The extreme pressure & anti-wear performance of the organic molybdate containing no sulphur and phosphorus(Molybdate) in a paraffin base oil and formulated oils,and the anti-wear synergistic effects of the Molybdate with zinc dialkyldithiophosphate(ZnDDP) were investigated by using four-ball machine and the analytical tools such as scanning electron microscope(SEM) and frared spectrograph.

Differential scanning calorimetry(DSC) was used to evaluate the antioxidation performances of sulfur-and phosphorus-free organic molybdenum(MoSB) and dibutyldithiocarbamate antioxidant(V 7723) in polyalphaolefin synthetic lubricant(PAO).

The composite of oil-soluble organic molybdenum compounds and ZnDDP exhibited excellent synergistic anti-wear and friction-reduction properties.

This thesis is going to discuss this development in three aspects: the deconstructionist speech act theory adopted by Miller,his view on the rhetoric nature of literature in terms of this theory,his view on the non-organic structure of literature in terms of this theory.

It is discussed three types of organic molybdenum additives with regard to anti-oxidation, anti-wear and friction reducing performances.

The oil - soluble organic molybdenum compounds, including organic molybdenum compounds with sulphur and non - active molybdenum - amine complex compounds, have good anti - wear and extreme pressure performances, their chemical properties and application are reviewed briefly.

determination of molybdenum,sulfur and phosphorus in organic molybdenum energy-saving agent for anti-wear and anti-attrition by the Inductively Coupled Argon Plasma emission spectroscopy was introduced.