1664results about "Textile cables" patented technology

The invention discloses a steel wire rod for a 2400-2460 MPa grade stress corrosion resistant prestressed steel strand, the steel strand and a production method. The steel wire rod comprises the following chemical components in percentage by weight: 0.90-0.97% of C, 0.6-1.2% of Si, 0.2-0.8% of Mn, 0.15-0.45% of Cr, 0.02-0.05% of V, 0.01-0.05% of Nb, less than 0.30% of Ni, less than 0.30% of Cu, less than 0.30% of Mo, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.004% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. By optimizing the chemical components and the production process of the wire rod, the strength of the prepared steel strand meets 2400-2460 MPa, the minimum stress corrosion value is 2.5 hours, the median value is 5 hours, and the stress corrosion resistance is obviously superior to that of an existing steel strand.

The invention discloses a steel wire rod for a 2300-2360 MPa grade stress corrosion resistant steel strand, the steel strand and a preparation method. The steel wire rod comprises the following chemical components in percentage by mass: 0.85-0.91% of C, 0.3-1.0% of Si, 0.2-0.8% of Mn, 0.15-0.45% of Cr, 0.02-0.05% of V, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.004% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. The steel wire rod has excellent strength and plasticity, the ultrahigh strength of 2300 MPa or above can be obtained through drawing with a small area reduction rate, surface damage and internal defects of the steel wire rod during subsequent drawing machining are reduced, and the stress corrosion index of the steel strand is improved.

The invention discloses a steel wire rod for a 2200-2260 MPa grade ultrahigh stress corrosion resistance prestressed steel strand, the steel strand and a production method of the steel strand, and the steel wire rod comprises the following alloy components in percentage by mass: 0.83-0.89% of C, 0.60-1.40% of Si, 0.20-0.80% of Mn, 0.15-0.50% of Cr, less than 0.30% of Cu, less than 0.30% of Ni, less than 0.30% of Mo, 0.01-0.05% of V, 0.001-0.05% of Nb, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.0040% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities, through component design and a reasonable after-rolling controlled cooling process, the microstructure is refined, the sorbite rate is improved, high strength and plasticity are obtained with low carbon content, the drawing deformation can be reduced, material damage can be reduced, and the corrosion resistance of the steel strand is improved.

The invention discloses a steel wire rod for a 2500-2560 MPa grade stress corrosion resistant prestressed steel strand, the steel strand and a production method. The steel wire rod comprises the following chemical components in percentage by mass: 0.95-1.02% of C, 0.8-1.5% of Si, 0.5-1.0% of Mn, 0.25-0.45% of Cr, 0.02-0.08% of V, 0.01-0.05% of Nb, less than 0.30% of Ni, less than 0.30% of Cu, less than 0.30% of Mo, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.004% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. By optimizing the chemical components and the production process and refining the microscopic structure, the steel strand prepared from the steel wire rod has high tensile strength, the minimum stress corrosion value is 2.5 hours, the median value is more than 5 hours, and the steel strand shows excellent stress corrosion resistance.

The present invention addresses the problem of providing a pneumatic tire in which a reduction in tire performance is mitigated despite using polyamide fibers with low amide density. The solution is a pneumatic tire characterized by comprising a carcass layer (50), belt layers (60A, 60B), and a belt reinforcement layer (70A), wherein reinforcing cords (50-1, 70A-1) in the carcass layer (50) and / or the belt reinforcement layer (70A) contains polyamide fibers having an amide density of 14.0 or less, and (i) when a gauge thickness A from the outer circumferential surface on the tire inner-surface side of the reinforcing cords (50-1) of the carcass layer (50) to the tire inner surface is measured at 100 equally spaced points, the average of the gauge thickness A is 1.5 mm or less, or (ii) when a gauge thickness D from the outer circumferential surface on the tire outer-surface side of the reinforcing cords (70A-1) of the belt reinforcement layer (70A) to the tire outer surface is measured at 100 equally spaced points, the gauge thickness D is 6.0 mm or less at 80% of the measurement points or more.

