Title :
Efficiency of the Low-pressure Cold Plasma in the Cleaning of Steel Sheet for Subsequent Covering
Author :
Sarmiento, P.M. ; Lopez, L.M. ; Sarmiento, A.P. ; Fajardo, J.I.
Author_Institution :
CIDII (Centro de Investig., Desarrollo e Innovacion en Ingenierias), Univ. Politec. Salesiana, Cuenca, Ecuador
Abstract :
This research was carried out a comparative analysis of cleaning of sheet steel, for use in forming processes impregnated with a mixture of SAE 40 oil and diesel by means of low-pressure cold plasma. The plasma discharge was generated by radio frequency energy using two types of gases, argon and oxygen. Cleaning of the surface was evaluated by measuring the contact angle with deionized water, diiodo methane and ethylene glycol, for the calculus of the surface free energy by means of the Fowkes theories and Wu and gas chromatography. The results show that the plasma cleaning is more effective when using a previous cleaning, in this case the immersion in solvent (CH3-OH).
Keywords :
argon; chromatography; contact angle; discharges (electric); forming processes; mixtures; oxygen; plasma materials processing; plasma pressure; plasma production; stainless steel; surface cleaning; surface energy; Ar; Fowkes theory; O; SAE 40 oil-diesel mixtures; argon; contact angle; deionized water; diiodo methane; ethylene glycol; forming processes; gas chromatography; low-pressure cold plasma efficiency; oxygen; plasma cleaning; plasma discharge; plasma generation; plasma radio frequency energy; stainless steel sheet; subsequent covering; surface cleaning; surface free energy; Liquids; Metals; Plasmas; Solids; Surface cleaning; Materials processing; Plasma materials processing; Production;
Conference_Titel :
Andean Region International Conference (ANDESCON), 2012 VI
Conference_Location :
Cuenca
Print_ISBN :
978-1-4673-4427-2
DOI :
10.1109/Andescon.2012.35
