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662results about How to "Strong enough" patented technology

Lightweight dynamic security authentication method and system implemented based on PUF (Physical Unclonable Function)

The invention discloses a lightweight dynamic security authentication method and system based on PUF (Physical Unclonable Function), and the method comprises the steps: S1, a server side collects to-be-registered information, generates a random challenge and auxiliary information, receives a response corresponding to the challenge generated by an IOT (Internet of Things) device side through a PUF structure, and sends the response to the server side; storing the pseudonym and the private key of the registered user and the CRP pair of the user equipment; s2, when the server side receives the authentication request, the server side initializes the authentication request, generates a challenge of the next round of authentication by using the challenge of the current authentication in the initialization process, and sends the challenge of the next round of authentication to the Internet of Things equipment side; the server side verifies the identity of the device after receiving the data packet sent by the Internet of Things device side; and S3, updating a next round of pseudonym at the server side, generating a next round of challenge and CRP pair by the server side, and sending the challenge and CRP pair to the Internet of Things equipment side. The method has the advantages of being simple in implementation method, small in resource overhead, high in flexibility, capable of dealing with various security threats and the like.
Owner:NAT UNIV OF DEFENSE TECH

Battery cell and battery pack

The invention relates to the technical field of batteries, in particular to a battery cell and a battery pack. According to the battery cell, a first cover plate is provided with a pressure relief channel and a supporting boss; the pressure relief piece is mounted in the pressure relief channel; the blocking piece is arranged on the supporting boss, the blocking piece and the pressure relief channel are oppositely arranged in a spaced mode, a first pressure relief hole is formed in the blocking piece, and a second pressure relief hole is formed in the insulation protection piece; the effective opening area of the pressure relief piece is S1, the total area of the first pressure relief holes is S2, the total area of the second pressure relief holes is S3, S2 / S1 is larger than or equal to 1.22 and smaller than or equal to 1.3, and S3 / S2 / 1.6 is larger than or equal to 1.6 and smaller than or equal to 2. When the temperature of the battery cell is relatively low, the insulation protection piece has enough strength and ensures that the exhaust rate is not influenced; when the internal insulating part is fused and fails, and the pole group moves in the direction close to the pressure relief part, the baffle part can support the pole group to ensure the exhaust requirement, and can also prevent comburent in the battery cell from splashing outwards through the pressure relief part, so that the safety performance of the battery cell is improved.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Seamless metal composite pipe rolling equipment with multi-fulcrum guide plate adjusting device and method

The invention belongs to the technical field of metal processing and forming, and particularly relates to seamless metal composite pipe rolling equipment with a multi-fulcrum guide plate adjusting device and a method. The multi-fulcrum guide plate adjusting device comprises an adjusting hydraulic cylinder, a base end cover, a sliding block seat, a sliding block seat pressing plate, a push rod, a Y-shaped connecting frame, a guide plate, a pin shaft, a pin shaft baffle, a sliding block seat end cover, a locking seat, a locking hydraulic cylinder, a universal coupling and an adjusting rod. The guide plate is accurately controlled through the adjusting hydraulic cylinder and the locking hydraulic cylinder to achieve up-down, autorotation, swinging and other multi-freedom-degree position adjustment, the device can be suitable for rolling processes with different working condition requirements, the guide plate does not need to be replaced many times, rolling can be conducted only by adjusting the guide plate, and after the guide plate works for a long time and is abraded, the service life is prolonged. Abrasion loss can be compensated by adjusting the position of the guide plate, and production efficiency is improved; and meanwhile, the push rod and the adjusting rod are clamped and locked through the locking hydraulic cylinder, and it is guaranteed that the multi-fulcrum guide plate adjusting device has enough strength in the rolling compounding process.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

