1187 results about "Lubricity" patented technology

The invention provides a polysilazane green special refractory ceramic coating and a preparation method thereof, and belongs to the field of ceramic coatings. The ternary core material composed of titanium carbide, zirconium boride and silicon nitride provides high hardness, oxidation resistance, thermal shock resistance and excellent thermal stability; the silicon dioxide-aluminum oxide composite shell layer remarkably improves the oxidation resistance and reliability of the coating through the synergistic oxidation resistance and crack self-repairing function; the multi-metal oxygen cluster network endows the coating with excellent electrical conductivity, thermal conductivity and corrosion resistance; the intercalated montmorillonite enhances the crack resistance and oxidation resistance through a layered structure and embedded active ions; and the boron nitride coated vanadium carbide particles provide lubricity, oxidation resistance and wear resistance. Through collaborative optimization of multiple components, the comprehensive performance of the coating is comprehensively improved in the aspects of oxidation resistance, thermal conductivity, interface stability, high-temperature performance, mechanical performance and the like, so that the coating shows excellent long-term stability and functionality in an extreme environment.

There is provided a sliding component that supplies a sealed fluid to a leakage side in a gap between sliding surfaces to exhibit high lubricity and has a small leakage of the sealed fluid. A sliding component that has an annular shape and is disposed in a place where relative rotation is performed in a rotary machine, includes a plurality of dynamic pressure generating mechanisms provided in a sliding surface of the sliding component, each of the dynamic pressure generating mechanisms including a deep groove portion that communicates with a leakage side, and a plurality of shallow groove portions that communicate with the deep groove portion and are arranged in a circumferential direction in parallel relationship to each other.

The invention relates to a stern bearing lubrication characteristic analysis method coupled with the influence of three-dimensional vibration of a stern shaft, and the analysis method comprises the steps: S1, inputting global parameters into a bearing lubrication performance and kinetic parameter calculation module and a propulsion shaft system vertical, horizontal and torsional three-dimensional vibration calculation module, and completing the corresponding calculation; s2, obtaining a bearing transfer matrix; s3, obtaining a system transfer matrix; s4, the forced vibration calculation module completes corresponding calculation; s5, a bearing relative position feedback module completes corresponding calculation; and S6, judging whether the calculation of one work cycle is completed or not, and storing and outputting the working characteristic result of the stern shaft-stern bearing in the cycle. By designing a bearing lubrication performance and kinetic parameter calculation module and a propulsion shafting vertical and horizontal torsion three-dimensional vibration calculation module, the vibration and lubrication coupling effect between a stern shaft and a stern bearing is fully considered, and a stern shaft vertical and horizontal torsion three-dimensional vibration and stern bearing lubrication characteristic bidirectional coupling model is established. And a vibration lubrication mutual feedback mechanism under a complex vibration condition is disclosed.

The invention relates to the technical field of rubber materials, in particular to a rubber composite material with self-lubricating and wear-resistant characteristics and a preparation method thereof. The rubber composite material with self-lubricating and wear-resistant characteristics is prepared from the following raw materials in parts by mass: 70 to 75 parts of nitrile rubber, 15 to 18 parts of carbon black, 30 to 35 parts of self-lubricating filler, 2 to 3 parts of plasticizer, 2 to 3 parts of zinc oxide, 2 to 3 parts of zinc stearate, 3 to 5 parts of coupling agent, 4 to 6 parts of self-lubricating additive, 1 to 1.5 parts of anti-aging agent, 1 to 1.5 parts of accelerant and 2 to 4 parts of vulcanizing agent. The prepared rubber composite material with self-lubricating and wear-resistant characteristics has excellent lubricating property, wear-resistant property and mechanical property. The method is suitable for the fields of automobile manufacturing, mechanical manufacturing, aerospace and the like.

