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Copper bar machining and drawing device based on self-lubricating mechanism
InactiveCN119608805AImprove convenienceeasy to wearCleaning using toolsExtrusion cleaning devicesMachiningRotating disc
The copper bar machining and drawing device based on the self-lubricating mechanism comprises a base, the top of the base is fixedly connected with a treatment barrel, the interior of the treatment barrel is rotationally connected with a rotating disc, and the two sides of the rotating disc are provided with an impurity removing assembly and an oil coating assembly correspondingly; according to the device, impurity removal treatment before the copper rod is oiled is achieved through the impurity removal assembly, meanwhile, the effect of independent annular cutting machining on the end of the copper rod can be additionally achieved, so that the convenience of drawing machining is improved, then the device is combined with the oiling assembly, lubricating oil is extracted and sprayed to the surface of the copper rod after impurity removal, the independent lubricating effect is achieved, and the machining efficiency is improved. The oil absorption sponge is driven to make contact with the copper bar and intermittently extruded, excessive lubricating oil is adsorbed and intercepted to prevent waste, the lubricating oil is evenly coated, the efficient self-lubricating effect is achieved, and continuous self-impurity-removal type lubricating drawing machining of the copper bar is achieved under cooperation of the drawing assembly.
Owner:NANTONG XIONGTAI COPPER CO LTD
Wear-resistant high-strength composite polyurethane sieve plate and preparation method thereof
The invention discloses a wear-resistant high-strength composite polyurethane sieve plate and a preparation method thereof, and belongs to the technical field of polyurethane sieve plate processing.The preparation method comprises the following steps that modified polyurethane is added into xylene, the temperature of a reaction system is increased to 90-100 DEG C, stirring is conducted till the system is dissolved and clarified, and a polyurethane sieve plate is obtained; the preparation method comprises the following steps: adding olefin double bond modified aluminum oxide powder and a catalyst into a reaction system, taking composite polyurethane prepared from modified aluminum powder reinforced modified polyurethane as a polyurethane sieve plate base material, and carrying out reinforced crosslinking on the composite polyurethane by using o-cresol formaldehyde epoxy resin and modified nylon fiber; the strong acid and alkali corrosion resistance of the composite polyurethane sieve plate is effectively improved, and the service life of the composite polyurethane sieve plate is effectively prolonged.
Owner:ANHUI YIXIANG FILTER MATERIAL CO LTD
Low-temperature curing lubricating coating for fan bearing and preparation method of low-temperature curing lubricating coating
ActiveCN119119838Acompact structurehigh hardnessPolyurea/polyurethane coatingsPolyether coatingsEpoxyPolymer science
The invention relates to the technical field of lubricating coatings, in particular to a low-temperature curing lubricating coating for a fan bearing and a preparation method of the low-temperature curing lubricating coating. The lubricating coating is prepared from the following components in parts by weight: 55 to 65 parts of mixed solvent, 10 to 15 parts of composite bonding resin, 10 to 15 parts of modified lubricating filler, 8 to 12 parts of wear-resistant filler, 0.5 to 3 parts of dispersing agent, 0.5 to 1 part of micronized dicyandiamide, 0.5 to 2 parts of flatting agent, 0.5 to 2 parts of defoaming agent and 0.5 to 1 part of anti-settling agent, wherein the composite bonding resin is prepared from the following components in parts by weight: 10 to 20 parts of organic silicon resin, 15 to 30 parts of novolac epoxy resin, 15 to 30 parts of urethane acrylate and 35 to 45 parts of polyhydroxy polyether resin; the modified lubricating filler is obtained by modifying mixed powder containing molybdenum disulfide and polytetrafluoroethylene. The adhesive force, the wear resistance and the lubricating property of the lubricating coating can be improved, and the curing temperature can be reduced.
Owner:XIAN RARE METAL MATERIALS RES INST CO LTD
Efficient oil injection mechanism of aluminum plate cold-rolling mill
InactiveCN119259714Aavoid offsetImprove flatnessWork lubrication devicesMetal rolling arrangementsElectric machineTransmission belt
The invention discloses an efficient aluminum plate cold-rolling mill oil injection mechanism, and relates to the technical field of aluminum plate cold-rolling mill oil injection, the efficient aluminum plate cold-rolling mill oil injection mechanism comprises a machining table, a transmission roller is fixedly mounted on the inner wall of the machining table, a motor is fixedly mounted on the outer wall of the machining table, and a pressing roller is fixedly mounted at the output end of the motor; the anti-deviation device is arranged on the inner wall of the machining table and comprises a lubricating box, a spraying opening, a supporting frame, a linear motor, a sliding plate, a sensor, a servo motor, a conveying wheel, a push plate, a guide plate, a fixing frame, a trapezoidal block and a deburring rod. The servo motor moves in the direction close to the middle of the conveying roller to drive the conveying wheel to move in the direction close to the middle of the conveying roller, the conveying wheel moves in the direction close to the middle of the conveying roller to be matched with the conveying belt to correct the aluminum plate, and the situation that the aluminum plate deviates during oil injection, consequently, lubricating oil cannot effectively cover the aluminum plate, and follow-up pressing roller rolling is affected is prevented.
