110results about How to "Reduce rigidity" patented technology

The invention discloses low-temperature-resistant perfluoroether rubber and a preparation method thereof, and the low-temperature-resistant perfluoroether rubber comprises the following raw material components in parts by weight: 80-120 parts of a perfluoroether rubber polymer, 1-5 parts of an additive, 10-30 parts of a filler, 1-3 parts of a cross-linking agent, 1-4 parts of an accelerant, 1-3 parts of a processing aid and 1-3 parts of an acid acceptor. The perfluoroether rubber polymer is prepared through a two-step polymerization method, and then the perfluoroether rubber polymer and all the mixed auxiliary materials are mixed and mixed to prepare the low-temperature-resistant perfluoroether rubber. The perfluoroether rubber provided by the invention not only has relatively high hardness, tensile strength, extrusion deformation resistance, shearing resistance and low temperature resistance, can meet the use requirement of the perfluoroether rubber at-40 DEG C, but also has excellent plasma etching resistance, and can be applied to the semiconductor industry.

The invention relates to the technical field of epoxy resin, and discloses polytetrahydrofuran-nanocellulose toughened and reinforced epoxy resin, nanocellulose has a high length-diameter ratio and can play a stress transfer role in an epoxy resin matrix, and a polytetrahydrofuran molecular chain is introduced, so that the polarity of the nanocellulose is improved, and the toughness of the epoxy resin is improved. Compared with the prior art, the nano-crystalline cellulose has the same chain segment as carboxyl-terminated polytetrahydrofuran participating in curing, so that the nano-crystalline cellulose has better compatibility and can form good dispersity in a matrix, and an active carboxylic acid methyl ester group is introduced to a molecular chain of polytetrahydrofuran, so that the molecular chain of polytetrahydrofuran is introduced to the surface of the nano-crystalline cellulose, and the nano-crystalline cellulose is prepared. A polytetrahydrofuran molecular chain contains a flexible chain segment, so that the polytetrahydrofuran has a very good toughening effect, the rigidity of the epoxy resin is reduced, and the epoxy resin has more excellent mechanical properties under the synergistic toughening action of the nanocellulose and the polytetrahydrofuran.

The invention discloses a high-performance environment-friendly UV (ultraviolet) adhesive for batteries and a preparation method thereof, and the UV adhesive is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate prepolymer, 30-70 parts of first acrylate monomer, 1-10 parts of photoinitiator, 5-15 parts of thixotropic agent and 0.5-5 parts of other auxiliaries, the acrylate prepolymer is prepared from the following raw materials: compound polyol, isocyanate and a second acrylate monomer; the compound polyol comprises a flexible polyol and a hard polyol which are compounded according to a molar ratio of 1: (1-5). According to the high-performance environment-friendly UV adhesive for the battery, the viscosity is smaller than 5000 cps, Tg is larger than or equal to 70 DEG C, the elongation at break is larger than or equal to 550%, the shear strength is larger than or equal to 5 MPa, and the resistivity is larger than or equal to 109 omega.m. The UV adhesive disclosed by the invention has the characteristics of low viscosity, high thixotropy, convenience in sizing, short curing time, good flexibility of cured adhesive, high bonding strength and excellent heat resistance and insulating property.

The invention belongs to the technical field of glass fiber surface treatment, and particularly relates to a glass fiber impregnating compound and a preparation method thereof. The glass fiber impregnating compound is prepared from the following components in percentage by mass: 2 to 5 weight percent of a coupling agent, 0.05 to 1 weight percent of a lubricating agent, 2 to 10 weight percent of a film-forming agent A, 7 to 15 weight percent of a film-forming agent B, 0.1 to 0.7 weight percent of a film-forming auxiliary agent, 0.5 to 5 weight percent of an interface dispersing agent, 0.5 to 6 weight percent of a wetting agent and the balance of water, wherein the coalescing agent is polyaspartic acid ester. The impregnating compound solves the problem of poor film forming uniformity when long glass fibers are infiltrated by the existing impregnating compound.

