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Method for preparing rubber compound by recycling waste rubber and prepared rubber compound
PendingCN119371731AImprove plasticityImprove mechanical propertiesPlastic recyclingSpecial tyresRubber materialWaste rubber
The invention relates to the technical field of waste rubber recovery, in particular to a method for preparing a rubber compound by recycling waste rubber and the prepared rubber compound. The high-shear mechanical desulfurization technology is combined, the desulfurization efficiency is further improved through the synergistic effect of various components in the compound auxiliary, and meanwhile the plasticity of the waste rubber and the compatibility of the waste rubber and new rubber are enhanced. The method not only can effectively destroy the cross-linked structure of the waste rubber, but also can be used for preparing a high-performance rubber compound product by mixing the waste rubber with a new rubber material through a subsequent mixing process, and is widely applied to manufacturing high-strength and wear-resistant rubber products, such as solid tires and the like.
Owner:SANMEN SONGWEI RUBBER & PLASTIC CO LTD
Safety auxiliary coal conveying equipment for coal mine transportation
InactiveCN119460606Aeasily brokenImprove buffering effectConveyorsCleaningCoal briquetteMining engineering
The invention belongs to the technical field of conveying equipment, and particularly relates to safety auxiliary coal conveying equipment for coal mine transportation. Comprising a rack, and a crushing assembly and a smoothing assembly are arranged at the upper end of the rack; the crushing assembly comprises a connecting cylinder, a screen, a guide table, a crushing table and the like, the connecting cylinder and the screen shovel up coal briquettes on the conveying belt, large coal briquettes are screened out, the large coal briquettes are conveyed to the crushing table to be crushed through the guide table, and the crushed coal briquettes fall onto the conveying belt; the smoothing assembly comprises smoothing rollers capable of rotating and revolving, and coal briquettes accumulated on the two sides are pushed into the middle of the conveying belt through the smoothing rollers. And the coal briquettes conveyed by the conveying belt are uniform and are not easy to fall off from the conveying belt, so that the safety and the conveying efficiency of the coal briquettes during conveying are improved.
Owner:TONGMEI DATANG TASHAN COAL MINE CO LTD
Automobile engine
InactiveCN102678314AAvoid loosening and shiftingEasily brokenMachines/enginesMechanical energy handlingStatorCrankshaft
The invention discloses an automobile engine which comprises an engine body, a crankshaft and an air conditioner generator. The air conditioner generator comprises a stator and a rotor and is placed on the front portion of the automobile engine and driven by the crankshaft of the automobile engine, and the axis of the stator of the air conditioner generator is coaxial to the axis of a main shaft neck of the crankshaft of the automobile engine. The automobile engine can supply power to vehicle-mounted air conditioner systems, and the air conditioner generator is arranged at the front end of the crankshaft of the automobile engine. The automobile engine requires no belt for driving and is simple in structure and convenient for the vehicle-mounted air conditioner system to adopt the whole distribution structure.
Owner:HUNAN VAQOUNG ELECTRIC +1
Municipal pipeline dredging device
The invention discloses a municipal pipeline desilting device, and relates to the technical field of pipeline desilting, and the municipal pipeline desilting device is technically characterized by comprising a main body, mounting brackets are symmetrically mounted on the inner wall of the main body, a desilting mechanism is arranged on the mounting brackets, a walking mechanism is arranged on the outer circular surface of the main body, and the desilting mechanism comprises a sludge crushing assembly, a pipeline inner wall cleaning assembly and a power assembly; and the sludge crushing assembly comprises a linkage column which is rotationally connected to the inner side of one of the mounting supports and penetrates through the mounting supports, and a drill bit is fixedly mounted at the end, located on the outer side of the main body, of the linkage column. The efficient and comprehensive cleaning of the sludge on the inner wall of the pipeline is achieved, the problems of a traditional dredging device in the aspects of sludge caking treatment and incomplete cleaning are solved, and a powerful guarantee is provided for long-term smoothness of municipal pipelines and healthy operation of cities.
