| abstract |
The invention discloses a hydraulic oil additive composition with salt spray rust resistance, which is characterized in that the composition components and contents are: 10-20% of dialkyldithiophosphate, shielding phenol type Antioxidant 5‑10%, Diphenylamine Antioxidant 5‑10%, Benzenetriazole Derivative Metal Passivator 1‑5%, Rust Inhibitor 30‑50%, Demulsifier 1‑5%, Oil 1-5% of soluble sulfurized amide compound, balance of diluent, and the structure of dialkyldithiophosphate: Wherein: R 1 is an octylbutyl group, and R 2 is a C5-C8 straight-chain alkyl group. The structure of oil-soluble sulfurized amide compounds is: Among them, m is the number of double bonds of acrylic acid, and n is the number of double bonds of acrylic acid amide. The hydraulic oil additive composition with salt spray rust resistance of the present invention can not only pass the test of the salt spray box and the humid heat box, but also meet the specifications of GB 11118.1-2011 (L-HM common). |