1452results about How to "Improve ductility" patented technology

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention relates to the technical field of sole production, in particular to a film covering integrated forming machine suitable for popcorn soles and a sole forming process. The equipment comprises a pressing assembly, a die, a steam generator, a positive and negative pressure generator, a stock bin and a film conveying device, the die comprises a female die and a male die, the female die is provided with a cavity and an air pressure cavity, a first air hole is formed in the cavity, the female die is provided with a cutting groove formed around the cavity by a circle, the male die is provided with an embedded block, and a second air hole is formed in the male die; the film conveying device comprises an output roller and a recycling roller, and a film material output by the film material roll penetrates through the space between the female die and the male die and then reaches the recycling roller to be wound and recycled. The effect of eliminating dark fringes is achieved by covering the bottom face and the side face of the popcorn shoe body blank with the film materials, the film covering procedure is synchronously completed in the popcorn shoe sole forming process, the material transferring step is omitted, full-process automatic operation can be achieved, and the labor cost is low.

The invention discloses a biodegradable paper-plastic composite material and a preparation method thereof. The biodegradable paper-plastic composite material is prepared from the following components in parts by mass: 70-90 parts of poly (butylene adipate-co-terephthalate), 10-30 parts of carbon dioxide-based polyester-polycarbonate and 0.2-0.5 part of a processing aid. Polybutylene adipate terephthalate (PBAT) not only has better mechanical properties, but also has higher ductility and elongation at break, but has the defects of low modulus, easiness in curl deformation, higher melt viscosity, easiness in adhesion to equipment and poor barrier property. PPCP belongs to an amorphous polymer, is high in tensile strength and excellent in barrier property, but is low in elongation at break (-5%), is a brittle polymer and is poor in melt strength, and the higher the temperature is, the poorer the melt strength is. Therefore, the PPCP is ingeniously used for modifying the PBAT blown film, the obtained film combines the properties of the two plastics, the good ductility and elongation at break are kept, the modulus of the film is also improved, and meanwhile, the melt strength is also easy to process.

The invention provides an ultrahigh-ductility cement-based composite material for ocean engineering and a preparation method of the ultrahigh-ductility cement-based composite material for ocean engineering. The concrete is prepared from the following raw materials in parts by weight: 250 to 500 parts of cement clinker, 400 to 600 parts of fly ash, 200 to 300 parts of mineral powder, 100 to 150 parts of silica fume, 160 to 240 parts of metakaolin, 600 to 900 parts of quartz sand, 10 to 20 parts of organic synthetic fiber, 20 to 30 parts of organic corrosion inhibitor, 180 to 240 parts of water and 1 to 8 parts of water reducing agent. The organic corrosion inhibitor provided by the invention can be combined with chloride ions to form a passive film, so that the corrosion of reinforcing steel bars and the invasion of the chloride ions into concrete are inhibited, and the durability of the concrete is improved; by regulating and controlling the mixing ratio of the four mineral admixtures and the mixing amount of the synthetic fiber component, the concrete can well consider high strength, high ductility, high durability, high flow state and excellent deformation resistance. The ultrahigh-ductility concrete for ocean engineering, which can meet the toughness requirements of high compression resistance, fracture resistance and impact resistance and the requirements of high chloride ion permeation resistance and steel bar corrosion resistance, can be obtained.

The invention relates to the technical field of high polymer materials, and provides impact-resistant polystyrene and a preparation method thereof. The impact-resistant polystyrene comprises the following raw materials in parts by weight: 70-80 parts of polystyrene, 10-15 parts of styrene butadiene rubber, 10-20 parts of wood fiber, 1-2 parts of an antioxidant, 2-3 parts of a lubricant and 0.5-1 part of a vulcanizing agent. The styrene-butadiene rubber is composed of first styrene-butadiene rubber and second styrene-butadiene rubber which have different styrene mass contents. According to the technical scheme, the problem of poor impact resistance of polystyrene in related technologies is solved.

