296 results about "Thin wire" patented technology

Provided is a pigment dispersion composition for a black matrix, the pigment dispersion composition having excellent storage stability and being capable of suppressing a decrease in the OD value (optical concentration) during a stand-by time between application of a resist to a substrate and pre-baking, and the resulting resist film having excellent thin wire adhesion. The pigment dispersion composition for a black matrix comprises lactam black, silica-based particles, a pigment dispersant containing a basic group, and an alkali-soluble resin, and satisfies at least one of the following conditions A and B. (Condition A) No carbon black is included. (Condition B) Carbon black is included, and the average primary particle diameter of the carbon black is 30 nm or more.

The invention relates to a high-strength tungsten alloy ultra-fine wire drawing device, comprising a traction structure and a drawing structure, wherein the traction structure comprises an inner winding piston, an outer electromagnetic coil, a linear guide rail and a clamp; the drawing structure comprises a clamping jaw, an electromagnetic valve and an eye mold; the inner winding piston and the outer electromagnetic coil are both sleeved on the linear guide rail, and the outer electromagnetic coil is sleeved on the outside of the inner winding piston, and the outer electromagnetic coil is fixed on the linear guide rail through a clamp, and the inner winding piston is provided with an inner electromagnetic coil; the eye mold is arranged on one side of the linear guide rail, the clamping jaw is fixedly installed on the inner winding piston, and the clamping jaw is connected to the electromagnetic valve, the tungsten wire is fixedly clamped by the clamping jaw after passing through the eye mold, and the opening and closing of the clamping jaw is controlled by the electromagnetic valve. The purpose of the invention is to provide a high-strength tungsten alloy ultra-fine wire drawing device, aiming at the existing technology of online heating tower wheel type slip differential drawing, and solving the defect caused by the sliding friction between the tower wheel and the metal filament in the tower wheel type slip differential drawing.

The invention is suitable for the technical field of alloy wire machining, and provides an alloy wire straightening and cutting-off treatment device and a working method thereof.The alloy wire straightening and cutting-off treatment device comprises a working frame, a shape righting assembly installed at the top of the working frame, a material pouring assembly and a guiding assembly, and the guiding assembly is located between the shape righting assembly and the material pouring assembly; the device comprises a guiding assembly, a material pouring assembly and a shape righting assembly, the top of the guiding assembly is provided with a traction assembly, the traction assembly extends to the position above the material pouring assembly, and the top of the shape righting assembly is provided with a cutting assembly. According to the device, an electric sliding rail is used for driving a grabbing mechanism to move, a clamping air cylinder clamps an alloy wire, the grabbing mechanism integrally moves to complete traction, and the alloy wire is pulled to a certain length to be cut off; and the alloy wire is prevented from drooping and being bent due to friction with the pouring plate.

This spring member includes a first surface and a second surface opposite to the first surface, and includes three or more thin wires in a cross section orthogonal to the first surface. Among the thin wires, the thin wires positioned at both ends are outer thin wires, and the thin wire between the outer thin wires is an inner thin wire. The inner thin wire has a width of 10 μm or more at the first surface and the second surface. At the first surface and the second surface, the outer thin wires have a width that is greater than the width of the inner thin wire by 2 μm to 8 μm.

The utility model relates to a wire drawing system with pay-off power, which comprises a pay-off machine, a wire drawing machine and a take-up machine, the pay-off machine comprises a rack adjustably arranged on one side wall of the wire drawing machine, and a pay-off device, a guide device and a tension device which are arranged on the rack; the pay-off device comprises a pay-off motor and a clamping mechanism, and a pay-off wheel wound with a wire is detachably arranged on the clamping mechanism; the guide device comprises a guide piece I with a guide wheel and a guide piece II with two guide wheels; the tension device comprises a tension wheel arranged on the rack in an up-down swinging mode and a sensor used for monitoring the swinging angle of the tension wheel. And a wire on the pay-off wheel is led out to sequentially wind the guide wheel on the first guide piece, one guide wheel on the second guide piece, the tension wheel, the other guide wheel on the second guide piece and the other guide wheel, and then is led into the wire drawing machine. According to the utility model, active pay-off can be realized, and the pay-off machine, the wire drawing machine and the take-up machine are linked and matched, so that stable drawing of superfine wires can be realized.

