137results about How to "Guaranteed tensile properties" patented technology

The invention discloses an anticorrosion assemblage supporting mechanism system used for a power supply system and having a tilting early warning function. The system comprises a tower head, a tower body and tower feet, and further comprises a wireless tilt angle sensor, a temperature sensor, a video detector, a solar assembly, a power supply battery, a power supply battery voltage transformation module, a data processor, a date counter, a wireless transmission module, a wind force sensor and settlement monitors, wherein the wireless tilt angle sensor, the temperature sensor, the video detector, the solar assembly, the power supply battery, the power supply battery voltage transformation module, the data processor and the date counter are arranged on the tower body; the wireless transmission module is used for being in communication connection with a monitoring center; the wind force sensor is arranged on the tower head; and the settlement monitors are arranged on the parts, extending into a tower foundation, of the tower feet. Transverse force can be released through reinforcing ribs, and the strength of a supporting mechanism in the longitudinal direction is reinforced. The reinforcing ribs form included angles with the horizontal plane and can supply part of transverse supporting force and ensure longitudinal rigidity. In addition, in the swing process of the supporting mechanism, the reinforcing ribs arranged in a rhombus shape has certain resilience force, and the supporting mechanism can be kept in a fixed gesture and is prevented from swinging in large amplitude.

The invention discloses a torsion resistant photoelectric composite medium-voltage drum cable. The torsion resistant photoelectric composite medium-voltage drum cable comprises a plurality of power line cores and a plurality of ground line cores which are twisted together to form a cable core, as well as at least one optical unit, a special chloroprene rubber inner sheath wrapping the cable core, a reinforcing layer which is woven at the exterior of the special chloroprene rubber inner sheath and is embedded in the special chloroprene rubber inner sheath, and a special chloroprene rubber outer sheath wrapping the reinforcing layer; in power line core conductors and ground line core conductors, the stranding directions of two adjacent layers are opposite, and the stranding direction of each layer is opposite to the stranding direction of strand lines in a corresponding layer; the reinforcing layer is a terylene wire-woven reinforcing layer; insulating layers in the power line cores are ethylene propylene rubber layers; loose bushings are made of polybutylene terephthalate plastics; water-resisting yarns are made of water-resisting aramid fibers; thixotropic composites are made of factice; and nonmetallic reinforcing members are made of aramid fibers. With the torsion resistant photoelectric composite medium-voltage drum cable of the invention adopted, the special chloroprene rubber sheaths are adopted as the inner sheath and the outer sheath of the cable, and therefore, the torsion resistant photoelectric composite medium-voltage drum cable has excellent low temperature resistance, wear resistance, oil resistance and other properties, and the service life of the cable can be prolonged.

The invention discloses a method for manufacturing a photoelectric composite medium-voltage drum cable. The photoelectric composite medium-voltage drum cable comprises power line cores, ground line cores, at least one optical element, a special neoprene inner sheath wrapping a cable core, a reinforcing layer which is woven at the exterior of the special neoprene inner sheath and embedded in the special neoprene inner sheath and a special neoprene outer sheath wrapping the reinforcing layer; chlorinated polyethylene rubber materials include the following components of: a chlorinated polyethylene raw rubber, magnesium oxide, dibasic lead sulfate, lead sulfate tribasic, paraffin, chlorinated paraffin, antioxidant, namely, poly(1,2-dihydro-2,2,4-trimethyl-quinoline), a reinforcing agent (carbon black), flame retardant (antimony oxide), a filler (talcum powder), a filler (calcium carbonate), a reinforcing and filling agent (white carbon black), a vulcanizing promoter (triallyl isocyanurate), and a vulcanizing agent (dicumyl peroxide). With the method for manufacturing the photoelectric composite medium-voltage drum cable of the invention adopted, the cable can still keep excellent insulation performance under high temperature burning and humid conditions, and it can be ensured the cable can work normally for a long time under burning, mechanical percussion and water spraying situations.

The invention discloses an ultra-high performance concrete composite beam bridge deck slab wet joint continuous structure with a template, which comprises a prefabricated section, a wet joint sectionand a steel bottom template; the prefabricated section bridge deck slab is made of an ultra-high performance concrete material; the steel bottom template is an extension section of the prefabricated section bridge deck slab bottom template, butt welding is conducted in the middle of the wet joint, and the steel bottom template serves as a bottom template of the wet joint section; the wet joint section is supported on the steel bottom template and connected with the steel bottom template and the prefabricated section in a pouring mode, the wet joint section is laid continuously, the thickness of the wet joint section is equal to that of the bridge deck slab, and the wet joint section is made of ultra-high performance concrete materials the same as those of the bridge deck slab. The wet joint is provided with the template, is high in tensile strength and compressive strength and good in durability, can effectively guarantee the performance continuity of the ultra-high performance concrete at the wet joint interface, has the advantages of being effective in steel bar connection, convenient to construct and easy to maintain, and can solve the problem of the connection quality of the ultra-high performance concrete wet joint.

