78results about How to "Excellent antioxidant stability" patented technology

The invention belongs to the technical field of lubricating oil. The antiwear energy-saving environment-friendly diesel engine oil comprises the following components in percentage by weight: 84.5-86% of base oil, 0.5% of antioxidation and anticorrosion agent, 14.0-15.5% of other additive and 0.05-0.2% of microfluorine solid lubricant powder. The preparation method comprises the following steps: adding base oil into a blending kettle, heating to 65 DEG C+ / -5 DEG C, sequentially adding the tackifier, pour-point depressant, antioxidation and anticorrosion agent and complexing agent while continuously stirring, stirring for 30-40 minutes, and standing to settle; and heating the oil to 65 DEG C+ / -5 DEG C, adding a certain amount of polyhexafluoroethylene superfine micropowder while continuously stirring, stirring for 4-5 hours, and standing to settle to obtain the finished product. Compared with the prior art, the wear-resistant lubricating oil with the polyhexafluoroethylene superfine micropowder has the advantages of reasonable component design, favorable antiwear and antifriction properties, favorable use effect and excellent high temperature resistance, and can prevent the machine from overheating in the high-speed operation process due to the favorable thermal conductivity.

The invention discloses an anti-wear lubricating oil for automobiles, which is composed of the following raw materials in percentage by weight: 2%-3% of alkyl salicylic acid; 0.2%-2.0% of zinc dialkyl dithiophosphate, and 0.6% of borate %‑5%; polyvinyl n-butyl ether 1.0%‑2.5%; benzotriazole 0.05%‑0.40%; alkylnaphthalene 0.1%‑1.0%; methyl silicone oil 1%‑3%; 1%-3% antimony dithiophosphate; 1%-3% butyl stearate; the balance of base oil. Compared with the prior art, the beneficial effects of the present invention are: excellent high-temperature detergency, anti-oxidation stability, anti-friction and anti-wear properties and base number retention, low average fuel consumption, reduced engine noise, reduced engine vibration, The operation is more stable, and the driving and handling performance has been significantly improved.

The invention provides a high-speed chain lubricating grease, comprising the following components by weight: 28.8-90.1% of base oil, 5-25% of thickening agent, 0.1-1.0% of antioxidant, 0.5-5% of anti-wear reagent at extreme pressure, 0.3-3% of an anti-rust agent, 0.02-0.2% of a metal passivating agent, 2-20% of a solid lubricant and 2-20% of a tackifier. The invention also provides a preparation method of the high-speed chain lubricating grease. The high-speed chain grease provided by the invention is suitable for high-speed motorcycle chain, automobile engine chain and industrial chain. The high-speed chain lubricating grease provided by the invention adopts compound of the anti-wear reagent at extreme pressure and the solid lubricant, has excellent rust resistance, high temperature resistance, antifriction performance, water resistance, antiwear performance at extreme pressure and long-term anti-wear effect maintenance, and can be used in chains of extremely harsh speed racing car (motorcycle and automobile engine); and the chain has elongation less than 2 mm, and service life reaching up to 10000 kilometers.