168results about How to "Tensile" patented technology

The invention provides a soft robot based on shape memory alloy driving. The soft robot has the characteristics of being simple in structure, capable of moving in multiple poses, good in environmental adaptation and the like. A single chip microcomputer is controlled to sequentially power on shape memory alloy wires embedded in the robot, the six shape memory alloy wires are arranged in a robot body, and an alloy wire overlapping structure is used for driving the robot to move forwards and backwards. The robot is provided with four feet, each foot comprises two shape memory alloy wires, the forward moving direction of the robot is changed by means of flexibility of the alloy wires, and multi-pose movement is achieved. A top heat dissipation structure can increase the movement speed of the root. A bottom tooth-shaped structure is beneficial to jacking up a silica gel outer shell in the mode that the alloy wires are powered on to retract. Supporting structures on the front side and the rear side serve as contact points of a supporting surface in movement, and friction force with the surface can be reduced in movement.

The invention discloses a production method of fireproof middle and high voltage cables. The production method includes the following steps: sorting; wire drawing; annealing; conductor stranding; inner shielding layer, insulation layer and outer shielding layer co-extrusion and warping; metal shielding layer arranging; first wrapping tape layer lapping; cabling stranding and cabling wrapping tape layer lapping; oxygen isolation layer extrusion; package fireproof isolation layer extrusion; second wrapping tape layer lapping; metal armor layer lapping; third wrapping tape layer lapping and outer sheath layer extrusion. The middle and high voltage cables produced in the production method have good heat insulation effect when being paved on buildings, are improved in fireproof performance, can delay damage to a power system caused by fire disasters, natural disasters and other accidents, and gains time for rescue.

The invention provides a slide layer for longitudinal isolation devices on bridge tracks. The slide layer is arranged below a longitudinal partition wall between a track and a bridge; the slide layer is positioned in the direction of the bridge length; both ends of the slide layer can be expanded to limit table across an abutment; the width of the slide layer is bigger than that of the track; the slide layer comprises an top-arranged film layer, an intermediate sliding film and a bottom-arranged film layer; the top face of the top-arranged film layer of the slide layer is adhered to the bottom face of the longitudinal partition wall; the bottom face of the bottom-arranged film layer is stuck to the top face of the bridge beam body. The invention has advantages of anti-friction, tensile resistance, anti-freezing, creep-resisting, anti-corrosion and having weather ability performances; meanwhile, the invention can meet the requirements for lower friction factor and low friction loss. Besides, the invention also has advantages of perfect processing performance, being economic and practical and low price. Therefore, the invention meet requirements of bridge track longitudinal isolation devices for slide layers.

The invention provides a reinforcing construction method in partial failure repairing of a rural cement pavement. The reinforcing construction method comprises the following steps: excavating an old concrete pavement needing to be repaired to the top surface of a roadbed and cleaning; cutting the excavated old concrete pavement and thus cutting the pavement into an inclined plane along the thickness direction of the road surface; respectively paving one layer of steel wire net on each of the bottom and the middle pat of the inclined section; paving thread steel bars and extending to a road surface region needing to be newly poured; pouring concrete into an excavated region of the old road surface to form a new concrete road surface. The invention aims to solve the road surface crushing problem in old cement road surface diseases of rural highways and useful resources including steel wires, steel bars and the like which are usual in villages can be effectively utilized; the engineering cost is saved and a repairing technology is simple, so as to provide a simple, economical and effective method for repairing the road surfaces of rural roads.

The invention provides a multifunctional size for andalusite fibers, which uses an organic compound containing flexible chains in molecules as a main body and compounds a plurality of auxiliary agents. The size comprises the following components in percentage by weight: 0.5-1.5 percent of film forming agent, 1-10 percent of softening agent (penetrating agent), 0.05-0.3 percent of antistatic agent(antiseptic), 0.01-0.2 percent of dispersant, 0.01-0.07 percent of coupling agent, 0.05-0.1 percent of catalyst and the balance of tap water. The size has good convergence, lubricating property, filmforming property, antistatic property and antiseptic characteristic. Not only fibers processed through the size have flexible, anti-bending and anti-stretching characteristics, but also the fibers sprayed with the size have good dispersive property in water and can be used for the surface soakage treatment of multiple silicate fibers.