High-purity aluminum oxide ceramic substrate and preparation process thereof

The invention relates to the technical field of electronic ceramic materials, and particularly discloses a high-purity aluminum oxide ceramic substrate and a preparation process thereof. The high-purity aluminum oxide ceramic substrate is prepared from the following raw materials in parts by weight: 0.20 to 0.25 part of magnesium oxide, 0.35 to 0.55 part of zirconium oxide, 1.2 to 1.5 parts of dispersing agent, 60 to 65 parts of ethanol, 99.7 to 99.8 parts of aluminum oxide, 12 to 15 parts of adhesive, 6 to 9 parts of plasticizer and 50 to 55 parts of n-butyl alcohol, the adhesive is a mixture of polyvinyl butyral, water glass and modified paraffin. The prepared high-purity aluminum oxide ceramic substrate has excellent chemical stability and mechanical strength, and the obtained aluminum oxide ceramic substrate has better density, mechanical property and thermal stability by mixing various raw material components, and is not easy to break when subjected to bending load.
Owner:SUZHOU JINGCI SUPER HARD MATERIALS

Copper-steel composite board and preparation method thereof

The invention relates to a copper-steel composite plate and a preparation method thereof, the copper-steel composite plate comprises an outer layer carbon steel plate and a core layer oxygen-free pure copper plate, and at least one surface of the oxygen-free pure copper plate integrally and continuously covers the carbon steel plate; the carbon steel plate comprises the following chemical components: 0.05%-0.20% of C, 0.1%-0.55% of Si, 0.5%-2.0% of Mn, less than or equal to 1.0% of Cr, less than or equal to 1.5% of Ni, less than or equal to 1.0% of Cu and the balance of Fe. The thickness of the copper-steel composite plate is 30-120 mm, and the ratio of the thickness of the oxygen-free pure copper plate to the thickness of the copper-steel composite plate is 0.4-0.8. According to the copper-steel composite plate, the yield strength is larger than or equal to 209 MPa, the tensile strength is larger than or equal to 359 MPa, the shear strength is larger than or equal to 213 MPa, and the copper-steel composite plate has good structural strength and interface bonding strength.
Owner:SHOUGANG GROUP CO LTD +1

Multifunctional electronic product screen protection film and preparation method thereof

The invention discloses a multifunctional electronic product screen protective film and a preparation method thereof. The protective film comprises a modified base film and a multifunctional composite layer compounded on the surface of the modified base film, the multifunctional composite layer comprises an elastic buffer layer and a self-repairing layer which are sequentially arranged from inside to outside; wherein the elastic buffer layer is an elastic buffer layer with gradient density; the elastic buffer layer comprises the following components in parts by weight: 100 parts of a thermoplastic polyurethane elastomer, 15-25 parts of hollow glass microspheres, 10-15 parts of polyethylene glycol and 3-6 parts of an isocyanate cross-linking agent; the self-repairing layer comprises the following components in parts by weight: 100 parts of a dynamic reversible covalent bond polymer, 30-40 parts of phase change material microcapsules, 10-15 parts of nano cellulose, 5-8 parts of a near-infrared photosensitive initiator and 2-4 parts of an antioxidant. Compared with the prior art, the protective film provided by the invention has excellent scratch self-repairing performance, good adhesion and high anti-explosion screen performance.
Owner:东莞市鸿富瀚科技有限公司

Non-pyrotechnic secondary satellite and rocket locking and separating device

The invention relates to a non-pyrotechnic secondary satellite and rocket locking and separating device which comprises a shape memory alloy primary separating assembly, a pressing and releasing assembly and a turntable four-claw secondary clamping and separating assembly, and the shape memory alloy primary separating assembly is arranged in a box body of the pressing and releasing assembly; one end, extending out of the shell, of a grooving bolt shaft of the shape memory alloy first-stage separation assembly penetrates through a through hole of the separation block to be connected with a nut, and the shape memory alloy rod provides driving force for the shape memory alloy first-stage separation assembly to jointly form a first-stage unlocking mechanism; a clamping jaw guide groove of the rotary table four-jaw two-stage clamping and separating assembly is fixed to the bottom plate, a rotary table controls a clamping jaw set to be locked, and clamping jaws are connected with a separating block of the pressing and releasing assembly to jointly form a two-stage unlocking mechanism. When the device is locked, after being locked by the shape memory alloy first-stage separation assembly, the device is locked by the turntable four-claw second-stage clamping separation assembly; when the device is separated, the device is unlocked by the turntable four-claw secondary clamping and separating assembly, and then is unlocked by the shape memory alloy primary separating assembly.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Control method, device and equipment of middle sound equipment and medium

