443 results about "Bend radius" patented technology

The invention relates to the technical field of power cables, in particular to a bending-resistant medium-voltage power cable, which is characterized in that a plurality of cable cores are mounted in an outer sheath at equal angles in the circumferential direction, a plurality of supporting pads are uniformly mounted in the outer sheath at equal intervals, and a protective tube is mounted in the middle of the side end surface of each supporting pad; according to the invention, equal unloading of external bending stress and external impact pressure can be realized, and internal and external dual pressure relief can be realized, so that the stress borne by each part of the cable is more balanced, and the reliability of the cable is improved. The minimum bending radius of the cable can be dynamically regulated and controlled, comprehensive regulation and control of bending toughness and bending flexibility of the cable are achieved, the requirements of different use scenes are effectively considered, the application flexibility of the cable is improved, meanwhile, the effective utilization rate of load pressure in the cable can be improved, and the effective service life of the cable is prolonged.

The invention relates to a minimum bending radius multi-point turning action control method and system, and relates to the technical field of submarine cable laying, and the method comprises the steps: obtaining cable parameters of a cable, cable laying ship parameters of a cable laying ship, and marine environment parameters; analyzing the cable parameters, the cable laying ship parameters and the marine environment parameters to generate a predicted bending radius; analyzing the cable parameters to determine the minimum bending radius; judging whether the predicted bending radius meets the requirement of the minimum bending radius or not; if yes, the cable parameters of the cable, the cable laying ship parameters of the cable laying ship and the marine environment parameters are continuously obtained for cyclic judgment; if not, analyzing the predicted bending radius and the minimum bending radius to generate a bending radius error; analyzing the bending radius error to generate a speed adjustment amount; and the cable laying ship is adjusted according to the speed adjustment amount so that the predicted bending radius can meet the requirement of the minimum bending radius. The method has the effect of improving the timeliness of adjusting the bending radius.

The invention relates to a method for manufacturing a server shielding cable in the technical field of information, which comprises the following steps of: after a cable structure is determined, manufacturing by adopting a precise extrusion and weaving process, strictly controlling the temperature in a range of 1150-2100 DEG C and the pressure parameter in a range of 0.5-1.5 MPa in the production process, and manufacturing the server shielding cable by adopting the precise extrusion and weaving process. The size precision and consistency of the cable are ensured, the manufacturing defects are found and eliminated in time by using the on-line detection and quality control technology, and the qualified rate and reliability of the cable are improved; after manufacturing is completed, cable wiring design is carried out, a three-dimensional wiring simulation technology is adopted, the wiring path and the bending radius of the cable in a narrow space are optimized, a pulley guide device and an elastic fixing clamp which can adjust tension are designed, stress concentration of the cable in the wiring process is reduced, the service life of the cable is prolonged, and according to the wiring design result, the cable is manufactured. And the overall structure of the cable is further optimized so as to meet the requirements of an actual wiring environment.

The invention provides a copper alloy material, which contains 0.10-0.60 wt% of Mn, 0.15-0.50 wt% of Co, 0.04-0.39 wt% of P, and the balance of Cu and unavoidable impurities, and the copper alloy material has a component proportional relationship satisfying the following formulae (1) and (2): 0.25 < = {Mn} / {Co} < = 4.0... (1); 2.8 < = ({Mn} + {Co}) / {P} < = 5.0... (2) wherein {Mn}, {Co} and {P} respectively represent the mass percentage wt% of Mn, Co and P in the copper alloy material; the conductivity (EC) and tensile strength (TS) of the copper alloy material satisfy the following formula: {EC} * {TS} > = 450 (3); wherein {EC} represents the electric conductivity of the copper alloy material with% IACS as the unit, and {TS} represents the tensile strength of the copper alloy material with MPa as the unit. And meanwhile, the plate strip has good bending processability that the ratio R / t of the minimum bending radius to the plate thickness is less than 2.0. The copper alloy material can be produced by using conventional copper alloy casting, processing and heat treatment equipment, is manufactured through a special heat treatment process combining high-temperature short-time heat treatment and low-temperature long-time heat treatment, and can be applied to the field of wide characteristic requirements of the electric conductivity of 60-90% IACS and the corresponding tensile strength of 800-500 MPa.