The invention discloses an alloy for a 2230 MPa-grade high-corrosion-resistance steel strand, a wire rod, the steel strand and a method, and the alloy comprises the following components in percentage by mass: 0.89-0.93% of C, 1.20-1.40% of Si, 0.50-0.70% of Mn, 0.30-0.40% of Cr, 0.01-0.04% of V, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.0040% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. By optimizing the chemical component design and controlling the production process, the homogeneity of the steel is improved, the homogeneity of the wire rod is improved, the purity is improved, meanwhile, surface damage and internal defects during steel wire drawing machining are reduced, and therefore the stress corrosion index of the steel strand is improved.

A strap device includes a strap having a first end and a second end. A first end component is coupled to the first end of the strap, and includes a first ring, a hook extending from an outer surface of the first ring, and a projection extending from the outer surface of the first ring. A portion of the projection, a portion of the outer surface of the first ring, and a portion of the outer surface of the hook define a channel. A second end component is coupled to the second end of the strap, and includes a second ring sized such that the second ring can pass through the first ring.

An adjustable tethering system is disclosed that includes a primary line, a secondary line, and a capsule. The secondary line is wound about the primary line to form a frictional locking arrangement that resists translation of the secondary line along the primary line when the secondary line is tensioned. The capsule can be manipulated by a user to selectively release the frictional engagement between the primary and secondary lines, thereby enabling controlled transition of the system from a secured state to a state in which the secondary line can translate along the primary line.

The invention discloses a flame-retardant and wear-resistant rope and a preparation method thereof, and belongs to the technical field of rope processing. The rope comprises a steel wire rope and a rubber sheath; wherein the rubber sheath comprises inner-layer rubber and outer-layer rubber; the inner-layer rubber is prepared from the following components: butadiene styrene rubber, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, gamma-mercaptopropyltriethoxysilane, a rubber adhesive, cobalt neodecanoate, sulfur and a vulcanization accelerator; the outer-layer rubber comprises the following components: butadiene styrene rubber, nitrile rubber, a flame-retardant wear-resistant reinforcing agent, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, an antistatic agent, sulfur and a vulcanization accelerator; the cross section of the rope is designed to be flat, the width of the rope is 30-250 mm, the thickness of the rope is 10-40 mm, and the mass of the rope per meter is 0.5-25 kg / m. The prepared rope has excellent flame retardance, wear resistance and antistatic performance, the adhesive force between the rubber layer and the steel wire is large, and the rope is not prone to being abraded or peeled off in long-term use.

The invention discloses a steel wire rod for a 2200-2260MPa-grade corrosion-resistant prestressed steel strand, the steel strand and a production method of the steel strand, and the steel wire rod comprises the following alloy components in percentage by mass: 0.85-0.91% of C, 0.3-0.6% of Si, 0.5-0.8% of Mn, 0.15-0.45% of Cr, 0.02-0.05% of V, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.004% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. According to the invention, by optimizing the synthesis composition and process, the microstructure is refined, and the sorbite rate is greatly improved to improve the strength and plasticity of the wire rod, so that the wire rod can obtain the ultrahigh strength of 2200MPa or above by drawing with a small area reduction rate; and the surface damage and internal defects during steel wire drawing processing can be reduced by reducing the drawing area reduction rate and remarkably improving the plasticity index of the wire rod, so that the stress corrosion index of the steel strand is improved.

An energy absorption device for absorbing at least a portion of impact energy occurring in an impact of an impact body in a safety net construction includes at least one cable guiding unit forming at least one cable receiving region for receiving and / or guiding at least one cable, and further includes at least one energy absorption element, arranged in the cable receiving region and forming at least one friction surface for the guided cable, the energy absorption element being configured, if a force inducing movement of the cable across the friction surface is exerted on the cable, to selectively absorb at least a portion of energy the force created via substantial deformation and / or abrasion of the friction surface. A cable brake, particularly a block-and-tackle cable brake, includes an energy absorption element of the energy absorption device, which is arranged at the deflection element on a side facing toward the cable.

A lockout device can be used to secure a valve, a valve stem, or other control. The lockout device includes a cover having an internal cavity and an opening about the internal cavity, a cable that is flexible, a cable attachment point attached to the cover to which the cable is attached at its securable end, and a cable lockout module attached to the cover. The cable lockout module includes a cable engagement element having a cable-receiving pathway extending therethrough for reception of a free end of the cable and selective securement thereof to create a cable loop. The cable lockout module further has a door. When the door is in a closed position, the cable engagement element is securely covered by the door and the door is lockable relative to a remainder of the cable lockout module to prevent the door from being opened.