Owner:CCCC FOURTH HIGHWAY ENG CO LTD +1
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
Pressure-bearing device of servo hydraulic cylinder
InactiveCN222625776UExtended service lifereduce maintenanceMetal rolling stand detailsRoll mill control devicesHydraulic cylinderControl engineering
The utility model provides a servo hydraulic cylinder pressure-bearing device which comprises a sleeve, and the top of the sleeve is fixedly connected with a rolling mill base. The bottom of the sleeve is detachably connected with a cylinder body of the hydraulic cylinder; the outer side of the sleeve is sleeved with a pressure bearing pad, the bottom of the pressure bearing pad is attached to the top face of the cylinder body, and a jacking assembly is arranged at the top of the pressure bearing pad and used for jacking the pressure bearing pad downwards. The servo hydraulic cylinder pressure-bearing device has the advantages that counter-acting force of the servo hydraulic cylinder in the rolling process is borne through the sleeve and the pressure-bearing pad, the pressure-bearing pad downwards abuts against the cylinder body under the action of the abutting assembly, more counter-acting force is borne, the sleeve is effectively protected and prevented from deforming, the service life of the pressure-bearing device is greatly prolonged, and the service life of the servo hydraulic cylinder is prolonged. And the maintenance and replacement cost of the pressure-bearing device is reduced.
Owner:TIANJIN ZHONGZHONG TECH ENG CO LTD
Fan array wind tunnel capable of simulating multiple angles
ActiveCN119666302Aquick installationeasy accessAerodynamic testingStructural engineeringMechanical engineering
The invention discloses a fan array wind tunnel capable of simulating multiple angles, relates to the field of wind tunnel experiments, and solves the problem that a fan on an existing fan array wind tunnel is easy to break, the fan array wind tunnel comprises a mounting bracket and a mounting ring mounted on the inner side of the mounting bracket, and a square frame is arranged on the inner side of the mounting ring; a plurality of positioning frames which are distributed at equal intervals are fixedly mounted on the inner side of the square frame, and a plurality of fan bodies which are distributed at equal intervals are arranged on the inner sides of the positioning frames; the clamping mechanism is used for quickly assembling and disassembling the fan body, and the clamping mechanism is mounted on the inner side of the positioning frame; the fan bodies are rapidly installed on the outer side of the positioning frame in a clamping mode through the clamping mechanism, the uppermost fan body is pressed and positioned, the multiple fan bodies are conveniently and rapidly installed, the fan bodies are supported through the positioning frame, the problem that the multiple fan bodies are prone to being broken is solved, and the service life of the fan bodies is prolonged. Therefore, the effects of quick disassembly and assembly and stable operation are achieved.
Owner:BAILIN ELECTROMECHANICAL TECH (SUZHOU) CO LTD
High-strength bending-resistant cable
ActiveCN222562283Ustable supporteasily brokenClimate change adaptationFlexible cablesStructural engineeringElectric cables
According to the scheme, the high-strength bending-resistant cable comprises a cable body, fixing steel cables are arranged on the two sides of the cable body, the high-strength bending-resistant cable further comprises locking pieces arranged on the two sides of the cable body and the fixing steel cables in a sleeving mode, the cable body comprises a cable waterproof layer attached to the locking pieces, and reinforcing pieces are fixedly connected into the cable waterproof layer. The reinforcer is arranged in a gear shape, and the outer surface of the reinforcer is in contact with the inner surface of the cable waterproof layer; the utility model belongs to the technical field of cables, and particularly relates to a flame-retardant military cable, which is characterized in that the supporting performance of a cable main body is improved through a reinforcing piece and a reinforcing steel wire, the cable main body is prevented from being easily broken due to extrusion, and the use safety of the cable is prevented from being influenced; and fixed connection is carried out through the fixed plate and the fixed bolt, so that the cable is prevented from being easily broken due to swinging in the use process.
