79results about How to "Good extreme pressure resistance" patented technology

The invention discloses a compound lithium base grease composite, which comprises the following materials in percentage by weight: 70-89% of grease base oil, 10-25% of densifier, 0.02-2% of additive, and 0.01-5% of bismuth oxide. In the compound lithium base grease composite, micron-level bismuth oxide powder is added as an extreme-pressure additive, and the prepared compound lithium base grease composite has good colloidal stability and mechanical stability, and better high temperature performance and extreme pressure resisting performance.

A heavy-duty antiemulsifying oil film type bearing oil for high-speed wire rolling mill contains demulsifier, antiwear agent, antifoaming agent, alkylnaphthalene, antioxidant and mineral oil. Its advantages are excellent antiemulsifying, antiwear, anti-extreme-pressure, anticorrosion, antirust, antifoaming and antioxidizing performance, and better viscosity-temp characteristic.

The invention discloses full-synthetic gear/bearing oil for four seasons and a preparation method thereof. The full-synthetic gear/bearing oil for four seasons is prepared by blending synthetic oil taken as base oil and an additive; the selected base oil is one of ester oil, synthetic hydrocarbon-type oil and a mixture of the ester oil and the synthetic hydrocarbon-type oil; the selected additive is a high-performance complexing agent, which is one of gear oil compound additive, wind turbine oil additive, industrial lubricant friction modifier, general gear oil complexing agent and multifunction gear oil additive; and the blending ratio of the base oil to the additive is 1.0 to 5.0 weight percent of the high-performance complexing agent and the balance of the base oil. According to viscosity grades of the gear oil, the synthetic oil with one or more compositions is added to a blending kettle with a stirrer in required proportion, is stirred for 0.5 to 1.5 hours at a temperature of between 30 and 60 DEG C, and is blended into the base oil of the gear oil; and the base oil is added with the high-performance complexing agent in a certain proportion and stirred for 1 to 3 hours at a temperature of between 30 and 60 DEG C to form the gear lubricant of the invention.

The invention belongs to the field of vehicle gear lubricant, and relates to preparation of an extreme pressure anti-wear agent and vehicle gear oil containing the extreme pressure anti-wear agent. The preparation of the extreme pressure anti-wear agent comprises steps as follows: a certain amount of borax is added to a lanthanum nitrate solution and subjected to a reaction for a few hours; then a certain amount of n-butyl alcohol is added to a reaction liquid and subjected to esterification for a few hours; after the reaction, an appropriate amount of lauryl alcohol modified graphene oxide is added and subjected to transesterification, impurities of a reaction product are removed through distillation, and the extreme pressure anti-wear agent is obtained. The vehicle gear oil containing the extreme pressure anti-wear agent comprises components as follows: base oil, the extreme pressure anti-wear agent, ammonium thiophosphate, sulfurized isobutylene, a clearing agent, a dispersing agent, a pour point depressant and a deforming agent. According to the preparation of the extreme pressure anti-wear agent and the vehicle gear oil containing the extreme pressure anti-wear agent, the friction coefficient of the surface of a friction pair is reduced, a rare earth element and a boron element are diffused from the friction surface to a substrate in a friction process so as to form a permeable layer, the wear resistance of a material surface is improved, an extreme pressure anti-wear effect is realized, and properties of good wear resistance, rust resistance, corrosion resistance and the like are achieved.

The invention relates to a metal nanometer particle surface conditioner as well as the preparation method and the application, belonging to the technical field of nanometer additives of lubricating oil. The invention is characterized in that the metal nanometer particle surface conditioner is prepared according to the mass percentage as follows: 5 to 80% at least one metal nanometer fine particle of copper, zinc, nickel or tin with the particle size of less than 30 nanometers; 20 to 90 % nanometer macromolecular composite material (B) formed by the copolymer of hydrocarbon, ester or sulfonate surfactants and iron-bas ion with the average particle size of less than 25 nanometers; 0.001 to 10 % mixture (C) comprises antioxidant, anticorrosive agent and friction modifier. Compared with the prior art, the metal nanometer particle surface conditioner has the advantages of simple process, convenient preparation, and good stability, dispersion, extreme pressure resistance performance and self-repairing function.

The invention discloses water-based lubricating fluid. The water-based lubricating fluid comprises water-soluble lubrication base liquid, an antirust agent, an anti-grinding agent, a coupler, an anti-foaming agent, a bactericide, a pH value conditioning agent and water. The water-based lubricating fluid has good anti-foaming property and anti-rust property, and excellent lubricity, paint adaptability and anti-extreme pressure performance.