The invention relates to a control method, device and equipment of a middle sound box and a medium, and the method comprises the steps: obtaining an audio signal of an external sound source, and carrying out the preliminary amplification of the audio signal of the external sound source, and obtaining an audio signal after the preliminary amplification; performing sound effect enhancement processing on the preliminarily amplified audio signal to obtain a sound effect enhanced audio signal; acquiring working environment data of the middle sound equipment and an audio input format of the audio signal after the sound effect is enhanced, and determining an output mode of the audio signal after the sound effect is enhanced according to the working environment data and the audio input format; and according to the output mode of the audio signal after sound effect enhancement, outputting the audio signal after sound effect enhancement through a corresponding built-in loudspeaker. The method has the effect of improving the sound effect experience of the user.
Owner:SHENZHEN WEPROTALK TECH CO LTD

Phase change fiber membrane with composite core-sheath structure as well as preparation method and application of phase change fiber membrane

The invention discloses a phase change fiber membrane with a composite core-sheath structure and a preparation method and application thereof.The method comprises the steps that polyacrylonitrile is dissolved in N 'N-dimethylformamide and stirred to be completely dissolved, then hydroxylated boron nitride is added, the hydroxylated boron nitride is evenly dispersed through ultrasonic treatment, and a sheath spinning precursor solution is prepared; dissolving polyethylene glycol in N 'N-dimethylformamide, stirring to melt the polyethylene glycol, and taking the polyethylene glycol as a core layer spinning precursor solution; preparing a phase change fiber membrane with a core-sheath structure from the sheath spinning precursor solution and the core spinning precursor solution through a coaxial electrostatic spinning process; and placing the phase change fiber membrane with the core-sheath structure in an ethanol dispersion liquid of hydroxylated boron nitride, carrying out ultrasonic dip-coating, and then carrying out cold pressing treatment to prepare the phase change fiber membrane with the composite core-sheath structure. The obtained composite core-sheath structure phase change fiber membrane has good latent heat property, thermal conductivity and flexibility, and meanwhile, leakage of the phase change material is prevented through the core-sheath structure.
Owner:SHAANXI UNIV OF SCI & TECH

Tea polyphenol modified polyferric flocculant as well as preparation method and application thereof

The invention discloses a tea polyphenol modified polyferric flocculant as well as a preparation method and application thereof, and belongs to the field of anaerobic fermentation biogas slurry dehydration. Polyferric sulfate is used as a chain main body, tea polyphenol is used as a cross-linking agent, the tea polyphenol and iron ions in the polyferric sulfate form chelating coordination bonds under an alkaline condition, and the polyferric sulfate modified polyferric flocculant is prepared. Meanwhile, hydrophilic ether oxygen bonds in polyethylene oxide are combined with phenolic hydroxyl groups to form hydrogen bonds, so that a three-component polymer network is formed. Compared with the conventional flocculant, the modified polyferric flocculant prepared by the invention has the advantages that the electrical neutralization capability is enhanced, the adsorption bridging capability and the net repair sweeping capability of the flocculant are improved through coordinate bonds and hydrogen bonds, the floc forming rate is higher, the floc is larger and higher in strength, the sedimentation rate is higher, and the turbidity and the organic matter removal rate are high.
Owner:NANJING UNIV