The invention discloses a heat treatment method for improving mechanical property of GH738 bolt type products. The GH738 bolt type products are subjected to head molding and heading through a solid solution state material, then stabilizing treatment is conducted, then primary aging treatment is conducted, then secondary aging treatment is conducted, and thus heat treatment of the GH738 bolt type products is finished. During secondary aging treatment, much more high-density gamma' strengthening phases are separated out, so that much more gamma' strengthening phases with smaller size and large degree of dispersion and much more carbide are obtained, the alloy is strengthen sufficiently, and accordingly the mechanical property of the GH738 bolt type products is improved. By the adoption of the heat treatment method, the technical problem that the mechanical property usually cannot meet the requirements in ordinary heat treatment production is solved, and the prepared GH738 bolt type products can be applied and popularized in the field of aero-engines.

The invention discloses a preparation method of shading screen cloth with antibacterial and antiageing performances. The prepared shading screen cloth is of a double-layered composite structure. The preparation method comprises the following steps: firstly, separately synthesizing outer screen cloth of an anti-ultraviolet layer and inner screen cloth of an antibacterial layer; then preheating and melting the two screen cloth through adjustment variation of the temperature of a heating roller, and assisted by an adhesive, pressing a rubber roller with an iron roller, and forming cooling forming to boating the shading screen cloth. The shading screen cloth of the double-layered composite structure is directly prepared from functional composite high molecular fibers separately without adding an anti-ultraviolet agent and an antibacterial agent. A finished product not only has an excellent anti-ultraviolet function, but also has a strong antibacterial and anti-mold property, is stable in chemical property, and also avoids use of external additives. Various stretch resisting, anti-ageing, corrosion-resisting, radiation-resisting and light characteristics of the screen cloth are guaranteed to the maximum.

The invention provides a new process for manufacturing the book block of a hardcover book, and the new process comprises the following steps: printing paper, folding, collating, milling the back of the book block, coating a PUR (Poly Urethane Resin) primer, coating an EVA (Ethylene Vinyl Acetate) side adhesive, placing gauze, playing and molding the book block, transporting the book block, solidifying an adhesive layer, cutting the book block and the like; and the step of wire locking which has the disadvantages of time consumption and long labor hours in the traditional process is omitted. In order to enable the book block to reach the service standards, the PUR primer is adopted; compared with the traditional EVA hot-melting primer, the PUR primer has a series of advantages of greater tension, better temperature adaptability, stronger strength and the like; the tension resistance of the book is ensured under the condition that the wire locking is not carried out on the book block; and simultaneously, the book is beautiful and is easy to store. Furthermore, the new equipment suitable for the new process for manufacturing the book block of the hardcover book provide by the invention comprises an adhesive binding machine and a collating machine, can carry out the revision and collation on the book block without the operation of wire locking and has the advantages of labor hour saving and cost reduction.

The invention relates to a prestressed reinforcement and non-prestressed reinforcement combined H-shaped reinforced concrete sheet pile and a manufacture method thereof. The H-shaped reinforced concrete sheet pile adopts an I-shaped structure; and prestressed reinforcement and non-prestressed reinforcement are arranged in the H-shaped reinforced concrete sheet pile at the same time. Compared with the prior art, the H-shaped reinforced concrete sheet pile has the advantages of good bending resistance and shearing resistance, low cost, high efficiency, zero contamination, environmental protection and the like.

The invention discloses a starch-based adhesive with high binding power and good heat conductivity for a paperboard. The starch-based adhesive with high binding power and good heat conductivity for a paperboard comprises the following raw materials in parts by weight: 40-80 parts of an acrylate adhesive, 20-40 parts of modified plant protein, 5-15 parts of lotus root starch, 1-3 parts of diphenylmethane diisocyanate, 1-2 parts of sodium hypochlorite, 1-2 parts of hydrogen peroxide, 1-3 parts of borax, 2-6 parts of a silane coupling agent KH-570, 2-6 parts of vinyl acetate, 1-2 parts of calcium carbonate, 2-10 parts of urea resin, 1-4 parts of sodium hydroxide, 2-10 parts of silicon dioxide, 1-6 parts of aluminium hydroxide, 1-4 parts of aluminium oxide, 1-5 parts of magnesium oxide, 0.1-0.8 part of ammonium persulfate, 1-5 parts of croscarmellose sodium, 1-3 parts of a stabilizer, 1-2 parts of a defoamer, and 10-30 parts of water. The starch-based adhesive is good in heat conductivity, high in binding power and excellent in waterproofing, toughness and stability.