The utility model provides a high temperature resistant traction rope, the traction rope is composed of an outer layer and a plurality of plied yarns located in the outer layer, each plied yarn comprises a core body, a reinforcing layer is arranged on the surface of the core body, a protective layer is coated on the surface of the reinforcing layer, a middle layer is arranged on the surface of the protective layer, and spiral heat conduction wires are wound on the surface of the middle layer. And the surface of the heat-conducting wire is coated with a high-temperature- After the scheme is adopted, the structure is reasonable, the high-temperature resistance is good, and the structure is stable.

The invention belongs to the technical field of engineering materials, and particularly discloses an anti-impact sheath for a carbon fiber composite cable. The sheath comprises an outer protective layer and an inner protective layer; the inner protective layer has a porous structure; the inner protective layer is made of at least one of polyurethane resin, silicone rubber, polylactic resin, fiber reinforced polyurethane resin and fiber reinforced silicone rubber; the porous structure has at least one pore structure selected from a regular pore structure, a disordered pore structure, a bionic pore structure and a gradient pore structure. The sheath has the advantages of being large in compression deformation, high in energy absorption capacity, good in impact resistance and protection effect, light in weight, high in designability and the like, when the sheath is applied to the carbon fiber composite cable, the transverse impact resistance of the carbon fiber composite cable can be remarkably improved, and the service life of the carbon fiber composite cable is prolonged. And the dead weight of the carbon fiber composite cable is reduced, and the bearing efficiency of the cable is improved.

A wire includes: a core; and a shell that covers an outer periphery of the core, wherein the core includes silver, the shell includes 33.0 mass % or more and 37.0 mass % or less of nickel, 9.0 mass % or more and 10.5 mass % or less of molybdenum, 19.0 mass % or more and 21.0 mass % or less of chromium, 0.5 mass % or more and 1.2 mass % or less of titanium, and a remainder including cobalt and an inevitable impurity, a diameter of the wire is 100 μm or less, and an elongation of the wire is 12% or more.

The invention discloses an enhanced tensile wear-resistant multi-twisted steel wire rope, which relates to the technical field of steel wire ropes, and structurally comprises a multi-twisted steel wire rope formed by twisting three sub-ropes in a left-to-right interactive manner, and each sub-rope is formed by twisting six stranded ropes in a right-to-right interactive manner; the aluminum-based carbon fiber composite core serves as the center of the stranded rope, and the gradient functional layer comprises six center steel wires on the inner layer, twelve micro-arc oxidation concave steel wires on the middle layer, eighteen graphene / zinc-aluminum coating convex steel wires on the outer layer and twelve phase change lubricating fiber bundles on the surface layer. The outer surface of the steel wire rope is sequentially coated with a self-repairing sealing layer containing repairing microcapsules, a boehmite / silane interface bonding layer and an Al2O3 / PEEK abrasion-resistant coating. The tensile strength and the structural stability are improved through a three-stage twisting process; the aluminum-based carbon fiber composite core and the gradient functional layer synergistically enhance core bearing, wear resistance and corrosion resistance; the phase change lubricating fiber bundles release lubricating components during friction, and damage repair is achieved through the self-repairing sealing layer; and the interface bonding layer and the wear-resistant coating strengthen the surface adhesive force and the wear resistance.

The steel wire rope comprises an independent steel wire rope core, an inner-layer rope strand and an outer-layer rope strand from inside to outside, and the twisting directions of the inner-layer rope strand and the outer-layer rope strand are opposite to achieve rotation resistance. The outer-layer rope strand adopts a surface contact structure formed by a round core wire and a Z-shaped special-shaped steel wire, and a composite coating which takes nickel-phosphorus alloy as a matrix and is provided with tungsten carbide particles in a dispersed manner is arranged on the surface of the steel wire of the outer-layer rope strand. And meanwhile, the rope core and the inner-layer stranded steel wires adopt zinc-aluminum-magnesium alloy coatings. The preparation method comprises the key steps of steel wire coating treatment, stranding, reverse rope combining, pre-tensioning, pressurizing and lubricating and the like. By combining the unique structure, material and process, the problems of insufficient wear resistance and corrosion resistance and unstable structure in the prior art are comprehensively solved, the service life of the steel wire rope is remarkably prolonged, the safety performance of the steel wire rope is remarkably improved, and the steel wire rope is particularly suitable for severe working conditions such as heavy hoisting and ocean engineering.

