529 results about "Lubricity" patented technology

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 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 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 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 application relates to a high-strength wear-resistant polyamide material and a preparation method thereof, and belongs to the technical field of polyamide materials. The high-strength wear-resistant polyamide material comprises the following raw materials in parts by weight: 65-80 parts of a polyamide matrix material, 0.5-1 part of a lubricating dispersant, 10-15 parts of wear-resistant master batches, 5-8 parts of modified silica sol, 10-15 parts of modified glass fibers and 0.2-0.5 parts of an antioxidant. The application combines self-lubricating property and high hardness by adding a wear-resistant agent which is chemically bonded to the polyamide matrix material, and further adds the modified silica sol and the modified glass fibers as fillers to synergistically improve the wear resistance of the polyamide, so that the polyamide material with high strength and good wear resistance is obtained by the joint action of the other components.

The utility model relates to the technical field of electric actuators, and discloses an anti-surge electric actuator with an anti-jamming mechanism, which comprises a front control seat, the rear end of the front control seat is connected with a rear control seat, a main shaft is inserted into the top of the rear control seat, a hand wheel is mounted at the top of the main shaft, and the anti-jamming mechanism is mounted on the hand wheel. A separable sleeve shaft is installed in the rear control base, and an auxiliary worm wheel is arranged outside the separable sleeve shaft. According to the utility model, the anti-locking structure is arranged, so that the rotating motor in the rear protective cover drives the auxiliary rotating wheel and the rotating worm to rotate during use, and the rotating worm drives the auxiliary worm gear outside the separable sleeve shaft to be engaged; before and after use, grease can be injected into the oil storage box through the conveying pipe via the rubber plug at the rear end of the rear control seat, then the grease in the oil storage box is immersed into the oil absorption cotton layer and then drips between the rotating worm and the auxiliary worm gear, the lubricity between the auxiliary worm gear and the rotating worm is improved, and therefore the anti-jamming function is achieved.

The utility model provides equipment for detecting the content of a residual antioxidant in industrial lubricating oil during working, and belongs to the technical field of detection equipment. Comprising a fixing rod, a stabilizing rod clamped at the bottom of the fixing rod, a moving groove formed in an inner cavity of the fixing rod, a fixing column inserted in the center of the moving groove, an adjusting assembly arranged on the side surface of the fixing column in a sleeving mode, a rotating assembly fixedly installed on the side wall of the adjusting assembly, and a detection assembly rotationally installed on the inner surface of the rotating assembly. Through cooperative use of the adjusting assembly, the rotating assembly and the detection assembly, the content of the residual antioxidant in the industrial lubricating oil is accurately detected, the detection accuracy and reliability are improved, meanwhile, through mutual cooperative use of all the structures, on one hand, maintenance of the industrial lubricating oil is facilitated, and on the other hand, the detection efficiency is improved. And on the other hand, the stability and durability of the equipment are enhanced, so that the lubricating performance of the industrial equipment is effectively guaranteed, the service life of the equipment is prolonged, and the maintenance cost is reduced.

The invention discloses a MoS2-TiO2-polyimide composite film material and a preparation method thereof, and belongs to the technical field of polymer-based composite film materials. According to the preparation method, TiO2 nanowires are vertically grown on the surfaces of MoS2 nanosheets in an in-situ manner through MoS2-TiO2 hybridization, meanwhile, a strong heterojunction structure is constructed, a firm chemical bonding interface is formed, the excellent lubricating property of MoS2 and the excellent wear resistance and high bearing capacity of TiO2 are integrated, and functional complementation and synergistic enhancement are achieved; meanwhile, a polyimide matrix is bridged through a zinc ion coordination bond, the material is endowed with excellent mechanical strength and toughness, and due to the integrated design of lubrication, wear resistance and bearing, the material has the unique advantages of low friction coefficient, high wear resistance and high load at the same time; tests show that the MoS2-TiO2-polyimide composite film material has excellent photothermal conversion performance, mechanical property, thermal property and self-lubricating property.

A method of improving the lubricity of a diesel fuel composition, the method comprising admixing into the composition: (a) at least one ester, amide or imide compound; and (b) at least one small, functionalised aromatic compound.