Owner:天津市天鸿祥线缆有限公司
Aluminum-vanadium-niobium-chromium intermediate alloy as well as preparation method and application thereof
PendingCN119614953Aeasy to prepareimprove bindingAdditive manufacturing apparatusMetallic aluminumManufacturing technology
The invention provides an aluminum-vanadium-niobium-chromium intermediate alloy as well as a preparation method and application thereof. The aluminum-vanadium-niobium-chromium intermediate alloy comprises the following components in percentage by mass: 15%-22% of V, 1%-7% of Nb, 5%-11% of Cr and the balance of Al and inevitable impurities. The preparation method of the aluminum-vanadium-niobium-chromium intermediate alloy comprises the following steps: firstly, respectively preparing three binary intermediate alloys, namely primary alloys, by utilizing an aluminothermic reduction method; then, the primary alloy is refined through vacuum induction melting, and a secondary alloy is obtained; and finally, the secondary alloy and metal aluminum are subjected to vacuum induction melting, and the aluminum-vanadium-niobium-chromium intermediate alloy is prepared. The aluminum-vanadium-niobium-chromium intermediate alloy has the advantages of being uniform in component, low in element segregation and low in impurity content, and has very good application prospects and large-scale industrial popularization potential in the field of titanium alloy production through the additive manufacturing technology.
Owner:BHN SPECIAL MATERIALS
Anti-scattering water-guided laser cutting fluid as well as preparation method and application thereof
PendingCN119432491AReduce Interface Scatteringreduce in quantityLaser beam welding apparatusLubricant compositionRefractive indexLaser cutting
The invention provides anti-scattering water-guided laser cutting fluid as well as a preparation method and application thereof. The anti-scattering water-guided laser cutting fluid comprises the following components in parts by weight: 0.1-1 part of an anti-scattering agent; 0.01 to 0.1 part of a foam discharging agent; 1-5 parts of a refractive index regulator; and 80-99 parts of ultrapure water. The anti-scattering agent is a polymer; the foam removing agent is one or more of hydroxymethyl cellulose, hydroxy propyl cellulose, sodium lignin sulfonate, potassium lignin sulfonate and naphthalene sulfonic acid formaldehyde condensate sodium salt; the refractive index regulator is an iodine-containing compound and / or a fluorine-containing compound. According to the anti-scattering water-guided laser cutting fluid, light beam scattering and energy loss in the water-guided laser cutting process can be remarkably reduced, and the cutting precision and efficiency are improved. The anti-scattering water-guided laser cutting fluid has very good application prospects and large-scale industrial popularization potential in the field of water-guided laser cutting.
Owner:DALIAN AOSHOU TECH CO LTD
Hydrogenated cycloolefin polymer and preparation method thereof
The invention provides a preparation method of a hydrogenated cycloolefin polymer, which comprises the following steps: reacting a cycloolefin polymer with hydrogen in the presence of a hydrogenation catalyst and a hydrogenation aid to obtain the hydrogenated cycloolefin polymer, the hydrogenation auxiliary agent is selected from one or more of aliphatic dibasic acid esters, phthalate esters and benzene polyacid esters. Compared with the prior art, in the presence of the hydrogenation catalyst and the hydrogenation auxiliary agent, the cycloolefin polymer and the hydrogen are subjected to hydrogenation reaction, and an induced dipole is induced in the adjacent cycloolefin polymer through the hydrogenation auxiliary agent molecule with an inherent dipole; the molecular attraction between the induced dipole and the inherent dipole destroys the entanglement of the original molecular chain, and the friction force between the cycloolefin polymer molecules is reduced, so that the viscosity between the polymers is reduced, and the mass transfer effect of the reaction is improved; meanwhile, intramolecular electron conjugation can be inhibited, double bonds in molecules in the hydrogenation process can be damaged more easily, the hydrogenation efficiency is improved, and then the production efficiency is improved.
Owner:HANGZHOU RUIFENGRONGCHUANG TECHNOLOGY CO LTD
Leading cable, power utilization device, motor and electric vehicle
ActiveCN222484450UAchieve waterproof effectAchieving a watertight sealCable inlet sealing meansSupports/enclosures/casingsInterference fitElectric machine
The utility model relates to the field of electrical engineering, in particular to a leading cable, an electric device, a motor and an electric vehicle. The leading cable is installed on an electric device and at least comprises a wire harness which at least comprises a plurality of electric wires formed by a plurality of power supply wires connected with an external power supply; the isolation sealing sleeve is sleeved on the wire harness and is provided with a plurality of wire holes for isolating and accommodating electric wires; the protection sealing sleeve is arranged on one side close to the power utilization device and is provided with a coating part which sleeves the outer side of the isolation sealing sleeve and an extension part which extends from the coating part to the direction far away from the power utilization device; a step part is arranged between the wrapping part and the extension part, and the fastener abuts against the step part, so that the wrapping part of the protection sealing sleeve is in interference fit with the power utilization device, and accumulated water is prevented from entering the power utilization device through a connection gap between the leading cable and the power utilization device.