The invention relates to the technical field of solid electrolyte, in particular to normal-temperature surface modified flexible oxide solid electrolyte and a preparation method and application thereof. The normal-temperature surface-modified flexible oxide solid electrolyte is prepared from the following raw materials: a monomer, polyethylene oxide, a solvent, an initiator, a modified oxide ceramic electrolyte and electrolyte salt, wherein the mass of the monomer is 1-10% of the total mass of the components; the molar ratio of the initiator to the monomer is 0.01%-0.1%; the molar ratio of the electrolyte salt to the monomer is 1: (6-12); the mass ratio of the electrolyte salt to the modified oxide ceramic electrolyte is 1: (2.5-5). The flexible oxide solid electrolyte has high conductivity, wide temperature tolerance range and high structural stability, and when the flexible oxide solid electrolyte is applied to an all-solid-state lithium metal battery, the ionic conductivity, safety and cycle performance of the battery are improved.

The invention belongs to the technical field of environment-friendly materials, and mainly relates to a high-strength express bag which comprises a polylactic acid material, a poly (butylene succinate) material, a fiber material and an additive, the mass percent of the polylactic acid material is X, and the unit is%; the mass percentage of the poly (butylene succinate) material is Y, and the unit is%; wherein X + Y = 70; considering that an existing degradable express bag does not have relatively high tensile strength, by adjusting the ratio of the polylactic acid material to the poly (butylene succinate) material, the performance of the express bag in the aspects of tensile strength, tear resistance, thickness, degradation time and the like is optimized, and the optimal effect is achieved; in addition, the precise proportion of natural fibers and specific additives is also fused, so that the comprehensive performance of the express bag is further improved; furthermore, the invention further discloses a preparation method of the high-strength express bag, and the performance of the express bag is further improved.

The invention discloses an electronic bidding transaction platform supervision system, and belongs to the technical field of transaction supervision. The method and the device are used for solving the technical problems of poor active supervision analysis effect and poor active management optimization effect of bidding types in different abnormal states in an existing scheme. The method comprises the steps of performing monitoring statistics and processing combination on different types of electronic bidding and tendering in a target area from different dimensions, performing data processing calculation on review data of different dimensions of the bidding and tendering types to obtain corresponding local processing degrees, and performing data analysis on the local processing degrees to obtain local processing abnormal states corresponding to the bidding and tendering types to which the local processing degrees belong. And performing tracing analysis on the bidding type in the local processing abnormal state to obtain a corresponding implementation adjustment identifier, and dynamically adjusting an examination mode corresponding to the bidding type according to the implementation adjustment identifier, so that subsequent examination of the bidding type in the local processing abnormal state can perform the same supervision standard and execution strength.

The invention discloses a recycled concrete interlayer-corrugated steel plate composite shear wall with recoverable functions. The anti-seismic property of the steel plate-concrete composite shear wall can be improved, but the steel plate-concrete composite shear wall is prone to local buckling or large deformation under the action of large horizontal loads. Frame columns are vertically arranged on a foundation; shear walls are arranged between the frame columns; a self-resetting device and a friction energy consumption device are arranged between the bottom of the shear wall and the foundation; the self-resetting devices are arranged at the bottom of the shear wall and on the two sides of the friction energy dissipation device. The foundation and the frame columns are fixed through column foot connecting pieces, and a lower end plate is arranged in the center of the foundation. Energy is dissipated through deformation of the disc spring, self-resetting is achieved through the self-resetting device after an earthquake, and residual deformation after the earthquake can be reduced; the energy dissipation beam section generates shear deformation due to the displacement difference between the shear wall and the frame column, the beam section dissipates energy through friction and pulls the SMA stranded wires to deform, and structural deformation is restored through elastic restoring force of the SMA stranded wires after an earthquake.

