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15results about How to "Guaranteed stretching effect" patented technology
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Film traction device
Owner:HEBEI KANGSHENGDA ELECTRONIC TECH CO LTD
Self-supporting alloy negative electrode and preparation method thereof
PendingCN119480908AEasy to prepareSuitable for large-scale productionElectrode carriers/collectorsVacuum evaporation coatingElectrolytic agentCopper foil
The invention relates to a self-supporting alloy negative electrode and a preparation method thereof. The negative electrode is a composite material containing metal, an intermetallic compound and a high polymer material. The preparation method comprises the following steps: firstly, preparing a copper foil with a circular through hole structure through a direct current electrodeposition method, then coating a layer of polymer insulating film on one surface of the copper foil, and then depositing a layer of dual-phase alloy negative electrode active material on the other surface of the copper foil through a double-target co-sputtering method. And dropwise adding a colloidal electrolyte on the surface of the active material, curing at a certain temperature, and finally pre-embedding lithium to obtain the final alloy negative electrode. The prepared alloy negative electrode has outstanding electrochemical performance: the gram volume is higher than 1000mAh / g, the lithium intercalation and deintercalation potential is lower than 0.5 V (Vs Li / Li < + >), and the alloy negative electrode has high volume and mass energy density; the cycle life is long, and the material can stably circulate for more than 100 cycles; the growth of lithium dendrites can be inhibited, the risk of short circuit is avoided, and the safety is high. The preparation method of the electrode material is simple, and industrial large-scale production can be realized.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Hot rolled steel strip correcting and straightening device
ActiveCN224058402UEasy to change spacingEasy to adjust spacingMetal-working feeding devicesPositioning devicesMetal machiningStructural engineering
The utility model relates to the technical field of metal processing, and provides a hot rolled steel strip correcting and straightening device which comprises a base, a downward pressing structure is fixed on one side of the top end of the base, an adjusting structure is arranged on the side, away from the downward pressing structure, of the top end of the base, and the adjusting structure comprises an adjusting groove formed in the side, away from the downward pressing structure, of the top of the base. The adjusting structure further comprises a servo motor fixedly installed on the outer wall of one side of the base, and adjusting blocks are arranged on the two sides of the interior of the adjusting groove. By arranging the adjusting structure, the adjusting blocks can be driven to move oppositely or reversely under the rotating action of the lead screw, so that the distance between the limiting rollers can be conveniently changed, the limiting distance of the limiting rollers in use can be conveniently adjusted, and the steel belt limiting device is suitable for steel belts with different widths; according to the hot rolled steel strip straightening and straightening device, the function that the distance between the limiting rollers in the using process is conveniently adjusted is achieved, and the applicability of the hot rolled steel strip straightening and straightening device in the using process is improved.
Owner:ZHUQIAO METAL MATERIALS QIDONG CO LTD
Ultrathin composite current collector base film preparation equipment and preparation process thereof
InactiveCN119500633AGuaranteed stretching effectImprove the preparation effectCleaning using toolsCleaning using liquidsElectric machineStructural engineering
The invention relates to the technical field of base film preparation, in particular to ultrathin composite current collector base film preparation equipment and a preparation process thereof.The ultrathin composite current collector base film preparation equipment comprises a bottom plate, mounting plates are fixedly connected to the two sides of the bottom plate, a rotating shaft is rotationally connected between the two mounting plates, and a winding roller fixedly sleeves the outer side wall of the rotating shaft; a cleaning box is fixedly connected between the two mounting plates, a trigger mechanism is arranged in the cleaning box, the trigger mechanism comprises inlets formed in the upper side and the lower side of the cleaning box, driving motors are fixedly connected to the two sides of the cleaning box, and through arrangement of a brush and other mechanisms, a base film can enter the cleaning box before being stretched; the base film entering the cleaning box can be contacted and scraped by the brush, when the brush is contacted and scraped to clean impurities on the surface of the base film, the spraying barrel can spray purified air to the surface of the base film and purge the impurities, and the subsequent stretching effect of the base film on the rotating shaft can be guaranteed by cleaning the impurities on the surface of the base film.