The invention discloses a preparation method of a halloysite-based soft magnetic ferrite wave absorbing material. The preparation method comprises the following steps: S1, after using ferrous chloride, nickel chloride, aluminum chloride and magnesium chloride as main materials, adding hydrochloric acid, and dissolving the main materials, then adding barium oxide, cerium oxide, titanium oxide and vanadium oxide, and stirring until completely dissolving, thus obtaining a material 1; S2, adding halloysite into an ionic solution, carrying out ultrasonic dispersion, adding the material 1, and uniformly mixing, thus obtaining a material 2; S3, uniformly mixing ammonium hydroxide, 1,3-propane diamine and triethanolamine according to a volume ratio that ammonium hydroxide to 1,3-propane diamine to triethanolamine is (3 to 5) to (1 to 2) to (2 to 3), thus obtaining a mixed alkaline solution; S4, dropwise adding the mixed alkaline solution into the material 2, continuously stirring during a dropwise adding process, rising the temperature to 50 to 70 DEG C after completely finishing dropwise adding, standing and keeping warm, filtering after cooling, and drying, thus obtaining a material 3; S5, carrying out microwave sintering on the material 3 in nitrogen gas, and cooling, wherein nitrogen gas partial pressure and the sintering temperature meet a following relation expression: 1gPnitrogen gas equals to k-1454/(T+273). According to the preparation method disclosed by the invention, the wave absorbing performance of a ferrite material is increased, the density is small, the weight is light, and actual using requirements are met.

The invention provides a deep submersion pressure-resistant waterproof cable comprising a flexible cable core, insulting wire cores, an internal sheath layer, a braided reinforcing layer and an external sheath layer. There are at least four insulating wire cores which are evenly distributed around the flexible cable core so as to form a strand through twisting to enclose the flexible cable core. The internal sheath layer fills and adheres the external part of the insulating wire cores. The braided reinforcing layer open wraps the external part of the internal sheath layer. The external sheath layer wraps the external part of the braided reinforcing layer. The advantages of the deep submersion pressure-resistant waterproof cable are that the cable is compact in integral structure and stable in performance. The integral structure of the cable is formed, and force can be evenly dispersed when the cable bears deep seawater pressure, pull force of the cable and external pull force so that damage to the external sheath layer caused by force bearing can be effectively reduced, and the phenomenon of "snakeskin" of the sheath layer can be effectively prevented.

A high-pressure flexible rubber hose and a manufacturing process thereof relate to the technical field of rubber products, in particular to a high-pressure flexible rubber hose and a manufacturing process thereof. The object of the present invention is to provide a high-pressure flexible rubber hose with tight connection between layers and strong pressure resistance. A high-pressure flexible rubber hose is characterized in that: it includes an inner rubber layer, and a high elastic rubber layer is arranged outside the inner rubber layer, and a non-woven fabric winding layer is arranged outside the high elastic rubber layer; In the rubber layer, the steel wire mesh is staggered in the middle rubber layer; the polyethylene film is arranged outside the middle rubber layer, and the protective armor is arranged on the outside of the polyethylene film.

A supporting and protecting composite anti-slide pile suitable for high-attitude and high-intensity regions is composed of a pile core and a pile cylinder, wherein the pile cylinder is tightly pasted on the outer side of the pile core. The pile core is composed of a prefabricated prestressed pile, grouting pipes and a center grouting pipe, wherein the cross section of the prefabricated prestressed pile is orthohexagonal. Each side face of the prefabricated prestressed pile is provided with a groove in the axis direction. The grouting pipes are arranged in the grooves. A center grouting hole is formed in the prefabricated prestressed pile in the central axis direction. The center grouting pipe is arranged in the center grouting hole. The pile cylinder is composed of multiple layers of reinforcing steel bar cages and a grouting body. The reinforcing steel bar cage on the innermost layer tightly wraps the pile core, the reinforcing steel bar cage on the outermost layer is tightly attached to the hole wall, and the rest layers of reinforcing steel bar cages are evenly distributed. The reinforcing steel bar cages are wrapped in the grouting body. The concrete strength of the pile core reaches more than 80 MPa, and therefore the defects that the cast-in-place concrete hardening speed is low at a low temperature, and the quality is difficult to ensure are overcome; the tension resistance of the pile is greatly improved due to the prestress of the pile core and the reinforcing steel bar cages of the pile cylinder, and therefore the horizontal bearing capacity is improved, and larger anti-slide force can be provided by the supporting and protecting composite anti-slide pile.