The invention discloses synthetic type cutting fluid containing nanoparticle molybdenum sulfide and a preparation method thereof. The synthetic type cutting fluid disclosed by the invention is prepared from the following components in percentage by mass: 5 to 12 percent of an antirust agent, 0.3 to 0.4 percent of a de-foaming agent, 2 to 15 percent of a lubricant, 0.4 to 2 percent of an anticorrosion and bactericidal agent, 34 to 50 percent of a surfactant, 0.2 to 0.6 percent of methylbenzotriazole and the balance of water; the total weight is 100 percent; the lubricant is a dispersion solution of nano molybdenum sulfide, and is prepared from the following components in percentage by mass: 4.5 to 5.5 weight percent of the nano molybdenum sulfide, 1.2 to 1.6 weight percent of alkyl sulfanilamide sodium acetate, 1.8 to 2.2 weight percent of glycerin polyethenoxy ether and the balance of water. The synthetic type cutting fluid disclosed by the invention has good lubricating property, antirust property, extreme pressure property and cooling property.

The invention provides food grade bearing grease for hydraulic engineering as well as a preparation method and application thereof. The grease composition comprises food grade base oil, a thickening agent and an additive composition. The grease composition comprises the following components in percentage in weight: 84-94% of base oil, 6-16% of the thickening agent, 0.5-10% of an additional antirust agent and 0.1-10% of an additional anti-wear reagent at extreme pressure. The thickening agent is composed of reactants of C16-C20 long-chain fatty acids, aromatic acid and organic aluminum and meets the food grade requirement. The molar ratio of the three raw materials is 1 to 1-1.7 to 1-1.3. The organic aluminum comprises aluminum isopropoxide or triisopropanol trioxide. The bearing grease disclosed by the invention is excellent in anti-wear and extreme pressure property, and the service life of the bearing is prolonged; the water resistance is excellent, the high/low-temperature performance is excellent, and the operating temperature ranges from 40 DEG C below zero to 80 DEG C. The bearing grease disclosed by the invention can meet the lubricating requirements of hydraulic engineeringbearings, and the safety and hygiene requirements in the drinking water industry are met.

The invention discloses a molybdenum disulfide lubricating spray. The molybdenum disulfide lubricating spray comprises components in percentage by weight as follows: 15%-25% of molybdenum disulfide powder, 30%-40% of modified epoxy resin, 10%-20% of a quick-drying auxiliary, 2%-8% of a high-temperature-resistant auxiliary, 10%-20% of a coalescing agent and 5%-15% of a binding force enhancer. The molybdenum disulfide lubricating spray is simple and convenient to use, has good quick-drying capacity and temperature tolerance, can be applied to the ultrahigh temperature environment and the ultralow temperature environment and has good lubricating property, abrasion performance and extreme pressure resistance, and the temperature tolerance range is 180-450 DEG C.

The invention discloses lubricating grease and a preparation method thereof, and belongs to the technical field of lubricating grease and preparation thereof. The lubricating grease consists of the following raw materials: 95-99 parts of basic lubricating grease and 1-5 parts of additives. The additives are ZIF-71 materials with RHO topological structures. The preparation method of the lubricating grease is simple, convenient and practical, and the performance of the lubricating grease is stable. By the lubricating grease, surfaces of friction pairs can be prevented from being in contact with each other directly, friction is reduced, and the extreme pressure resistance of the lubricating grease is improved.

The invention discloses a titanium alloy rolling lubricating liquid based on core-shell structure SiO2 (at) Graphene quantum dots and a preparation method thereof The titanium alloy rolling lubricating liquid is specifically prepared from the following components in parts by weight: 1.5 to 2.5 parts of base oil, 1.5 to 2.5 parts of SiO2 and Graphene quantum dot powder, 90 to 96 parts of deionized water, 0.3 to 0.7 part of a surfactant, 0.8 to 1.2 parts of a dispersing agent, 0.8 to 1.2 parts of a sulfur-containing additive, 0.5 to 1.4 parts of an antioxidant and 0.5 to 1.4 parts of an auxiliary agent. The preparation method of the titanium alloy rolling lubricating liquid comprises the following steps: mixing and stirring SiO2 (at) Graphene quantum dot powder, base oil and deionized water, carrying out ultrasonic treatment, adding the dispersing agent, the sulfur-containing additive, the antioxidant and the auxiliary agent, and adjusting the pH value to alkalescence, thereby obtaining the titanium alloy rolling lubricating liquid. The SiO2 (at) Graphen core-shell structure particles are prepared by a hydrothermal method, take graphene as a core and nano silicon dioxide as a film-coated shell, and have the characteristics of high temperature resistance, lower friction coefficient and better extreme pressure resistance. The prepared rolling lubricating liquid has the advantages of being excellent in performance, lasting in efficiency and the like, and can be suitable for the field of cold rolling machining of titanium alloy ultra-thin plates.