The invention relates to the technical field of ship cranes, in particular to a ship crane cable limiting structure which comprises a crane jib and a cable, one end of the crane jib is fixedly connected with a hoisting plate, and a winch is arranged at one end of the crane jib. A plurality of groups of directional guide wheels are adopted to optimize a cable path, and the design of a bending radius adjusting mechanism is matched, so that the bending radius of a cable and a movable pulley is increased, the situation that the cable at the movable pulley is rapidly bent due to gravity is avoided, the large bending radius of the cable is kept in the moving process, and friction and damage are reduced; through joint cooperation of the connecting piece and the bending radius adjusting mechanism, the bending radiuses of the cables on the two sides of the lifting hook assembly are adjusted, meanwhile, the cables can be adaptively tensioned, the situation of cable conveying clamping stagnation is prevented, the cables at the bent positions can form a stable triangular shape, the situation that a hoisted object shakes is further avoided, and the hoisting efficiency is improved. The overall safety performance of the ship crane is improved.

The device comprises a mold body, a first pushing assembly and a second pushing assembly, the first pushing assembly comprises a first driving part and a first pushing head, the first pushing head is provided with a cavity, the cavity penetrates through the two ends of the first pushing head, the first pushing head is further provided with an opening, and the opening communicates with the cavity; the second pushing assembly comprises a second driving part, a second pushing head and a filling ball, the filling ball enters the cavity through the opening, and the second pushing head is driven by the second driving part to push the filling ball to move into the pipe blank along the cavity. Therefore, the bent pipe with the large pipe diameter and the small bending radius can be formed through secondary push bending of the second pushing assembly on the premise that pressure is not unloaded after primary push bending forming, larger bent pipes with more specifications and sizes can be formed on machine tool equipment with limited specifications, the cost of the machine tool equipment is saved, and the production efficiency of the bent pipe is improved.

The invention provides a cable laying management method and system for communication construction, and relates to the technical field of cable laying, and the method comprises the steps: obtaining cable laying space features and a target coverage area, carrying out the installation relevance and construction constraint analysis of communication construction materials, and constructing a material laying feature network. Cable laying space characteristics and a target coverage range are used as search constraints, and material setting and positioning, cable bending radius and tension control and path planning search optimization are carried out according to a design target and construction requirements, so that cable laying management target parameters are obtained; according to the cable laying management target parameters, matching tracking is carried out on the whole period of cable laying construction, laying management information is fed back, the technical problems of low construction efficiency, high cost and difficulty in coping with complex construction environments caused by insufficient flexibility and untimely feedback of cable laying management are solved, and the purposes of improving the construction efficiency and precision and reducing the construction cost are achieved. And the cost is reduced, and the method effectively adapts to complex construction environments.

The invention belongs to the technical field of data cable straightening, and particularly relates to a cable self-adaptive adjusting mechanism which comprises a pay-off device, a first cable inlet angle adjusting mechanism is installed on the upper side of the right end of the pay-off device, and the first cable inlet angle adjusting mechanism is used for adjusting the angle of a pay-off data cable and detecting the surface flatness of the cable. The right end of the first wire inlet angle adjusting mechanism is provided with a second wire inlet angle adjusting mechanism, the right end of the second wire inlet angle adjusting mechanism is provided with a third wire inlet angle adjusting mechanism, the right end of the third wire inlet angle adjusting mechanism is provided with a position adjusting mechanism, and the right end of the position adjusting mechanism is provided with a wire take-up device. The device can be dynamically attached to the bending radian of the cable, rigid extrusion is avoided, pressure is evenly distributed in the circumferential direction of the cable during contact, local abrasion is reduced, and meanwhile self-adaptive wrapping straightening is achieved through flexible pressing.