Owner:ANHUI MEIXIN ALUMINUM CO LTD
Polysilazane composite coating as well as preparation method and application thereof
PendingCN119220177AImprove wear resistanceSolve the brittleLiquid surface applicatorsCoatingsSilazanePolysilazane
The invention belongs to the technical field of protective coatings, and provides a polysilazane composite coating as well as a preparation method and application thereof. According to the polysilazane composite coating disclosed by the invention, the elastic polymer is used as a toughening agent, so that the toughening effect on polysilazane can be achieved, and the problem of high brittleness of polysilazane is solved; and by using the flexibilizer, the internal stress of the polysilazane composite coating formed by the polysilazane composite coating can be reduced, and the cracking of the polysilazane composite coating is avoided, so that the polysilazane composite coating can be thickly coated. Alcohol substances and / or ester substances are used as the lubricant, so that the lubricity and wear resistance of the polysilazane composite coating formed by the polysilazane composite coating can be improved. And by using the two-dimensional composite material, the wear resistance and corrosion resistance of the polysilazane composite coating formed by the polysilazane composite coating can be obviously improved, and meanwhile, the polysilazane composite coating can be endowed with a lubricating function.
Owner:YANTAI ZHONGKE RES INST OF ADVANCED MATERIALS & GREEN CHEM ENG +1
Harmonic deceleration built-in motor with circulating lubrication function
PendingCN119543530AExtended service lifeprecision lubricationGearingGear lubrication/coolingNeedle roller bearingElectric machine
The invention discloses a harmonic speed reduction built-in motor with a circulating lubrication function. The harmonic speed reduction built-in motor comprises a center shaft, an electronic stator assembly, a motor rotor assembly, a wave generator, a first motor shell, a first gasket, a flexible gear, a second gasket, a controller shell, a controller, an output flange plate, a crossed roller bearing, a rigid gear, a needle bearing and a second motor shell. Lubricating oil liquid is accurately conveyed to the position between the flexible gear and the rigid gear in an outer circulation mode, precise lubrication is achieved, the oil liquid can be cooled, the lubricating effect is good, and the service life of the middle motor is prolonged.
Owner:SUZHOU WANJIA ELECTRIC
Production method for reducing slag runners in spring steel square billet casting process
The invention discloses a production method for reducing slag runners in a spring steel square billet casting process, which specifically comprises the following steps: the superheat degree of continuous casting molten steel is 20-40 DEG C, slag is automatically added into a continuous casting square billet, and casting powder is conveyed into a crystallizer by taking compressed air as a carrier, so that a high-concentration compressed air atmosphere at an upper opening of the crystallizer is ensured, and the casting quality is improved. And a combustion-supporting effect is achieved on the casting powder, so that the melting effect of the casting powder is improved. And the insertion depth of the submersed nozzle is 70-80mm, so that the higher temperature of molten steel on the meniscus of the crystallizer is ensured, and the slag surface melting effect is improved. The slag line is not changed in the casting process; the crystallizer uses vibration parameters with high vibration frequency and high amplitude, so that the negative slippage time and the vibration advance amount of the crystallizer are improved, the inflow of liquid casting powder in an air gap between a steel billet and a copper pipe is facilitated, and the slag runner phenomenon in the casting process of the casting blank is avoided.
Owner:JIANGSU SHAGANG GROUP HUAIGANG SPECIAL STEEL CO LTD +1
Oil spraying device for bull gear of coal mill in power plant
PendingCN119435680Aavoid cloggingImprove adsorption capacityGearboxesGear lubrication/coolingGear wheelElectric machine
The invention relates to the technical field of gear oil injection, and provides a power plant coal mill bull gear oil spraying device which comprises an oil storage tank used for storing oil, one side of the oil storage tank is communicated with a pump body provided with two liquid outlets, the two liquid outlets of the pump body are communicated with a spraying assembly in a coal mill gearbox through oil injection pipes, and the spraying assembly is communicated with the oil storage tank. The spraying assembly is driven by an electric push rod to be stored, a cavity is formed in the other side of the oil storage tank, a motor is installed in the cavity, and two cooling pipes in the oil storage tank are located on the outer wall of the motor in a spiral mode so that energy transmission between the cooling pipes and the motor can be achieved. The phenomenon that the spray head is blocked due to exposure in air is avoided, the spraying efficiency of lubricating oil is ensured, meanwhile, the flowability and the lubricating performance of the lubricating oil are ensured through energy conversion, the lubricating effect is improved, gear abrasion is reduced, the service life of the gear is prolonged, and on the contrary, a certain cooling effect can be achieved on the motor.