This invention relates to the field of cabin-penetrating sealing technology, specifically to a wire rope cabin-penetrating sealing device and method. The device includes a cabin-penetrating section, a transfer section, a fastening guide section, and multiple sealing sections. The fastening guide section is located at the front end of the cabin-penetrating section, and the transfer section is located at the rear end. A sealing section is provided at the fixed connection point between the transfer section and the cabin-penetrating section. The cabin-penetrating section is fixedly installed inside the cabin, and a sealing section is provided at the connection point between the cabin-penetrating section and the cabin. The sealing section includes a water-swellable sealing strip. The transfer section connects two cabin-penetrating sections installed in different cabins, achieving rapid installation, disassembly, and cabin-penetrating effect. The cabin-penetrating section and the transfer section are internally connected, with the wire rope passing through the middle. The fastening guide section is installed inside the cabin-penetrating section, and the size of the inner ring of the fastening guide section is adjusted to fix the outer wall of the wire rope. This invention solves the problems of current wire rope cabin-penetrating devices, such as simple structure, inability to provide buffering to neutralize axial sway of the wire rope, resulting in severe wear and short service life.

A rigid locking binder for mechanically securing large, heavy loads and tie-down chains used for securing loads. The variable length binder comprises a rigid, threaded rod coaxially coupled within an elongated sleeve, such that relative axial displacements of the rod relative to the sleeve or vice-versa results in lengthwise expansion or contraction. The binder has chain hooks at opposite ends, that are pivotally associated with remote ends of the rod and sleeve for coupling to loads or anchor points. An assembly for selectively locking the sleeve and rod together establishing a selected binder length comprises a rigid lever pivotally mounted to the sleeve that controls a thread locking mechanism. The lever is pivoted between parallel pin plates secured to the sleeve. The thread locking mechanism comprises a threaded half nut that selectively engages or disengages rod thread portions that are exposed through an access window defined in the sleeve.

To provide a string for a dial type lacing system, the string having high tensile strength, knot strength, and knot strength holding rate, having excellent flex resistance and abrasion resistance, and, therefore, being durable to not only short-term use but also repeated use for a long term.SOLUTION: A string for a dial type lacing system is obtained by coating with resin a core fiber composed of twisted yarn of a high-strength fiber multifilament. A value of a ratio of a diameter of the core fiber to a diameter of the string is 0.4 to 0.7.SELECTED DRAWING: None

The invention relates to the technical field of floating type platform mooring systems, and discloses a self-adaptive mooring cable, a manufacturing method and a self-adaptive mooring method.The self-adaptive mooring cable sequentially comprises a center main bearing layer, a middle protection layer and an outer self-adaptive regulation and control layer from inside to outside. The central main supporting layer is composed of synthetic fiber cables with high tensile strength; the middle protective layer wraps the periphery of the main bearing layer, is formed by weaving fiber materials and is used for preventing external media from invading; the outer-layer self-adaptive regulation and control layer covers the periphery of the protective layer and is woven into a net-shaped structure by shape memory alloy wires; the shape memory alloy woven mesh is configured to be capable of dynamically adjusting the overall rigidity of the mooring cable through thermoelastic martensite phase transformation based on environment temperature changes, and creep deformation of the synthetic fiber cable is slowed down. Through the synergistic effect of the three-layer structure, the structural stability and performance consistency of the mooring cable in long-term use are guaranteed.

A driving apparatus includes a casing, a driving section, a slider, a coil spring, and a cable including a cable end. The slider includes an engaging section to which the cable end is attached and a spring accommodating section accomodating a part of the coil spring; the slider moves in association with the cable when moving to one side of moving direction by a driving force of the driving section, and moves relative to the cable when moving to the other side of moving direction by a biasing force of the coil spring; and when the slider moves to the other side of moving direction by the biasing force of the coil spring, the coil spring extends while accommodating the cable end in an inner space of the coil spring, thereby reducing the size of the slider and the size of the entire apparatus.