The preparation process comprises the following steps: dissolving ammonium dimolybdate, ammonium rhenate and water at a high temperature, then adding zirconium hydroxide, uniformly mixing, carrying out vacuum drying, carrying out two-stage hydrogen reduction on the obtained precursor composite powder, and carrying out vacuum drying to obtain the zirconium dioxide reinforced phase-containing molybdenum-rhenium alloy capable of inhibiting abnormal growth of crystal grains, thereby obtaining the zirconium dioxide reinforced phase-containing molybdenum-rhenium alloy capable of inhibiting abnormal growth of crystal grains. Zirconium oxide reinforced molybdenum-rhenium composite powder obtained after reduction is subjected to cold isostatic pressing, pressureless sintering and hot isostatic pressing to obtain zirconium oxide reinforced molybdenum-rhenium alloy, and then the zirconium oxide reinforced molybdenum-rhenium alloy is obtained through high-temperature rolling and recrystallization annealing treatment. According to the method, atomic-level mixing of molybdenum and rhenium is achieved through liquid-phase doping, the microstructure of the molybdenum-rhenium alloy is more uniform and fine due to addition of ZrO2, the recrystallization temperature is increased, and the phenomenon that sintered grains of the molybdenum-rhenium alloy grow abnormally is relieved. And by optimizing the annealing process and regulating and controlling the annealing mode, grains are rearranged to form a more uniform microstructure, abnormal growth of the grains is further inhibited, and the high-temperature tensile strength and the ductility of the molybdenum-rhenium alloy are improved.

A ferrite-austenite duplex stainless steel material having a composition containing, by mass, 0.001 to 0.050% of C, 0.01 to 0.50% of Si, 1.0 to 4.5% of Mn, 0.050% or less of P, 0.030% or less of S, 1.5 to 3.5% of Ni, 19.6 to 24.0% of Cr, 0.01 to 1.00% of Mo, 0.01 to 1.20% of Cu, 0.010 to 0.090% of N, less than 0.130% of C + N, and the balance of Fe and impurities. The ferrite-austenite duplex stainless steel material has a metal structure in which the value of Md represented by formula (1) is 50.0-150.0 DEG C and the austenite phase is 25-49 vol%. In addition, the value of Md, which is represented by formula (1), of the austenite phase is 35.0-100.0 DEG C. Md = 551-462 (C + N)-9.2 Si-8.1 Mn-29 (Ni + Cu)-13.7 Cr-18.5 Mo (1) In the formula, the element symbols represent the content (mass%) of each element.

The utility model discloses a reinforcing device, which relates to the technical field of structural engineering, and comprises a reinforcing plate, fixed end anchorage devices and a midspan back shore mechanism, the two ends of the reinforcing plate are respectively connected with a reinforced member through the fixed end anchorage devices, the middle part of the reinforcing plate is connected with the reinforced member through the midspan back shore mechanism, and the middle part of the reinforcing plate is connected with the reinforced member through the midspan back shore mechanism. The midspan jacking mechanism is used for conducting prestress tensioning on the reinforcing plate. The reinforcing device is simple in structure, high in operability and capable of improving the ultimate strength and ductility of a reinforced component.

The invention discloses a high-rise concrete module which comprises a bottom plate, a top plate and a pair of side plates, the bottom plate, the top plate and the pair of side plates form a cuboid structure with two open ends, one side plate is a wall shell, and the two ends of the wall shell in the length direction form edge constraint component parts. A staggered connecting structure is arranged at the bottom of the edge restraining component part, a positioning structure corresponding to the staggered connecting structure of an adjacent module is arranged at the top of the edge restraining component part, a plurality of vertical key grooves are formed in the outer side of the wall shell at intervals in the length direction, and connecting pieces are arranged in the vertical key grooves. The invention further discloses a construction method of the high-rise concrete module connecting structure. According to the invention, the connection number of the vertical steel bars is reduced, traditional sleeve grouting connection and corrugated pipe slurry anchor lap joint connection are avoided, the field installation efficiency can be obviously improved, and the engineering quality risk is reduced.