The invention belongs to the technical field of mining shock-resisting supporting and particularly relates to a fault-passing roadway waterproof damping and shock-resisting coupling support method. The fault-passing roadway waterproof damping and shock-resisting coupling support method includes sequentially setting a surrounding rock plastic ring, a damping support ring and two layers of tiles from surrounding rocks of the fault to a roadway, forming the surrounding rock plastic ring by the surrounding rocks in an artificial blasting manner, and paving cement-based glass fibers on the inner surface of the surrounding rock plastic ring to form the damping support ring; paving two layers of the tiles on the inner surface of the damping support ring, wherein the tiles on the outer layer is outer waterproof tiles, and the tiles on the inner layer are inner tiles; enabling an anchorage rod to be perpendicular to the outlines of the tiles and sequentially penetrate the tiles, the damping support ring and the middle of the surrounding rock plastic ring to form a fixed coupling, and paving ballasts on the ground of the roadway and the upper surfaces of the tiles. By the method, support intensity is high, buffering and damping and shock resistance are high, and waterproof effect is good.

The invention discloses a hook-shaped steel core composite connecting piece prefabricated sandwiched heat insulation wallboard and a manufacturing method thereof .Internal and external acanthuses are formed by pouring concrete, a middle sandwich layer is a heat insulation board, and the three-layer structure is connected into a whole through hook-shaped steel core composite connecting pieces, wherein the hook-shaped steel core composite connecting pieces are hook-shaped reinforcing steel bar core continuous fiber composite connecting pieces and high-strength steel wire core model plastic compression molding steel core composite connecting pieces .The steel core composite connecting pieces of each kind are of a straight insertion type and an oblique insertion type .The internal and external concrete acanthuses are connected together through the straight insertion type hook-shaped steel core composite connecting pieces in a 90-degree orthogonal mode, and hook heads of the connecting pieces can hook an eternal acanthus internal reinforcing steel bar net; the internal and external wall acanthuses are connected together through the oblique insertion type steel core composite connecting pieces in a 45-degree oblique crossing mode .The prefabricated concrete sandwiched heat insulation external wall has the advantages of being high in anti-shear and anti-bending performance, good in heat insulation effect, high in construction efficiency, low in manufacturing cost, safe and reliable to use and the like .

The invention discloses a production method for conductors for fire-resistant middle-high voltage cables. The method includes steps of material selection, wire drawing, annealing, conductor hinging, co-extrusion and coating of an inner shielding layer, an insulation layer and an outer shielding layer, setting of a metal shielding layer, extrusion of a phase-separation fire-resistant insulation layer, winding of a first wrapping tape layer, cabling twisting and winding of cabling belting layer, winding of a metal armored layer, winding of a second wrapping tape layer and an outer sheath layer extrusion, wherein during the extrusion of the phase-separation fire-resistant insulation layer, ceramic silicon rubber materials are extruded on the metal shielding layer through a silicon rubber extruder, and the extruding thickness is 2.0mm-4.0mm. According to the method, the phase-separation fire-resistant insulation layer is arranged, the silicon rubber extruder is used for extrusion of the ceramic silicon rubber materials, therefore the materials are provided with good thermal insulating effect, ceramic bodies are fired by flames at a high temperature and provided with a certain mechanical strength and good electrical insulation performance due to the fact that the major material is inorganic silicon, so that the fire-resistant performance of the cables can be improved.

The present invention relates to a heat insulation dry-mixing composition, a plastering method thereof and a board prepared by the composition. The heat insulation dry-mixing composition comprises the following components mixed according to a weight ratio: 15-2000 parts of hollow glass ball, 0.3-15 parts of short silk fiber, 5-200 parts of gypsum powder, 1-150 parts of emulsion powder, 0.3-150 parts of cellulose and 15-2000 parts of cement. The heat insulation dry-mixing composition of the invention has the advantages of low cost, excellent heat insulation effect, no aging, no cracking, no breaking-off and fire resistance. At the state of same thickness, the board prepared by the heat insulation dry-mixing composition according to the invention has better heat insulation effect compared with the heat insulation plate prepared by polystyrene material and perlite material. Furthermore the heat insulation dry-mixing composition and the board prepared by the composition can be directly adhibited and installed on the outer wall of building and have same lifetime with the building. The heat insulation dry-mixing composition is a novel product which gives attention to the convenient operation, low producing cost and environment-protecting energy-saving requirements.

Canvas for a canoe comprises gray fabric, an inner coating and an outer coating, wherein the gray fabric is filament woven plain cloth, the inner coating is prepared from, by weight, 25-35% of polyvinyl chloride paste resin, 10-30% of dioctyl phthalate, 10-20% of dioctyl adipate, 8-10% of polyester type plasticizer, 20-35% of light calcium carbonate, 2-5% of lead oxide phosphite hydrate, 1-3% of titanium dioxide, 0.1-1.5% of preservative, 0.5-3% of flame retardant and 1-2% of pigment, and the inner coating is 0.5-1 mm thick; the outer coating is a polypropylene calendering film and is prepared from, by weight, 60-70% of polypropylene resin, 0.3-0.8% of ultraviolet light absorber, 15-30% of flame retardant, 10-15% of glass fiber and 0.6-1% of pigment, and a polyamide film which is purchased from market and 0.2-0.4 mm thick can also be adopted. A method for preparing the canvas mainly comprises the steps of padding and sizing, plasticizing in an oven, surface flattening and cooling into coils.