The invention discloses a highly seismic region prefabricated assembled bridge central pier stud-cover beam node pouring connection mode and construction and belongs to the field of bridge engineering. The construction comprises a prefabricated pier stud and a prefabricated cover beam. The prefabricated pier stud and the prefabricated cover beam are connected into a bridge pier system through pouring of high-performance materials and splicing. The prefabricated pier stud is composed of a pier stud longitudinal bar, a pier stud stirrup, an overlap-joint large-diameter longitudinal bar, an overlap-joint stirrup and an inclined rebar jointly. The prefabricated cover beam comprises a grouting pipeline, a cover beam construction stirrup and a pouring inserting groove. The splicing quantity of the pier stud longitudinal bar is only a half or much less of the total quantity of longitudinal stressed rebars, and high-performance materials are adopted for pouring splicing. Small damage to a post-earthquake pier stud plastic hinge region is ensured while a large-diameter overlap joint longitudinal bar meets the bridge anti-seismic requirement in a highly seismic region. The bridge building speed can be increased greatly and construction convenience is improved greatly while the bridge anti-seismic requirement in the highly seismic region is met and construction quality is ensured, and a completely novel technical solution can be provided for prefabricated assembled bridge engineering application in the highly seismic region.

The invention discloses a multicore bundling self-supporting optical fiber cable and a manufacturing method thereof, the multicore bundling self-supporting optical fiber cable structurally comprises asuspension wire part and an optical fiber cable part which are connected through a sling; the optical fiber cable part is formed through extruding and wrapping of a low smoke zero halogen flame-retardant jacket by a cable core and two tearing ropes. According to the optical fiber cable, a plurality of loose tubes are used for accommodating a plurality of optical fibers respectively, the loose tubes perform parallel wiring directly in the jacket process, the cabling process is saved, the production work flow is simplified, the production efficiency is improved, and the plurality of core loosetubes can be laid in a branching manner simultaneously.

The invention provides an embedded type light wallboard steel structure building structure. The embedded type light wallboard steel structure building structure comprises an inner wall wallboard structure, a steel beam joint structure, a corner column joint structure, a flat column joint structure and a wallboard splicing seam structure. Glass fiber gridding cloth is laid on the surfaces of an inner wall steel beam groove filling wall of the inner wall wallboard structure and an outer wall steel beam groove filling wall of the steel beam joint structure, joints of a steel structure corner column, a steel structure flat column and light wallboards and joints between the light wallboards, the outer wall faces of the light wallboards are sequentially coated with third waterproofing layers, special interface agents, wall face leveling layers, second waterproofing layers, steel wire nets and first waterproofing layers from inside to outside, the steel wire nets are laid in the second waterproofing layers and combined with the second waterproofing layers to form an outer wall waterproofing and anti-cracking layer, and the glass fiber gridding cloth and the third waterproofing layers are combined to form a waterproofing and anti-cracking layer of the inner wall steel beam groove filling wall. The building structure has good anti-cracking, water-proofing and seepage-proofing performance, scientific in design and simple, a construction method is simple, the operation is easy, materials are easy to purchase, and application and popularization are facilitated.

The invention discloses an electric wire and cable packaging part. The electric wire and cable packaging part comprises an electric wire and cable disc, the interior of the electric wire and cable disc is provided with a bundling center, the two sides of the electric wire and cable disc are each provided with a bundling band, a double-layer paper board is arranged under the electric wire and cabledisc, and a foam board is arranged in the double-layer paper board; an annular corrugated paper board is arranged on the outer wall of the electric wire and cable disc, a composite packaging film isarranged on the outer wall of the annular corrugated paper board, a polyethylene film is arranged in the composite packaging film, a bonding agent is arranged on the inner wall of the polyethylene film, and a two-way stretching nylon film is arranged on the inner wall of the bonding agent; the composite packaging film is provided with through holes; and fixing adhesive tape is arranged on the outer wall of the composite packaging film. Through the electric wire and cable packaging part, the problems that due to the fact that existing electric wires and cables are packaged only through bundlingbands and packaging films, the electric wires and cables are prone to being loosed and deformed are effectively solved.