Provided is an antenna where low transmission loss and visibility are simultaneously achieved. The antenna includes: a transparent film substrate; an antenna element that is provided on one surface among two surfaces of the transparent film substrate; and a ground part that is provided on the other surface among the two surfaces of the transparent film substrate. The antenna element and the ground part are formed of a mesh pattern formed of a fine silver wire, and a line width of the fine wire is 1.0 μm or more and less than 5.0 μm. A thickness of the transparent film substrate is 30 μm or more and 300 μm or less.

The utility model discloses a copper fine wire storage detachable device, which comprises a disc base, an outer frame and an inner core, the outer frame comprises a first semicircular frame, the first semicircular frame is fixedly arranged at the top of the disc base, one side of the first semicircular frame is hinged with a second semicircular frame through a hinge, and the second semicircular frame is fixedly arranged on the disc base. Through cooperative use of the disc base, the outer frame and the inner core, the outer frame can be fixed on the disc base and can be detached, a copper wire falls on the disc base when being stretched at a high speed, the copper wire is prevented from inclining, and fine copper wires are uniformly cylindrical in the outer frame; the wire storage device is suitable for wire storage after the copper wire is stretched, compared with a fixed wire storage device, the effect is more remarkable, repeated work of vertical lifting of a fixed material frame is reduced through manual disassembly, the surface of the copper wire is brighter, bumping and scratching generated on the inner side of the material frame are eliminated, meanwhile, the copper wire is convenient to lift, and the service life of the copper wire is prolonged. And the working efficiency can be further improved.

The invention provides a method for improving the fineness of a laser activation selective metallization fine line by using a water layer. The invention belongs to the field of laser activation selective metallization, and particularly relates to a method for improving the fineness of a metal layer through a water layer in the laser activation selective metallization machining process. The inventor finds that the surface of the selective metallization composite material capable of being activated by laser is covered with a horizontal hydrostatic layer, so that activated thin wires with the fineness degree superior to the line width limit in an air medium can be activated on the composite material containing a laser sensitizer by laser, and chemical copper plating with a good effect can be carried out on the surface of an activated area. The metal fine wire with the wire width of 55-60 microns is obtained by covering the composite material base material with the horizontal static water layer. Compared with a traditional air medium processing method, the method breaks through the limit of coating fineness of laser selective activation processing under an air medium, and the obtained coating is very excellent in thickness and strength. The method has the advantages of low cost, convenience in manufacturing, easiness in large-scale use and excellent industrial application value.

The invention discloses a winding method and device for a coil with a small wire diameter and a small inner diameter. The method comprises the following steps: S1, determining various parameters of a wound coil, and selecting a proper winding shaft and a proper coil framework; s2, adjusting an adjusting knob of each module; s3, the winding shaft is inserted into the coil framework, and the winding shaft and the coil framework are fixed; s4, enabling the enameled wire to pass through the winding displacement pipe, and then fixing the enameled wire on the coil framework; s5, resetting the wire arranging device; s6, setting the parameters in the S1; s7, the machine is started, the rotating main shaft does rotating motion, the wire arranging shaft does axial translation motion, and a layer is wound; s8, brushing a layer of metal glue on the wound layer of coil; s9, judging whether the number of turns of the wound coils is sufficient or not, if not, repeating the steps S7 and S8, and if yes, completing winding; and S10, after winding is completed, the coil framework and the coil are taken down. The device comprises a base, a wire arranging mechanism, a rotating mechanism and a framework platform mechanism. The method and the device can be used for directly producing the coil according to each parameter and manufacturing the high-precision coil, so that the coil can continuously operate for a long time.

The utility model discloses a rigid body rotational inertia experiment testing device, which relates to the technical field of mechanical experiment devices, and comprises a fixed base, a fixed support fixedly arranged at the center of the top of the fixed base, photoelectric doors symmetrically arranged on the fixed support, and a rotating shaft rotationally arranged at the center of the bottom of the fixed support. The top of the rotating shaft is detachably connected with a rotating bearing structure, the rotating bearing structure is in an inverted circular truncated cone shape, shading rods are symmetrically arranged on the edge of the peripheral wall of the rotating bearing structure, the shading rods are matched with a photoelectric door, and the photoelectric door is connected with a testing mechanism through a wire; a driving guide structure is arranged on the top edge of the fixed base, a winding guide structure is fixedly arranged on the outer wall of the rotating shaft, one end of the thin wire is wound on the winding guide structure, and the other end penetrates through the driving guide structure and is connected with a weight. According to the utility model, the probability that the center of mass coincides with the geometric center is greatly improved by the rotary bearing structure in the shape of the inverted circular truncated cone, so that the vibration phenomenon is avoided; and the winding guide structure prevents the thin wires from overlapping.

