--To assess the acute and chronic ophthalmological effects of triethylamine exposure among foundry workers. METHODS--Ocular effects on people currently, previously, and never exposed to triethylamine in a foundry cold box were studied at two points in time. The initial phase included an ocular examination with a slit lamp to assess corneal health,