The utility model discloses a flexible heat pipe and a heat dissipation device. The flexible heat pipe comprises a shell, the shell comprises an evaporation section shell, a heat insulation section shell and a condensation section shell which are sequentially connected, and the heat insulation section shell has flexibility; the first capillary structure layer is arranged in the inner cavity of the shell, the first capillary structure layer has flexibility, the first capillary structure layer is provided with a plurality of bent parts which are connected end to end, and the bent parts are located in the heat insulation section shell; the second capillary structure layer is arranged on the inner wall of the evaporation section shell, and the second capillary structure layer covers at least part of the inner wall of the evaporation section shell; the third capillary structure layer is arranged on the inner wall of the condensation section shell, and the third capillary structure layer covers at least part of the inner wall of the condensation section shell; the two ends of the first capillary structure layer are connected to the second capillary structure layer and the third capillary structure layer respectively. According to the heat dissipation device, the eccentricity condition of the device can be reduced, the bending resistance of the flexible heat pipe is good, and the reliability of the device is improved.

The invention discloses a main shaft system of a wind driven generator, which relates to the technical field of wind power generation, and comprises a fixed shaft, a rotating shaft and two bearings, the rotating shaft sleeves the outer side of a shaft main body part of the fixed shaft, the rotating shaft is sleeved with a disc I and a disc II, and a reinforcing rib I is arranged between the disc I and the disc II; an inner concave structure is arranged at the transition position of the shaft main body part and the disc flange part of the fixed shaft, a transition ring is arranged in the inner concave structure, the transition ring axially extends to the bearing outside the inner concave structure, the transition ring is in interference fit with the bearing, the outer circular surface of the transition ring is in interference fit with the rotating shaft, and the inner circular surface of the transition ring is in clearance fit with the fixed shaft. The rotating shaft sleeves the outer side of the shaft main body part of the fixed shaft, so that the bearing capacity is higher; the rotating shaft adopts a double-disc shared reinforcing rib structure, so that the shaft system structure is relatively high in integral rigidity, simple in structure, light in weight and good in economical efficiency; and the transition ring is arranged at the concave structure, so that the stress concentration coefficient of the fixed shaft is greatly reduced on the basis of meeting the structural use requirement, and the use requirement of a large MW-level unit is met.

The invention discloses an exhaust device of a vehicle and the vehicle, and relates to the technical field of automobile accessories, the exhaust device of the vehicle comprises an exhaust pipe, a mounting bracket and a connecting mechanism, the mounting bracket is fixedly connected with the exhaust pipe, the connecting mechanism comprises a connecting rod and an elastic piece, one end of the connecting rod is provided with a limiting flange part, and the connecting rod penetrates through the mounting bracket; the connecting rod is used for being fixedly connected with a structural part of a vehicle, the mounting support can move in the radial direction and the axial direction of the connecting rod, and the elastic piece is located between the limiting flange part and the mounting support and compressed between the limiting flange part and the mounting support. According to the exhaust device of the vehicle, the force borne by the connecting position of the structural part and the connecting mechanism can be reduced, the cracking and even cracking risk of the structural part can be reduced, the service life of the structural part can be prolonged, and the connecting safety of the exhaust pipe and the structural part can be improved.

The clamp for enhancing the turning rigidity of the cage type part comprises a chuck, one side of the chuck is fixedly connected with a positioning check block, the side, away from the chuck, of the positioning check block is fixedly connected with a limiting block, and a base plate is arranged on one side of the chuck and located on the outer side of the positioning check block in a sliding mode. The side, away from the chuck, of the base plate is provided with a clamping jaw, and the surface of the clamping jaw is in threaded connection with a bolt. According to the clamp for enhancing the turning rigidity of the cage type part, the positioning check blocks and the clamping jaws are adopted for positioning and clamping the workpiece in the axial direction and the radial direction at the same time in the new clamping process, in the clamping process, the workpiece is automatically corrected, it is guaranteed that the two ends of the workpiece are concentric, meanwhile, the clamping positions of the clamping jaws are very close to threads, and the cutting rigidity during thread turning is guaranteed; therefore, the problem of tool vibration during thread turning is effectively avoided, the qualified rate of products is increased, and tool loss is reduced.