Owner:FEIDA TECH CO LTD
Flame-retardant silicon carbide ceramic rubber material and preparation method thereof
ActiveCN119552514AImprove wear resistanceImprove flame retardant performanceCarbide siliconRubber material
The invention relates to the technical field of rubber materials, and discloses a flame-retardant silicon carbide ceramic rubber material and a preparation method thereof. The flame-retardant silicon carbide ceramic rubber material is prepared by taking methyl vinyl silicone rubber as a main base material and adding MIL-100 (Fe, Co) coated CSiCNS, modified mica powder and other auxiliaries, not only has excellent high temperature resistance and corrosion resistance of silicone rubber, but also has excellent wear resistance of a ceramic material; wherein the MIL-100 (Fe, Co)-coated CSiCNS is prepared by taking a silicon carbide nanosheet as a substrate for modification, and is used as an inorganic flame-retardant component in the substrate, so that the flame-retardant property of the rubber material is improved; the modified mica powder serving as a ceramic forming filler not only endows the matrix with a certain flame retardant property, but also can be subjected to melting and eutectic reaction with the silicone rubber at high temperature to form a hard ceramic body, so that the flame retardant property of the matrix is further improved.
Owner:东莞市广亚新材料有限公司
Application of diatomic iron-iron site nano-enzyme in preparation of targeted osteoarthritis treatment medicine by relieving oxidative stress and cartilage degeneration
PendingCN121846307APromote productionincrease distanceHeavy metal active ingredientsAntipyreticDimerPorous carbon
The invention relates to a diatomic iron-iron site nano-enzyme constructed by relieving oxidative stress and cartilage degeneration and used for targeted osteoarthritis treatment. According to the invention, a nitrogen-doped porous carbon anchored diatomic iron nano enzyme catalyst (Fe2-NCs) with Fe-Fe dimer coordination is developed by using a'subject-object 'strategy. The Fe2-NCs protect cartilage cells from oxidative stress induced apoptosis by modulating ROS and active nitrogen species (RNS) and promoting O2 release. In addition, Fe2-NCs restores mitochondrial function by inhibiting NOX4 expression, improving ATP production, and normalizing COXIV levels. In an in-vivo OA model, the Fe2-NCs can reduce the expression of a pro-inflammatory medium COX-2 through an NF-kappa B signal channel, inhibit the up-regulation of MMP-13 and delay the degradation of type II collagen. The invention provides a new theoretical framework and methodological approach for the treatment of osteoarthritis, and has important clinical and scientific significance.
Owner:SHANGHAI YANGZHI REHABILITATION HOSPITAL +1
Spinel catalyst as well as preparation method and application thereof
ActiveCN119588362Aeasily brokenpromote formationGas treatmentDispersed particle separationPtru catalystReactive site
The invention discloses a spinel catalyst as well as a preparation method and application thereof, and relates to the technical field of catalysts. The chemical formula of the spinel catalyst is M1Co2O4, and doped metal M is any one or more of Fe, Ni, Cu, Zn, Mn and Cr. In the spinel catalyst, high-entropy coordination and an electron coupling effect lead to a high spin state of an active site Co, the fracture of an ozone O-O bond is accelerated, the formation of an intermediate M-* O is promoted, a non-free radical mediated interface catalytic reaction is established, the mineralization of organic pollutants is more thorough, the catalytic efficiency is higher, and the long service life of surface atoms * O is beneficial to continuous oxidation, so that the catalyst has a good application prospect. The durability is good.
Owner:SUN YAT SEN UNIV
Sole supporting composite board and sole
The invention discloses a shoe sole supporting composite board which comprises a hollow structure and a carbon fiber laying layer. The carbon fiber laying layers comprise first carbon fiber laying layers arranged on the upper side and the lower side of the hollow structure in the thickness direction, second carbon fiber laying layers arranged on the side faces of the hollow structure in the length direction and the width direction, and third carbon fiber laying layers arranged on the first carbon fiber laying layers and the second carbon fiber laying layers. The first carbon fiber laying layer is arranged in the full sole area of the sole; and the total layer thickness of the carbon fiber layer in the thickness direction is 1.5-2.5 mm. The invention further provides a shoe sole comprising the shoe sole supporting composite plate. The shoe sole supporting composite plate has excellent toughness, rigidity and toughness balance can be achieved, impact resistance is improved, the problem that a shoe sole is prone to breakage when being bent by a large angle is solved, and sharp fractures cannot be formed.