Owner:ZHEJIANG TRIUMPH NEW MATERIAL CO LTD
Explosion-proof oil for preventing paper from bursting and preparation method of explosion-proof oil
The invention relates to the technical field of polyurethane resin, in particular to explosion-proof oil for preventing paper from bursting and a preparation method of the explosion-proof oil. The explosion-proof oil is prepared from the following raw materials: diisocyanate, a chain extender, polyol, a catalyst, tartaric acid, a pH value regulator, deionized water, acetone, a flame retardant, a lubricant, a leveling agent, a defoaming agent, an antioxidant, an anti-ultraviolet agent and a functional filler. The chain extender is formed by matching 2, 2-dimethylolpropionic acid with small molecule diol; the polyol is micro-branched polyester diol with the molecular weight of 2000 to 5000 or mixed polyol formed by matching the micro-branched polyester diol with the molecular weight of 2000 to 5000 with polyether diol and / or polycarbonate diol with the molecular weight of 1000 to 2000. The anti-explosion oil provided by the invention can prevent paper from bursting and improve the use performance of the paper on a packaging material, and the anti-explosion oil is a water-based emulsion system and is more environment-friendly and green.
Owner:SHANGHAI XIANGCANG PACKING & PRINTING CO LTD
Roller assembly for a guide rail guard
ActiveCN224334046UGuaranteed stretching effectavoid wear and tearLarge fixed membersMaintainance and safety accessoriesStructural engineeringMechanical engineering
This utility model discloses a roller accessory for a guide rail protective cover, belonging to the technical field of protective cover technology. It includes a mounting plate with two connecting feet fixedly connected to its bottom end. Each connecting foot has a rotating hole, and a shaft is rotatably connected within these holes. A roller assembly is fixedly connected to the circumferential surface of the shaft, and the roller assembly is located between the lower side of the mounting plate and the two connecting feet. In this utility model, the mounting plate is connected inside the guide rail protective cover, and both ends of the shaft are rotatably connected to the two rotating holes on the connecting feet. When the protective cover extends or retracts on the guide rail, the roller assembly contacts the guide rail and rolls. During the rolling process, the rolling force is always concentrated at the rotating connection point between the shaft and the two connecting feet, thus ensuring stable rolling regardless of the width of the rollers. This guarantees the extension and retraction effect of the guide rail protective cover and avoids wear caused by direct friction between the non-rotating rollers and the guide rail.
Owner:JIANGSU KRIUS MACHINE TOOL ACCESSORIES
Processing method for laminating flexible materials
The present invention discloses a process method for laminating flexible materials. The process method laminates the flexible materials on a shell part with an opening at the upper end based on a pressure processing device. The pressure processing device comprises an upper die group and a lower die group which can move relative to each other in an upward and downward direction. The lower die group is used for placing a circulation tooling on which a component to be processed is placed. The upper die group is arranged above the lower die group. The upper die group comprises a pressing structure. The process method for laminating flexible materials comprises the following steps: placing the circulation tooling on which the component to be processed is placed on the lower die group; driving the upper die group or the lower die group to move so that the pressing structure stretches the flexible material in the component to be processed downward and horizontally; when the current drawing rate of the flexible material meets the preset conditions, driving the upper die group or the lower die group to move to a mold closing state to obtain a finished assembly in which the flexible material and the inner surface of the shell part with an opening at the upper end are pressed together.
Owner:GOERTEK INC
A kind of suspender for through steel box tied arch bridge
The utility model relates to bridge equipment technical field, concretely is a kind of derrick for through steel box tied arch bridge, including derrick cable body sheath pipe, the inside of derrick cable body sheath pipe is equipped with several derrick cable bodies, the outside of derrick cable body sheath pipe upper and lower end is slidably connected with anchor head pipe, each anchor head pipe outside is fixed with conical screw rod, each conical screw rod outside is equipped with spherical nut, each spherical nut outside is equipped with protective cover, each protective cover inboard is fixed with embedded pipe, each embedded pipe inside is slidably connected with damping body, the outside of lower end embedded pipe is equipped with waterproof cover;The utility model can guarantee the stability of derrick cable body sheath pipe by derrick cable body sheath pipe and cable body inner sheath pipe, to guarantee the stability of derrick cable body, to guarantee tensile effect, embedded pipe is used for positioning damping body, damping body can be damped, to guarantee the stability of derrick cable body sheath pipe.