The invention discloses a pneumatic actuator. The pneumatic actuator comprises a cylinder, wherein a pair of pistons are arranged in the cylinder; the sides, positioned outside the cylinder, of the pistons, are connected with springs; a first rack and a second rack are respectively arranged on the sides, positioned inside the cylinder, of the pistons; an output shaft is arranged between the pistons inside the cylinder; the first rack and the second rack drive the output shaft to rotate; a first air hole and a second air hole are further formed in the pneumatic actuator; the first air hole communicates with the internal space between the pistons; the second air hole communicates with the external space of the cylinder; and the pistons are double-layer structures comprising metal layers and ceramic layers. According to the pneumatic actuator, the pistons in a cylinder body are arranged as structures with double layers, one layer is the metal layer, the other layer is the ceramic layer, the two layers are in tight press fit, the metal layer guarantees the tensile strength of the pistons, the ceramic layer guarantees the abrasion resistance of the pistons, and the pistons are firmer and more abrasion-resistant when the two layers are combined for utilization, so that the service life of the pneumatic actuator is greatly prolonged.

The invention discloses a zinc/graphene three-dimensional composite structure negative electrode for a zinc battery and a preparation method thereof. The preparation method comprises the following steps of: taking polyimide fiber paper or a polyimide film as a carbon source, taking CO2 laser as a heat source, and preparing a three-dimensional graphene layer by using a laser irradiation induction method to obtain laser-induced graphene; and taking the laser-induced graphene of a three-dimensional structure as a working electrode, taking a zinc sheet as a reference electrode and a counter electrode, immersing the working electrode and the zinc sheet into an electrolyte solution, and electroplating under constant voltage to obtain the zinc/graphene three-dimensional composite structure negative electrode. The zinc/graphene negative electrode of the three-dimensional structure has the advantages of bendable material, light weight and high cycling stability, can improve the rate and power performance of a battery, and can prolong the charge-discharge cycle life of a device.

The invention discloses an oil agent permeation resistant pesticide bottle and a preparation method thereof. The oil agent permeation resistant pesticide bottle is prepared from the following raw materials in parts by weight: 50-80 parts of polyethylene; 15 to 25 parts of an ethylene-vinyl alcohol copolymer; 2-5 parts of a compatilizer; 5 to 15 parts of silicon resin particles; 3-6 parts of a reinforcing agent; 1 to 3 parts of an antioxidant; the silicon resin particles are obtained by mixing and reacting a component A and a component B in a mass ratio of 1: 1 and then carrying out ball milling; the component A comprises the following raw materials in parts by weight: 30-60 parts of vinyl silicone oil; 5 to 20 parts of hydrogen-containing silicone oil; the component B comprises the following raw materials in parts by weight: 20-30 parts of vinyl silicone oil; 5-10 parts of a platinum catalyst; 0.001 to 0.01 part of an inhibitor; in a mixed system of the component A and the component B, the molar ratio of silicon-hydrogen bonds to vinyl is (2-3): 1. The pesticide bottle prepared by the invention has relatively good strength performance and oil penetration resistance.

The invention discloses a wear-resistant and corrosion-resistant cable for electric power, comprising a cable body, a plastic polyurethane layer is installed on the side of the cable body, and the plastic polyurethane layer and the cable body are bonded by super glue. The top of the plastic polyurethane layer is provided with a corrosive electrostatic net, and the corrosive electrostatic net and the plastic polyurethane layer are movably connected through the cable body. One side of the corrosive electrostatic net is installed with a hot-dip silver-plated layer. The anti-corrosion buffer zone is installed on the side of the anti-corrosion buffer zone, and the anti-corrosion buffer zone is embedded in the hot-dip silver layer, the top of the anti-corrosion buffer zone is installed with a steel strand, and one end of the steel strand is installed with an insulating sleeve , and the other end is provided with an insulated wire core. By being provided with a plastic polyurethane layer and an epoxy resin coating, the rapid aging of the cable can be prevented, the mechanical and electrical properties of the power cable can be maintained, the service life of the power cable can be maintained, and the cable can be guaranteed. electrical properties.

The invention relates to photo-communication transmission equipment, in particular to a high-strength metal sleeve for optical cables. In the sleeve, a plurality of bar-shaped metal sheets are overlapped transversely to form a circular tube, and each metal sheet is arranged in a spiral form and is made of stainless steel, the section of each metal sheet is pressed into a Z shape basically, and the height of the formed step is matched with the height of the metal sheet. Compared with a sleeve formed by arranging steel wires into a circle, under the condition that the weights of used materials are same, the sleeve has obviously reduced thickness, thus the overall diameter of a cable is reduced, and the manufacture, transportation, construction and maintenance costs of the product are lowered. Since inner and outer cambered surfaces formed by the sleeve of such a structure are a full circle, forces acting on the cable are uniform, and the cable can be better protected; in addition, the metal sheets are overlapped transversely, compression resistance is improved greatly while tensile strength is ensured.