Owner:JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
Stator assembly, linear motor, suspension system and vehicle
ActiveCN222654887UImprove structural strengthIncrease the cross-sectional areaMagnetic circuit stationary partsStructural associationElectric machineCooling effect
The utility model discloses a stator assembly, a linear motor, a suspension system and a vehicle, the stator assembly comprises a stator core shaft, the stator core shaft comprises a shaft wall, the shaft wall is internally provided with a first cooling water channel, the peripheral wall of the stator core shaft is provided with a positioning groove, and the first cooling water channel is arranged in the positioning groove in the circumferential direction of the stator core shaft. The first cooling water channels and the positioning grooves are arranged at intervals; the stator core is sleeved outside the stator core shaft, the first cooling water channel exchanges heat with the stator core, the inner circumferential wall of the stator core is provided with a positioning protrusion, and the positioning protrusion is located in the positioning groove. According to the utility model, the positions of the first cooling water channels and the positioning grooves in the stator core shaft are arranged more reasonably, the structural strength of the stator core shaft is high, the cooling effect on the stator core is good, and the working performance of the stator assembly can be improved.
Owner:BYD CO LTD
Circulating fluidized bed desulfurizing tower
ActiveCN222445970Uincrease profitRaise the ratioDispersed particle separationFluidized bedStraight tube
The utility model discloses a circulating fluidized bed desulfurizing tower. The desulfurization tower at least comprises a desulfurization tower inlet section, a Venturi tube group, a divergent section, a straight tube section and an outlet section which are sequentially and continuously arranged from bottom to top, the desulfurizing tower inlet section comprises a square flue, a transition flue and a circular flue which are connected in sequence; the square flue comprises a 90-degree elbow, and a flue gas inlet is positioned on the horizontal square flue in front of the 90-degree elbow; the 90-degree elbow is internally provided with a flow guide device for preventing flue gas from generating bias flow after the flue gas passes through the elbow; and a rotational flow assembly is arranged at the divergent section of the desulfurizing tower. According to the utility model, when part of flue gas at the outlet of the Venturi tube enters the divergent section of the desulfurization tower, the flow direction is changed under the flow guide action of the blades to form rotational flow. Under the action of centrifugal force of rotational flow, more desulfurizing agents are thrown to the periphery of the desulfurizing tower and decelerated in the rising process, and then fall back to the divergent section, so that the proportion of the internal circulation desulfurizing agent is increased.
Owner:HUATIAN ENG & TECH CORP MCC +1
Heavy metal contaminated soil screening equipment
ActiveCN222447291UEasy to sprayavoid cloggingSievingScreeningEnvironmental engineeringMetal contamination
The utility model relates to the technical field of soil screening, and discloses heavy metal contaminated soil screening equipment. The heavy metal contaminated soil screening equipment comprises a shell assembly, a screening structure assembly is installed in the shell assembly, a first air spraying structure is installed at the upper end of the screening structure assembly, an air spraying pipe is installed at the lower end of the first air spraying structure, and a shaking spring is installed at the lower end of the air spraying pipe; a mounting frame is mounted at the upper end of the shaking spring, a first screen is mounted at the upper end of the mounting frame, a conveying assembly is mounted at the upper end of the shell assembly, a storage box is mounted at the upper end of the conveying assembly, a crushing rod is mounted in the storage box, and a conveying frame is mounted at the lower end of the storage box; and the situation that when a traditional screening device conducts screening, soil is manually poured into the screening device, the upper end of a filter screen is blocked when the subsequent soil has the caking phenomenon, and subsequent use cannot be conducted is effectively prevented.