The invention provides an enhanced heat conduction lubrication type ball bearing for an X-ray tube and a CT bulb tube. The enhanced heat conduction lubrication type ball bearing comprises a bearing sleeve, a sealing end cover, a bearing raceway, a fixing shaft, a sealing baffle and a ball. A bearing cavity for accommodating the bearing raceway is formed in the bearing sleeve, the bearing cavity is filled with liquid metal, gaps among the bearing raceway, the balls and the fixed shaft are filled with the liquid metal, and the fixed shaft is filled with a flowing heat dissipation medium; the two ends of the bearing sleeve are a closed end and an open end respectively, a sealing step is arranged at the open end, movable sealing grooves are formed in the end face of the sealing step and the end face of the sealing end cover, each movable sealing groove comprises two flow channels intersecting at an acute angle, and a sealing groove and a backflow hole communicated with the movable sealing grooves and the sealing groove are formed in the sealing end cover. The anode assembly has good lubricity, heat dissipation capacity and conductivity, the operation stability is improved, the service life is prolonged, and the heat dissipation power of the anode assembly is greatly improved.

The invention discloses a high-strength wear-resistant self-lubricating drill bit for a coal mine and a preparation method of the high-strength wear-resistant self-lubricating drill bit. The preparation process comprises the steps that a drill bit blank is prepared from low-alloy carbon structural steel, a high-strength and high-toughness matrix is obtained through thermal refining, and then sand blasting activation is conducted to clean and coarsen the surface. After diamond particles are subjected to acid pickling pretreatment, metal modified diamond composite powder is obtained through salt bath metal and reduction prefabrication. The preparation method comprises the following steps: mixing MoS2 with the carbon dioxide, spraying the mixture on the surface of a matrix through high velocity oxy-fuel to form a wear-resistant coating, and then improving the density and interface bonding strength of the coating through high-frequency induction instantaneous remelting, thereby finally obtaining the coal mine drill bit with high hardness, strong bonding force and self-lubricating performance. The metal modified diamond composite coating containing the metal transition layer and the MoS2 lubricating phase is constructed on the steel substrate, and a high-frequency remelting process is combined, so that the wear resistance, the bonding strength and the self-lubricating performance of the drill bit are synergistically improved, and the drill bit has the advantages of high strength and toughness matching and low cost.

The invention belongs to the technical field of textile assistants, and particularly relates to a polyester oiling agent for high-speed spinning, the polyester oiling agent comprises, by weight, 40-60 parts of a smoothing agent, 10-20 parts of an emulsifier, 5-20 parts of an antistatic agent, 5-10 parts of a bundling agent, and 5-15 parts of oil-containing lubricating particles, the oil-containing lubricating particles comprise a core suspension and a shell layer coating the outer side of the core suspension, and the shell layer is a polyester oiling agent. The core suspension comprises an oily dispersion medium and inorganic nano lubricating particles dispersed in the oily dispersion medium, and the shell layer is of a temperature-sensitive reversible cross-linked network structure. According to the polyester oiling agent for high-speed spinning, the anti-wear and anti-friction performance, the lubricating performance, the stability and the anti-agglomeration capacity of the oiling agent are improved by optimizing the adding mode of the nano particles.

The invention discloses a coaxial torque vector distribution system which comprises a differential mechanism and a vector motor, a motor shaft of the vector motor is hollowly sleeved on a left half shaft of the differential mechanism, and the motor shaft is in transmission connection with the left half shaft and the differential mechanism through a transmission assembly; the transmission assembly comprises a first planet row and a second planet row, the first planet row and the second planet row share the same planet carrier, a first gear ring of the first planet row is fixedly connected to the left half shaft, and a second gear ring of the second planet row is fixedly connected to the differential mechanism shell. The sun gear of the first planet row or the sun gear of the second planet row is fixedly arranged at the far end of the motor shaft. The differential mechanism has a torque distribution function, the double planet row systems share one planet carrier, and the rotating speed of the planet carrier is lower than that of the differential mechanism shell, so that the dragging torque is smaller, and the performance is higher; meanwhile, the gear ring is adopted for power output, the rotating speed of a transmission assembly of the whole system can be reduced, heat generation is greatly reduced, the problems of oil liquid oxidative deterioration, lubricating performance reduction, aging of rubber sealing pieces and the like are solved, and safety is improved to the maximum extent.