The invention relates to the technical field of honeycomb ceramics, in particular to a thickness control material, a preparation method, application and silicon carbide honeycomb ceramics. The thickness control material comprises the following components: silicon carbide powder, hydroxypropyl methyl cellulose, redispersible latex powder, inorganic sol, water and a lubricant, the silicon carbide powder comprises coarse-grained powder and fine-grained powder, the granularity D50 of the coarse-grained powder is 20-30 [mu] m, and the granularity D50 of the fine-grained powder is 1-2 [mu] m. The thickness control material can be used for preparing silicon carbide honeycomb ceramics. The thickness-controlled pug has proper rigidity and good thickness consistency, the heat conductivity coefficient of the thickness-controlled pug is closer to that of a silicon carbide honeycomb ceramic unit block, and the heat shock resistance of silicon carbide honeycomb ceramic can be excellent; the silicon carbide honeycomb ceramic is good in splicing mud thickness control effect, stable in back pressure and good in thermal shock resistance.

This utility model provides a car seat with a novel support structure, belonging to the field of car seat technology. It includes: a support frame, a connecting component, a base, and a seat back. The support frame is provided with a sliding groove, the connecting component includes a connecting rod and at least two connecting parts, and the base is provided with a connecting groove. The seat back is connected to the connecting parts and can move relative to the support frame as the connecting parts slide along the sliding groove. Compared with the traditional steel pipe structure, the new support frame has been optimized in terms of material selection and structural design, resulting in a significant reduction in overall weight, making the seat easier to move and adjust. At the same time, the sliding groove design on the support frame allows users to adjust the position of the seat back according to their personal sitting posture habits.

The utility model belongs to the technical field of optical cable manufacturing, and discloses an indoor flexible optical cable, which comprises an optical fiber unit, a high-temperature-resistant layer, an outer protective layer and a fireproof layer, the periphery of the optical fiber unit is coated with the high-temperature-resistant layer, the periphery of the high-temperature-resistant layer is coated with the outer protective layer, the outer protective layer is provided with a spiral notch, and the periphery of the outer protective layer is coated with the fireproof layer. According to the indoor flexible optical cable, the spiral notch is formed in the outer protective layer, so that the rigidity of the outer protective layer can be effectively reduced, the indoor flexible optical cable can be more flexible when being bent, the indoor flexible optical cable cannot be damaged when being wired in a complex indoor environment and at corners, the signal transmission speed and accuracy of the indoor flexible optical cable are ensured, and the indoor flexible optical cable is more flexible. The arrangement of the spiral notch can also disperse the stress on the outer protective layer when the indoor flexible optical cable is bent, improves the bending resistance of the indoor flexible optical cable, achieves the repeated use of the indoor flexible optical cable, and prolongs the service life of the indoor flexible optical cable.

The present application relates to the field of organic solar cells, and provides a kind of full asymmetric small molecule donor SMD-Asy and its preparation method and application.The SMD-Asy is connected by Stille coupling from asymmetrically substituted conjugated BDTT core and acceptor unit, and the side chain and main chain structure are all asymmetrically distributed.The preparation of the small molecule donor includes: constructing thiophene and benzo dithiophene diketone BDTT intermediate, introducing long-chain alkoxy side chain under phase transfer catalysis condition, obtaining tin precursor by low-temperature lithiation, and then coupling with halogenated acceptor unit to obtain target molecule.Due to the simultaneous asymmetric design of main chain-side chain, SMD-Asy can regulate the phase separation scale and chain conformation of blended film as the third component in PM6:Y6 system, thereby improving the hole / electron transport balance and mechanical ductility, so that the device can ensure high photovoltaic performance while improving the cracking strain rate.The small molecule donor of the present application is suitable for flexible and stretchable organic solar devices.