Owner:GUIZHOU QIANXI ZHONGSHUI POWER GENERATION CO LTD
Silicon-containing composition for processing chlorine-containing polyolefin material and preparation method thereof
The invention relates to the technical field of material processing, and discloses a silicon-containing composition for processing a chlorine-containing polyolefin material and a preparation method, which are used for solving the problems of processing and extrusion of the chlorine-containing polyolefin composite material. The invention relates to a silicon-containing composition for processing a chlorine-containing polyolefin material. The silicon-containing composition comprises 5-95 parts of modified polysiloxane, 5-95 parts of hydrocarbon wax, 5-95 parts of fatty acid amide, 5-95 parts of metallic soap and 1-5 parts of other auxiliaries. The silicon-containing composition for processing the chlorine-containing polyolefin material is applied to processing and extrusion of the chlorine-containing polyolefin composite material, modified polysiloxane not only contains a plastic-loving part but also contains a filler-loving part, and meanwhile, the whole molecular structure takes organic silicon as a main chain, so that the special performance of the organic silicon is achieved; according to the present invention, the chlorine-containing polyolefin composite material is compounded with other lubricants so as to achieve efficient internal and external lubrication, high cost performance and no precipitation, can effectively delay the decomposition time of the chlorine-containing polyolefin, can weaken the adhesion effect between the chlorine-containing polyolefin and the metal, can substantially prolong the screw cleaning time during the processing of the chlorine-containing polyolefin composite material, and can improve the production efficiency.
Owner:CHENGDU SILIKE TECH
Electric drive axle and electric truck
PendingCN119283599Aavoid lostImprove climbing performanceElectric propulsion mountingControl devicesReduction driveGear wheel
The invention relates to an electric drive axle and an electric truck. An electric drive axle is used for an electric truck, the electric drive axle is provided with a main drive motor, an auxiliary drive motor, a speed reducer assembly and a differential mechanism, the speed reducer assembly is provided with a gear shifting mechanism, a main drive first-stage speed reduction stage, an auxiliary drive first-stage speed reduction stage, a main drive second-stage speed reduction stage and an auxiliary drive second-stage speed reduction stage, the main drive secondary speed reduction stage and the auxiliary drive secondary speed reduction stage can be respectively connected with an output shaft of the speed reducer assembly through a gear shifting mechanism, the output shaft is directly connected with the differential mechanism, and the main drive secondary speed reduction stage comprises a main drive first-gear driving gear, a first-gear driven gear meshed with the main drive first-gear driving gear, a main drive second-gear driving gear and a second-gear driven gear meshed with the main drive second-gear driving gear. The auxiliary drive two-stage speed reduction stage comprises an auxiliary drive first-gear driving gear, a first-gear driven gear meshed with the auxiliary drive first-gear driving gear, an auxiliary drive second-gear driving gear and a second-gear driven gear meshed with the auxiliary drive second-gear driving gear. The electric truck according to the invention has an electrically driven axle.
Owner:JIANGSU SUPER PANTHER POWER TECH CO LTD
Compressor and refrigeration equipment
ActiveCN222315373UImprove running stabilityreduce disturbanceRotary/oscillating piston combinations for elastic fluidsCrankshaftsElectric machineryControl theory
The utility model discloses a compressor and refrigeration equipment, and belongs to the technical field of compressors, the compressor comprises a motor assembly, a pump body assembly, a crankshaft and a silencer, the motor assembly drives the crankshaft to rotate through a stator and a rotor, compressed air is discharged to the silencer through an exhaust port of an air cylinder, and exhaust noise is reduced through a silencing cavity; the crankshaft can penetrate through the first through hole of the cover body and the air outlet of the silencer, and due to the fact that the air outlet and the first through hole are oppositely arranged in the axial direction of the crankshaft, air is exhausted into the cover body through the air outlet and the first through hole, passes through the inner cavity of the cover body and then penetrates through the rotor through the vent hole to be exhausted; due to the fact that gas flows along the silencing cavity, the inner cavity of the cover body and the vent hole in sequence after being exhausted from the air cylinder, disturbance of airflow to a circulating oil way can be effectively reduced, circulating flow of lubricating oil is smoother, stability of oil return and oil spitting is guaranteed, a good lubricating effect is provided for a pump body assembly, and running reliability of the compressor is improved.