A steel cord having a 1 * 4 structure in which four single wires are twisted together, in which the diameter of the single wires is 0.15-0.20 mm, and in a cross-section perpendicular to the long dimension of the steel cord when embedded in rubber, the diameter of the single wires is less than or equal to 0.15 mm and less than or equal to 0.20 mm, and the diameter of the single wires is less than or equal to 0.20 mm, in the cross-section perpendicular to the long dimension of the steel cord, and the diameter of the single wires is less than or equal to 0.20 mm. A composite region is defined as a region surrounded by a common tangent line between adjacent single wires that is tangent to the outer surface of the steel cord and a line segment connecting the centers of the adjacent single wires along the outer surface of the steel cord, and the area of the composite region is defined as an effective cross-sectional area. The effective cross-sectional area is from 0.099 mm < 2 > to 0.224 mm < 2 > (inclusive).

The invention belongs to the technical field of metal ropes, and provides a high-oil-content coated metal rope and a preparation method and application thereof.The coated metal rope comprises a metal rope body and a plastic outer layer coated on the outer surface of the metal rope body, and the metal rope body comprises a core wire containing first lubricating oil and a side wire containing second lubricating oil; the side wire is wound on the outer surface of the core wire, and the flash point of the first lubricating oil is 20-30 DEG C higher than the melting temperature of the plastic outer layer; the flash point of the second lubricating oil is 50 DEG C higher than the melting temperature of the plastic outer layer. According to the method, in the plastic outer layer coating process, the oil volatilization amount can be greatly reduced, plastic outer layer swelling, bubble existence and coating failure are avoided, the prepared high-oil-content coated metal rope is good in self-lubricating performance, internal friction and breakage of the metal rope can be greatly reduced, and the high-oil-content coated metal rope can be applied to a driving mechanism of a vehicle side sliding door.

The invention discloses a wire rod for an ultrahigh stress corrosion resistant prestressed steel strand, the steel strand and a production method. The wire rod comprises the following chemical components in percentage by mass: 0.65-0.75% of C, 0.60-1.40% of Si, 0.20-0.80% of Mn, 0.15-0.50% of Cr, less than 0.30% of Cu, less than 0.30% of Ni, less than 0.30% of Mo, 0.02-0.05% of V, 0.01-0.05% of Nb, less than or equal to 0.008% of S, less than or equal to 0.010% of P, less than or equal to 0.0040% of N, less than or equal to 0.0020% of O and the balance of Fe and other inevitable impurities. By designing the chemical components of the wire rod and combining process improvement, the steel strand made of the wire rod has excellent stress corrosion resistance, the minimum stress corrosion value is 8 hours, and the median value is 12 hours.

A reelable support member for downhole operations comprising a plurality of composite strands and a filler matrix between the plurality of composite strands, wherein each composite strand comprises carbon fibres and epoxy; and a method of manufacturing the reelable support member by winding a plurality of composite strands around a core, each composite strand comprising carbon fibres and epoxy, and applying a filler matrix between the plurality of composite strands.

The utility model is suitable for the technical field of flexible photovoltaic cable installation, and discloses a node of a flexible photovoltaic support and the flexible photovoltaic support. The node of the flexible photovoltaic support comprises a first connecting assembly and a second connecting assembly, and the first connecting assembly is used for being fixedly connected with a connecting foundation. The second connecting assembly comprises a connecting piece and an adjusting piece, and the connecting piece is connected with the first connecting assembly. The adjusting part is used for being detachably clamped between the connecting part and the tensioning part and rotationally connected with the connecting part and / or the tensioning part, or the adjusting part is used for being detachably clamped between the connecting part and the U-shaped bolt and rotationally connected with the connecting part and / or the U-shaped bolt. According to the node of the flexible photovoltaic support, the adjusting range of the installation angle of the tensioning component can be effectively expanded, the practicability of the tensioning component is improved, and the installation convenience of the U-shaped bolt for connecting the tensioning component to the node can be improved.