Polishing equipment for tong head

The invention provides grinding equipment for a tong head. The grinding equipment comprises a supporting assembly, a grinding assembly and a bearing assembly. The grinding assembly is connected with the supporting assembly and arranged on the upper portion of the bearing assembly. The grinding assembly is provided with a driving mechanism and a grinding wheel, the driving mechanism is configured to drive the grinding wheel to move and rotate, the driving mechanism is provided with a second through hole, the grinding wheel is provided with a grinding disc and a cavity, the second through hole communicates with the cavity, and the cavity is configured to contain a lubricant; the bearing assembly is provided with a plurality of fixing grooves, the fixing grooves are connected with the fixing bases correspondingly, the fixing bases are configured to be used for installing to-be-polished tong heads, and the bearing assembly bears the fixing bases to rotate. The supporting assembly is designed to have enough strength and stability, enough supporting force is provided for the grinding assembly, and therefore the grinding precision and efficiency are guaranteed. A driving mechanism of the polishing assembly is designed to be capable of adjusting the position and the rotating speed of a polishing wheel so as to meet the polishing requirements of tong heads of different materials and shapes.
Owner:RUIER TECH XUZHOU CO LTD

Spiral fluted tap

The invention provides a spiral fluted tap which is provided with a thick handle part, a neck part and a thick-head thread part which are coaxially arranged, the helical angle beta of the thread part is greater than 40 degrees; the groove profile of the thread part is of a three-groove structure and is in a straight-line three-arc form; the screw tap is made of a high-speed steel material subjected to vacuum heat treatment and subzero treatment and is subjected to passivation treatment. The technical problems that a spiral fluted tap is unsmooth in chip rolling and discharging, short in service life, prone to being broken, unstable in performance and low in working efficiency are solved. The cutter is beneficial to numerical control multi-line grinding machining, sharp in cutting, beneficial to tight chip rolling, long in service life, high in machining stability and high in efficiency.
Owner:SHAANXI WEIHE TOOLS CO LTD

Die-casting forming method for aluminum alloy shell die casting

The invention discloses a die-casting forming method of an aluminum alloy shell die casting, which relates to the technical field of forming processing of metal parts and comprises the following steps: selecting materials, melting and refining, carrying out die-casting forming, shaping and trimming, refining and machining, cleaning and decontaminating, and assembling. Through fine polishing treatment and preheating measures, the problem of film sticking at a sprue is remarkably relieved, effective feeding, slow injection and rapid injection are achieved, the speed of an injection punch of rapid injection is larger than 6 m / s so that the density and quality of a final casting can be guaranteed, a cavity is divided into different temperature zones in the injection direction, staged cooling is conducted, and the casting quality is improved. The mold is opened 19-21 seconds after the cavity is filled with the raw materials, it is ensured that the casting has enough strength, deformation or damage is avoided, the high-performance requirement of the aluminum alloy shell of the automobile air conditioner compressor can be met, the production efficiency and the product quality can be improved, and meanwhile the influence on the environment is reduced.
Owner:CHONGQING YUXIANG PRECISION MASCH CO LTD

Woven carpet made of various plant fibers

The invention discloses a woven carpet of various plant fibers, which is characterized in that warp yarns A comprise yarns A spun by sisal fibers, warp yarns B comprise yarns B spun by hemp fibers or blended by hemp fibers and cotton fibers, weft yarns are yarns C spun by banana tree stem fibers, the weft yarns are wound above or below the warp yarns A in a staggered manner, two warp yarns A are wound by the weft yarns each time, and the weft yarns are wound by the weft yarns each time. The warps B are located between every two adjacent warps A at intervals, the wefts wound below the warps A are wound below the warps B in a staggered mode or between the warps B and the warps A, and the directions of every two adjacent wefts vertically wound on the warps A and the warps B are opposite. According to the structure, the thickness of the woven carpet made of various plant fibers is increased, and the top surface of the carpet is made of natural plant fibers; the friction coefficient between the silica gel layers on the surfaces of the warps B and the ground is large, so that slipping between the carpet and the ground is avoided, the warps A and the wefts can be matched to be woven more tightly through the action of the silica gel layers, and the overall softness of the carpet is further improved.
Owner:JIANGSU HIMALAYA NATURAL FIBER PROD