The invention provides a preparation method of an acrylate copolymer, and belongs to the technical field of high polymer materials, and the preparation method comprises the following steps: step S1, preparation of thiol modified acrylonitrile: adding acrylonitrile and o-aminobenzenethiol into a solvent, then adding azodiisobutyronitrile, in a nitrogen environment, heating, stirring, settling and washing to obtain thiol modified acrylonitrile; drying to obtain mercaptan modified acrylonitrile; step S2, preparation of an acrylate copolymer: adding water and a first emulsifier into a reaction kettle, heating and stirring, adding styrene and a first initiator, then adding methyl methacrylate, butyl acrylate, a second emulsifier and a second initiator, keeping the temperature unchanged, and continuing stirring to obtain the acrylate copolymer; and finally adding mercaptan modified acrylonitrile, a third emulsifier and a third initiator, continuously stirring to obtain an acrylic copolymer emulsion, and carrying out spray drying to obtain the acrylate copolymer. According to the invention, balance of hardness and toughness of the copolymer and improvement of thermal stability and aging resistance are realized.

The utility model relates to a finger application, which comprises a sticking part, a pattern part, an adjusting part and a fixing part, the upper surface of the sticking part is provided with a medicine layer and a first adhesive tape, the sticking part is connected with the pattern part, the fixing part is provided with a bonding layer and a fixing layer, and the peripheral part of the lower surface of the bonding layer is fixedly bonded with the fixing layer. A cavity is formed between the middle part of the lower surface of the bonding layer and the fixing layer, an opening is formed in one end of the cavity, one end of the adjusting part is fixedly connected to the bottom end of the bonding part, and the other end of the adjusting part is clamped and connected into the cavity. By means of the structure, the problems that in existing clinical work, after a child patient finger trauma is bound with breathable sterile gauze, an adhesive tape is wound or a plastic fingerstall is arranged outside, the appearance is bloated and inconvenient, and loosening and slipping are prone to occurring are solved.

The invention belongs to the technical field of melamine-based foam materials, and particularly discloses a melamine resin prepolymer modifier and a preparation method of hot-pressed non-rebound low-formaldehyde melamine-based foam. The preparation method comprises the following steps: firstly, carrying out polycondensation dehydration on a catalyst, diglycolamine and melamine to prepare a modifier; the preparation method comprises the following steps: controlling the feeding ratio of melamine to formaldehyde, adding sodium pyrosulfite, regulating and controlling the pH value of a reaction solution, preparing a resin prepolymer by adopting a constant-temperature reaction, adding a modifier before a reaction endpoint, continuing the reaction to the endpoint, and then adding a high-temperature formaldehyde catching agent; and then emulsifying with a functional auxiliary agent at a high speed, foaming by combining microwave gradient foaming and thermal radiation to obtain a primary foam product, and curing the foam by combining microwaves and wet and hot steam to obtain the product. The product has excellent flame retardance, weather resistance, sound absorption, mildew resistance, corrosion resistance, workability and the like, and can be applied to the fields of sound insulation, heat preservation, shock prevention, fire prevention, decoration filling, cleaning and the like.

The invention discloses a clamping method for processing a rocker arm swash plate on a dual-spindle chuck turning and milling compound machine tool, comprising the following steps: the first step is to manufacture a mold-type soft jaw according to the shape structure of the rocker arm swash plate; the second step is to install two mold-type soft jaws on a two-jaw chuck, and use the two-jaw chuck to drive the mold-type soft jaws to clamp the rocker arm swash plate blank; the third step is to process a limiting threaded hole on the side of the mold-type soft jaw, and use a limiting screw to realize the positioning of the rocker arm swash plate blank in the direction of the ear shaft hole; the fourth step is to process the corresponding position of the rocker arm swash plate blank to obtain a semi-finished rocker arm swash plate machined part; the fifth step is to manufacture a post-processing fixture according to the structure of the semi-finished rocker arm swash plate machined part; the sixth step is to use the post-processing fixture to position and clamp the semi-finished rocker arm swash plate machined part, and then process the semi-finished rocker arm swash plate machined part to obtain a finished rocker arm swash plate. The invention has the characteristics of being able to effectively improve the rigidity of the product and stabilize the processing quality.