The invention discloses a BIM-based cable construction method. The method comprises the steps of obtaining BIM model data including a cable design path, a design bending radius and design stress; in the cable laying process, the optical fiber sensors are tightly attached and fixed to the surface of an outer sheath of the cable to be laid, and the optical fiber sensors are continuously distributed in the length direction of the cable; acquiring actual strain distribution data and actual bending radius distribution data of the cable measured by the optical fiber sensor in real time, and performing spatial position correlation comparison with design stress data and design bending radius data in the BIM model; if the actual strain value of any position point exceeds the strain threshold range corresponding to the design stress or the actual bending radius value is smaller than the design bending radius value, it is judged that construction deviation exists in the position point; and generating an adjustment instruction for subsequent cable laying operation based on the position point information with the construction deviation. The cable laying precision and the construction safety can be effectively improved.

The invention provides a metal hose bending test device which solves the problems that an existing hose bending test device is difficult to control the bending angle and radius of a to-be-tested hose and is difficult to detect the bending performance of hoses with different lengths and pipe diameters. According to the technical scheme, a transverse clamp is composed of sliding clamp supporting bases which are symmetrically arranged at the two ends of a transverse rail and driven by an automatic rod pushing device, an electric moving platform of an angle limiting device is provided with a sleeve type push plate through a support, and the sleeve type push plate is formed by assembling a plurality of coaxial cylinders which are enlarged layer by layer from inside to outside; the axial direction of the cylinders is the same as the moving direction of the electric moving platform, electric cylinders used for pushing the multiple sets of cylinders respectively are arranged on the rear portion of the sleeve type push plate, and the electric moving platform is provided with a baffle used for limiting the hose. The flexible pipe bending device can adjust and control the bending radius and angle of a flexible pipe, adapts to detection of flexible pipes with different lengths and pipe diameter specifications, is simple in structure and outstanding in flexible pipe bending test capability, and improves the accuracy of a test result.

The invention relates to an experimental device and method for testing the comprehensive mechanical property of a slender flexible cable, and belongs to the technical field of ocean engineering testing. The device comprises a main body frame, a tensile loading device, a bending load loading device and a torsional load loading device. The tensile loading device is not directly connected with the main body frame and is directly connected with the end part of the cable during an experiment. Through a modular integrated design, multi-axis coupling cooperative loading of stretching, bending and twisting is realized; a stretching actuator provides axial tension; the four-point bending actuator drives the slide rail and the roller to realize dynamic bending, and the bending radius is adjustable; the torsion actuator converts linear motion into torque through a gear-rack mechanism, and the supporting rollers eliminate axial interference. The device has the functions of pressure self-adaptive control and energy recovery. The device solves the problem that a traditional testing machine cannot simulate complex ocean working conditions, and is suitable for comprehensive mechanical property evaluation of flexible pipe cables such as submarine cables.

The invention relates to a cable bending radius determination method and device and computer equipment. The method comprises the steps of obtaining a plurality of cable sub-images in an original cable image based on the original cable image of a to-be-detected cable, performing center line fitting on cable sections in the cable sub-images, obtaining position information of effective center points in the cable sections, determining bending radiuses of the cable sections according to the position information of the effective center points in the cable sections, and determining the bending radiuses of the cable sections according to the bending radiuses of the cable sections. Wherein different cable sub-images comprise different cable sections in the to-be-detected cable. By adopting the method, manual participation is not needed, so that the determination efficiency of the bending radius of the cable can be improved, the determination accuracy of the bending radius of the cable can be improved, manpower resources required in the determination process can be reduced, and the manpower resource cost is reduced.