The TS of the steel sheet is at least 1180 MPa, and the steel sheet has high YS and YR, excellent press formability (ductility, hole expandability, and bendability), and fracture resistance characteristics (bending fracture characteristics and axial crushing characteristics) at the time of collision. The base steel sheet has a prescribed component composition, and ferrite, fresh martensite, retained austenite, bainite, tempered bainite, and tempered martensite in the steel structure at a position of 1 / 4 of the sheet thickness of the base steel sheet are set to prescribed ranges. The average crystal grain size of island-like fresh martensite and island-like retained austenite in bainite crystal grains and tempered bainite crystal grains is 2.00 [mu] m or less, and the average crystal grain size of carbides in bainite crystal grains and tempered bainite crystal grains is 500 nm or less. The number density of carbides having a particle size of 300 nm or more in bainite crystal grains and in tempered bainite crystal grains is 3.0 / [mu] m2 or less, and the amount of diffusible hydrogen contained in the base steel sheet is 0.50 ppm by mass or less.

The invention relates to the technical field of fibers, in particular to a PTT / PA eccentric core-sheath composite fiber and a preparation method thereof. The comprehensive performance of the fiber is remarkably improved through eccentric structure design and introduction of an alkyl chain into a PA sheath layer to modify PA. The composite fiber is composed of a PTT core layer and a PA sheath layer, the sheath layer contains alkyl chain modified PA, and the fiber shows excellent breaking strength, curling performance and thermal stability. The eccentric structure effectively disperses stress, brittle fracture is avoided, meanwhile, the alkyl chain modified PA enhances the flexibility and interface bonding force of a molecular chain, and the dimensional stability and thermal stability of the fiber are improved. The invention is suitable for the fields of clothing, home textiles and high-temperature industrial fibers, and meets the requirements of high strength, high elasticity and high-temperature stability.

The utility model discloses a carbon fiber deep-cavity thin-wall box body mould and a forming process thereof, the carbon fiber deep-cavity thin-wall box body mould comprises a bottom mould and a mould sealing plate covered above the bottom mould, a mould cavity is arranged in the bottom mould, a silica gel mould is arranged in the mould cavity, a negative pressure vacuum groove is arranged on the upper end face of the bottom mould along the circumferential direction of the mould cavity, and the mould sealing plate is arranged on the bottom mould. And a compressed air inlet source joint is arranged on the mold sealing plate and is communicated with the inner cavity of the silica gel mold. According to the scheme, a novel silica gel mold structure design is adopted, and hydraulic pressurization is replaced by pneumatic pressurization, so that the product percent of pass is increased, and the investment of production equipment is reduced; the silica gel mold has good elasticity and ductility, is suitable for forming deep-cavity thin-wall products in different shapes, and is convenient to demold after the products are formed.

The invention relates to the field of MOF-based flexible thermoelectric materials, and discloses n-type MOF-based high-performance thermoelectric foam with ductility and a preparation method and application thereof, and the method comprises the following steps: dissolving 1, 3, 5-trimesic acid and copper acetate in a mixed solution of N, N-dimethylformamide, ethanol and deionized water to prepare a precursor solution; soaking foamed nickel in the precursor solution for hydrothermal reaction, then taking out, cleaning and drying to obtain a foamed nickel material with nickel-copper MOF uniformly grown on the surface; and soaking the foamed nickel material in a mixed solution of polyaniline and DMF (Dimethyl Formamide) so as to graft a conductive polymer on the surface and pore channels of the nickel-copper MOF, thereby obtaining the high-performance thermoelectric foam with ductility. The n-type MOF-based thermoelectric foam prepared by the invention has excellent ductility and thermoelectric performance, and also has the characteristics of metal plasticity, efficient thermoelectric performance and sensitivity to temperature change. The excellent thermoelectric performance and wide application scene of the material are far better than those of the currently reported n-type MOF-based thermoelectric material.

The invention belongs to the technical field of aviation static disc materials, and aims to solve the problem that the application of an existing copper-based static disc material in an aviation brake system is limited due to the fact that the comprehensive performance of the existing copper-based static disc material is weak. In order to achieve the purpose, the invention provides the aviation copper-based static disc material and the preparation method thereof. The aviation copper-based static disc material comprises, by mass, 55%-65% of high-purity electrolytic copper, 10%-15% of aluminum bronze alloy, 4%-8% of nano nickel powder, 2%-5% of chromium molybdenum alloy, 2%-6% of nano silicon carbide particles, 1.5%-4% of continuous carbon fiber bundles, 1%-3% of hexagonal boron nitride nanosheets, 0.5%-2% of tungsten carbide particles, 0.5%-2% of multilayer graphene, 0.3%-1.5% of sodium molybdate, 0.5%-1.5% of a coupling agent, 0.2%-1% of a nano lubricant and 0.1%-0.8% of an antioxidant. The comprehensive properties such as strength, hardness, high-temperature wear resistance, friction coefficient stability and corrosion resistance of the aviation copper-based static disc material are remarkably improved, the requirements of an aviation brake system are met, and the aviation copper-based static disc material is particularly suitable for being applied under complex working conditions.