Torque transmission mechanism of manipulator

The invention discloses a torque transmission mechanism of a manipulator, which is applied between two adjacent joint centers of the manipulator, and comprises at least a first belt wheel and a second belt wheel which are respectively provided with a peripheral surface; the torque transmission belt comprises at least two layers of stacked transmission belts, at least one layer of transmission belt wraps the side face of the other adjacent layer of transmission belt, and each layer of transmission belt is provided with at least two installation ends. At least two mounting end parts of at least one layer of transmission belt are fixedly connected with two mounting end parts of the other adjacent layer of transmission belt respectively; relatively independent mobility is kept between the at least two layers of transmission belts in a connecting area formed between the mounting ends of the at least two layers of transmission belts. By the adoption of the scheme, it can be guaranteed that the size of the belt wheel in the mechanical arm is smaller to the maximum extent under the condition that the rated torque is met, and occupied space is smaller.
Owner:SUPER ELECTRONIC TECH (SHANGHAI) CO LTD

Light-weight aluminum support provided with water tank and used for fixing intermediate transmission shaft assembly of four-wheel drive vehicle

The utility model relates to a light-weight aluminum support with a water tank for a fixed intermediate transmission shaft assembly of a four-wheel drive vehicle, and belongs to the technical field of automobile transmission shafts. Comprising a middle transmission shaft assembly, a middle supporting metal plate support, an aluminum support and a water tank structure, the middle transmission shaft assembly is connected with the middle supporting metal plate support, the water tank structure is arranged at the bottom of the aluminum support, the middle supporting metal plate support is installed above the water tank structure of the aluminum support, and a plurality of through holes are formed in the water tank structure. The intermediate transmission shaft assembly structure is used for filtering sand and soil generated in the running process of a vehicle, so that deformation of the device caused by silt blockage and accumulation is avoided, and the service life of the intermediate transmission shaft assembly structure is prolonged.
Owner:CHERY AUTOMOBILE CO LTD

Reinforcing device for fabricated steel structure column and using method of reinforcing device

The invention provides a reinforcing device for a fabricated steel structure column and a construction method thereof.The reinforcing device comprises a bottom unit detachably connected with the ground through a connecting piece, the bottom face of the steel structure column is pressed on the bottom unit, and the bottom unit is provided with a clamping assembly used for being supported on the inner wall of the steel structure column; reinforcing units used for being clamped to the outer wall of the steel structure column are arranged on the two sides of the clamping assembly correspondingly, the height of each reinforcing unit is adjusted through a vertical driving assembly, and the distance between the two reinforcing units is adjusted through a transverse driving assembly. The bottom face of the steel structure column is completely attached to the bottom unit, the contact area of the bottom face of the steel structure column and the ground is indirectly increased, and therefore the overall stability of the steel structure column during installation and use is improved. The reinforcing positions of the reinforcing units and the steel structure columns are adjusted through the vertical driving assemblies, reinforcing of the reinforcing units and the steel structure columns with different inner diameters can be adjusted through the transverse driving assemblies, the application range is wide, and operation is accurate.
Owner:COMMUNICATIONS CONSTRUCTION CO OF CSCEC 7TH DIVISION CORP LTD +1

Impact type rotating wheel hollow water bucket structure and manufacturing method thereof

The invention discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.
Owner:TIBET DATANG ZHALA HYDROPOWER DEV CO LTD +1