Owner:GUANGDONG MEIZHI COMPRESSOR +2
Coating agent for expandable polystyrene and preparation method thereof
PendingCN119505341AImprove the lubrication effectGood release effectCoatingsPolymer sciencePolyvinyl alcohol
The invention relates to the field of polystyrene auxiliaries, and particularly discloses a coating agent for expandable polystyrene as well as a preparation method and application of the coating agent. The coating agent for expandable polystyrene is prepared from the following raw materials in parts by weight: 28 to 42 parts of mono / diglycerol fatty acid ester, 32 to 42 parts of triglyceride, 22 to 32 parts of stearate, 1 to 5 parts of ethylene bis stearamide and 2 to 3 parts of polyvinyl alcohol, and the granularity of the raw materials is 300 to 325 meshes. The coating agent provided by the invention can be used for light-grade, flame-retardant and common-grade expandable polystyrene, and can reduce adhesion and agglomeration among expandable polystyrene particles, enhance the demolding effect and reduce volatilization and loss of a foaming agent and an auxiliary agent.
Owner:GONGDING (SHANGHAI) TECH CO LTD
Carbon ceramic composite friction material and preparation method thereof
PendingCN119122959AAvoid high temperature oxidationImprove high temperature stabilityFriction liningFiberCarbide silicon
The invention discloses a carbon ceramic composite friction material and a preparation method thereof. The carbon ceramic composite friction material is prepared from the following raw materials in parts by weight: 5-10 parts of short carbon fibers, 15-25 parts of ceramic fibers, 15-25 parts of calcium sulfate whiskers, 10-15 parts of microporous filler, 3-5 parts of a friction increasing regulator, 3-5 parts of a friction reducing regulator, 0.2-0.5 part of superfine silicon carbide, 0.05-0.1 part of a dispersing agent, 3-6 parts of polysilazane and 3-5 parts of high-temperature-resistant phenolic resin. And 0.5-1 part of polytetrafluoroethylene powder. Polysilazane is adopted to treat short carbon fibers, so that the carbon fibers form a good ceramic high-temperature-resistant layer, and high-temperature oxidation of the carbon fibers in the carbon-ceramic composite friction material is effectively prevented; the use amount of phenolic resin is reduced, and the high-temperature stability of the carbon-ceramic composite friction material is improved. Through cooperation of the friction-increasing modifier, the friction-reducing modifier, the calcium sulfate whiskers, the microporous filler and the polytetrafluoroethylene, the friction coefficient is kept stable at high temperature during braking, and abrasion caused during high-load braking is reduced. Long-time high-temperature sintering is not needed in the production process, and energy-saving and environment-friendly preparation of the carbon-ceramic friction material is achieved.
Owner:ZHEJIANG TAIJI FRICTION MATERIAL CO LTD
Planetary speed reducing mechanism and mechanical transmission device
ActiveCN222163501Ureduce dosageImprove the lubrication effectGear lubrication/coolingMechanical driveOil intake
The utility model relates to the technical field of transmission systems, and discloses a planetary reducing mechanism and a mechanical transmission device. The planetary speed reducing mechanism comprises a shell, a sun wheel assembly, a planet wheel assembly and an oil filling pipe. An oil return cavity is formed in the shell; the sun gear assembly is rotatably arranged in the shell; the planet wheel assembly is rotatably arranged in the oil return cavity, a lubricating runner is formed between the planet wheel assembly and the sun wheel assembly, an oil outlet of the lubricating runner is located on a planet shaft of the planet wheel assembly, the planet wheel assembly is further connected with an output shaft, the output shaft is provided with a first shaft hole extending in the axial direction, and the first shaft hole is communicated with an oil inlet of the lubricating runner; the oil injection pipe is inserted into the first shaft hole. According to the planetary speed reducing mechanism, active lubrication and passive lubrication are integrated, the lubrication effect is improved, the use amount of lubricating oil is reduced, oil guide parts do not need to be introduced, the overall structure is simple, and the cost is reduced.
Owner:ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
Vacuum high-wear-resistance zirconia-based composite ceramic material as well as preparation method and application thereof
ActiveCN119504277AImprove tribological performanceImprove mechanical propertiesAlcoholComposite ceramic
The invention discloses a vacuum high-wear-resistance zirconia-based composite ceramic material as well as a preparation method and application thereof, and belongs to the technical field of ceramic material preparation. The preparation method comprises the following steps: 1) sufficiently and uniformly mixing zirconium oxide powder, a stabilizer and absolute ethyl alcohol to prepare mixed slurry; 2) adding whiskers into the mixed slurry, fully and uniformly stirring, and then drying and sieving to obtain mixed powder; 3) carrying out static pressure molding on the mixed powder to prepare a composite ceramic biscuit, and then carrying out vacuum sintering and annealing treatment to prepare composite ceramic; and 4) performing high-temperature carburizing treatment on the composite ceramic to obtain carburized composite ceramic, and performing surface treatment to obtain the vacuum high-wear-resistance zirconia-based composite ceramic material. The vacuum wear rate of the zirconia-based composite ceramic material provided by the invention is reduced by 1-2 orders of magnitude compared with that of a traditional yttria-stabilized zirconia material, and a novel high-wear-resistance ceramic material is provided for precise friction driving parts in the field of aerospace.