The utility model discloses a state monitoring assembly for a wire harness, and relates to the technical field of wire harness monitoring equipment, the state monitoring assembly comprises a monitor main body and a data line, the data line is provided with a protective sleeve, the data line comprises a joint and a lead, the protective sleeve comprises an inner-layer soft sleeve, a top fixing lantern ring and a bottom fixing lantern ring, the inner-layer soft sleeve is detachably installed on the joint, and the top fixing lantern ring is detachably installed on the lead. The inner-layer soft sleeve comprises a top plate, a base and a connecting column, the top fixing lantern ring is movably installed at the top of the inner-layer soft sleeve, the bottom fixing lantern ring is movably installed at the bottom of the inner-layer soft sleeve, a fan-shaped notch matched with a wire is formed in the side face of the protective sleeve, and the protective sleeve is arranged on the wire in a sleeving mode through the fan-shaped notch. The data line connector has the advantages of being convenient to assemble and disassemble, enhancing the protection performance and prolonging the service life, and solves the problems that a traditional data line connector is easy to damage and high in maintenance cost.

The angle cleaner comprises a shell and a tool bit, the tool bit is a cuboid, a triangular pyramid-shaped first groove body is formed in the top end of the tool bit, an L-shaped second groove body is formed in the lower end of the tool bit, a mounting groove corresponding to the tool bit is formed in the shell, the tool bit is connected to the shell in a telescopic mode, and the four faces of the upper end of the tool bit abut against the four walls in the mounting groove respectively. A spring is arranged between the first groove body and the top in the shell, the lower end of the tool bit extends out of the bottom of the shell, an opening corresponding to the lower end of the tool bit is formed in the bottom of the shell, a limiting part corresponding to the second groove body is arranged at the opening, and the top wall of the second groove body abuts against the limiting part to limit the stroke of the tool bit. The inner angle of the fixing groove can be cleaned quickly and conveniently, the arc-shaped angle of the fixing groove is processed to be a right angle, and the edge of a lock or a hinge is completely attached to the fixing groove.

The invention discloses a temperature response type printed color-changing fabric and a preparation method thereof.The temperature response type printed color-changing fabric is prepared from polyester fiber base cloth and temperature-sensitive dye, and the temperature-sensitive dye is prepared from, by weight, 3-8 parts of microcapsule type thermochromic dye, 40-50 parts of organic silicon modified epoxy resin adhesive and 1-3 parts of thickening agent; the component A comprises the following components in parts by weight: 2-4 parts of a curing agent, 0.5-1.5 parts of a dispersing agent, 2-4 parts of a toughening agent and 1-2 parts of nano silicon dioxide, and the toughening agent comprises aminopropyl terminated polydimethylsiloxane and epoxy modified polydimethylsiloxane; the temperature response type printed color-changing fabric prepared by the method has excellent wear resistance and durability.

The present invention relates to an automatic disassembly device for waste lead-acid batteries, comprising: a cutting unit, a pushing unit and a shell breaking unit; the cutting unit is located above the pushing unit, and the cutting unit is mainly used for cutting the upper and lower covers of the battery. After the cutting is completed, the battery will fall into the pushing unit through the material drop opening, and the pushing unit will push out the electrode plates in the battery in sequence. When all the electrode plates are pushed out, the battery shell will be pushed to the shell breaking unit, and then the battery shell will be broken into pieces by the shell breaking unit. After adopting the above structure, the beneficial effects are: first, the device structure is simple and compact, and fully automated; second, the motion accuracy requirements of the moving parts are reduced, and the reliability of the device is improved; finally, the material positioning is simple and accurate, which can speed up the production rhythm and improve production efficiency.

The application belongs to the technical field of modified functional fibers, and particularly relates to a manufacturing method of high-bulkiness special-shaped hollow fibers. The low-crystalline polyester chip is obtained by modifying the polyester, and the functional components such as graphite and tourmaline are introduced, and the high-bulkiness special-shaped hollow fibers are prepared by using a special-shaped spinneret to melt and spin, so that the hollow degree and bulkiness of the fibers are effectively improved, good breaking strength is obtained, and the oxygen index is effectively increased.