Turbine blade structure and preparation method thereof

The invention provides a turbine blade structure and a preparation method thereof, and relates to the technical field of turbine.The turbine blade structure comprises a mounting base, a plurality of mounting holes are formed in the outer side of the mounting base, a plurality of blades are placed in the mounting holes, and first through holes are formed in the ends, located on the inner side of the mounting base, of the blades; the first through holes are connected through connecting rings, and the connecting rings are connected through first bolt assemblies. Blades are placed in the mounting holes and then are connected through the first bolt assemblies of the connecting rings, and therefore the problems that in the background technology, blades of an existing turbine impeller are difficult to disassemble and assemble and inconvenient to maintain and periodically check and replace, the size of the blades of the existing turbine impeller cannot be adjusted, and the size of the blades cannot be adjusted are effectively solved. And the technical problem that blades with different sizes cannot be flexibly used under different use conditions of the steam turbine is solved.
Owner:INNER MONGOLIA SHANGDU POWER GENERATION CO LTD

Superfine-aperture bipolar plasma resectoscope, combined suite and use method thereof

The invention relates to a superfine-caliber bipolar plasma resectoscope, a combined suite and a using method of the combined suite. The invention discloses a superfine-caliber bipolar plasma resectoscope which comprises an inner sheath, an electronic flexible lens, a plasma cutter and an operator, a connector is arranged at one end of the inner sheath and used for being connected with an external water source to inject water into the inner sheath. The electronic flexible lens and the plasma cutter are arranged in the inner sheath in a penetrating mode. According to the ultra-thin-caliber bipolar plasma resectoscope combination suite, the whole design thought is changed, the brand-new prostate bipolar plasma resectoscope structure which can keep the original function of the resectoscope unchanged and reduce the caliber is provided, an outer sheath is innovatively removed, the fistulization assembly is designed in a matched mode, and the structure is simple, convenient and practical. Meanwhile, the inner sheath serves as the outermost layer of the whole novel resectoscope structure, the electronic soft lens is used for replacing a traditional hard eyepiece, the diameter of the resectoscope is further reduced, and finally the diameter of the resectoscope stretching into the urethra can reach Fr6-Fr18.
Owner:安徽易镜医疗科技有限公司

High-strength composite corrugated board and preparation process thereof

The high-strength composite corrugated board is characterized by comprising an inner paper layer, a flexible composite layer, an adhesive paper layer, a paper core, a buffer foam board, a reinforced composite layer and a surface paper layer which are sequentially arranged from top to bottom, the upward waveform of the paper core is of a parabola-shaped top structure, and the downward waveform of the paper core is of a triangular vertex angle structure. The corrugated board has the beneficial effects that the compression resistance and the strength of the outer side and the stress buffering performance of the inner side are guaranteed, the overall strength and the bending resistance of the corrugated board are enhanced, the bonding strength is guaranteed by providing a new formula of the flame-retardant polyurethane foam and the waterproof polyurethane adhesive and a combined use method, and the service life of the corrugated board is prolonged. The toughness and the buffering effect are enhanced, the toughness and the pressure bearing capacity of the paperboard are enhanced, and meanwhile the excellent waterproof and flame-retardant effects are guaranteed.
Owner:宿迁科佳环保科技有限公司

High-toughness polyester composition and preparation method thereof

The invention discloses a high-toughness polyester composition and a preparation method thereof, and belongs to the field of polyester. The preparation method of the polyester comprises the following steps: carrying out melt blending on a part of polyester and an additive I to obtain a blend A, carrying out melt blending on the blend A and a flexibilizer to obtain a blend B, carrying out melt blending on the rest of polyester, an additive II and the blend B, and finally extruding and granulating the mixture or preparing the mixture into other proper shapes. The high-toughness polyester composition is prepared by adopting an innovative blending process, so that the dispersity of a toughening agent in a matrix is improved, and the compatibility of the matrix and the toughening agent is improved; meanwhile, it is accidentally found that the polyester composition still keeps excellent toughness and sufficient strength even if the use amount of the flexibilizer is reduced by 50% or above.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Damping rod of breaking hammer