The utility model discloses a casting nozzle for cast rolling of aluminum alloy and a cast rolling device. The casting nozzle for cast rolling of the aluminum alloy comprises a casting nozzle base body. The at least two graphite plates are respectively arranged on the top end surface and the bottom end surface of the first end position of the casting nozzle base body; the at least two extension parts are arranged at the first end of the casting nozzle base body and located on the two sides of the sprue gate respectively; the at least two graphite blocks are arranged on the side surface of the extension part; the casting nozzle base body is installed between the upper roller and the lower roller, in the rotating process of the upper roller and the lower roller, the graphite plate and the graphite block have good lubricity and can be abraded by friction, and therefore the casting nozzle base body and the extending part can be conveniently and fast suitable for an installation gap between the upper roller and the lower roller, use is convenient and fast, and in addition, the casting nozzle base body is convenient to install. The graphite blocks have good lubricity, friction force between the plate strip located between the two graphite blocks and the graphite blocks is small, and edge cracks of the plate strip can be eliminated.

The present application belongs to the technical field of marine engine bearing bush coating, and discloses a composite treatment method for the surface of a marine heavy-duty engine bearing bush, which comprises bearing bush substrate pretreatment, electroplating treatment, electroplating post-treatment and spraying treatment. The present application breaks through the limitation of single surface treatment technology, uses a tin-nickel alloy electroplating layer as the bottom layer to provide the bearing bush with good basic strength, toughness and impact resistance, and uses a spraying layer containing solid lubricants such as molybdenum disulfide and graphite as the surface layer to endow the bearing bush with excellent compliance, embeddability and self-lubricating performance. The combination of the two perfectly solves the technical problem that the traditional process cannot simultaneously consider strength and surface performance, and is particularly suitable for the complex working conditions of frequent start-stop and power overload of marine heavy-duty engines.

A method of improving the lubricity of a diesel fuel composition, the method comprising admixing into the fuel composition: (a) at least one ester lubricity additive; and (b) at least one aromatic compound including a single carboxylic acid functional group.

The invention discloses an MAX-phase high-temperature self-lubricating ceramic material and a preparation method thereof. According to the preparation method, HfC is added into an Nb4AlC3 material, and the ceramic material Nb4AlC3-HfC with the high-temperature lubricating property is prepared through ball milling, sieving, pre-pressing and sintering. Compared with the Nb4AlC3, the Nb4AlC3-HfC ceramic material has the advantage that the mechanical property, the oxidation resistance and the high-temperature self-lubricating property of the Nb4AlC3-HfC ceramic material are obviously improved. Due to the addition of HfC, Nb4AlC3 generates Al2O3 and HfO2 at a high temperature, Al2O3 has lubricity, and HfO2 can fill pores of a lubricating film, so that the lubricating film is more compact, thermal expansion matching is adjusted to reduce thermal stress and reduce cracking and peeling of the lubricating film; meanwhile, due to the high hardness characteristic of HfO2, the abrasion resistance of a matrix is improved, and the overall lubricating performance is further enhanced.

The application provides a salt-preventing ocean high-pressure water pump port ring structure based on coupled oscillation, and belongs to the technical field of ocean water pump equipment, and comprises a pump body port ring and an impeller port ring, and an annular gap is formed between the two; a nozzle-shaped first groove is arranged on the inner circumferential surface of the pump body port ring, and a second groove with an inclined wall surface and a backflow channel is arranged on the outer circumferential surface of the impeller port ring; the first groove and the second groove are connected to form a fluid oscillation channel. Through the matching design of the circumferential interval of the groove and the rotating speed of the impeller, the groove connection-separation frequency reaches the ultrasonic frequency band, and double coupling of fluid self-excitation oscillation and ultrasonic vibration is realized. The application effectively prevents salt deposition under the premise of not changing the existing lubrication mode, and significantly improves the water film lubrication performance and the service life of the equipment.

This invention discloses a composite thermal spray powder for wear-resistant coatings and its preparation method, relating to the field of thermal spray materials technology. The composite thermal spray powder for wear-resistant coatings comprises, by weight, the following components: 18-26 parts of a metal matrix material, 54-66 parts of a hard reinforcing phase, 8.5-12.5 parts of nano-Ti powder, 2.6-3.3 parts of a reactive carbon source, 0.8-1.5 parts of a buffer carbon source, 0.8-1.2 parts of a transient liquid phase additive, 1.5-2.5 parts of a lubricating functional component, and 0.5-1.5 parts of a modified coating material. The composite thermal spray powder for wear-resistant coatings provided by this invention has the following beneficial effects: precise and stable introduction of the reinforcing phase, and stable self-lubricating properties.