Owner:XI AN JIAOTONG UNIV
Shield tunneling machine anti-drag slurry for stacked tunnel construction and use method of shield tunneling machine anti-drag slurry
PendingCN119639433AImprove compactnessgood viscosity stabilityDrilling compositionSoil scienceSlurry
The invention belongs to the technical field of tunnel engineering, and particularly relates to shield tunneling machine anti-drag slurry for stacked tunnel construction and a use method of the shield tunneling machine anti-drag slurry. According to the anti-drag slurry, bentonite, anhydrous Na2CO3 and water are used as main raw materials, a certain amount of a lubricant and a nanometer material are added into the slurry to prepare the anti-drag slurry, the stress condition between a shield tunneling machine shell and a soil body is monitored in real time, the grouting amount and the grouting pressure of the anti-drag slurry are dynamically adjusted according to the change of soil pressure, and therefore the anti-drag effect of the shield tunneling machine is achieved. The friction force between the shield tunneling machine shell and the surrounding soil body can be reduced, disturbance of the shield tunneling machine shell to the soil body is reduced, consolidation settlement of the soil body in the later period is reduced, and materials and methods are provided for stacked tunnel construction.
Owner:BEIJING NO 4 MUNICIPAL CONSTR ENG +1
Modified polytetrafluoroethylene for wear-resistant sealing ring and preparation method thereof
PendingCN119119655AImprove the lubrication effectImprove wear resistancePolymer scienceMixed materials
The invention belongs to the technical field of polymer composite materials, and particularly relates to modified polytetrafluoroethylene for a wear-resistant sealing ring and a preparation method of the modified polytetrafluoroethylene. After standing, uniformly mixing polytetrafluoroethylene with the inorganic filler and polyimide to obtain a mixture, and standing the mixture at room temperature; and 2, performing cold pressing on the mixed material after standing to form a preform, sintering the preform at high temperature to form a blank material, and processing the blank material into the sealing ring. The inorganic filler and the organic filler are mixed and added, and the sintering temperature and the cooling rate are controlled in the preparation process, so that the modified polytetrafluoroethylene has good wear resistance at a lower friction coefficient on the premise of ensuring the mechanical property of the polytetrafluoroethylene, and the modified polytetrafluoroethylene can be used in a specific working environment.
Owner:ZHENJIANG YIYANG SEALS PROD CO LTD
Aqueous surface treatment liquid for galvanized steel sheet, self-lubricating galvanized steel sheet and manufacturing method of self-lubricating galvanized steel sheet
PendingCN119220160AImprove corrosion resistanceGood acid and alkali resistanceLiquid surface applicatorsAnti-corrosive paintsSolid componentPolytetrafluoroethylene
The invention discloses a water-based surface treatment liquid for a galvanized steel sheet. The water-based surface treatment liquid comprises deionized water and a solid, the solid component comprises the following components in parts by weight: 25-65 parts of water-based cationic polymer resin A in the solid component; the weight part of the compound organosilane coupling agent B in the solid components is 30 to 60 parts; the weight part of the compound lubricating particles C in the solid components is 3-10 parts; wherein the compound lubricating particles C comprise at least one organosilane coupling agent C1 containing unsaturated bonds; and a mixture of an oxidized polyethylene wax emulsion and a polytetrafluoroethylene wax emulsion; a water-soluble fluorine-containing compound D, wherein the weight part of the fluorine element in the solid is 1.5-5 parts; a water-soluble phosphorus-containing compound E, wherein the weight part of the phosphorus element in the solid is 1-3 parts; and a water-soluble salt compound F containing an eighth group iron element, wherein the weight part of the eighth group iron element in the solid component is 0.2-0.6 part.