The invention relates to the technical field of ablation, in particular to a flexible electrode pulse ablation catheter, a pulse ablation device and ablation equipment.The ablation catheter comprises a catheter body with a far end and a near end which are oppositely arranged, and the catheter body comprises a traction structure and a conveying pipe assembly arranged on the traction structure in a sleeving mode; the electrode assembly comprises at least one connecting pipe and at least two electrodes, every two adjacent electrodes are fixedly connected through the corresponding connecting pipe, and each electrode is of a tubular structure internally provided with a cavity; one end of the traction structure penetrates through the conveying pipe assembly, then extends into the electrode assembly and is fixedly connected with one end of an electrode arranged close to the far end of the pipe body. Under the action of external force, the traction structure can drive the two opposite ends of the same electrode to move oppositely or move away from the tubular structure until the tubular structure shrinks or expands. The flexible degree of the electrode assembly can be improved, the electrode with a larger area can be attached to the focus, conveying and ablation at the large-angle position of the periphery of the focus are achieved, the ablation effect is guaranteed, and the ablation success rate is increased.

The invention discloses a manufacturing method of an electromagnetic valve material with high corrosion resistance and easy cutting, which relates to the technical field of stainless steel and mainly comprises the following steps: melting in a heating furnace, AOD (argon oxygen decarburization) refining, LF (ladle furnace) refining, pouring, heat treatment, pretreatment, primary electroplating, secondary electroplating and finished product obtaining. And meanwhile, tin-bismuth alloy with specific content is introduced as a modifier for modification treatment, a slag former is added for refining and slagging-off, and the electromagnetic valve material which is good in corrosion resistance, high in strength and free of cutting is successfully prepared.

The invention discloses a connecting joint for vertical steel bars of a prefabricated panel by adopting UHPFRC (Ultra High Performance Fiber Reinforced Concrete) lap joint, and belongs to the technical field of building structures. The connecting joint comprises a first prefabricated wall panel and a second prefabricated wall panel, wherein the first prefabricated wall panel comprises a connecting hole and a first connecting steel bar; the second prefabricated wallboard comprises second connecting steel bars, the first connecting steel bars and the second connecting steel bars are arranged in the connecting holes at intervals, and UHPFRC is poured into the connecting holes. The connecting holes are formed in the horizontal joints of the bottoms or the tops of the prefabricated wall panels, the connecting steel bars are arranged in the connecting holes, the connecting steel bars extending out of the prefabricated wall bodies adjacent to the horizontal joints are in single-row or double-row lap joint in the connecting holes by pouring the UHPFRC, and therefore formworks and sleeves / casing pipes are omitted, and the construction cost is reduced. The construction technology of vertical steel bar connection in the fabricated shear wall is obviously simplified, and the connection cost is reduced.

The invention relates to a paper substrate bio-based high-barrier Pickering emulsion coating and a preparation method and application thereof, and belongs to the technical field of paper coatings, the prepared coating has excellent waterproof and oil-proof performance and is suitable for surface coating of substrates such as paper, the emulsion is prepared by taking glycerol as a plasticizer and chitosan as an oil-proof agent, and the emulsion is prepared by taking the chitosan as an oil-proof agent. The cellulose nanocrystal is used as an emulsifier, and the alkyl ketene dimer AKD and palm wax are used as an oil phase. After the emulsion is coated on the surface of paper, a high-barrier coating with a core-shell structure is formed, and the core-shell structure is clear through electron microscope observation; the hydrophobic angle of the coating can reach 130 degrees to the maximum, and the coating shows remarkable hydrophobicity and oil resistance. The coating is composed of bio-based materials, has the advantages of environmental protection and sustainability, is suitable for application requirements of degradable and green packaging, is simple in preparation process and excellent in performance, and can provide efficient barrier performance for paper packaging materials.