Owner:CHENZHOU HIGH-TECH SMALL & MEDIUM ENTERPRISES PUBLIC SERVICE PLATFORM CO LTD
Natto peptide sea cucumber polysaccharide lipidosome capable of synergistically improving cardiovascular health and preparation method and application of natto peptide sea cucumber polysaccharide lipidosome
InactiveCN119587675AImprove stabilityreduce aggregationOrganic active ingredientsHydrolysed protein ingredientsLiposomeOligopeptide
The invention discloses a natto peptide sea cucumber polysaccharide liposome for synergistically improving cardiovascular health and a preparation method and application thereof, belongs to the field of active peptide delivery systems, and aims to solve the stability problem of natto oligopeptide in gastrointestinal digestive tracts. The phytosterol and the vitamin E are filled between phospholipid double layers of the liposome to support a gap between the phospholipid double layers, and the ratio of the phytosterol to the vitamin E is (1-3): 1, so that the natto oligopeptide liposome has the effects that the storage of the natto oligopeptide and the stability of the natto oligopeptide in gastrointestinal and digestive tracts can be improved, the bioavailability of the natto oligopeptide liposome is improved, and the bioavailability of the natto oligopeptide liposome is improved. The traditional Chinese medicine composition has synergistic effects in the aspects of anticoagulation, thrombolysis and blood fat reduction, and has a good cardiovascular protection effect.
Owner:DALIAN SHENLAN PEPTIDE TECH R & D CO LTD
Magnetic flocculant and application thereof in cutting fluid wastewater treatment process
PendingCN119660908AEfficient removaleasy to handleFatty/oily/floating substances removal devicesWater contaminantsSuspended particlesMagnetite Nanoparticles
The invention discloses a magnetic flocculant and application thereof in a cutting fluid wastewater treatment process, and relates to the technical field of sewage treatment. The preparation method of the magnetic flocculant comprises the following steps: impregnating modified magnetic nanoparticles in chitosan-poly-silicon ferrotitanium sulfate, carrying out ultrasonic treatment for 30-40 minutes, sucking out by using a high-strength magnet, drying at 50-60 DEG C, and repeating the steps of impregnating, sucking out and drying for 3-5 times to obtain the magnetic flocculant. The prepared flocculant is combined with an existing magnetic separation device, suspended particles and colloidal substances in the waste liquid are gathered to form flocs, meanwhile, organic matter in the waste liquid is adsorbed, and the purpose of efficiently and rapidly treating the grinding waste liquid is achieved through the magnetic attraction effect.
Owner:JIANGSU XINRUIJIE INTELLIGENT EQUIP CO LTD
Cutter and method for conducting self-driven micro-vibration cutting through cutter
PendingCN119550409Aeasily brokenReduce cutting forceMetal working apparatusTool bitStructural engineering
The invention discloses a tool and a method for conducting self-driven micro-vibration cutting through the tool, and relates to the technical field of machining, the tool comprises a tool bit and a tool bar, the tool bit is in a frustum shape, and the tool bit is fixedly connected with one end of the tool bar; the edge of the large bottom face of the tool bit is a cutting edge, the cutting edge is divided into a plurality of sections of sub-cutting edges in the circumferential direction of the tool bit, and a cutting groove is formed between any two adjacent sub-cutting edges of the tool bit. Each sub-cutting edge is gradually close to the cutter bar in the axial direction from one end to the other end, the end, close to the cutter bar, of each sub-cutting edge is a near end, and the end, away from the cutter bar, of each sub-cutting edge is a far end; one side of the cutting groove is the near end of one sub-cutting edge, and the other side of the cutting groove is the far end of the other sub-cutting edge. The method comprises the steps that S1, a to-be-machined workpiece is fixed to a workbench of a machine tool; s2, a cutter bar of the cutter is fixedly connected with a main shaft of the machine tool; and S3, the workpiece is cut through a cutter. Through the design of angles and sections of the cutting edges on the tool bit, self-driven micro-vibration is achieved, and therefore the machining quality and efficiency are improved.