According to one aspect, the present invention provides a transpiration measurement device with which it is possible to easily measure transpiration speed and transpiration amount from a state in which substantially no transpiration occurs to a state in which a large amount of moisture is released or a large amount of droplets are generated in a supersaturated environment in which relative humidity exceeds 100%. A transpiration measurement device according to an embodiment of the present invention comprises a sensor having a structure in which first thin wire electrodes composed of a material containing a first metal and / or carbon and second thin wire electrodes composed of a material containing a second metal different from the first metal are alternately arranged in at least a partial region on a substrate in which at least the surface thereof has insulating properties. The transpiration measurement device is configured to measure a current flowing between the first and second thin wire electrodes.

The utility model provides an interactive experience device for displaying the position change of the north pole point of the earth, which comprises a pole point detection device, a display, a control computer, a plurality of electromagnets and a north region map carrier, the control computer comprises a touch screen and a computer electrically connected with the touch screen, the computer is in communication connection with the display and the lower computer, the lower computer is electrically connected with the plurality of coil switches, the plurality of coil switches are respectively and electrically connected with the plurality of electromagnets, and the magnetic pole point detection device comprises a shell and a plurality of groups of fine line suspended magnetic needles arranged in the shell. The process that scientists calibrate magnetic pole points in different years is simulated in a mode of combining electromechanical control with multimedia, so that audiences know that the magnetic pole points change continuously along with time; the exploration process that an explorer finds a north pole magnetic pole point for the first time is restored, a fine line hanging magnetic needle device is designed and used for positioning the magnetic pole point, and the interactive experience feeling of the public is improved.

Flexible seal assemblies having a relatively low torsional rigidity and high longitudinal flexure to thereby allow the flexible seal assembly to flex between adjacent components and maintain a seal, even when movement between adjacent components occurs, is described. In some embodiments, the flexible seal assembly includes one or more layers of metal matrix material, the metal matrix material being comprised of a plurality of short segments of thin wire arranged randomly and sintered together to form a semi-rigid sheet. The one or more layers of metal matrix material can be sandwiched between an upper casing and a lower casing of a metal alloy casing. In various embodiments, additional features are provided for helping to make sure the seal assembly stays together, such as spot welds formed through the seal assembly, an S-shaped casing, and a recess / protrusion feature provided on adjacent layers of metal matrix material.

1. The name of the design product: screwdriver. 2. The use of the design product: screwdriver for fastening or disassembling screws, the groove of the screwdriver head is also used to press small objects such as thin wires, thin nails, etc. in narrow gaps (such as ceramic tile joints, brick joints). 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: assembly state perspective view. 5. Other circumstances that need to be explained: A enlarged view is a partial enlarged view of component 2.

The present application discloses a device for measuring respiratory status in real time and its measuring method, characterized in that, including a main unit and a cable, a cable pulley is provided in the main unit, one end of the cable is wound around the cable pulley and the other end is fixed, a spring is provided between the cable pulley and the central rotating shaft, the spring provides a tightening torque to keep the cable pulley in a taut state, and an angle sensor and a signal collector are also provided in the main unit; the cable pulley is set as an inelastic thin wire, is worn around the human chest or abdomen, and the human body breathes to bring about a change in the outline of the body, and the cable pulley rotates with the change in the outline of the body, the angle sensor measures the angle of rotation of the cable pulley, and the signal collector collects and measures the measurement signal. Using the device provided by the present application, the changes in the outline of the body brought about by breathing can be monitored, and it can be used for respiratory training and can also be used for respiratory monitoring in daily life.