The invention discloses a water-retention and soil-moisture-conservation biodegradable agricultural film with a self-water-absorption structure and a preparation method of the water-retention and soil-moisture-conservation biodegradable agricultural film, and belongs to the technical field of degradable agricultural films. The agricultural film is formed by co-extruding an outer hydrophobic layer, a middle mechanical supporting layer and an inner hydrophilic layer, the outer hydrophobic layer is composed of a hydrophobic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophobic layer master batch is prepared by blending and granulating polylactic acid, hydrophobic layered nanosheets and auxiliaries; the middle mechanical supporting layer is composed of a mechanical supporting layer master batch and polyester in a mass ratio of (5-9): (1-5), and the mechanical supporting layer master batch is prepared by blending and granulating polylactic acid, a bio-based filler and an auxiliary agent; the inner hydrophilic layer is composed of a hydrophilic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophilic layer master batch is prepared by blending and granulating polylactic acid, super-hydrophilic nanoparticles and an auxiliary agent; the prepared agricultural film has water retention, hydrophobic and hydrophilic functions at the same time, has excellent mechanical strength and toughness, and can meet use requirements.

The invention provides a cross-core pull rod composite frame large-span glass curtain wall construction method, belongs to the technical field of glass curtain wall construction, and mainly comprises two links of manufacturing and mounting. In the manufacturing link, the right-angle flat-section rectangular pipe is manufactured by adopting a cold and hot extrusion process, and the required component is obtained through annealing, cold extrusion forming and local hot extrusion treatment. The installation link comprises the following steps: firstly, carrying out construction deepening design on a pull rod system, decomposing a cross-core pull rod into inter-section pull rods, and determining a pre-arching value of the cross beam through simulation analysis; then on-site construction is conducted, and the steps of installation and adjustment of stand columns, hoisting and positioning of large-span cross beams, assembly and connection of internode pull rods, installation and welding of midspan davits and the like are sequentially completed. And finally, a #-shaped tensioning tool is adopted for tensioning the pull rod system, and installation of the glass panel and the decoration system is completed, so that the construction quality and the structural safety of the large-span glass curtain wall system are ensured, and the technical problems that a traditional method excessively depends on artificial experience, and scientific theoretical guidance and accurate control means are lacked are solved.

The utility model relates to the technical field of water heaters, and discloses a pipeline anti-freezing device for an outdoor water heater, which comprises a water heater pipeline, the surface of the water heater pipeline is sleeved with a foam sleeve, the surface of the foam sleeve is sleeved with a heat preservation component, the surface of the heat preservation component is sleeved with a heating pipe, and the surface of the heating pipe is sleeved with a water inlet pipe. A cavity is formed in the inner wall of the heating pipe, an electric heating wire is fixedly arranged in the cavity, the surface of the heating pipe is sleeved with an aluminum foil layer, the surface of the aluminum foil layer is sleeved with a corrugated extension pipe, the surface of the corrugated extension pipe is sleeved with a waterproof film, and the surface of the waterproof film is sleeved with an A fixing ring. According to the pipeline anti-freezing device for the outdoor water heater, through the arrangement of the electric heating wire, the fixing ring A and the fixing ring B are installed on the outer surface of the waterproof film and communicated with an external power source, the temperature sensor senses the external temperature, and when the temperature is low, the temperature controller controls the electric heating wire to heat, heat the pipeline and melt ice, so that the pipeline of the water heater is prevented from being frozen to crack.

