| 초록 |
Supercritical fluid carbon dioxide can be employed as a solvent that are conventionally used for washing contaminants from the surface of metal substrates. The efficiency of SCCO2 cleaning process depends on process conditions such as pressure, temperature, cleaning time and co-solvent. Cu, Carbon steel were selected as metal substrates that have trench on surface and mineral oil and Teflon lubricating oil were coated on metal trench as contaminants. Within the parameter range studied, cleaning efficiency generally improved when pressure, temperature are increased. When the co-solvent was added, removal efficiency of contaminant was improved. The SCCO2 cleaning process can remove mineral and Teflon lubricating oil contaminants from trench ofCu, Carbon steel substrates. |