Owner:BAOSHAN IRON & STEEL CO LTD
Method for improving lubricating property and wear resistance of base oil and method for improving dispersion stability of graphite in base oil
The invention provides a method for improving lubricating property and wear resistance of base oil and a method for improving dispersion stability of graphite in the base oil. A telechelic polymer is adopted, the telechelic polymer is composed of an oil-soluble central chain and two non-oil-soluble pyrene functionalized end-group chains, and the telechelic polymer can be self-assembled into a completely cross-linked, rodlike and stable gel network through pi-pi stacking interaction. The telechelic polymer is added into the base oil, so that stable oil gel can be formed, on one hand, leakage and wriggling of the base oil can be remarkably relieved, and on the other hand, the lubricating property and wear resistance of the base oil can be improved; when graphite or a derivative thereof is also added, the lubricating property and the wear resistance can be further improved, particularly when the graphite is added, the graphite can be stripped into graphene in situ under the assistance of ultrasonic waves, the cost is low, the method is simple and easy to implement, and the dispersion stability of the graphite is improved.
Owner:LANZHOU UNIV
Water-based bio-based anti-wear agent for water-based paint ink and preparation method thereof
ActiveCN119264722AImprove the lubrication effectImprove waterproof performanceInksArtifical filament manufactureOrganic chemistryMaterials science
The invention relates to the field of paint and ink additives, and particularly discloses a water-based bio-based anti-wear agent for water-based paint and ink and a preparation method of the water-based bio-based anti-wear agent. The invention discloses a water-based bio-based anti-wear agent for water-based paint ink and a preparation method thereof. The water-based bio-based anti-wear agent comprises the following raw materials in parts by weight: 30-50 parts of palm wax, 16-24 parts of rice bran wax, 2-8 parts of oleamide and 0.2-0.6 part of a reinforcing agent. In addition, the invention has the advantage of improving the environmental friendliness of the anti-wear agent.
Owner:LONGKOU YIJIU ENVIRONMENTAL PROTECTION TECH CO LTD
Plastic bag strapping machine with lengthened rope head and method for lengthening rope head
PendingCN119319957Ahigh strengthSimple structurePaper article packagingBundling machine detailsBeakCam
The invention discloses a plastic bag strapping machine with a lengthened rope head and a method for lengthening the rope head, the plastic bag strapping machine comprises a beak knotter and is further provided with a bracket, a machine head of the beak knotter is connected to the bracket, one side of the machine head or the bracket is further provided with an external rope pusher, the external rope pusher comprises a pushing claw and a pushing mechanism, and the pushing claw is connected with the bracket. The pushing claw is connected to the pushing mechanism, the pushing mechanism is a cam assembly or an external driving part and is arranged on the side face of the machine head or the bracket, the length of the rope head is increased by increasing the relative distance between the pressing buckle and the beak and between the rope cutter and the beak, and the external rope pusher is adopted to adapt to the stroke of the rope head. The rope pusher is simple in structure, can be produced without changing the size of a machine head of the beak knotter and additionally developing a machine head mold, avoids the phenomenon that an existing rope pusher is prone to deformation and clamping, and is convenient to maintain and lubricate.
Owner:SHANDONG XIULAI TECH CO LTD
Preparation method of long-acting interface lubricating coating
ActiveCN119463591AGood anti-icing effectImprove wear resistancePolyurea/polyurethane coatingsDiluentFirming agent
The invention discloses a preparation method of a long-acting interface lubricating coating, which comprises the following steps: (1) adding 5-7 parts by mass of nano sol, 4-6 parts by mass of micron porous powder, 1.0-1.2 parts by mass of low surface energy substance and 4-6 parts by mass of ammonia water into 80-120 parts by mass of ethanol, and stirring under a water bath heating condition to obtain a modified micron particle suspension, the suspension liquid is dried into powder at high temperature, and modified porous powder is obtained; (2) fully mixing 0.8-1.2 parts by mass of the modified porous powder and 3-5 parts by mass of silicone oil, putting the mixture into a vacuum pump to vacuumize so that the silicone oil can enter the modified porous powder, and after the vacuum state is removed, separating redundant silicone oil to obtain porous powder containing silicone oil; (3) carrying out hole sealing treatment on the porous powder containing the silicone oil, drying at a high temperature, and then mixing with the silicone oil to obtain a mixed solution of the hole sealing powder and the silicone oil; and (4) firstly adding 2.5-4 parts by mass of resin into 2-5 parts by mass of a diluent, then adding 0.5-0.6 part by mass of a silane coupling agent, then adding 0.5-0.8 part by mass of the mixed solution obtained in the step (3), finally adding 0.75-1.2 parts by mass of a curing agent, uniformly mixing, brushing or spraying onto a substrate, and airing to obtain the interface lubricating coating.