The invention relates to a polylactic acid-plant fiber composite degradable material which is mainly prepared by the following steps: catalyzing high polymer starch polylactic acid by a catalyst at high speed and high temperature to change the molecular weight, thereby obtaining a plastic four-way-tensile polylactic acid master batch; grinding agricultural waste or residual waste after agricultural processing at high speed by utilizing the physical principle of cooling to obtain powder with required particle size, sterilizing at high temperature, and carrying out emulsification polymerization with starch to obtain a plant fiber filler; and finally, mixing the polylactic acid master batch, plant fiber filler and modifier according to required proportion, polymerizing at high temperature (190-210 DEG C) to obtain the biodegradable composite raw material applicable to various natural, non-toxic, green and environment-friendly products.

The invention discloses a full-section water-blocking and sealed multi-signal composite cable, which includes a cable core, an inner sheath, a shielding layer and an outer sheath. layer, a shielding layer is braided between the outer sheath and the inner sheath, and a wrapping tape is also provided between the shielding layer and the outer sheath. The rope is helically twisted, and the twisted space of the cable core and the space of the shielding layer are filled with filling glue. The power line, coaxial line, twisted wire and outer sheath of the composite cable all contain a braided shielding layer, and are sheathed with chemical materials that are resistant to hydrolysis and wear, and the gaps between each unit are filled with water-blocking fillers. Rubber, with the ability to withstand high-pressure water seepage across the entire cross-section. In underwater applications, it can provide not only the optical fiber for optical signal transmission, but also the power line for control signal transmission, the coaxial line for radio frequency signals and the twisted pair wire for communication signals, and the product is small in size, diverse in function and stable in transmission.

The invention discloses a solar anti-corrosion high-voltage line iron tower monitoring system of a power supply system. The solar anti-corrosion high-voltage line iron tower monitoring 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 video control circuit, a solar assembly, a power supply battery, an anti-thunder module, a data processor, a date counter, a wireless transmission module which are arranged on the tower body, a wind power sensor arranged on the tower head and settlement monitors arranged on the portions, stretching into a concrete base layer, of the tower feet, the wireless transmission module is used for being connected with a monitoring center in a communication mode, and reinforcing ribs on the tower head can release transverse force and enhance the strength in the longitudinal direction of the iron power. The reinforcing ribs are arranged at an angle relative to the horizontal plane and can bear a part of transverse supporting force and ensure longitudinal rigidity. In the swing process of the iron tower, the reinforcing ribs arranged in a rhombus shape have certain resilience force, and the iron tower can be kept in a fixed posture and prevented from swinging at too large amplitude.

The invention relates to a permanent magnetic suspending bearing used as high-speed long-time continuous-rotation turbine mechanics. The turbine blades (1) are mounted on the end of a rotor, annular permanent magnetic steels (2, 5, 8) are mounted on the rotor, annular permanent magnetic steels (3, 4, 6, 7) are mounted on a stator, the annular permanent magnetic steels (2, 3) are in same size as the annular permanent magnetic steels (7, 8) while they are coaxially arranged in same direction with adsorption between and radial bearing function, the annular permanent magnetic steels (4, 5, 6) are different in size, but coaxially arranged in same direction with counter force to confirm the axial balance and stability of rotor. When rotation speed reaches preset value, the rotation inertia of rotor can confirm the rotor stably rotates. The invention has the advantages in non mechanical contact between the rotor and the stator, non mechanical abrasion, and continuous service.

The invention discloses a method for preparing high-performance concrete and application. The method comprises the following steps of: designing a concrete mixing proportion; sequentially adding fine aggregate, engineering fibers and gel material into a stirrer, and stirring till the engineering fibers are uniformly distributed; and adding water to prepare mortar, adding coarse aggregate, stirring uniformly, and adding an admixture to obtain the high-performance concrete required by design. The prepared high-performance concrete can be used for preparing high-performance concrete products. The method is simple and convenient for processing; the length of the utilized engineering fibers is easily controlled, so that the concrete has good workability, the forming velocity and the production efficiency are improved, the concrete has the advantages of tensile resistance, shearing resistance, cracking resistance, fatigue resistance, high toughness and the like, and concrete cracks caused by temperature stress can be reduced; the microstructure of the cement slurry is improved, and the compactness of the concrete is increased, so that the strength and the durability of the concrete are improved, and the service life of the concrete is prolonged; and the concrete has good safety and economic and social benefits.