The present invention relates to the technical field of mechanical equipment, and specifically relates to a method and system for evaluating the lubrication reliability of industrial equipment, including the following steps: S1, collecting operation data: collecting the operation data of mechanical equipment; S2, evaluating lubrication performance: calculating the flow performance and lubrication performance of lubricating oil by using the Arrhenius model and the Barus model; S3, dynamic monitoring and adjustment of lubricating film thickness: implementing a technology for dynamically monitoring the lubricating film thickness, and real-time monitoring and adjusting the thickness of the lubricating film; S4, evaluating lubrication effect: evaluating the lubrication effect of lubricating oil under the current working conditions; S5, determining the reliability level: determining the reliability level of the lubricating oil; S6, proposing improvement measures: if the reliability of the mechanical equipment lubrication does not meet the preset standard, proposing improvement measures for the lubrication scheme. The present invention ensures that the mechanical equipment always maintains the best lubrication state under changing conditions, and reduces the risks caused by improper lubrication.

The invention relates to a diesel engine oil pan engine oil supply device and method, and relates to the technical field of diesel engines, the device comprises a filter element rotationally arranged in an oil pool body at one end of the bottom of an oil pan, a first driving mechanism is arranged above the filter element, and the first driving mechanism is used for driving the filter element to rotate through rotation of a crankshaft in an upper crankcase; purifying the engine oil through centrifugal separation; the device further comprises an oil supply pipe, one end of the oil supply pipe extends to the position below the filter element, the other end of the oil supply pipe extends to the crankshaft, and an oil supply pump used for conveying purified engine oil into the lubricating system is arranged on the oil supply pipe. The device further comprises a particle storage ring sleeving the upper part of the filter element. According to the oil supply device, the functions of lubricating additive particle storage, discharging, adding and the like are integrated in the oil pan and are tightly combined with the engine oil purification function, an efficient oil supply system is formed, the working efficiency and reliability of the whole lubricating system are improved, and the lubricating performance of engine oil can be greatly improved by adding the lubricating additive particles.

The invention discloses a wind-water combined heat dissipation method and device for a hydraulic station, and relates to the technical field of hydraulic heat dissipation control. The wind-water combined heat dissipation method comprises the steps that an expected die-casting plan of a target die-casting machine is read; an expected working load is determined, temperature rise trend prediction of oil liquid of the multiple hydraulic components is carried out, and multiple predicted oil temperatures are output; performing cooling demand analysis, and determining a plurality of initial cooling temperature values; carrying out lubrication performance attenuation analysis, compensating the plurality of initial cooling temperature values, and outputting a plurality of cooling temperatures; a wind-water combined heat dissipation twin model is constructed, heat dissipation parameter simulation optimization is carried out, and an optimized heat dissipation control strategy is output; and according to the optimized heat dissipation control strategy, heat dissipation control in the cooling backflow period is conducted on the target hydraulic station. The technical problems that in the prior art, heat dissipation accuracy and practicability are insufficient, and the working quality and working efficiency of the hydraulic station are affected are solved, and the technical effects that the heat dissipation accuracy and practicability of the hydraulic station are improved, and the working efficiency and working quality of the hydraulic station are improved are achieved.

The invention discloses a circulation system of aluminum wire drawing liquid, and relates to the technical field of metal processing, the circulation system comprises: a wire drawing device, which is provided with an immersion liquid box and an outlet die, and after entering the immersion liquid box for drawing, an aluminum rod is sized from the outlet die for molding; a filter is arranged in the wire drawing liquid pool, the filter is communicated with the immersion liquid box through a circulating pipe I, the circulating pipe I is connected with a heat exchanger, and the immersion liquid box is communicated with the wire drawing liquid pool through a return pipe; the cooling system is connected with the heat exchanger through a circulating pipe II; the filter is provided with at least one continuous filtering mechanism, and the continuous filtering mechanism is configured to trigger the continuous filtering mechanism to rotate to switch a new filtering structure when the water level in the filter rises. After the water-based aluminum wire drawing liquid is adopted, no smell is generated in the circulation process, and the surrounding environment of a machine table is clean and tidy. Meanwhile, after the aluminum powder is filtered and is drawn by a nano-mold, the lubricating property is good, and the surface of the aluminum wire is smooth and clean.