Owner:SHENYANG AEROSPACE UNIVERSITY
Unmanned aerial vehicle knocking device
ActiveCN222508745Ueasily brokenreduce shakingAircraft componentsOverhead installationUncrewed vehicleStructural engineering
Owner:SICHUAN JIURUNXING TECH CO LTD
Preparation method of 1, 1, 3, 3-tetramethyl butyl peroxypivalate
ActiveCN119371345Aeasily brokenhigh yieldOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsSimple Organic CompoundsPtru catalyst
The invention discloses a preparation method of 1, 1, 3, 3-tetramethyl butyl peroxypivalate, and belongs to the technical field of organic compound preparation. The method comprises the following steps: mixing 1, 1, 3, 3-tetramethylbutyl hydroperoxide and pivaloyl chloride, pumping the mixture into a tubular fixed bed reactor filled with a catalyst, controlling the mass space velocity at 0.04-0.1 g.min <-1 > / g and the temperature at 20-35 DEG C to obtain 1, 1, 3, 3-tetramethylbutyl peroxide; the catalyst is a copper-vanadium molybdenum oxygen cluster [Cu (1-iPIM) 4] 3 [VMo12O40] catalyst. According to the present invention, the tubular fixed bed reactor is adopted to prepare the 1, 1, 3, 3-tetramethyl butyl peroxypivalate, and the flow rate and the material retention time can be accurately controlled to increase the utilization rate and the stability of the catalyst so as to achieve the continuous production of the 1, 1, 3, 3-tetramethyl butyl peroxypivalate.
Owner:LANZHOU AUXILIARIES FACTORY
Cylindrical battery
The utility model relates to the technical field of batteries, and provides a cylindrical battery which comprises a battery shell, a pole and an insulating part, and the battery shell comprises two end walls which are oppositely arranged along the axial direction of the battery shell; the pole comprises a riveting part, and the pole is riveted on at least one end wall through the riveting part; the insulating part is at least partially arranged between the riveting part and the end wall, a missing part is formed on the insulating part, and the orthographic projection of the riveting part on the plane where the end wall is located and the orthographic projection of the missing part on the plane where the end wall is located at least partially coincide; the area defined by the outer edge of the orthographic projection of the riveting part on the plane where the end wall is located is S1, the area defined by the outer edge of the end wall is S2, and S1 / S2 is 5%-35%. According to the utility model, the insulating part is not easy to break and damage.
Owner:CALB GROUP CO LTD
Uniform drying device for cement grinding aid
The utility model relates to a uniform drying device for cement grinding aid, which comprises a tank body, a mounting cavity is arranged in the tank body, a barrel body is rotatably connected in the mounting cavity, a drying cavity is arranged in the barrel body, a rotating barrel is rotatably connected in the drying cavity, a spiral blade for conveying grinding aid powder is arranged on the periphery of the rotating barrel, and a material lifting blade is arranged on the inner wall of the barrel body. The multiple material lifting blades are arranged at intervals in the radial direction and the axial direction, a first connecting part which extends downwards and extends out of the mounting cavity is arranged at the bottom of the barrel body, the first connecting part is connected with a first driving mechanism, and a second connecting part which extends upwards and extends out of the mounting cavity is arranged at the top of the rotating barrel; the second connecting part is connected with a second driving mechanism which is used for driving the barrel to rotate. The cement grinding aid powder scattering device has the following advantages and effects that cement grinding aid powder can be scattered in the conveying process of the cement grinding aid powder, so that the cement grinding aid powder can be dried more sufficiently and uniformly.
Owner:ZHEJIANG TONGXIANG ZHONGSEN CEMENT GRINDING TECH
Steering device for glass processing
ActiveCN222475500Ueasily brokenImprove the protective effectCharge manipulationConveyor partsControl engineeringStructural engineering
The utility model discloses a steering device for glass processing in the technical field of glass processing, which comprises a processing circular truncated cone, the lower end of the processing circular truncated cone is fixedly connected with a steering device, the upper end of the processing circular truncated cone is rotatably connected with a steering roller, and the steering device is fixedly connected with the steering roller through a shaft. A hydraulic air cylinder shaft is fixedly connected to the interior of the steering roller, a positioning tray is fixedly connected to the upper end of the hydraulic air cylinder shaft, four fixing connecting rods are fixedly connected to the upper end of the steering roller, and an electric suction cup is fixedly connected to one end of each fixing connecting rod. According to the arrangement, positioning is carried out through pre-placement, fixing is carried out through electric adsorption after placement, the situation that glass is prone to being damaged during clamping and fixing is avoided, and the better protection effect is achieved.