The invention relates to the technical field of vehicles, and provides a pipeline harness guiding and fixing structure and a design method thereof, and the method comprises the steps: constructing original data through first simulation software; the original data comprises pipeline harness peripheral structure data; determining a key part of the pipeline harness based on the original data and pre-obtained pipeline harness basic data; on the basis of the determined key parts of the pipeline harness and the basic data of the pipeline harness, carrying out shape-following design and simulation analysis on the pipeline harness to obtain first guiding data of the pipeline harness; the first guiding data at least comprises a space path of the pipeline harness, bending radius data and structural data of a pipeline harness guiding and fixing structure; and based on the first guiding data of the pipeline harness, constructing an initial model of the pipeline harness fixing structure through finite element simulation software, performing analysis and post-processing, and outputting target data of the optimized pipeline harness fixing structure. The interference abrasion risk of the pipe bundle and the wire harness is reduced, and stable operation of the pipe harness under the complex working condition is guaranteed.

The utility model discloses a pipe fitting clamping mechanism of a pipe bending machine. The pipe fitting clamping mechanism comprises a base, a rotating shaft is arranged on the base, a working table is connected to the rotating shaft in a rotating mode, an installation frame is arranged on the base, a telescopic rod is arranged on the installation frame, a core rod is arranged at the output end of the telescopic rod, a wheel die is arranged on the rotating shaft, and the working table is connected with the wheel die in a rotating mode. A wheel die is arranged on the workbench, an anti-wrinkling die is fixedly connected to the wheel die, a splicing block is arranged on the wheel die, a guide die is buckled on the anti-wrinkling die, a clamping die is buckled on the splicing block, a supporting frame is arranged on the workbench, and a clamping assembly is arranged on the supporting frame. The clamping assembly and the core rod are arranged on the supporting frame and the base respectively, the inner diameters of the two ends of the pipe are supported at the same time, the stability of the pipe is improved, the bending radius of the pipe is increased, the deformation amount of the pipe in the bending process is effectively reduced, and the defects of distortion, creases and the like caused by uneven stress of a pipe opening are overcome.

ProblemTo provide a laminate that can exhibit sufficient bendability without using a compound corresponding to a PFAS.SolutionThe laminate of the present disclosure includes a substrate and a hard coat layer laminated on at least one surface of the substrate. The hard coat layer contains no compound corresponding to a PFAS. The laminate of the present disclosure is further characterized in that a minimum bendable radius is equal to or less than 5 mm in a cylindrical mandrel test in which the laminate is bent with a surface of the hard coat layer of the laminate being convex. In addition, in a bending durability test of the hard coat layer, the number of operations until a crack occurs in the hard coat layer is preferably 10000 or more.

The invention provides a Cu-Fe-Mn-P series alloy material, which contains 0.15 to 0.50 percent by weight of Fe, 0.15 to 0.50 percent by weight of Mn and 0.05 to 0.30 percent by weight of P, and further contains one or more of Ni, Mg, Cr, Sn, Zn, Zr, Ag, Ti and lanthanide series rare earth elements. The total amount of the Cu and the unavoidable impurities is 0.15 wt% or less, and the Cu and the unavoidable impurities meet the component proportional relation of the following formulas (1), (2) and (3): {Fe} + {Mn} + {P} is less than or equal to 1.0% (1); (2) 0.5 < = {Fe} / {Mn} < = 2.0; 2.0 < = ({Fe} + {Mn}) / {P} < = 5.0 (3); the Cu-Fe-Mn-P alloy material has good bending processability that the ratio R / t of the minimum bending radius to the plate thickness is smaller than 2.0, and the heat-resistant temperature is larger than or equal to 500 DEG C. The composite material can be used in the field of wide characteristic requirements of the electric conductivity of 60-90% IACS and the corresponding tensile strength of 800-600 MPa.

The invention discloses a cable bending radius measuring device and measuring method, the measuring device comprises a measuring plate, and at least one side edge of the measuring plate is an arc-shaped bending edge; a wire diameter mark is arranged on one side of the arc-shaped bent edge of the measuring plate, and the wire diameter mark is used for marking the cross sectional area of the cable; the bending radius of the arc-shaped bending edge is set to be the minimum bending radius of the cable with the cross sectional area; the cable bending radius measuring device can replace visual observation or a ruler to measure the bending radius of a cable, the measuring accuracy and efficiency are improved, the bending radius of the cable is prevented from being smaller than the required minimum bending radius, and therefore it is guaranteed that the bending radius of the cable meets the requirement, and safe use of the cable is facilitated.