The utility model relates to the technical field of breaking accessories, in particular to a breaking hammer damping rod which comprises a breaking hammer and a drill rod connected to the top of the breaking hammer, and a top sliding seat is installed in the drill rod in a sliding mode. The first groove and the second groove are formed in the drill rod, and the reset spring and the steel column are installed in the first groove and the second groove, so that an effective vibration reduction mechanism is formed. When the breaking hammer is impacted, the steel column can slide in the first groove, meanwhile, the reset spring is compressed, impact energy is absorbed through elastic deformation of the spring, and the damping effect is further enhanced through the arrangement of the hard spring. The top sliding seat is wound on the outer wall of the steel column in the second groove, and the top and the bottom of the top sliding seat are fixedly connected with the bottom of the second groove respectively. When the top sliding seat slides in the drill rod, the hard spring deforms, so that more impact energy is absorbed, and vibration transmitted to the breaking hammer is further reduced.
Owner:ANNING BENYUAN ECONOMIC & TRADE CO LTD

Diamond wire bus and diamond wire

ActiveCN119526621AReduce the probability of wire breakageimprove bindingGrinding machinesFine working devicesUltimate tensile strengthMetal
The invention provides a diamond wire bus and a diamond wire, the diamond wire bus comprises a base body and a coating layer covering at least part of the surface of the base body, the coating layer comprises a first metal layer, and the first metal layer covers at least part of the surface of the base body; the second metal layer covers at least part of the surface, far away from the substrate, of the first metal layer; the third metal layer covers at least part of the surface, far away from the first metal layer, of the second metal layer; wherein the first metal layer comprises first metal, the second metal layer comprises second metal, and the third metal layer comprises third metal and fourth metal; the content of third metal in the third metal layer increases progressively in the direction away from the second metal layer; the fourth metal and the second metal are the same metal. The outer surface of the third metal layer can keep sufficient strength and cannot fall off while achieving a lubricating effect, and the inner surface of the third metal layer is combined with the second metal layer, so that the cutting process of hard and brittle materials can be continuously carried out, and the cutting yield is improved.
Owner:ZHANGJIAKOU YUANSHI ADVANCED MATERIALS CO LTD

Self-leveling anti-dispersion underwater bottom sealing material and preparation method thereof

The invention belongs to the technical field of underwater construction materials, and particularly relates to a self-leveling anti-dispersion underwater bottom sealing material and a preparation method thereof. The self-leveling anti-dispersion underwater bottom sealing material disclosed by the invention is prepared from the following components in parts by weight: 530 to 730 parts of sulphoaluminate cement, 77 to 277 parts of ordinary Portland cement, 84 to 126 parts of fly ash, 870 to 950 parts of fine aggregate, 250 to 278 parts of water, 18 to 23 parts of a water reducing agent, 6 to 10 parts of a flocculating agent, 8 to 12 parts of a retarder, 0.9 to 1.4 parts of a de-foaming agent and 0.1 to 0.4 part of an early strength agent. The self-leveling dispersion-resistant underwater bottom sealing material disclosed by the invention has good fluidity and dispersion resistance.
Owner:SHIJIAZHUANG TIEDAO UNIV +2

Lyocell spinning equipment

The invention discloses lyocell spinning equipment which comprises a coagulating bath tank used for containing coagulating bath liquid; at least partial section of the wire guide pipe horizontally extends, one end of the wire guide pipe is provided with a liquid inlet communicated with the coagulating bath tank, and the other end of the wire guide pipe is provided with a wire outlet; the spinning nozzle is arranged above the coagulating bath tank, a spinning opening of the spinning nozzle faces a tank opening of the coagulating bath tank, and tows sprayed out of the spinning opening enter the coagulating bath tank to be preliminarily coagulated, then enter the yarn guide pipe to be coagulated and then are pulled out of a yarn outlet of the yarn guide pipe. According to the invention, through the cooperation of the coagulating bath tank, the spinning nozzle and the wire guide pipe, the optimized design of the spinning equipment is realized, the spinning nozzle sprays the fibers into the coagulating bath tank for preliminary solidification, then the tows enter the wire guide pipe, and the horizontal extension section of the wire guide pipe prolongs the retention time of the fibers in coagulating bath liquid, so that the fibers are ensured to be fully solidified; and the mechanical property and the quality consistency are improved.
Owner:JILIN FUBO FIBER RES INST CO LTD +1