The invention provides a tear-resistant packing material structure manufacture method and a tear-resistant product. The tear-resistant packing material structure manufacture method comprises a first material preparing step, wherein the first material preparing step comprises a warp and weft direction fiber bundle weaving step and a first press fit step; a second material preparing step, wherein the second material preparing step comprises a second press fit step and a first coating step; a third press fit step; a second coating step; a fourth press fit step; a third coating step and a drying step; and therefore, the tear-resistant packing material structure which is provided with a heat-sealing layer, a transition layer, a film-similar tear-resistant layer, a junction layer and a paper layer in sequence from bottom to top. The tear-resistant packing material structure manufacture method can be realized by automated mechanical equipment, so that the production efficiency can be improved, and the manpower cost is lowered. The tear-resistant packing material structure provided by the invention has printability and deflection owned by the paper layer and also has the effects of bearing capacity, high strength, high toughness and the like of the tear-resistant layer.

The invention discloses an optical fiber and control core composite type cable for wind power generation. The optical fiber and control core composite type cable for the wind power generation comprises a cable core, a packing layer is arranged in a gap position of the cable core, an inner protective sleeve wraps the outer portion of the cable core in a pressing mode, high-strength aramid yarns are woven outside the inner protective sleeve, and an outer protective sleeve wraps the outmost layer of the cable core. The cable core is composed of an optical fiber unit which is placed in the center of the cable core, four electric power transmission line cores and four control cable cores in a twisting mode. The optical fiber and control core composite type cable for the wind power generation is mainly used in a wind power generator tower and used for controlling electric power transmission of a generator, signal transmission of the generator and devices. The optical fiber and control core composite type cable for the wind power generation not only integrates electric power transmission, signal transmission and circuit control, but also has low temperature resistance, distortion resistance, cracking resistance, and a strong tensile property.

The invention relates to an imitated nylon differential fiber of dyeable polypropylene fiber for dyeing, which comprises: 80 to 90 percent of polypropylene, 9 to 11 percent of dyeable master batch, 0.3 to 0.7 percent of cooling auxiliary agent and 4.0 to 5.0 percent of polyethylene. The fiber has the advantages that: firstly, the polypropylene fiber has the flexibility, tensile property and elasticity as nylon through modifying the polypropylene fiber; and secondly, the dyeability of the modified polypropylene fiber is realized.

The invention provides a semi-hard low-temperature resistant PVC cable material. The semi-hard low-temperature resistant PVC cable material is prepared from the following components in parts by weight: 100 parts of a PVC resin, 0-10 parts of dioctyl phthalate, 1-30 parts of terpolymer, 0-30 parts of calcium carbonate, 0.1-0.2 part of polyethylene wax, 0.1-0.2 part of stearic acid, 2-5 parts of a calcium-zinc composite stabilizer and 0.01-1 part of high-density oxidized polyethylene wax. The invention further provides a preparation method of the semi-hard low-temperature resistant PVC cable material. The preparation method of the semi-hard low-temperature resistant PVC cable material comprises the following steps that S1, each raw material is weighed according to the weight value of the formula, and the raw materials are added into a high-speed mixer for mixing and plasticizing; S2, the mixture is transferred to a double-screw extruder for extrusion processing, and extruding and granulating are carried out through a single-screw extrusion granulator; and S3, air-cooled conveying and packaging is carried out. The semi-hard low-temperature resistant PVC cable material can be used formanufacturing wire and cable sheathing layers and insulating layers with high product flexibility requirements, such as wind energy cables, photoelectric composite cables, elevator cables, and built-in wires of refrigeration equipment, and has good low-temperature resistance and high hardness.

The invention discloses an anti-cracking type high-flame-retardance low-smoke halogen-free material for an optical cable. The high-flame-retardance low-smoke halogen-free material is prepared from thefollowing ingredients in parts by weight: 18 to 20 parts of EVA resin, 3 to 5 parts of POE resin, 12 to 15 parts of metallocene catalysis linear low-density polyethylene, 5 to 7 parts of maleic anhydride grafted polyethylene, 0.3 to 0.5 part of antioxidants, 30 to 50 parts of magnesium calcium carbonate, 5 to 8 parts of char-forming agents and 0.5 to 1 part of organosilicone flame retardants. Theanti-cracking type high-flame-retardance low-smoke halogen-free material for the optical cable as well as a preparation method and application thereof have the advantages that the optical cable can be used in outdoor environment; the external package is thick; some mechanical characteristics and environment characteristics such as pressure resistance, corrosion resistance and tensile performanceare realized; the mechanical performance and the flame retardant performance of the product can be simultaneously improved.