The invention discloses a preparation method of graphene-coated aluminum oxide nanoparticles and a reinforced copper-based composite material thereof, and belongs to the field of metal-based composite materials, graphite flakes are stripped into graphene through a wet ball-milling one-step method, the graphene coats the surfaces of aluminum oxide particles, then the graphene is mixed with nano copper powder, and the mixture is formed through a powder metallurgy process; according to the method, the traditional multi-step process is simplified, and the composite material has high wear resistance and excellent functional characteristics by utilizing the lubricity and electric conductivity / thermal conductivity of graphene, and is suitable for the high-end fields of heat dissipation of electronic devices, sliding bearings and the like.

The invention discloses a polymorphic graphite-carbide steel-based multiphase wear-resistant composite material and a preparation method and application thereof.The material is of a composite tissue structure of spheroidal graphite, three-dimensional coralline graphite, multiple carbides and a steel matrix, and the multiple carbides are M3C type carbides and MC type carbides. Comprising the core steps of component design, composite inoculant proportion design, smelting and inoculation treatment, subsequent heat treatment and the like, and is characterized in that synergistic precipitation of spheroidal graphite, three-dimensional coralline graphite and various and multi-size carbides is achieved through chemical component design and inoculation regulation and control; the invention further provides application of the material in high-impact, heavy-load or dry-friction working conditions of crushing or grinding equipment. The material provided by the invention has better comprehensive wear resistance under complex working conditions, has structural stability, impact resistance, lubricity and thermal stability, and has wide engineering application prospects in severe environments such as high impact, high load, dry friction and the like.

The invention discloses a novel three-screw pump with a driven screw independently limited, sealed and lubricated, belongs to the technical field of hydraulic delivery pumps, and aims to solve the problems that in an existing three-screw pump working structure, axial force generated by a driving screw and a driven screw is not matched uniformly, and actual use is limited. A convex extension shaft head is integrally manufactured at the rear tail end of a medium inlet low-pressure area of a left driven screw and a right driven screw which are meshed with two sides of a driving screw, a pressure bearing and a mechanical oil seal are mounted on the convex extension shaft head, and a bearing rear end cover is connected to an opening of a rear tailstock through a fixing screw. An inner concave cavity formed by connecting the bearing rear end cover with the rear tailstock, the pressure bearing and the mechanical oil seal alternately form an isolated and independent bearing sealing cavity, and the bearing sealing cavity is filled with lubricating grease for lubricating the pressure bearing. The hydraulic pump is practical in structure and suitable for hydraulic conveying of working media such as high-temperature asphalt with poor lubricating performance.

The present invention discloses a biomass-based ionic liquid-modified carbon quantum dots, a preparation method thereof, and a composite lubricant. The preparation method of the biomass-based ionic liquid-modified carbon quantum dots uses biomass raw materials, choline chloride, and amino acids to prepare carbon quantum dots and choline amino acid ionic liquid. The choline amino acid ionic liquid is used to modify the carbon quantum dots to produce a biomass composite lubricant. This uses renewable biomass resources instead of traditional petrochemical resources, is environmentally friendly, can be decomposed by nature, achieves clean production, and eliminates environmental pollution. The CQDs / ILs composite lubricant can function as "nanoballs," thereby improving its load-bearing capacity and reducing wear. In addition to having good lubricating properties, the choline amino acid ionic liquid also has good solubility. Modifying the carbon quantum dots with the choline amino acid ionic liquid not only improves the dispersibility of the carbon quantum dots but also further enhances their tribological properties.

The invention relates to the technical field of bearing pedestals, in particular to wind generating set bearing pedestal supporting equipment which comprises a shell, a main shaft is connected to the inner side of the shell in a sleeved mode, and the wind generating set bearing pedestal supporting equipment is characterized in that a material storage box is arranged on the upper surface of the shell, a material injection opening is connected to the top of the material storage box in a penetrating mode, and an oil conveying pump is connected to the bottom of the material storage box in a penetrating mode; the bottom of the oil delivery pump is connected with an oil delivery pipeline in a penetrating mode, the lower surface of the shell is connected with an oil well pump in a penetrating mode, the bottom of the oil well pump is connected with a storage cavity in a penetrating mode, the bottom of the storage cavity is symmetrically connected with ball valves in a penetrating mode, and the upper surface of the bottom of the shell is fixedly connected with a storage cavity. Old grease can be discharged through pressure, the residual old grease in the shell is completely removed, the situation that the lubricating performance is reduced due to the fact that the new grease and the old grease are mixed is avoided, the new grease can more evenly cover the surface of the bearing, an effective lubricating film is formed, and friction and abrasion are reduced.