The present invention relates to a lubricating grease, which comprises base oil, 12-hydroxystearic acid, lithium hydroxide, potassium hydroxide, petroleum calcium sulfonate, rosin, vegetable oil, (NH4)xMoS2, a first solid additive, a second solid additive, a first composite modifier comprising trioctylmethylammonium bromide, glycerol and polytetrafluoroethylene, a second composite modifier comprising diphenylamine, 2,6-di-tert-butyl and benzotriazole, and a third composite modifier comprising sulfurized cottonseed oil T404, bis(2-mercapto-4-n-propylamino-1,3,5-triazine)thioether and bis(2-mercapto-4-cyclopentylamino-1, 3,5-triazine)thioether. The lubricating grease of the present invention has advantages of good sealing performance, strong corrosion resistance, excellent anti-wear performance, and excellent anti-extreme pressure performance.

A disclosed novel extreme pressure-resistant cutting fluid is prepared from the following raw materials in parts by weight: 15-20 parts of glycerin, 5-15 parts of friction improver DAN-ZY-1, 3-7 parts of diethanolamine phosphate ester, 2-6 parts of maleic anhydride, 3-6 parts of sodium nitrite and 4-9 parts of methyl silicone oil. Compared with conventional lubricating oil, the novel extreme pressure-resistant cutting fluid has thixotropy, can be transformed from a paste into a liquid when conveyed to a to-be processed pipe fitting by an air powered pump or being stirred, is easy to convey and use, and helps to save the usage amount; the novel extreme pressure-resistant cutting fluid has extremely excellent permeability and is easy to clean; the novel extreme pressure-resistant cutting fluid has extremely good lubricity, heat-transfer cooling performance, stability, rheological property and extreme pressure resistance; and the novel extreme pressure-resistant cutting fluid helps to furthest reduce tapping cutting temperature and cutting force, improve tapping efficiency and precision, reduce workpiece roughness, improve surface quality and prolong screw tap service life.

The invention discloses wearing-resistant vehicle lubricating oil which comprises the following raw materials in parts by weight: 20-30 parts of polybutylene synthetic oil, 15-30 parts of corn oil, 8-15 parts of nano diamonds, 1-3 parts of poly-boron amine, 7-11 parts of oxymolybdenum dialkydithiophosphate, 2-6 parts of sodium citrate, 4-9 parts of polyimide, 6-12 parts of modified bentonite, 8-13parts of liquid paraffin, 9-15 parts of pentaerythritol, 5-14 parts of an antioxidant and 3-7 parts of an anti-corrosion anti-rusting agent. The wearing-resistant vehicle lubricating oil is scientific and reasonable in formula, a product made of the lubricating oil is excellent in extreme pressure resistance, high in bearing capability, high in wearing resistance and in addition high in low-temperature flowability, and excellent long-lasting lubrication properties can be achieved.

The invention provides 1,3,4-thiadiazole derivatives, a preparing method thereof and applications of the derivatives. Structures of the derivatives are characterized through infrared spectroscopy and nuclear magnetic resonance. Antifriction and extreme-pressure resisting properties of the derivatives as 150 SN base oil additives are evaluated in an SRV testing machine. Results show that the synthesized compounds have a good lubricating property, can effectively improve antifriction and extreme-pressure resisting properties of lubricating oil, and are lubricating oil additives with good properties. The compounds are synthesized by adopting 5-amino-2-mercapto-1,3,4-thiadiazole as a raw material. A reaction process is simple and easy to implement. The product yield is high. The production cost can meet requirements on industrial production. In addition, the 1,3,4-thiadiazole compounds have good antifriction and extreme-pressure resisting properties when being adopted as lubricating additives, and can be used as antifriction and extreme-pressure resisting additives for lubricating oil.

The invention provides a composite calcium sulfonate based lubricating grease for an open gear as well as a preparation method and application thereof, and belongs to the technical field of lubricating grease preparation. The provided composite calcium sulfonate based lubricating grease comprises the following components in percentage by mass: 67-72% of base oil, 11-15% of a composite calcium sulfonate thickening agent, 4.5-6.0% of an extreme pressure anti-wear additive, 1.5-3% of ethylene-propylene rubber, 0.4-0.5% of diphenylamine and 10-12% of graphite, and the sum of the mass percentages of the components is 100%, wherein the extreme pressure anti-wear additive comprises vulcanized olefin and petroleum calcium sulfonate; the composite calcium sulfonate is prepared from the following raw materials through a phase inversion reaction: high-base-number petroleum calcium sulfonate, isopropanol, calcium carbonate, glacial acetic acid and dodecyl benzene sulfonic acid. The provided composite calcium sulfonate based lubricating grease for an open gear has an excellent extreme pressure property and temperature resistance.

