Compatibility And Interaction Study Of Extreme Pressure Agengts Contentsed Sulfur And Orther Additives In Metalworking Fluids

In this thesis,we made a general analysis of the current status of metalworking fluids development,including metalworking classification and function.System study was carried out on the compatibility and interaction between sulfur contain additives and anti-wear additives,other extreme pressure additives and corrosion inhibitors.The following main contents were studied:1.Compatibility and interaction study between different sulfur-contained additives and phosphate ester.We proved that it was possible to have a good balance between extreme pressure and anti-wear performance by optimizing the composition of the metalworking fluids.2.Compatibility and interaction study between different sulfur-contained additives and polymer ester,high TBN calcium sulphonate.Experimental results showed that there was synergistic interaction between additives in these metalworking fluids.3.Compatibility and interaction study between sulfur contain additives and corrosion inhibitors.There existed competitive adsorption interaction between sulfur additives and corrosion inhibitor on the metal surface.Designing method on enhancing the properties of the metalworking fluids was demonstrated.