The invention discloses a lubricating material for processing an oxidation-resistant PET (Polyethylene Terephthalate) product and a preparation method of the lubricating material, and relates to the technical field of preparation of PET lubricating materials. The lubricating material consists of 60-85 parts of a main lubricant, 5-20 parts of an auxiliary lubricant, 0.5-3 parts of an antioxidant and 2-10 parts of a dispersing agent. During preparation, powder with D50 smaller than or equal to 30 microns is prepared through a staged mixing process, a twin-screw extrusion melt blending process and a 10-20 DEG C / min rapid cooling process. 0.1%-1.5% of the material is added during PET processing, the light transmittance of a product reaches 90.8% or above, the haze is smaller than or equal to 1.4%, the oxidation induction period is prolonged to 30 minutes or above, meanwhile, the friction coefficient is reduced to 0.27 or below, and the material has excellent mechanical strength by utilizing the high bond energy characteristic of a C-D bond of the deuterated antioxidant and cooperating with a nano dispersion system. Through molecular structure design and process innovation, the technical problem that the light transmittance, oxidation resistance and processing lubricity of a traditional PET material are difficult to synergistically improve is solved.

The invention discloses a super-lubricating and corrosion-resistant DLC (diamond-like carbon) protective coating and a preparation method thereof, and belongs to the technical field of protective coatings. The coating is prepared on a base body through magnetron sputtering and magnetic filtering arc ion plating processes, a multi-layer composite structure is formed by doping transition metal elements and non-metal elements, and the multi-layer composite structure comprises a cleaning modification layer, a gradient transition layer, a combination strengthening layer, a main functional layer and a surface lubricating layer. Through element doping, the internal stress of the DLC coating is effectively reduced, the surface lubricity is enhanced, the bonding strength of the coating and a matrix is improved, and meanwhile the high hardness and excellent wear resistance of the DLC coating are reserved. In addition, the preparation process is simple, is suitable for industrial production, and can be widely applied to surface protection in the fields of molds, automobiles, aerospace and the like.

The invention discloses a bearing with stable lubricating performance, and relates to the technical field of bearing devices, the bearing comprises a static bearing and a dynamic bearing, the static bearing comprises a shell and a porous oil storage bushing, a sealing ring is arranged on one side of the porous oil storage bushing, an oil supplementing mechanism is arranged on one side of the sealing ring, and an auxiliary ring is arranged on one side of the oil supplementing mechanism; a movable bearing is arranged in the porous oil storage bushing and comprises a shearing shaft sleeve, a shaft wheel and supporting frames, the shaft wheel is arranged on the outer wall of the shearing shaft sleeve, the supporting frames are arranged on the two sides of the shearing shaft sleeve, the shearing shaft sleeve and the porous oil storage bushing are combined through the supporting frames, and one side of the shearing shaft sleeve is connected with an oil supplementing mechanism. An oil scraping plate and an oil outlet hole are integrated by rotating an oil supplementing arm, so that dynamic lubrication supply and pore self-cleaning are realized; by adopting the non-Newtonian fluid lubricant, the viscosity is improved under high-speed shearing, and the stability of an oil film under extreme working conditions is enhanced; the connecting block enables the oil supplementing system and the bearing to rotate synchronously, and self-adjusting lubricating circulation is formed.

A treadmill includes a walking board assembly, and a walking belt encircling the walking board assembly. The walking board assembly includes a support plate, a wear-resistant plate mounted on the support plate, and a wax layer mounted on the wear-resistant plate. The wear-resistant plate is made of wear-resistant material with a low friction coefficient. The wear-resistant plate has a bottom face abutting the top face of the support plate. The wear-resistant plate has a top face integrally formed with multiple grooves. The wear-resistant plate has a thickness less than that of the support plate. The wax layer is coated on and filled with the grooves of the wear-resistant plate. The wax layer has a coating height at least equal to the depth of each of the grooves.