Owner:SOUTHEAST UNIV
Fish mucus-methacrylated gelatin hydrogel with lubricating and drag-reducing performance and preparation method of fish mucus-methacrylated gelatin hydrogel
The invention discloses fish mucus-methacrylated gelatin hydrogel with lubrication and resistance reduction performance and a preparation method of the fish mucus-methacrylated gelatin hydrogel. The preparation process of the hydrogel comprises the following steps: firstly, preparing a methacrylated gelatin hydrogel (GelMA) precursor by utilizing an amidation reaction of methacrylic anhydride (MA) and gelatin (Gel), and then realizing gelation by utilizing hydrogen bond interaction of a fish mucus freeze-dried product (MC) and GelMA and photo-crosslinking of the GelMA precursor and polyethylene glycol diacrylate (PEGDA) under ultraviolet light of 365nm. The mucus-methylacryloylated gelatin hydrogel (MC-GelMA) is obtained after the mucus-methylacryloylated gelatin hydrogel is prepared. The hydrogel prepared by the preparation method disclosed by the invention has excellent swelling resistance and mechanical strength. Meanwhile, the hydrogel also has good lubrication and drag reduction performance, and can be used as a ship drag reduction material.
Owner:ZHEJIANG UNIV
Cigarette storage cabinet bottom belt side chain bearing mechanism and lubricating system thereof
ActiveCN222180845UImprove the lubrication effectImprove lubrication efficiencyCleaningLubrication elementsControl engineeringElectromagnetic valve
The utility model discloses a cigarette storage cabinet bottom belt side chain bearing mechanism and a lubricating system of the cigarette storage cabinet bottom belt side chain bearing mechanism, the lubricating system of the cigarette storage cabinet bottom belt side chain bearing mechanism comprises an automatic lubricating device and a riding wheel clamping stagnation detection device, the automatic lubricating device comprises a photoelectric detection device, an adjustable support, a temporary storage oil tank, a lubricating electromagnetic valve and a dropper; the riding wheel clamping stagnation detection device comprises a detection riding wheel, a detection support, a trigger support, a start proximity switch, a stop proximity switch and a detection switch. The bottom belt side chain bearing mechanism comprises the lubricating system, a chain piece assembly, a plurality of bearing riding wheels and a plurality of bottom belt plates. The lubricating system provided by the utility model is provided with the detection riding wheel which moves synchronously with the bearing riding wheel, and the clamping stagnation condition of the bearing riding wheel is reflected by utilizing the detection riding wheel and the detection switch, so that the clamping stagnation condition of the bearing riding wheel is detected, and the automatic lubricating device can lubricate the bottom belt side chain bearing mechanism according to the clamping stagnation condition of the bearing riding wheel.
Owner:CHINA TOBACCO GUANGXI IND
Anchor chain flaw detection equipment
InactiveCN119246695AImprove the reliability of flaw detectionImprove the effectiveness of comprehensive flaw detection detectionAnalysing solids using sonic/ultrasonic/infrasonic wavesStructural engineeringUltrasound wave
Owner:ZHEJIANG INT MARITIME COLLEGE
Compression-resistant and torsion-resistant energy storage cable and preparation method thereof
ActiveCN119650156AImprove torsion resistanceGuaranteed bending performanceClimate change adaptationFlexible cablesLow-density polyethyleneCross linker
The invention discloses a compression-resistant and torsion-resistant energy storage cable and a preparation method thereof, and relates to the technical field of energy storage cables. The compression-resistant and torsion-resistant energy storage cable sequentially comprises a cable core, an insulating layer, a lubricating shielding layer and a compression-resistant outer protective layer from inside to outside, wherein the compression-resistant outer protective layer at least comprises the following raw materials in parts by mass: 70-90 parts of high-density polyethylene; 10 to 20 parts of low density polyethylene; 20 to 30 parts of elastic particles; 30 to 40 parts of an ethylene-vinyl acetate copolymer; 30 to 40 parts of a flame retardant; 5 to 10 parts of maleic anhydride grafted poly ethylene propylene diene monomer; 0.1 to 1 part of an antioxidant; 1-2 parts of a lubricant; 0.1 to 1 part of a cross-linking agent; and 0.1-1 part of an assistant cross-linking agent. The anti-compression and anti-torsion energy storage cable prepared by the invention has excellent mechanical performance and electrical performance, and the anti-compression and anti-torsion performance of the energy storage cable is improved.