Low-swing high-efficiency homogenizing stirring structure and stirring method

The invention discloses a low-swing high-efficiency homogenizing stirring structure and a stirring method, and fully considers that single-side glass flows into a stirring tank, nonuniform acting force is generated on a stirrer, long-term stable operation of the stirrer is influenced, and single-side flowing-in glass liquid is easy to form a viscosity-temperature segregation phenomenon at a near end; and the influence on the homogenization effect is weakened. The acting force transition of fluid before the fluid enters the stirring tank body is realized by adding the special-shaped buffer pool, and molten glass is continuously injected into the stirring tank in a 360-degree overflow manner, so that the rotation stability of the whole stirrer is remarkably improved, and full guarantee is provided for long-life reliability and high-flow efficient homogenization of equipment. According to the stirrer, uniform stress of molten glass on the stirrer in the circumferential direction can be realized, the problem of abnormal swinging of the stirrer in the operation process is remarkably improved, high-flow molten glass is efficiently homogenized, and an equipment guarantee is provided for manufacturing of high-flow substrate glass.
Owner:IRICO DISPLAY DEVICES CO LTD

Intelligent cooking equipment

The utility model provides intelligent cooking equipment which comprises a cooking cavity, a heating module used for heating the cooking cavity, a sound control acquisition module used for detecting cooking sound in the cooking cavity and a detection module, and the sound control acquisition module and the heating module are electrically connected with the detection module. When the heating module works, the sound control collection module detects sound signals generated in the cooking process and transmits the sound signals to the detection module, and the detection module controls the heating module to be turned on or turned off according to the sound signals collected by the sound control collection module. Specifically, a sound signal generated in the cooking process is detected through a sound control acquisition module, the cooking state of food can be monitored in real time, the problem of excessive or insufficient cooking caused by traditional timing control is avoided, the cooking quality is improved, unnecessary energy waste is avoided, and the energy utilization efficiency is improved; and the user does not need to manually adjust the cooking time or frequently check the cooking state, so that the use convenience and the user experience are improved.
Owner:ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD

Light energy and wave energy combined power generation device used in offshore area and use method of light energy and wave energy combined power generation device

The invention provides a light energy and wave energy combined power generation device for an offshore area and a use method, the light energy and wave energy combined power generation device is characterized by comprising a plurality of groups of power generation assemblies, and a limiting part is connected between every two adjacent groups of power generation assemblies; the power generation assembly comprises installation assemblies placed on the sea surface, the adjacent installation assemblies are connected through limiting parts, photovoltaic panels are installed at the top positions of the installation assemblies, the installation assemblies are connected with connecting arms, and the connecting arms are provided with arch-shaped elastic structures. One end of the arch-shaped elastic structure is fixedly connected to the position, close to the mounting assembly, of the connecting arm, the arch-shaped elastic structure is movably connected to the connecting arm, the end, connected with the connecting arm, of the arch-shaped elastic structure is connected with a wave energy power generation assembly, and the adjacent wave energy power generation assemblies are also connected through a limiting part; a fixing part is connected to the position, close to the connecting arm, of the bottom of the mounting assembly and fixed to the seabed. The device combines light energy and wave energy for power generation, and improves the efficiency of energy collection in offshore areas.
Owner:CHINA UNITED NORTHWEST INST FOR ENG DESIGN & RES