The invention provides a method for achieving deep energy-saving sealing through a sealing ring, and relates to the technical field of sealing elements. The sealing performance and the service life of the sealing ring under high-temperature, high-pressure and complex working conditions are remarkably improved and prolonged through key technical means of material composite modification, a multi-stage sealing structure, intelligent installation feedback and running state online monitoring. Graphene and ceramic micro powder are added into a silicone rubber base material, and a low-friction PTFE coating is sprayed, so that the durability and the self-lubricating property of the material are improved; the sealing ring main body adopts a double-lip structure to be matched with the central supporting ring, so that the compression resistance and buffering capability are enhanced; the pressure sensor and the image recognition module are integrated, intelligent feedback control in the installation process is achieved, and the intelligent pressure sensor has the advantages of being low in sealing leakage rate, capable of reducing energy consumption, long in service life and high in intelligent degree, is suitable for various industrial application scenes of hydraulic systems, pneumatic actuators, valves and pipeline connection and has good popularization value and industrialization prospects.

The invention relates to the technical field of lubricating materials, and provides a super-lubricating amorphous carbon-based thin film as well as a preparation method and application thereof. The super-lubricating amorphous carbon-based thin film comprises a bonding transition layer, a carbide gradient layer and a composite hydrogen-containing amorphous carbon-based film layer which are sequentially arranged from bottom to top, the composite hydrogen-containing amorphous carbon-based film layer is a sulfide-doped hydrogen-containing amorphous carbon thin film, and sulfide is one or two of tungsten sulfide and molybdenum sulfide. The structure of the carbon-based thin film is regulated and controlled by doping a small amount of sulfide, compared with a traditional hydrogen-containing amorphous carbon-based thin film, the obtained super-lubricating amorphous carbon-based thin film shows more stable super-lubricating performance and more excellent wear resistance, a new solution is provided for surface protection of tribological parts, and the method is suitable for popularization and application. The method has important industrial application value.

The present invention provides an engine lubrication system cleaning oil, the ingredients include: 60-75% base oil and 25-40% functional additives; the base oil is a mixture of 400N base oil, 500N base oil and 650N base oil in any mass ratio; the functional additives include by weight: 1-5 parts of organic boron lubricant, 2-5 parts of cleaning dispersant, 0.3-1 parts of antioxidant, 5-15 parts of auxiliary agent, 0.1-0.5 parts of rust inhibitor, 0.0001-0.0005 parts of fatty amine and ethylene oxide condensate, 3-5 parts of carbon deposit cleaning agent and 4-8 parts of dispersant. The present invention adopts cycloalkyl base oil and organic boron lubricant with good lubricity, and adds carbon deposit cleaning agent and high-performance cleaning dispersant to prepare the engine lubrication system cleaning oil, which does not require a special cleaning machine during cleaning. Before changing the engine oil, the old engine oil is drained, and the cleaning oil is added to run rapidly for 10-15min to achieve the cleaning effect.

The utility model discloses an engine and a vehicle, the engine comprises a cylinder body, a timing cavity is formed in the cylinder body, and the cylinder body is provided with an oil pan located below the timing cavity; the cylinder cover and the cylinder body are connected and jointly define an oil return cavity, the oil return cavity is communicated with the timing cavity, an oil return hole is formed in the bottom wall of the oil return cavity, and the oil return hole is communicated with the oil pan; an oil return cavity bottom face distributed around the oil return hole is formed at the bottom of the oil return cavity, an oil return cavity oil weir protruding upwards is arranged on the oil return cavity bottom face, and oil on the inner side wall of the oil return cavity is suitable for flowing to the oil return hole after being shunted by the oil return cavity oil weir. According to the engine, oil storage dead areas can be prevented from being generated at cylinder covers on the two sides, the problem of oil stirring of a timing chain can be solved, the oil gas amount is reduced, the burden of a crankcase ventilation system is reduced, the protruding oil return cavity oil weir is arranged on the bottom face of the oil return cavity, the flow speed of oil in the oil return cavity can be further increased, and the service life of the engine is prolonged. The risk of low engine oil pressure is effectively avoided, and it is guaranteed that the whole machine has good lubricating performance.