To provide an auxiliary tool that can be used on wooden floors, allows an entire adhesive surface to be used without waste, and can be used repeatedly even after exposing a new adhesive surface.SOLUTION: A thin and firm wire mesh in a planar or cylindrical form with as large holes as possible to be used as a cover for an adhesive roller is made by weaving thin wires, etching a thin metal plate, or the like. When attached to an ordinary adhesive roller, it can be used even on wooden floors. After a certain amount of debris adheres to it, the cover can be removed to use the entire adhesive surface. Even when a new adhesive surface of the adhesive roller is exposed, the cover can be reattached and used repeatedly in the same way.SELECTED DRAWING: Figure 1

The invention relates to the field of aviation airborne electronic equipment repair, in particular to a ring frame static balance tool in the aviation horizon sensor repair process and a balance method of the ring frame static balance tool. The ring frame assembly is arranged on the supporting platform, fixed pulley devices are arranged at the two ends of the ring frame assembly, and the weights are connected with the ring frame assembly through thin wires. The balancing method comprises the following specific steps that 1, a workpiece is taken; step 2, stopping; step 3, locking the pitching ring; step 4, keeping horizontal; step 5, adjusting weights; step 6, weight balancing; step 7, error reduction; 8, the annular frame assembly is rotated by 90 degrees; step 9, locking the inner ring; and step 10, installing the ring stand assembly back to the aviation horizon sensor. Compared with the prior art, the static balance state is quantified, and the precision and reliability of static balance adjustment are guaranteed through static balance adjustment of two mutually perpendicular positions in the ring frame assembly.

The invention discloses a recycled carbon fiber continuous tow, a continuous roving preparation method and application. The continuous tow is formed by lapping and bonding a plurality of sections of original recycled carbon fiber tows with finite lengths after the end parts are thinned. The method for preparing the continuous roving comprises the following steps of: thinning the end part of the recycled carbon fiber tow with finite length, and overlapping and bonding to form a continuous tow; and plying (optional) and binding with spun yarns to obtain the continuous roving. According to the method, the problems that recycled carbon fibers cannot be continuous, the linear density is uncontrollable and the manufacturability is poor are solved through unique thinning lap joint and fine line binding processes, and the prepared continuous roving has high linear density and good spreadability and shape follow-up performance, is particularly suitable for being used as a high-performance and low-cost reinforced filling material of a thick-wall composite material, and can be used for preparing the high-performance and low-cost reinforced filling material of the high-performance and low-cost reinforced filling material of the high-performance and low-cost reinforced filling material of the high-performance and low-cost reinforced filling material. The high-value application of the recycled carbon fibers is realized.

The utility model provides a rotatable square waterproof battery cover, and belongs to the field of battery covers, in order to solve the problem that a used sealing gasket is inconvenient to disassemble and replace conveniently, the rotatable square waterproof battery cover comprises a battery cover plate, a fixed box is fixedly connected to the battery cover plate, and the other end of a second spring is fixedly connected in the fixed box. The device is provided with a positioning plate; when a sealing gasket on a battery cover plate is replaced, a connecting sleeve can be rotated to drive a wire wheel to operate, when the wire wheel rotates, a thin wire is wound, meanwhile, the thin wire can pull a limiting plate to move, the limiting plate can extrude a first spring when moving, the limiting plate can drive a clamping block to be separated from a positioning plate, and the sealing gasket on the positioning plate can be detached and taken out; the sealing gasket can be replaced, the connecting sleeve can be loosened, the limiting plate and the clamping block are driven to reset under pushing of the first spring, the clamping block can be clamped in the positioning plate, the replaced sealing gasket is limited and fixed, and the efficiency of disassembling and replacing the sealing gasket is improved.

The object of the present invention is to provide a conductive film that has improved transparency due to thinning of metal wires and further improved mechanical properties, electrical properties, and optical properties, as well as a conductive film roll, electronic paper, touch panel, and flat panel display using the same. The conductive film of the present invention has a transparent substrate and a conductive portion including a metal wire pattern arranged on one or both sides of the transparent substrate. The metal wire pattern is composed of metal wires. The metal wires contain at least any of silicon atoms Si, oxygen atoms O, and carbon atoms C in addition to conductive metal atoms M. In STEM-EDX analysis of a cross section of the metal wire perpendicular to the extension direction of the metal wire, when the maximum thickness of the metal wire is recorded as T, the metal wire contains at least any of the aforementioned silicon atoms Si, oxygen atoms O, and carbon atoms C at a predetermined ratio relative to the thickness direction.