Owner:ZHEJIANG INST OF COMM CO LTD
Flexible stretchable grounding device
ActiveCN120637919BAvoid disconnect situationsGuaranteed electrical conductivityHull structureStructural engineering
A flexible, stretchable grounding device, belonging to the field of marine technology, includes a grounding structure with connecting shafts at both ends. The grounding structure comprises two sleeves, with a braided wiring strip placed between them. Wire ends are fixedly installed at both ends of the braided wiring strip, and a fixing pad is fixedly installed inside the sleeves. The connecting shafts are fixed between the equipment body and the ship structure using bolts and tightened. Since the sleeves are made of multiple single-wire braids, they have a certain degree of tensile strength, allowing for some displacement when connecting the equipment body and the ship structure. This avoids the possibility of the yellow-green grounding wire breaking off from the equipment body or ship structure without requiring sufficient displacement margin. Furthermore, its surface is coated with a tin-zinc anti-corrosion coating, ensuring conductivity, tensile strength, and good corrosion resistance.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
Flame-retardant rubber containing bismuth-based flame retardant and preparation method of flame-retardant rubber
The invention provides flame-retardant rubber containing a bismuth-based flame retardant and a preparation method of the flame-retardant rubber, and belongs to the technical field of flame-retardant rubber. Natural rubber, nitrile rubber, butadiene styrene rubber and chloroprene rubber are adopted as main base materials, and at least one of bismuth oxide, bismuth oxychloride, bismuth hydroxide and bismuth subcarbonate is introduced as an environment-friendly flame retardant, so that the flame-retardant effect of the product is ensured; meanwhile, the use of complex solvents and the discharge of potential byproducts are reduced, and the method is an important way for realizing ideal green life. Carbon black, stearic acid, zinc oxide, decabromodiphenyl ethane, aluminum diethylphosphinate, diethyl phthalate, paraffin oil, a coupling agent, insoluble sulfur, an accelerant, an anti-aging agent and other substances are also added, and through multiple times of mixing and banburying, the tensile property of the product is guaranteed, meanwhile, the fireproof performance of the product is effectively improved, ignition is delayed, and the flame propagation speed is reduced; and the use safety of the product is improved.
Owner:CENT SOUTH UNIV +1
A liquefied gas storage tank and a ship for transporting liquefied gas
PendingCN122083243AGuaranteed stretching effectImprove low-temperature sealing reliabilityNon-pressured vesselsHull shellsCryogenic sealTower
This invention discloses a liquefied gas storage tank and a vessel for transporting liquefied gas. The liquefied gas storage tank includes a main shielding layer that contacts the liquefied gas on one side, a secondary shielding layer disposed on the other side of the main shielding layer, and at least one liquefied gas loading / unloading tower. The base of the liquefied gas loading / unloading tower includes: a lower part of the base body fixedly connected to the bottom wall; a corrugated plate of the secondary shielding layer connected to the lower part of the base body; and a closed end at one end of at least one corrugation of the secondary shielding layer facing the lower part of the base body. An upper part of the base body has mounting holes in the main shielding layer, through which the upper part of the base body is fixedly connected to the lower part of the base body. By opening mounting holes on the flat surface of the main shielding layer to achieve the installation of the pump tower base, the integrity of the corrugated structure of the main shielding layer is fully preserved, ensuring the expansion and contraction performance of the main shielding layer in low-temperature environments and improving the low-temperature sealing reliability of the storage tank.
Owner:SINOTECH ENERGY CO LTD
Variable speed temperature controlled stretching device for nylon filament
The utility model relates to nylon filament stretching technical field, specifically disclose a kind of nylon filament variable-speed temperature control stretching device, including device baseplate, the side of device baseplate is connected with guide roller by bearing rotation, the sidewall of device baseplate is equipped with the stretching component for to filament stretching, the one end of device baseplate is equipped with the cleaning component for to filament cleaning;The stretching component includes low-speed roller, the low-speed roller is installed in the sidewall of device baseplate, the one end of low-speed roller is fixed with driving wheel, the outer wall of driving wheel is connected with belt.The stretching component of being set, driving wheel rotates by belt and drives driven wheel to rotate when driving wheel rotates, the rotational speed of driven wheel is greater than driving wheel, and further synchronous drive high-speed roller rotates, under the cooperation of low-speed roller, can be stretched to filament, and the rotational speed of stepper motor is controlled by controller, the rotational speed of high-speed roller and low-speed roller can be adjusted, the effect of synchronization can be realized, guarantee the stretching effect of long line.