The utility model discloses a split type push-bending forming device which comprises a die body and a bending module, the die body is provided with a containing groove, the die body is provided with an input section and an output section, and the containing groove is respectively communicated with the input section and the output section. The bending module is detachably arranged in the containing groove, the bending module is provided with a bending section, the input section, the bending section and the output section are sequentially communicated to form a forming cavity, and the mold body is used for being matched with the bending radiuses of the bending sections of different bending modules. According to the device, a large amount of labor cost and time cost can be saved, due to the fact that only bending modules with different bending radiuses need to be machined and replaced for installation, the situation that the whole push-bending die with different bending radiuses is redesigned and machined is avoided, and a large amount of economic cost is further saved.

The invention discloses a multi-purpose elbow workpiece machining clamp, which belongs to the field of machining clamps, and comprises a main mounting plate, an auxiliary mounting plate, a first main clamping arm, a first auxiliary clamping arm, a second main clamping arm and a second auxiliary clamping arm, the first auxiliary clamping arm and the second auxiliary clamping arm are rotationally connected to the auxiliary mounting plate through an auxiliary rotating shaft, and the main mounting plate and the auxiliary mounting plate are driven to oppositely and synchronously slide, so that a first main clamping plate on the first main clamping arm and a first auxiliary clamping plate on the first auxiliary clamping arm oppositely clamp the first end part of the elbow; a second main clamping plate on the second main clamping arm and a second auxiliary clamping plate on the second auxiliary clamping arm oppositely clamp the second end of the elbow, the machining clamp can be suitable for elbows with different pipe diameters, bending radiuses and bending angles, and the double-acting air cylinder on the main mounting plate can drive the elbows to automatically turn over. The two ends of the elbow can be machined through one-time clamping.

The invention relates to the technical field of bending, and provides an aluminum alloy plate integrated bending forming device for the aviation industry, which comprises a bearing rack, a first bending die, second bending dies, a conveying part, a first stamping bending part and a second stamping bending part, the end of the second bending die is provided with a limiting inclined face and a bending fillet, the limiting inclined face is provided with an adsorption hole, the two sets of conveying pieces are symmetrically arranged on the two sides of the first bending die, and a plurality of sets of Y-direction limiting plates are arranged on the surfaces of the conveying pieces. By combining the step-by-step actions of the first stamping and bending part and the second stamping and bending part, the problem that an aluminum alloy plate is prone to springback or cracking due to traditional single-time bending is solved, the problem that the plate is prone to deviation or low in positioning precision in the traditional step-by-step bending process is solved, and the beneficial effect of being high in bending precision is achieved.

To provide a close-contact bending method to be performed on a copper plate member capable of providing a good appearance on an outer surface side of a bent part.SOLUTION: A method for close-contact bending a copper plate member having a thickness of 0.3 mm or less comprises a 180-degree bending step of folding back a folding-back piece of the copper plate member at 180 degrees with respect to a body part of the copper plate member at a bending part so as to bring the folding-back piece into tight-contact with the body part. Therein, when a thickness is t, and an outer bending radius being a radius on an outer surface side of the bending part after a 180-degree bending step is R180, a ratio R180 / t of the outer bending radius to a plate thickness is equal to or greater than a threshold value that is determined, on the basis of a work hardening factor of a copper plate member, for each material of the copper plate. When the work hardening coefficient of the copper plate member is defined to be n, the threshold value is determined according to a linear expression related to the work hardening coefficient n: A×n+B.SELECTED DRAWING: Figure 5

The invention relates to the technical field of numerical control machining, in particular to a numerical control bending control method, device and system for a copper bar. According to the method, a basic logic formula between the springback angle and the designed bending angle and a basic logic formula between the designed bending radius and the designed material thickness at each bending point position are built; the influence of the bending radius and the material thickness on the springback angle is analyzed, and the basic logic formula is corrected for the first time; the influence of the bending angle on the springback angle is analyzed, and secondary correction is conducted on the basic logic formula; and finally, the actual rebound angle is obtained, and bending of the copper bar workpiece is completed. According to the method, the springback amount is predicted in advance, and the compensation strategy is designed in a targeted mode, so that the number of times of trial bending is reduced, technological parameters are optimized, the machining precision is improved, and reworking or waste caused by springback out-of-tolerance is avoided.

