TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Ecological Degreasing Agents for the Cleaning of Metallic Surfaces
(Degresanti ecologici pentru curǎtarea suprafetelor metalice)
Vol LXI • No. 1/2009
Lazǎr Avram*, Floarea Manea*, Mihaela Manea*, Monica Stoica*, Michel Troquet**
* Universitatea Petrol - Gaze din Ploiesti, Bd. Bucuresti nr. 39, Ploiesti
e-mail: mmanea@upg-ploiesti.ro
** Polytech Clermont-Ferrand, France

 Keywords   degreasing agents, ecology, cleaning, metallic surface.

 Abstract
The paper presents a study concerning the cleaning capacity of a few ecological degreasing agents to remove used lubricants from metallic surfaces. The need of degreasing agent was determined depending on the metallic surface nature for seven different types of ecological degreasing agents, establishing the optimal degreasing degree. One main parameter influencing the degree of degreasing is temperature; this aspect is studied for both cold and warm seasons.

 Rezumat
În lucrare se studiazǎ capacitatea de curǎţare a unor degresanţi ecologici pentru îndepǎrtarea lubrifianţilor uzaţi de pe suprafeţele metalice. Se calculeazǎ necesarul de degresant în funcţie de natura suprafeţei metalice pentru şapte tipuri de degresanţi ecologici, stabilindu-se totodatǎ gradul de degresare optim. Un parametru determinant asupra gradului de degresare este temperatura, acest aspect fiind studiat atât pentru sezonul cald, cât şi cel rece al anului.



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