The invention relates to the field of fiber materials, in particular to fiber material controllable stretching forming equipment and a method thereof. The controllable stretching forming equipment for the fiber material comprises a stretching box; the two partition plates are installed in the stretching box, a cavity in the stretching box is divided into a stretching chamber and two adjusting chambers through the two partition plates, and the stretching chamber is located between the two adjusting chambers; wherein a plurality of groups of roller assemblies are arranged in the stretching chamber, and a fiber material can be stretched through the plurality of groups of roller assemblies. According to the controllable stretching forming equipment and method for the fiber material, by arranging the roller adjusting assembly, the height difference of the rollers in the roller assembly can be adjusted, and it can be ensured that the stretching force borne by the fiber material in the stretching process is more uniform by adjusting the height difference of the rollers; and the fracture risk caused by overlarge local stress in the stretching process of the fiber material can be reduced, and the ductility and strength of the fiber material are improved.

The utility model discloses a hygroscopic warp-knitted fabric and clothes made of the hygroscopic warp-knitted fabric. The moisture-absorbing warp-knitted fabric comprises a fabric body, the fabric body is formed by knitting a guide bar GB1 and a guide bar GB2 in a warp knitting mode, yarn laying of the guide bar GB1 is moisture-absorbing yarn, and yarn laying of the guide bar GB2 is elastic yarn; the ratio X / Y of the width X formed by the open loops of the fabric body to the width Y formed by the three adjacent closed loops on one side and the horizontal distance between the open loops and the closed loops is 1 / 4-1 / 3, and the angle alpha formed by an inlet extension line and an outlet extension line of a first yarn forming loop in the fabric body ranges from 90 degrees to 160 degrees. The moisture-absorbing warp-knitted fabric and the clothes made of the moisture-absorbing warp-knitted fabric are stiff, wide and stylish and have good moisture-absorbing and sweat-releasing effects.

The invention discloses a method for producing a double-zero aluminum foil by casting and rolling an aluminum slab, the double-zero aluminum foil comprises the following components in percentage by mass: 0.1-0.3% of Si, 0.5-0.9% of Fe, less than or equal to 0.1% of Zn, less than or equal to 0.05% of Cu, less than or equal to 0.05% of Mn, less than or equal to 0.05% of Mg, less than or equal to 0.05% of V and the balance of Al and other inevitable impurities, the single content of the other impurities is less than or equal to 0.03%, and the total amount of the other impurities is less than or equal to 0.1%. The production method sequentially comprises the steps of smelting and preparing aluminum alloy liquid, blowing and refining in a furnace, online degassing and filtering outside the furnace, ultrasonic-assisted cast rolling, aluminum plate coil cold rolling and high-temperature annealing, cold rolling and medium-temperature annealing, aluminum foil coil cold rolling and low-temperature annealing and cold rolling and finished product annealing, and the double-zero aluminum foil is obtained. According to the method, through degassing and deslagging purification inside and outside the furnace and ultrasonic-assisted cast rolling, the cleanliness and the structure component uniformity of the cast-rolled aluminum plate blank are improved, the double-zero aluminum foil is produced through the cast-rolled aluminum plate blank, the technological process is shortened, the number of pinholes is reduced, and the performance, the quality and the yield of the double-zero aluminum foil are improved.

The invention discloses pre-swelling multipolymer high-viscoelastic asphalt modified particles and a preparation method thereof, and belongs to the technical field of road engineering materials. The pre-swelling multipolymer high-viscoelastic asphalt modified particles are prepared from the following components in parts by weight: 10 to 40 parts of desulfurized waste tire rubber powder, 20 to 30 parts of styrene-butadiene-styrene block copolymer, 15 to 20 parts of adhesive, 10 to 17 parts of compatilizer, 13 to 18 parts of tackifier and 2 to 5 parts of auxiliary agent. In the pre-swelling multi-polymer high-viscoelastic asphalt modified particle provided by the invention, the desulfurized waste tire rubber powder is pre-swelled in the compatilizer, and the SBS develops in advance in the asphalt adhesive to form a continuous phase system which is not easy to deform and has a certain degree of elastic property with asphalt; according to the preparation method, high-volume desulfurized waste tire rubber powder and SBS in the prepared modified particles can be stably dispersed in matrix asphalt, the performance is rapidly improved, the construction workability is improved, and the modified particles have the advantages of good viscoelasticity, adjustment and optimization as required, stable system, high economic benefit and the like.

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.