The utility model relates to the field of pipe bending forming, in particular to a large-bending-radius and large-bending-angle pipe bending forming device. The device comprises a bending disc mold, an upper mold cover, a clamp, a limiting mold, a clamp baffle, a holder, a base, a roller conveying table, a motor, a speed reducer, an inner gear, a straight gear, a chain, a chain gear, a fixing shaft, a bearing, a bearing cover, an operation table and the like. One end of a pipe is fixed to a cavity where an inner edge end cover of a bending disc mold is matched with an upper mold cover, a limiting mold is moved to the inner edge end cover of the bending disc mold through a chain, a groove of the limiting mold is tightly attached to the pipe, then the limiting mold is clamped through a clamp on a holder, and a motor is started through an operation table to drive the bending disc mold to rotate and the limiting mold to move; and after reaching the preset position, the pipe is bent into a target part. The pipe bending machine is simple in structure, convenient to operate, high in production efficiency and suitable for pipe bending products with large bending radiuses and large bending angles, and the application range of traditional pipe bending equipment is expanded.

A high strength J-bolt for a saddle-mount is provided for use in attaching the saddle-mount to an axle of a vehicle. The high strength J-bolt can include a round distal end, a tapered and / or round mid-section, and a hook end with a specified inside bend radius and cross-sectional shape configured to accommodate an increased range of axle sizes. A D-shaped cross-sectional shape can be formed for the hook end to provide for increased contact area with the axle, a larger cross-sectional area, and a higher section modulus along a critical bending axis as compared to a non-critical bending axis to maximize a clamping force that can be applied to the axle and militate against mechanical failure of the high strength J-bolt. A hot forging process can be used to form the shape of the high strength J-bolt.

The utility model discloses a bending test jig for a semi-soft board. The bending test jig comprises a base; the bending template is fixedly connected with the base and comprises an arc part, a first positioning wall and a second positioning wall, the arc part is located at the end of the bending template, the radius of the arc part is equal to the bending radius of the semi-soft plate, the first positioning wall and the second positioning wall are oppositely arranged, and the two sides of the arc part are connected with the first positioning wall and the second positioning wall respectively. Under the assistance of the test jig, a tester can stably keep the required bending radius when bending test is carried out on the semi-soft board; moreover, the board surfaces on the two sides of the bending area are tightly attached to the first positioning wall and the second positioning wall respectively, so that the required bending angle can be stably kept when the bending test is carried out on the semi-flexible board. And during measurement, the semi-flexible board can be ensured to be always in a constant bending radius and a constant bending angle, so that a tester can quickly judge the qualification of the bending performance of the semi-flexible board.

The application relates to the technical field of fiber direction simulation, in particular to a composite material fiber direction simulation modeling method and system. The method comprises the following steps: collecting a fiber laying track, correcting the bending radius and unit tangent direction of a path point, and obtaining a fiber laying corrected track; constructing a first direction distribution map according to the tangent direction of each path point in the fiber laying corrected track; analyzing the coverage range of each path in the first direction distribution map on a component curved surface, identifying a curved surface overlapping and crossing area, and calculating an included angle adjustment amount of a direction vector; dividing the first direction distribution map into finite volume units, so as to obtain a second direction distribution map; and performing fiber direction simulation verification according to the second direction distribution map and in combination with preset material anisotropy properties, so as to obtain a fiber direction simulation result. The application is helpful to improve the spatial accuracy of fiber direction modeling and the consistency of simulation prediction.