The utility model provides an adjustable induced draft fan impeller blade handle shaft anti-falling bush, which relates to the technical field of bushings, and comprises a hub, blades and a flange, and the outer end part of the hub is provided with a blade handle hole. The wear-resistant composite flange bushing with the flange structure is arranged between the flange and the hub, and the flange is mounted on the inner side of the blade handle hole, so that when a centrifugal force is generated during operation of the fan rotor, the flange directly blocks the flange bushing from moving outwards, the effect of the centrifugal force on the flange bushing is counteracted, the flange bushing is effectively prevented from falling off from the blade handle hole, and the service life of the fan rotor is prolonged. The problems of rotation jamming of the blade handle shaft, failure of a blade adjusting function, drifting of movable blades, aggravation of equipment operation vibration and the like caused by falling of the flange lining are avoided, safe and stable operation of a unit is guaranteed, meanwhile, the flange lining is made of a composite material, the composite material has self-lubricating performance and abrasion resistance, the lubricating effect of the blade handle shaft when the blade handle shaft rotates in the blade handle shaft hole is guaranteed, and the service life of the blade handle shaft is prolonged. Friction loss is reduced, and the service life of parts is prolonged.

The invention relates to the technical field of sliding materials for seismic mitigation and isolation supports, and particularly discloses a self-lubricating wear-resistant composite material for a building seismic mitigation and isolation support and a preparation method of the self-lubricating wear-resistant composite material. The self-lubricating wear-resistant composite material for the building shock absorption and isolation support comprises the following raw material components: aliphatic polyketone, polytetrafluoroethylene, high polystyrene resin modified methyl vinyl silicone rubber, silicone resin, solid lubricating particles, silicone oil, a compatilizer, an antioxidant, a stabilizer and a coupling agent. The solid lubricating particles comprise the following raw material components: tungsten disulfide and hexagonal boron nitride. The self-lubricating wear-resistant composite material for the building shock absorption and isolation support prepared by the invention can keep a low and stable friction coefficient and excellent wear resistance for a long time, the dependence on external lubricating grease is remarkably reduced, and the technical problems that the self-lubricating performance of an existing support material is quickly attenuated, the maintenance is frequent and the cost is high are solved.

The utility model relates to the field of operation machinery, and discloses a planetary gear mechanism, a gearbox and operation machinery. The planet carrier comprises a disc part arranged outside the sun gear shaft in a sleeving mode, a gear supporting shaft vertically connected to the disc part and an oil guide cylinder vertically connected to the disc part, a cylinder cavity of the oil guide cylinder forms a cylinder oil channel used for guiding lubricating oil to flow, and a cylinder notch communicated with the cylinder oil channel and arranged towards the sun gear is formed in the peripheral wall of the oil guide cylinder; and the planetary gear is rotatably arranged outside the gear supporting shaft in a sleeving manner and is meshed with the sun gear. According to the planetary gear mechanism, the lubricating effect on the meshing position of the sun gear and the planetary gear can be effectively improved, so that the lubricating performance of a gearbox is improved, heat produced by the gearbox is reduced, and then the upper limit of the running speed of an operation machine is improved.

The application provides a microcapsule and kaolin composite reinforced self-lubricating fabric gasket material and application thereof, and relates to the technical field of lubricating materials.The application provides a tung oil-methyl etherified melamine resin microcapsule, which comprises tung oil and methyl etherified melamine resin wrapped on the surface of the tung oil, and the methyl etherified melamine resin is formed by cross-linking polymerization of methyl etherified hexamethylol melamine.The tung oil is wrapped by the methyl etherified melamine resin, so that the excellent lubricating performance of the tung oil is retained, the dispersion problem of the tung oil in the resin is solved, and the oxidation reaction of the tung oil is inhibited.The tung oil-methyl etherified melamine resin microcapsule and amino kaolin are simultaneously introduced into the self-lubricating fabric gasket material, and the synergistic reinforcing effect of the tung oil-methyl etherified melamine resin microcapsule and the amino kaolin is exerted, so that the wear resistance and the lubricating performance of the self-lubricating fabric gasket material are effectively improved.