The invention discloses a gold label implant and positioning feature processing equipment thereof, and relates to the field of implantable medical instruments, a gold label is a cylinder, and the side wall of the gold label is provided with positioning features; positioning feature machining equipment comprises an electric spark machining device and a control piece. The control piece comprises a rotating assembly and a power connection assembly; the rotating assembly comprises a mounting frame, a motor arranged on the mounting frame, a first bevel gear connected with the motor, a second bevel gear meshed with the first bevel gear, a chuck piece fixed to the second bevel gear and a clamping piece arranged on the chuck piece. Positioning features are marked on the surface of the metal marker, friction force can be effectively increased, the implant is made of inert alloy materials and is easy to recognize and track, and conventional medical examination is not affected; the positioning feature machining equipment adopts electric spark machining, effectively fixes a gold-labeled raw material alloy thin wire, meanwhile, the gold-labeled raw material alloy thin wire is connected into an electrode, the rotating angle of the alloy wire can be controlled through a motor during machining, and positioning features are gradually punched on the side wall.

The utility model discloses a high-toughness and fracture-resistant PET (Polyethylene Terephthalate) protective film which comprises a film body assembly, the film body assembly comprises a film layer, the film layer comprises an upper film layer and a lower film layer, and a glue layer is filled between the upper film layer and the lower film layer; an inner stay wire is embedded in the glue layer; the inner pull wires are formed by spirally winding a plurality of strands of fine wires, and the inner pull wires are arranged in the glue layer in a net shape; according to the high-toughness and fracture-resistant PET protective film, the film body assembly is arranged, the upper film layer and the lower film layer are arranged in a double-layer mode, and the interior of the upper film layer and the interior of the lower film layer are filled with the inner pulling lines and the glue layers, so that the toughness and fracture resistance of the film layers in the using process can be improved; the eye protection plating layer is arranged at the top of the upper film layer, so that a better eye protection effect can be achieved; the wear-resistant layer is arranged at the bottom of the lower film layer, so that good wear-resistant usability can be achieved; therefore, the experience and effect of the film are improved, and convenience is provided for users.

The object of the present invention is to provide a conductive film that has improved transparency due to thinning of metal wires and further improved mechanical properties, electrical properties, and optical properties, as well as a conductive film roll, electronic paper, touch panel, and flat panel display using the same. The conductive film of the present invention has a transparent substrate and a conductive portion including a metal wire pattern arranged on one or both sides of the transparent substrate. The metal wire pattern is composed of metal wires. The metal wires contain at least any of silicon atoms Si, oxygen atoms O, and carbon atoms C in addition to conductive metal atoms M. In STEM-EDX analysis of a cross section of the metal wire perpendicular to the extension direction of the metal wire, when the maximum thickness of the metal wire is recorded as T, the metal wire contains at least any of the aforementioned silicon atoms Si, oxygen atoms O, and carbon atoms C at a predetermined ratio relative to the thickness direction.

A kind of diversified inclination monitoring device based on fiber grating strain, including adsorption component, strain monitoring component and light measuring component, strain monitoring component includes the shell with one end opening, monitoring disc is set on the inner side wall of shell, counterweight is slidably arranged on monitoring disc, thin wire connecting counterweight and adsorption component and fiber grating sensor being set on thin wire, shell open end is set on adsorption component;Light measuring component includes fan-shaped light measuring seat and luminosity measuring instrument, light measuring seat includes circular arc plate, two straight flat plates with common first side and being arranged at the both ends of circular arc plate, oppositely arranged light-emitting plate and light shielding plate, light shielding plate is rotatably arranged on first side, light-emitting plate is provided with lamp plate, light shielding plate is provided with photosensitive wall connected with luminosity measuring instrument, one of straight flat plates is arranged on the outer side wall of shell on the side of counterweight rotation direction.The present application has high measurement precision, and can be used to accurately measure and calculate horizontal inclination in dynamic change state.

The application discloses a kind of extremely thin wire core insulation layer insulation detection device and method, it includes detection support plate part and inspection presser plate part, loading unit is arranged between detection support plate part and inspection presser plate part, detection support plate part includes detection support plate and circuit board, at least one V-shaped groove is provided on detection support plate, second round through hole and third round through hole are provided in each V-shaped groove, first probe and second probe extending along Z axis are provided on circuit board, the diameter of first probe needle end is less than the outer diameter of insulation layer, the diameter of second probe needle end is greater than the outer diameter of wire core, when detecting extremely thin electric wire, first probe needle end contacts with the insulation layer of extremely thin electric wire, and second probe needle end contacts with the wire core of extremely thin electric wire.The application effectively improves the deficiencies of prior art, fills the gap of prior art, can greatly improve production efficiency, and further improves product quality.

