1892 results about "Copper-wiring" patented technology

The invention provides a copper-steel composite heat pipe and a preparation method thereof, and relates to the technical field of heat pipes, the copper-steel composite heat pipe comprises a steel-copper composite pipe, and the steel-copper composite pipe is composed of a copper inner pipe and a steel outer pipe. An internal copper structure is arranged in the steel-copper composite pipe; the internal copper structure is copper powder or a copper wire mesh. The copper powder is unilateral copper powder or bilateral copper powder or ring copper powder; the copper wire mesh is a copper mesh, or a copper mesh and a copper wire capillary, or a copper wire capillary. The steel outer pipe is made of steel 316L, and the copper inner pipe is made of copper C1020. The copper-steel combined material is used, the cost is saved, and it is guaranteed that materials are saved in the whole heat dissipation field. The double-layer combination of the copper inner pipe (C1020, high heat conduction) and the steel outer pipe (316L, corrosion resistance and high strength) is adopted, the efficient heat conduction of copper is utilized, and the environment erosion resistance and mechanical impact resistance of steel are utilized, so that the heat pipe is adaptive to complex working conditions (such as industrial high-temperature, humid or corrosion risk scenes), and the service life of the heat pipe is prolonged.

The invention discloses a temperature and pressure sensor and a manufacturing method thereof, the temperature and pressure sensor comprises a support assembly formed by an inner support and a thermistor through an injection molding process, two pin copper wires of the thermistor are welded to an insertion piece of the inner support, and a plastic supporting structure wrapping the thermistor and the inner support is formed through injection molding; one end of a PIN needle of the terminal button is connected with an external plugging port; one end of a conductive circuit of the flexible wire board is respectively welded with the PIN of the ceramic capacitor and the insertion piece of the inner bracket, and the other end of the conductive circuit of the flexible wire board is welded with the other end of the PIN of the terminal button; a through hole is formed between the support assembly and the shell, a medium makes contact with the ceramic capacitor through the through hole, the ceramic capacitor transmits a pressure signal to the outside through the flexible wire board and the end button, the thermistor senses the temperature of the medium through the plastic supporting structure, and a temperature signal is transmitted to the outside through the inserting piece, the flexible wire board and the end button. The thermistor is effectively prevented from losing efficacy due to medium impact, and meanwhile, the structural process is relatively simple and easy to assemble.

The utility model belongs to the technical field of electromagnet coils, particularly relates to a magnetic suspension electromagnet coil, and aims to solve the problems that a coil with a large number of turns can generate a strong magnetic field under the same current, so that the coil with a large number of turns can be adopted to generate a strong and stable magnetic field, but the large number of turns can cause some problems. In order to solve the problems that the energy loss is further increased and even the coil is possibly damaged due to the fact that the resistance of the coil is increased and heating is increased, the utility model provides the following scheme: the coil comprises a hollow framework, a plurality of turns of coils are wound on the hollow framework, and a protective sleeve is wound on the whole outer wall of the plurality of turns of coils; and the outer wall of a single copper wire of the multi-turn coil is covered and sprayed with an insulating layer. When the magnetic suspension electromagnet coil is used, through the design of the protective sleeve, the ceramic insulating coating, the heat dissipation fins, the heat extraction fan, the heat dissipation holes and the like which are made of polyimide film materials, the heat dissipation efficiency and durability of the coil are effectively improved, and stable operation of a magnetic suspension electromagnet is ensured.

The utility model discloses a stator wire pressing device, which comprises a workbench and a wire body, the wire body is provided with a plurality of trays moving along the wire body, the upper side surface of each tray is provided with a wire plugging tool, the workbench is internally provided with two groups of jacking assemblies, the two groups of jacking assemblies are linearly arranged along the wire body and are positioned below the wire body, and the wire plugging tool is positioned below the wire body. The jacking assembly and the tray are located in the same vertical plane, a wire holding assembly used for fixing the end of a stator copper wire is arranged on the upper side face of the workbench, a wire pressing assembly used for pressing the stator copper wire downwards is arranged on one side of the wire holding assembly, and the wire pressing assembly is located on the upper side face of the workbench. The copper wire inserting tool has the advantages of limiting the pre-inserted copper wire and the wire inserting tool and preventing the copper wire from deviating.

The utility model discloses a multilayer composite enameled wire and a painting device thereof, the multilayer composite enameled wire comprises a copper wire core (1), the surface of the copper wire core (1) is provided with a primer layer (2), a middle layer (3) and a finishing coat layer (4) from inside to outside in sequence, the primer layer (2) is formed by compounding 12-14 high-toughness polyurethane layers with the same thickness, the thickness of the primer layer (2) is 12-28 microns, and the thickness of the finishing coat layer (4) is 12-28 microns. The middle layer (3) is formed by compounding 8-10 thermosetting resin layers with the same thickness, the thickness of the middle layer (3) is 8-20 microns, the finish paint layer (4) is formed by compounding 4-6 epoxy resin layers with the same thickness, and the thickness of the finish paint layer (4) is 4-12 microns; and the high-toughness polyurethane layer, the thermosetting resin layer and the epoxy resin layer are formed by independently baking. According to the utility model, the insulating property of the enameled wire can be improved, and the painting effect of the enameled wire is improved while the painting cost of the enameled wire is reduced.