To provide a lubricant composition for plastic working that enables processing without a chemical conversion coating even in severe plastic working such as forging of steel or stainless steel and that forms a coating exhibiting excellent working lubricity even when exposed to a moisture-absorbing environment.SOLUTION: A lubricant composition for plastic working comprises a polymer A having a polyamide chain and a polyalkylene oxide chain within one molecule, and one or more inorganic substances B selected from a smectite clay mineral and an inorganic oxide represented by aMxOy-bSiO2-cH2O, where a, b, and c are rational numbers satisfying 0≤a≤3, 0≤b≤4, 0≤c≤5, and 1≤a+b, x and y satisfy x=2 and y=1, or x=y=1, or x=2 and y=3, and M is Mg or Al.SELECTED DRAWING: Figure 1

A wear-reduction corrosion inhibitor includes a base corrosion inhibitor, having a fatty acid, and a lubricity additive, having an ester-based lubricant. In one aspect, a method is disclosed for treating downhole equipment within a well with a wear-reduction corrosion inhibitor. The method includes the steps of preparing a wear-reduction corrosion inhibitor by combining the base corrosion inhibitor and the lubricity additive, then pumping the wear-reduction corrosion inhibitor into an annulus of the well and flushing the annulus with water.

A gas bearing device supports a rotating shaft rotatably with gas as a working fluid, wherein: a housing through which the rotating shaft penetrates; a ring-shaped top foil provided inside the housing and surrounding an outer periphery of the rotating shaft; a return spring provided between the top foil and the housing, and provided with a plurality of peaks that abut against the top foil and a plurality of valleys that abut against the housing; and a pair of clamping rings that are inserted into a shaft hole of the housing through which the rotating shaft penetrates, restrict movement of the return spring in an axial direction of the rotating shaft, and have a self-lubricating inner peripheral surface.

The application relates to the field of lubricating oil, in particular to a high-temperature-resistant high-lubricating stainless steel cutting oil and a preparation method thereof. The cutting oil is composed of base oil, extrusion agent, additive, anti-emulsifier and diluent in specific proportions, wherein the additive comprises polyisobutylene succinic anhydride, amine and propylene oxide polymer, boron-containing compound, basic alkyl salt, imidazoline oleate, antioxidant compound and ethylene-propylene copolymer. By optimizing the proportions of various components and selecting suitable materials, the application can significantly improve the oxidation resistance and cleanliness of the cutting oil, effectively prolong the temperature of the cutting oil in the recycling and reuse process, reduce equipment wear and contamination, and improve the production efficiency of stainless steel.

The invention discloses a coating material with wear resistance and self-lubricating performance as well as a preparation method and application of the coating material. The method comprises the following steps: mixing wear-resistant metal-based powder with high-temperature gas-producing high-molecular organic matter powder to obtain coated composite powder; spraying the coated composite powder onto a base material by using a plasma spraying technology to obtain a coating with a porous structure; and immersing the coating with the porous structure into a suspension containing a self-lubricating two-dimensional material, and depositing the two-dimensional self-lubricating material into the porous structure under the action of ultrasonic treatment to obtain the coating material with both wear resistance and self-lubricating performance. A porous wear-resistant framework is constructed through plasma spraying, the porous coating is obtained, and the two-dimensional self-lubricating material is embedded into pores of the porous coating by combining an ultrasonic deposition technology, so that the coating has the characteristics of high bearing capacity and low friction at the same time. The technology can effectively solve the problems that a traditional wear-resistant coating is high in friction coefficient and a self-lubricating coating is insufficient in wear resistance.

The invention discloses a cutter composite coating, a preparation method and a cutter, and relates to the technical field of material surface treatment. An AlTiTaN base serves as a base layer attached to a tool base body, a tetrahedron amorphous carbon film layer serves as a functional top layer, and a transition layer with the AlTiTaN base / carbon element proportion gradually changing is arranged between the base layer and the top layer and serves as a supporting and combining part. The problem that in the prior art, due to the fact that the interface bonding force between a tool base body and a strengthening coating is weak, and the internal stress is large, the service life of a tool is short or the machining quality of the tool is poor is effectively solved. Besides, an innovative low-temperature deposition process is further developed for the coating, temperature contradiction in the deposition process is effectively coordinated, firm combination with the top layer can be achieved on the premise that the performance of the AlTiTaN base layer is not sacrificed, and the service life of the AlTiTaN base layer is prolonged. Therefore, the comprehensive performance coating with ultrahigh wear resistance, excellent lubricity, high bonding strength and long service life and the corresponding cutter are obtained.