The utility model provides a water nozzle riveting welding structure of a liquid cooling plate. The water nozzle riveting and welding structure of the liquid cooling plate comprises a liquid cooling flat plate, a water nozzle and an expansion cone, a riveting welded junction is formed in the liquid cooling flat plate; an annular riveting boss is arranged on the end face of a water passing port of the water nozzle in a protruding mode, and a knocking part is arranged at the end, away from the annular riveting boss, of the water nozzle. A water passing port of the water nozzle is riveted to the riveting welded junction through the annular riveting boss; the expanding cone is arranged on the side, away from the water nozzle, of the riveting welded junction. The cone head of the expanding cone extends to the inner cavity of the water nozzle through the water passing port of the water nozzle and is opposite to the knocking part; due to the fact that the ratio of the diameter of the inner ring of the annular riveting boss to the diameter of the outer ring of the annular riveting boss is 14: 15, the rigidity of the annular riveting boss is reduced, meanwhile, the flexibility of the annular riveting boss is improved, and abrasion caused by rigid collision is reduced. And meanwhile, the peripheral wall of the cone head of the expanding cone abuts against the annular riveting boss, so that the water nozzle is easier to expand outwards and deform so as to be riveted to the riveting welded junction.

The utility model belongs to the technical field of tires, and relates to a tire. A plurality of circumferential grooves extending in the circumferential direction of the tread divide the pattern structure into a middle pattern rib, a left pattern rib, a left shoulder pattern rib, a right pattern rib and a right shoulder pattern rib; first transverse grooves and second transverse grooves which are arranged at intervals are circumferentially distributed in the middle pattern ribs, five middle transverse cutter grooves which are parallel to one another and have the same inclination angle are formed between the two first transverse grooves, and the inclination angle of each middle transverse cutter groove ranges from 40 degrees to 70 degrees; the first transverse cutter groove is connected with the first transverse groove, the other end of the first transverse cutter groove extends to the circumferential groove, the second transverse cutter groove is formed between the first transverse groove and the second transverse groove and is not connected with the first transverse groove and the second transverse groove, the two ends of the third transverse cutter groove are communicated with the circumferential groove, the two ends of the fourth transverse cutter groove are closed, and the fifth transverse cutter groove is connected with the first transverse groove. And the other end extends to the circumferential groove. According to the utility model, the compatibility of the rigidity of the tread pattern structure of the tire is optimized, so that the dry land performance and the snowfield performance of the tire are both considered.

The utility model provides a coating painting device for indoor decoration, and belongs to the technical field of indoor decoration. Comprising a base, a water tank and a water pump are sequentially and fixedly connected to the top of the base from left to right, fixing seats are fixedly connected to the two sides of the end, away from the water tank, of the bottom of the base, rotating seats are rotationally connected to the sides, close to each other, of the two fixing seats, and inserting grooves are formed in the rotating seats; and a roller is slidably connected into the inserting groove. By arranging the rotating seat and the clamping component, the device can be used for inserting and mounting the roller through the inserting groove, and the roller is fixed through the clamping component, so that the roller can be quickly disassembled and assembled, and when the roller needs to be cleaned and replaced, the work can be quickly completed, and the working efficiency is improved; and when the device is moved to a working area, the roller can be detached, pollution to the roller is reduced when the device is transported, the service life of the roller is prolonged, and the practicability of the device is improved.