The invention belongs to the field of bearing design theories, and discloses a full complement CARB bearing design method based on an elastohydrodynamic lubrication bearing model. The viscosity-pressure coefficient, the basic viscosity and the elastic modulus are integrated to oil film thickness calculation for the first time by establishing a joint objective function of the maximum dynamic load and the elastic flow lubrication minimum film thickness, and the dynamic load coefficient is adopted to correct the actual working condition deviation. A complete system containing 21 constraints is constructed, and five dimensions of geometric compatibility, contour matching, motion compensation, intensity life and manufacturing boundary are covered. The design variables including the curvature radius, the roller diameter and the pitch circle diameter are solved through a multi-objective optimization algorithm, collaborative maximization of the bearing capacity and the lubricating performance is achieved, and the problem that in a traditional design theory, curvature parameters are difficult to accurately determine is solved.

The application provides an acid ester composite diesel anti-wear agent and a preparation method thereof, and belongs to the technical field of diesel additives, and comprises the following steps: S1, preparing a silanized solid acid catalyst; S2, preparing C18 polyol ester; S3, mixing an acid type anti-wear component and the C18 polyol ester, and then stirring after heating, and then adding tetrahydropyrazole pyridine derivatives and a diluent to continue stirring, and then cooling and filtering to obtain the acid ester composite diesel anti-wear agent. The application can improve the lubricity and anti-wear performance of low-sulfur diesel at a lower additive dosage, and has low corrosion and good oxidation stability.

The invention relates to the field of processing aids and lubricants thereof, in particular to a plastic lubricant and a preparation method and application thereof.The preparation method comprises the following steps that firstly, dodecanedioic acid and pentaerythritol are added into a reaction kettle provided with a stirring device and a heating system; fully and uniformly mixing under the conditions that the temperature is 190-250 DEG C and the stirring speed is 300-500 revolutions per minute, so as to carry out dehydration esterification reaction, and continuously stirring until a chemical balancing state is achieved; and cooling to 150 DEG C, spraying powder and sieving to finally obtain the finished product plastic lubricant. The plastic lubricant disclosed by the invention can keep excellent lubricating property in a high-temperature environment, effectively reduce the viscosity of a plastic melt and remarkably improve the fluidity. Meanwhile, good thermal stability and chemical stability are achieved, it is ensured that no adverse reaction is generated when the coating is in contact with a plastic matrix, the environmental protection requirement is met, and pollution to the environment is avoided.

The invention relates to the technical field of high-end equipment design and intelligent manufacturing, and discloses a method, system and equipment for determining the lubricating performance of a sliding bearing and a medium. The method comprises the following steps: acquiring geometric parameters, working condition parameters and lubricant parameters of the sliding bearing, and establishing a Reynolds equation for describing an oil film flow field of the sliding bearing; representing a function for describing the oil film pressure of the sliding bearing through a neural network; establishing a loss function according to the satisfaction degree of the output of the neural network to the physical constraint, the boundary constraint and the load constraint of the sliding bearing; taking the eccentricity rate and the load angle of the sliding bearing as training parameters of a neural network, training the neural network by adopting a loss function, and continuously updating the training parameters in the training process; and determining the oil film pressure of each space point of the sliding bearing through the trained neural network, and determining the lubricating performance of the sliding bearing according to the determined oil film pressure and training parameters used by the trained neural network so as to overcome the solving problem of a numerical method.

The invention discloses an insulation method of high-performance self-lubricating metal soft magnetic powder, which comprises the following steps: activating metal soft magnetic powder through a complexing agent, modifying MXene through a silicon source, and then putting the activated metal soft magnetic powder and the modified MXene material into an insulation liquid together for insulation treatment to obtain the high-performance self-lubricating metal soft magnetic powder. And finally, the insulating metal soft magnetic powder with excellent magnetic performance and self-lubricating performance is obtained. The insulating metal soft magnetic powder prepared according to the method disclosed by the invention has relatively high direct current bias performance and relatively low magnetic core loss, shows excellent comprehensive magnetic performance, also has good self-lubricating performance and excellent binding force, and can be used for remarkably improving the formability and the mechanical property of the insulating powder.