The invention provides a special cold ring rolling oil composition for bearing processing, wherein the special cold ring rolling oil composition comprises, by weight, 0.1-10% of an anti-oxidation anti-corrosion agent, 0.01-1.0% of an anti-rust agent, 5.0-50% of an extreme pressure anti-wear agent, and the balance of mineral base oil, and further comprises an antifoaming agent accounting for 0.001-0.1% of the total mass of the previous components. According to the present invention, the special cold ring rolling oil composition has advantages of good extreme pressure abrasion resistance, good oxidation resistance and good cooling property, and can be used for the lubrication of cold ring rolling equipment for producing bearing rings.

The invention provides polyaniline cutting fluid, belongs to the technical field of metal machining, and solves the problems of poor lubricating property and extreme pressure resistance of the existing polyaniline cutting fluid. The polyaniline cutting fluid comprises the following components by weight percent of 5-15 parts of water-soluble polyaniline, 10-15 parts of polyacrylamide, 2-4 parts of polyether polyol, 10-15 parts of triethanolamine, 5-10 parts of dibutyl phosphate, 5-10 parts of boric acid, 5-10 parts of silicone emulsion, and the balance of water. The polyaniline cutting fluid disclosed by the invention has good lubricating property and extreme pressure resistance besides good corrosion resistance and mildew-proof performance; and the maximal anti-bite load value is greater than 70kg.

The invention discloses a coupled dimercaptotriazine derivative, and a preparation method and a use thereof. 2,4,6-trichloro-1,3,5-triazine, amine and sodium bisulfide are adopted as raw materials and undergo substitution and coupling reactions to obtain the coupled dimercaptotriazine derivative. The coupled dimercaptotriazine derivative can be used through the combination with other lubricating greases and lubricating oil additives as an extreme-pressure anti-wear agent, and can also be individually used as a lubricating oil or a lubricating grease additive to make a lubricant have very good wear and extreme pressure resistances; the derivative in lithium-based grease can improve the PB value by 40-100% and reduce the wear scar diameter by 35-50%; and the derivative in rapeseed oil can improve the PB value by 45-65% and reduce the wear scar diameter by 25-45%.

The invention relates to a multi-effect lubricating oil additive, which is prepared from the following raw materials by weight: 6-10 parts of triethanolamine, 5-9 parts of ditert-butyl paracresol, 5-7 parts of sodium dodecyl benzene sulfonate, 3-6 parts of polyvinyl alcohol, 4-8 parts of nanometer silica, 3-6 parts of succinate, 1-5 parts of oleic acid, 4-10 parts of methyl acrylate, 5-10 parts of polyisobutylene succinimide, 3-6 parts of isopropanol, 1-4 parts of ethylene, 6-8 parts of zinc butyl octyl dithiophosphate, and 3-7 parts of molybdenum dibutyl dithiocarbamate. The multi-effect lubricating oil additive has the following beneficial effects that: the extreme pressure resistance of the lubricating oil can be improved, the good cleaning property and the good chemical stability are provided, and the service life of the lubricating oil can be prolonged.

The invention belongs to the technical field of lubricating compositions characterized by using mixtures of high molecular and non-high-molecular compounds as additives, and specifically relates to alubricating composition for a grinding roller bearing of a vertical mill and a tug wheel bearing of a rotary kiln. The lubricating composition is prepared from the following ingredients: synthetic oil, a bearing oil composite additive, an antirust agent, a metal deactivator and an anti-friction agent. The lubricating composition has excellent wear resistance, emulsification resistance and foam resistance.

The invention discloses anti-wear anti-friction gear lubricating oil and a preparation method thereof. The prepared anti-wear anti-friction gear lubricating oil has high maximum anti-seize duty valueand excellent extreme pressure resistance, the friction coefficient at the load of 500N is low, and the antifriction performance is improved. After nano-zirconia is subjected to synergistic treatmentwith phosphate by utilizing petroleum sodium sulfonate, the dispersion performance is greatly improved, the nano-zirconia is difficult to aggregate and can be stably dispersed in the lubricating oil,and the anti-wear anti-friction effect is improved; and by modifying the nano-zirconia by utilizing manganese dioxide, the wear resistance and extreme pressure resistance of the nano-zirconia are improved, the compatibility of the nano-zirconia and the lubricating agent substrate is further promoted, and the anti-wear anti-friction, anticorrosive and antioxidant effects of the lubricating agent are improved.