Owner:HUNAN HUALITONG CABLE
Windproof breathable composite fabric and application thereof
ActiveCN119571624AImprove antistatic performanceImprove wear resistanceAbrasion resistant fibresEpoxyPolyester
The invention discloses a windproof and breathable composite fabric and application thereof. The windproof and breathable composite fabric is used for solving the technical problem that in the prior art, the windproof and breathable performance, the wear-resistant and antistatic performance and the washing resistance of a polyester fiber fabric need to be further improved. The preparation method comprises the following steps: putting a gray fabric into a pretreatment solution for pretreatment to obtain a pretreated gray fabric, taking modified quaternary ammonium salt as a cross-linking agent, promoting cross-linking of a polyurethane prepolymer co-blocked by modified polysiloxane and polyethylene glycol, preparing epoxy group-terminated modified polyurethane, and carrying out heat treatment to obtain the pretreated gray fabric. The modified polyurethane and the tetrabutyl titanate are dispersed and mixed in the alkaline emulsion, and the prepared finishing liquid is used for padding and modifying the pretreated gray fabric, so that the windproof and moisture-permeable performance of the composite fabric is effectively improved, and the antistatic performance, wear resistance and pilling resistance of the composite fabric are also improved.
Owner:BIEM L FDLKK GARMENT CO LTD
Water-based polytetrafluoroethylene coating and preparation method thereof
ActiveCN119144192AImprove wear resistanceImprove the lubrication effectAnti-corrosive paintsVinyl etherFiber
The invention provides a water-based polytetrafluoroethylene coating and a preparation method thereof, and relates to the technical field of aerospace, and the water-based polytetrafluoroethylene coating comprises a polytetrafluoroethylene emulsion, a perfluoroalkoxy vinyl ether copolymer emulsion, a binder, functional slurry, a high-temperature leveling agent, texanol, a thickening agent and a defoaming agent; wherein the functional slurry comprises a porous graphite fiber-molybdenum disulfide assembly, a wear-resistant filler and a composite dispersant; 20-35 parts by weight of a polytetrafluoroethylene emulsion; 5 to 15 parts by weight of a perfluoroalkoxy vinyl ether copolymer emulsion; 5-10 parts by weight of a binder; the content of the functional slurry is 10-25 parts by weight; 0.5-1 part by weight of a high-temperature leveling agent; and 1-5 parts by weight of texanol. The water-based polytetrafluoroethylene coating provided by the invention can effectively improve the wear resistance, lubrication and corrosion resistance of a coating, remarkably improve the interfacial compatibility between polytetrafluoroethylene resin and filler, reduce surface cracks of the coating and increase the critical crack thickness.
Owner:XIAN RARE METAL MATERIALS RES INST CO LTD
Self-adaptive molybdenum disulfide-based multi-layer composite film resistant to low orbit space irradiation and preparation method of self-adaptive molybdenum disulfide-based multi-layer composite film
ActiveCN119243098AMade preciselyImprove toughnessVacuum evaporation coatingSputtering coatingComposite filmGear wheel
The invention relates to the field of solid lubricating materials of aerospace materials, and particularly discloses a self-adaptive molybdenum disulfide-based multi-layer composite film resistant to low orbit space irradiation and a preparation method of the self-adaptive molybdenum disulfide-based multi-layer composite film. The closed field unbalanced magnetron sputtering technology is adopted, and a bonding layer (Ti), a gradient transition layer (MoS2 / Ti), a functional layer (MoS2 / Ti), a transition layer (MoS2-Ti-C) and a functional layer (MoS2-C) are deposited on a metal material to form the multi-layer composite lubricating film. The prepared lubricating film can reliably serve in a low-orbit space environment, can effectively reduce mechanical abrasion of space mechanical friction moving parts, and can still keep stable tribological performance under long-time irradiation in the low-orbit space. The method is particularly suitable for long-term moving parts such as bearings and gears of new-generation low-orbit service spacecrafts.
Owner:SHANGHAI AEROSPACE EQUIPMENTS MANUFACTURER CO LTD
Hydrogel coating for hemodialysis catheter as well as preparation method and application of hydrogel coating
PendingCN119405907AImprove the lubrication effectImprove antibacterial propertiesPharmaceutical delivery mechanismCatheterMethacrylatePolyvinyl alcohol
The invention discloses a hydrogel coating for a hemodialysis catheter as well as a preparation method and application of the hydrogel coating. The functional hydrogel coating material is prepared from substances such as polyvinyl alcohol, acrylamide and sulfobetaine methacrylate in a thermal polymerization manner. The invention further discloses application of the hemodialysis catheter coating to improvement of lubrication, antibacterial and anticoagulation functions of a hemodialysis catheter, and the hemodialysis catheter coating has good stability and blood compatibility. Experimental results show that the hydrogel coating technology of the hemodialysis catheter can significantly improve the lubrication, bacterial adhesion resistance and thrombosis resistance functions of the hemodialysis catheter, and shows excellent bonding strength and blood compatibility.
Owner:ZHU XIANYI MEMORIAL HOSPITAL OF TIANJIN MEDICAL UNIV (TIANJIN MEDICAL UNIV METABOLIC DISEASE HOSPITAL TIANJIN METABOLIC DISEASE PREVENTION CENT)