Owner:NINGXIA LIQIU GLASS TECH CO LTD
Surface strengthening method for titanium-based piston rod part
PendingCN119640201AImprove wear resistanceIncreasing the thicknessFurnace typesSolid state diffusion coatingTitaniumTitanium alloy
The invention discloses a surface strengthening method for a titanium-based piston rod part. The method comprises the following steps: 1, carrying out stretching deformation treatment on the titanium-based piston rod part to obtain the titanium-based piston rod part after tissue deformation; secondly, isothermal recovery is conducted on the titanium-based piston rod part obtained after tissue deformation, and the titanium-based piston rod part obtained after tissue regulation and control is obtained; and thirdly, the titanium-based piston rod part obtained after structure regulation and control is put into a direct-current pulse ion nitriding furnace, nitriding gas is introduced after vacuumizing, auxiliary heating and a pulse power source are started for heat preservation nitriding, and the titanium-based piston rod part with a nitriding layer on the surface is obtained. According to the method, a deformation recovery and ion nitriding combined method is adopted, the structure is effectively broken and stabilized, more effective channels are provided for diffusion of nitrogen atoms into a matrix in the nitriding process, the nitriding efficiency and the thickness of a nitriding layer are improved, and the wear resistance of a titanium-based piston rod part is enhanced; meanwhile, mechanical properties such as stretching and fatigue of titanium-based piston rod parts are not reduced, and the method is suitable for the field of titanium alloy nitriding.
Owner:XIAN SURFACE MATERIAL PROTECTION CO LTD
PDC (Polycrystalline Diamond Compact) drill bit with telescopic auxiliary blades at core part
ActiveCN222633188UImprove rock breaking efficiencyeasily brokenDrill bitsConstructionsMining engineeringPolycrystalline diamond
The utility model discloses a core auxiliary blade telescopic PDC (polycrystalline diamond compact) drill bit which comprises a drill bit base body, a containing cavity is formed in the center of the top of the drill bit base body, a high-strength alloy spring is arranged in the containing cavity, and a center blade is inserted into the containing cavity and arranged above the high-strength alloy spring. And a plurality of core conical teeth are uniformly distributed at the top of the central cutter wing at intervals. When the drill bit breaks rocks, the peripheral cutting teeth cut and destroy rocks on the outer ring of the shaft bottom, the center rocks at the center of the shaft bottom push the center blades into the containing cavities to form rock bosses, the hardness of the center rocks is reduced, the springs stop moving after being compressed to a certain degree, the core conical teeth plough and break the rocks, and the higher the hardness of the rocks is, the higher the formed rock bosses are; based on the drill bit, self-adaption and stable drilling speed can be achieved when the drill bit is used for drilling soft and hard stratums, and high drilling speed can be achieved when the drill bit is used for drilling hard stratums.
Owner:CNOOC TIANJIN BRANCH
Preparation and application of yolk-shell structure body phase hydrodesulfurization catalyst based on hydrogen overflow
ActiveCN119524885Acontrol contenthigh densityCatalyst activation/preparationHydrocarbon oils treatmentHydration reactionPtru catalyst
The invention discloses preparation and application of a yolk-shell structure body phase hydrodesulfurization catalyst based on hydrogen overflow, and the preparation method comprises the following steps: (1) adding nickel nitrate hexahydrate into an aqueous solution of glycerol, isopropanol and deionized water, and carrying out solvothermal reaction on a green solution to obtain a solid spherical nickel composite precursor; (2) mixing the nickel composite precursor with an ethanol solution of thioacetamide, and adding an ammonium heptamolybdate aqueous solution to obtain a turbid liquid; and performing solvothermal reaction on the turbid liquid to obtain the yolk-shell structure catalyst. The yolk-shell structure catalyst with rich NiMoS phases is controllably derived by adopting a limited range vulcanization coupling in-situ intercalation strategy. Under the action of confinement vulcanization, organic molecules are intercalated in situ and assist in constructing stable 1T-MoS2 with short plate length and low stacking, so that full exposure of rim sites is promoted. According to the catalyst, an inner core NiS2 is used as an auxiliary active phase to trigger a hydrogen overflow effect, and cooperation of double active phases is promoted through an egg yolk-shell structure, so that ultra-deep desulfurization of an oil product is realized.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)