The invention discloses a submarine cable line type identification and control method, and belongs to the field of submarine cable laying. The method comprises the following steps: establishing a catenary equation of the submarine cable between a point (point A) where the submarine cable is separated from a bearing turntable and a contact point (point B) at the end part of an untwisting frame according to the bending rigidity EI and linear density rho of the submarine cable, and determining the allowable minimum bending radius Rmin of the submarine cable and the maximum bending radius Rmax of the submarine cable; the method comprises the steps of determining the height difference of a submarine cable or a submarine cable section, calculating the horizontal distance Mmin and Mmax of a point A and a point B corresponding to Rmin and Rmax according to a catenary equation, dividing a set (Mmin and Mmax) into three subsets, and controlling the rotating speed of a bearing turntable according to the relation between the horizontal distance M of the point A and the point B measured in real time and the three subsets so as to enable the rotating speed to be matched with the cable laying speed of a cable laying machine. The method has the advantages that the submarine cable regulation and control speed is high, and the matching effect of the submarine cable output speed of the bearing turntable and the cable laying speed of the cable laying machine is good.

The present invention relates to the technical field of power cables, and specifically to a bending-resistant medium-voltage power cable, wherein a plurality of cable cores are installed at equal angles inside the outer sheath along the circumferential direction, a plurality of support pads are evenly and equidistantly installed inside the outer sheath, a protective tube is installed in the middle of the side end face of the support pad, a plurality of convex plates are installed at equal angles along the circumferential direction on the edge of the side end face of the support pad, and a plurality of concave plates are evenly and equidistantly installed on the side end face of the convex plate. The present invention can achieve equal unloading of external bending stress and external impact pressure, and realize internal and external double pressure relief, so that the stress borne by various parts of the cable is more balanced, and can dynamically adjust the minimum bending radius of the cable, so as to realize comprehensive adjustment of the bending toughness and bending flexibility of the cable, effectively take into account the needs of different usage scenarios, and improve the application flexibility of the cable while improving the effective utilization rate of the internal load pressure of the cable, thereby increasing the effective service life of the cable.

The invention discloses a wire outlet hole piece capable of reducing wire loss, and belongs to the field of wire outlet hole pieces. Comprising a hollow pipe, an arc-shaped bent part is integrally formed on the lower surface of the hollow pipe, a plurality of through type round holes are formed in the outer side wall of the arc-shaped bent part, and arc-shaped plates are arranged on the outer side wall of the arc-shaped bent part and located above the round holes; the easy-to-pull carton has the advantages that the defects of a traditional easy-to-pull carton outlet mode are effectively overcome through innovative design, when a wire is pulled out in a traditional straight cylinder mode, the wire is frequently folded to 90 degrees, communication wire signal interference is likely to be caused, and a copper wire is even pulled apart in the serious situation; the arc-shaped bending piece integrally formed on the lower surface of the hollow pipe in the wire outlet hole piece meets the requirement that the bending radius of the network wire is not smaller than 8 times of the diameter of the wire rod, so that the wire rod always keeps a reasonable bending radian in the pulling-out process, and the 90-degree hard bending condition is avoided.

To provide a manufacturing method for a press-formed product that is able to properly perform press forming while reducing a bending radius, and to provide the others.SOLUTION: A manufacturing method for a press-formed product P includes: an intermediate product preparing step (step S10) of preparing an intermediate product P1; a placing step (step S20) of placing the intermediate product P1 on a second lower die 21 in which a second shoulder portion 21c is formed with a curvature radius RC2 smaller than a bending radius RB1 of a first bent portion 80; a sandwiching step (step S30) of lowering an upper die 22 including an upper-die shoulder portion 22c with respect to the second lower die 21, sandwiching a side plate 82 of the intermediate product P1 between a side surface 21b and an upper-die recessed-portion side surface 22b, and restraining a bottom plate 81 in a direction along the bottom plate 81; and a press-forming step (step S40) of lowering the upper die 22 to press-form the intermediate product P1.SELECTED DRAWING: Figure 3