Owner:NANTONG HONGXIANG CHEM FIBER CO LTD
Portable loading tool
PendingCN119469994AImprove convenienceEfficiencyMaterial strength using tensile/compressive forcesCooperative workLifting equipment
The invention provides a portable loading tool, and relates to the technical field of loading tools, the portable loading tool comprises a fixed arm, a pressing arm, a lifting device and a connecting piece, one end of the fixed arm is rotatably connected with one end of the pressing arm, the other end of the fixed arm is provided with a guide through hole, the other end of the pressing arm is provided with a first through hole, and the first through hole is connected with the lifting device. One end of the connecting piece is used for penetrating through the first through hole and the guide through hole to be connected with the workpiece, the other end of the connecting piece is used for being connected with the pressing arm, the fixed end of the lifting equipment is connected with the end, close to the guide through hole, of the fixed arm, and the movable end of the lifting equipment is used for abutting against the pressing arm. Through cooperative work of the fixing arm, the pressing arm, the lifting equipment, the connecting piece and the fixing assembly, the use convenience of the loading tool is effectively improved.
Owner:BEIJING WUTIAN TECH CO LTD
High-recovery spandex fiber and preparation method thereof
ActiveCN119409921AFacilitate cross-linkingIncrease the number ofTextile/flexible product manufactureMonocomponent synthetic polymer artificial filamentFiberPolymer science
The invention discloses a high-resilience spandex fiber and a preparation method thereof, and belongs to the technical field of elastic fibers.According to the spandex fiber, a prepolymer solution is prepared from polytetrahydrofuran and MDI, the prepolymer solution reacts with a chain extender mixed solution to form a polyurethane urea solution, and high-resilience spandex is obtained through dry spinning of the polyurethane urea solution; wherein the chain extender mixed solution contains diethanol amine, p-phenylenediamine and diethylenetriamine, and further contains 2, 6-diaminopyridine and / or 2, 5-di (aminomethyl) furan. According to the method, the performance of the obtained spandex fiber can be improved, the elongation at break and the elastic recovery rate of the fiber can be improved, the moisture absorption performance of the obtained spandex fiber can be improved, and therefore the comfort degree of a fabric made of the spandex fiber is improved.
Owner:HANGZHOU LIZHE CULTURAL & CREATIVE TECH CO LTD +2
Honeycomb core continuous stretcher
ActiveCN222491850UInfluence artificial bondingGuaranteed stretching effectMetal-working apparatusFastening meansHoneycombStructural engineering
The utility model discloses a honeycomb core continuous stretcher which comprises a horizontal bonding module, a horizontal bonding module, a horizontal bonding module, a first driving part, a second driving part, a second driving part, a horizontal bonding module and a control module, the horizontal bonding module comprises a working table, a bonding pressing plate and a flat pressing plate, honeycomb core strips are placed on the working table, and the bonding pressing plate is connected to the working table in a sliding mode and fixedly installed at the output end of the first driving part; the flat pressing plates are fixedly installed at the output end of the second driving part and comprise the front flat pressing plate and the rear flat pressing plate, and the bottom face height of the front flat pressing plate is smaller than that of the rear flat pressing plate; the storage module comprises a guide inclined surface and a bearing bottom surface; the friction force control module comprises a stretching supporting piece, and the honeycomb core plate bypasses the surface of the stretching supporting piece; and the rolling module is used for rolling and pulling the honeycomb core plate to advance. Compared with the prior art, the honeycomb core stretching device solves the problems that an existing honeycomb core stretching device cannot effectively control flatness of aluminum strips after bonding and is low in stretching quality.
Owner:SUZHOU YUNTU AUTOMATION EQUIP CO LTD