The application provides a double-nut type high-temperature exhaust pipeline sliding support and locking method, and belongs to the technical field of sliding supports. The sliding support comprises a sliding support assembly, a sliding groove, a fixing assembly, a limiting assembly and an elastic assembly. The sliding groove is arranged on the sliding support assembly. The fixing assembly is detachably arranged on the sliding groove. The fixing assembly comprises a bolt, a steel gasket, a first nut and a second nut. The steel gasket, the first nut and the second nut are movably arranged on the bolt in sequence along the axial direction of the bolt. When the pipeline is slightly shaken due to the self weight and ship vibration, the sliding support remains in a stationary state. When the pipeline is axially elongated due to heat, the sliding support can easily realize the sliding function. The double-nut self-locking function can prevent the nut from loosening and falling off. The stress borne by each part is far less than the allowable stress, so that the long-term use of the sliding support assembly can be ensured.

The invention provides a creeping prevention structure of a sliding rail retainer. The creeping prevention structure comprises a first sliding rail, a second sliding rail and the retainer, the first sliding rail and the second sliding rail extend along a movement direction, a first opposite side of the first sliding rail is opposite to a second opposite side of the second sliding rail, and the first opposite side and the second opposite side are concavely provided with a first rail surface and a second rail surface; the retainer extends along the movement direction and is provided with a plurality of rolling bodies, and the rolling bodies roll on the first rail surface and the second rail surface, so that the retainer, the first sliding rail and the second sliding rail move relative to each other. The retainer is pivoted with a tooth-shaped wheel, a plurality of first and second bulges are fixedly arranged on the first and second opposite sides outside the first and second track surfaces at intervals, the first and second bulges are positioned on the opposite sides of the tooth-shaped wheel on the circumference, and the tooth-shaped wheel is meshed with the first and second bulges; and the retainer is prevented from creeping on the first sliding rail and the second sliding rail.

The invention relates to the technical field of fiber fabric processing, in particular to a fiber fabric antibiosis and deodorization treatment device which comprises a pretreatment part and a soaking pool which are arranged side by side, a power traction mechanism arranged on the pretreatment part and the soaking pool, and a re-softening mechanism arranged on the side face of the soaking pool and the power traction mechanism. The device comprises a soaking tank, a pre-processing part connected to the tail part of the soaking tank, a pushing and stirring mechanism obliquely arranged and extending into the soaking tank, and a weighting part connected to the tail part of the pre-processing part, and under the combined action of a power traction mechanism and the weighting part, the fiber fabric can be sufficiently and obliquely stretched in the soaking tank, so that the condition of stacking of the fabric is effectively avoided; all the parts can be fully combined with the antibacterial deodorant, so that the antibacterial deodorant on the treated fabric is prevented from being distributed unevenly, and the antibacterial deodorant treatment quality is ensured.

The invention belongs to the technical field of organic thin film packaging, and particularly relates to light-curable low-dielectric ink for packaging, a packaging layer and a preparation method of the light-curable low-dielectric ink. Comprising 60%-85% of a fluorine-containing bifunctional monomer, 10%-30% of a monofunctional monomer containing a silyl ether structure, 1%-5% of a bifunctional monomer containing a POSS (Polyhedral Oligomeric Silsesquioxane) structure, 0.1%-6% of a photoinitiator and 0.1%-5% of a photosensitizer. The light-curable low-dielectric ink effectively reduces the dielectric constant of an organic layer and improves the light transmittance and tensile strength, and a packaging layer prepared from the light-curable low-dielectric ink is high in flatness, low in dielectric constant, high in light transmittance and high in tensile strength.

This invention discloses a positioning stent for convenient fixation and safe removal within human blood vessels, relating to the field of surgical medical device technology. The positioning stent comprises: a metal wire stent with multiple pointed positioning spikes, each spike including an inner metal wire and a covering layer; the inner metal wire is connected to the metal wire of the metal wire stent, the diameter of the inner metal wire being smaller than the diameter of the metal wire of the metal wire stent; the covering layer is conical and made of a biodegradable material; the tips of the inner metal wires and the tips of the covering layer are spaced a predetermined distance apart, and the middle portion of the inner metal wire forms a spiral portion; after the covering layer degrades, the spiral portion changes from a compressed state to an extended state, allowing the inner metal wire to pierce the blood vessel wall, with a predetermined gap between the blood vessel wall surface and the surface of the metal wire stent. This invention achieves reliable stent fixation and safe removal.