Novel antifriction lubricant additive containing nano ferrous sulphide
A lubricating oil additive, ferrous sulfide technology, applied in the direction of additives, lubricating compositions, petroleum industry, etc., to achieve the effect of improving anti-scratch performance, good dispersibility and stability, and improving friction and wear performance
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[0028] Firstly, SEM, ultra-depth of field and secondary particle mass spectrometry are used to characterize the worn surface to study the mechanism of action of lubricant additives containing nano-ferrous sulfide (lubrication friction test):
[0029] Select the lubricating oil lubrication test after the lubrication friction test with no addition and addition of 2%, 5% and 10% of nano-ferrous sulfide under the conditions of a load of 100N and a speed of 200rpm. The part of the wear scar was cut with a cutting machine to make observation specimens, and observed under SEM: the upper specimen was cut with a length of 8 mm and a width of 5 mm, and the lower specimen was cut with the claws of the three-claw pin. At the same time, SEM is used to analyze the element distribution in the micro-area by scanning, and the phase composition is analyzed by EDX. The cut samples were wiped with acetone and then placed in an ultrasonic cleaning machine to be cleaned until no oil stains. The second...
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