The application belongs to the technical field of cutting oil, and specifically provides a kind of composite cutting oil and a preparation method thereof.A kind of composite cutting oil uses coconut oil, mineral oil, poly-alpha olefin as mixed base oil, adds specific amount of rust preventive, polyethylene glycol, nano molybdenum disulfide, antioxidant, dispersant and composite additive obtained by chemical combination of carboxylated multi-walled carbon nanotube surface and thiophosphate amine salt, etc., through the synergistic effect of multiple components, the prepared cutting oil has excellent lubricity, extreme pressure and wear resistance, and is suitable for severe extreme pressure cutting environment.

This invention discloses a processing method for a metal-polymer composite self-lubricating bearing material, comprising six steps: pre-processing, metal matrix pretreatment, polymer lubrication layer preparation and composite molding, post-processing, performance testing and quality control, and packaging and storage. This invention solves the problems of poor product consistency, low pass rate, insufficient bonding force, and numerous molding defects in existing processing methods. It achieves standardized processing procedures and precise parameters, taking into account both the mechanical and lubrication properties of the material, adapting to the needs of mass production, and improving product quality and production economy.

The application discloses a gradient diamond / molybdenum disulfide composite self-lubricating wear-reducing engineering ceramic coating and a preparation method thereof, belongs to the technical field of full ceramic self-lubricating wear-resistant coatings, and the coating is sequentially formed of a multi-stage size progressive diamond coating and a molybdenum disulfide coating from the surface of an engineering ceramic substrate to the outside. The multi-stage size progressive diamond coating comprises a micron diamond coating, a fine-grained diamond coating and a nano diamond coating, and the molybdenum disulfide coating is deposited on the diamond coating. The diamond coating is prepared by using a hot-wire chemical vapor deposition method, and the molybdenum disulfide film covering the diamond coating is prepared by using a direct-current magnetron sputtering method. Under certain conditions, the molybdenum disulfide in the composite coating reacts with the nano diamond and is converted into onion-like carbon, so that the hardness and lubricating performance of the composite coating are improved, and the friction and wear are reduced. The composite coating prepared by using the method has more stable bonding force and adhesion, and the service life of a machine is improved.

The utility model relates to the technical field of engines, and discloses a plane tappet, an engine valve mechanism, an engine system and a vehicle, the plane tappet comprises a base and a tappet body, the tappet body is located on the side, away from a contact face, of the base, and the top end of the tappet body is used for abutting against a push rod; an oil passing channel is formed in the plane tappet, a first opening and a second opening are formed in the two ends of the oil passing channel respectively, the first opening is located in the top end, and the second opening is located in the contact face. In the working process, engine oil flows to the top end of the tappet body, then flows into the oil passing channel through the first opening and finally flows out of the second opening. Therefore, due to the arrangement of the oil passing channel, it can be guaranteed that enough engine oil flows to the gap between the contact face and the cam shaft, the lubricating performance between the plane tappet and the cam shaft is improved, and then the working efficiency of an engine valve mechanism is improved.

The utility model relates to the technical field of engine production, concretely is a kind of adjustable clamping device for cylinder body, including clamping device ontology, cylinder, connecting rod and clamping arm, connecting plate is installed between the connecting rod of left and right sides, the inner wall of connecting plate is equipped with bearing, the inner ring wall of bearing is equipped with central shaft, storage tank is set up in the inside of central shaft, oil outlet hole is set up in the bottom of storage tank both sides, sponge block is installed in the lower part outside of central shaft, input hole is set up in the front side of storage tank, the inside of central shaft both sides is set up and moves groove, and the inner wall of moving groove is slidably connected with moving plate;Through lubricant, from storage tank, penetrate to the surface of sponge block through oil outlet hole and be adsorbed, when bearing rotates, the lubricant of adsorption can effectively enhance the lubricating property between connecting plate and central shaft, to extend component service life and promote the overall efficiency of clamping device.