The capillary wick comprises at least one layer of woven mesh core formed by weaving a plurality of capillary wefts and a plurality of capillary warps, and the density or diameter of the plurality of capillary wefts changes in a continuous or stepped mode in at least one direction. And the density or the diameter of the plurality of capillary warps is continuously or stepwise changed in the other direction forming angle distribution with the at least one direction. The novel wick structure has the advantages that the characteristics of different wick structures are combined through design, and two or more capillary wire diameters are combined to manufacture the novel wick structure, so that the problem of conflict between capillary performance and backflow resistance in the prior art is effectively solved; the comprehensive performance of the wick is effectively improved; strong capillary suction is realized in an evaporation section / a high heat flow area by utilizing a thin wire diameter structure, so that sufficient liquid supply is ensured, and drying is prevented; and in the condensation section / main backflow channel, a large-wire-diameter structure is used for greatly reducing the liquid flowing resistance, and working medium circulation is accelerated.

To provide an electric fusion joint capable of preventing occurrence of a kink even in a heating wire of which diameter is thin.SOLUTION: An electric fusion joint 1 includes a cylindrical part 11, a stopper part 12, side heating wires 31, 32 and a stopper heating wire 33. The cylindrical part 11 has joint socket parts 21, 22 into which a pipe including thermoplastic resin is inserted. The stopper part 12 is disposed on an inner surface of the cylindrical part 11 to expose inwardly, and when resin pipes 2, 3 are inserted to the inner sides of the joint socket parts 21, 22, regulates insertion positions of pipe ends of the resin pipes 2, 3. The side heating wires 31, 32 are disposed in the joint socket parts 21, 22. The stopper heating wire 33 is disposed in the stopper part 12. An angle in the circumferential direction between a first branch point P1 from the stopper heating wire 33 to the side heating wire 31 and a second branch point P2 from the side heating wire 31 to a pin 41b is in a range between -30° or larger and +30° or smaller.SELECTED DRAWING: Figure 4

This invention relates to the field of aluminum conductor wire research, specifically to a method for preparing ultra-high strength, high conductivity industrial pure aluminum fine wire. Pure aluminum ingots are sequentially subjected to forging, rolling, primary drawing, low-temperature annealing, and secondary drawing to obtain ultra-high strength, high conductivity industrial pure aluminum fine wire. This invention improves the strength of aluminum wire by controlling the grain size without changing the composition. This is mainly achieved through a process of two drawing stages, with low-temperature annealing performed between the primary and secondary drawing stages. This refines the radial grain size within the pure aluminum fine wire, thus increasing its strength. Compared to existing pure aluminum wires, the strength is significantly improved while maintaining the same conductivity, enhancing the service safety of the aluminum wire. Furthermore, this invention requires no additional alloying elements, resulting in significant advantages in low additional costs. The simple operation process facilitates industrial application.

The invention discloses a thin wire forming system. The thin wire forming system comprises an unwinding mechanism, a wire feeding mechanism, a wire drawing mechanism, a bending mechanism and a heating mechanism. The unwinding mechanism is used for releasing the filaments; the filament feeding mechanism is used for receiving and conveying filaments; the wire drawing mechanism comprises a wire drawing chuck, the wire drawing chuck is movably arranged to be close to or far away from the wire feeding mechanism, and the wire drawing chuck can clamp and release thin wires output by the wire feeding mechanism; the bending mechanism is used for bending the filaments pulled out by the wire drawing chuck; the heating mechanism is used for heating the filaments. The unwinding mechanism releases the thin wires, the wire feeding mechanism receives the thin wires and conveys the thin wires to the wire drawing chuck, the wire drawing chuck clamps the thin wires and then pulls the thin wires out by a certain distance, and after the heating mechanism heats the thin wires, the bending mechanism bends the pulled-out thin wires. Thus, the ductility of the filaments can be improved through heating before bending, the yield strength and residual stress are reduced, the filaments can be conveniently bent by a bending mechanism, and the rebound probability and the fracture probability are reduced.