The invention discloses a stator and rotor punching sheet and magnetic steel for a concentrated winding type frameless torque motor, and belongs to the technical field of concentrated winding type motors, the stator and rotor punching sheet comprises a rotor punching sheet, a stator punching sheet and magnetic steel, and the center of the rotor punching sheet is provided with a rotor iron core; the stator punching sheet is composed of yoke parts and tooth parts, the tooth parts are trapezoidal teeth, the tooth parts and the stator grooves are distributed at equal angles, the tooth parts and the stator grooves are alternately arranged, and the stator grooves are straight grooves; the inner side of the stator punching sheet is also provided with a rotor punching sheet and magnetic steel, the rotor punching sheet and the magnetic steel form a motor rotor, and the motor rotor is a surface-mounted rotor. According to the stator and rotor punching sheet and the magnetic steel for the concentrated winding type frameless torque motor, the winding grooves of the stator iron core are flat-bottom straight grooves, the flat copper wires are wound in the winding grooves, the flat wire coils are fixed to the tooth portions through glue, integral potting is carried out after fixing is completed, and compared with a traditional pear-shaped groove for containing round wire windings, the stator and rotor punching sheet is simple and firm in structure, high in groove fullness rate, high in motor efficiency and improved in stability.

The invention discloses a method for controlling CMP (chemical mechanical polishing) dish-shaped pits, corrosion pits and interface corrosion of ruthenium barrier layer copper wiring, which is suitable for a manufacturing process of integrated circuits of 14 nanometers and below. According to the method, a specifically synthesized TTAK corrosion inhibitor is introduced into a polishing solution system, the oriented adsorption characteristic of the molecular structure of the TTAK corrosion inhibitor is utilized, the corrosion reaction of copper is selectively inhibited, meanwhile, the normal material removal efficiency of a ruthenium barrier layer and a TEOS dielectric layer is maintained, and cooperative regulation and control of the removal rate of the Cu / Ru / TEOS material are achieved. By means of the method, dished pits, corrosion pits and Fang type interface defects generated in the fine polishing and barrier layer polishing process can be effectively eliminated, and copper / ruthenium interface corrosion is improved. According to the method, the global planarization quality of the copper interconnection ruthenium barrier layer is remarkably improved, the interface bonding strength and the electrical reliability of an interconnection circuit are enhanced, and an effective solution is provided for performance optimization of an advanced process integrated circuit device.

The invention provides a graphene composite copper wire and a preparation method thereof.The preparation method of the graphene composite copper wire comprises the steps that 1, a copper base material is provided; 2, the outer surface of the copper base material is coated with graphene dispersion liquid; 3, plating copper on the outer surface of the copper wire by using an electroplating method; 4, the step 2 and the step 3 are repeated for n times, and the graphene composite copper wire is obtained; the graphene composite copper wire comprises a copper base material and a plurality of composite layers wrapping the outer surface of the copper base material, and each composite layer comprises a graphene layer and a copper layer which are sequentially arranged from inside to outside in the radial direction of the copper wire. According to the graphene composite copper wire, the copper base material is treated through the electroplating method, the multiple composite layers formed by combining the copper and the graphene are formed on the surface of the copper base material, and the graphene composite copper wire is finally obtained, so that the conductivity of the copper can be improved, the technological process is simple, too many complicated steps are not needed, the preparation condition is simple, and the cost is low.

The invention relates to the technical field of copper wire drawing, in particular to metal bus production and processing equipment which comprises a positioning groove, a half die device, a copper wire, a temporary eye die and a liquid feeding device, the two half eye dies are spliced to form a main position eye die, and the copper wire penetrates through a middle hole of the main position eye die to achieve wire drawing. Lubricating cooling liquid is sprayed to a center hole of the main position hole die at a fixed point through the annular spray head, so that new lubricating cooling liquid can be accurately supplemented to a liquid consumption position, meanwhile, old lubricating cooling liquid is squeezed away, the two half hole dies are separated, and the temporary hole die plays a temporary wire drawing function; the brush roll assembly arranged for each half-hole die is used for cleaning, after cleaning is completed, the two half-hole dies are automatically spliced and combined, subsequent copper wire drawing work continues to be carried out, temporary wire drawing is maintained by the temporary hole die, therefore, the problem of chippings is relatively ignored, and the temporary hole die can be cleaned after the whole wire drawing work is completely completed.

The invention discloses a high-efficiency intelligent card wire end burying positioning and distance adjusting device, and relates to the technical field of integrated circuit manufacturing. The high-efficiency intelligent card wire end burying positioning and distance adjusting device comprises a fixed winding unit, a guide adjusting unit, a conveying unit and a wire burying unit; a guide adjusting unit is fixedly installed on the fixed winding unit, a conveying unit is fixedly installed on the guide adjusting unit, and the conveying unit is connected with the fixed winding unit. According to the invention, through the flow cooperation of the fixed winding unit, the conveying assembly and the adjusting assembly, the precise conveying of the copper wire to the wire embedding assembly and the wire embedding operation of the intelligent card are realized, and during the spacing adjustment, by means of the cooperative driving of the guide assembly and the adjusting assembly, the multi-unit linkage distance adjustment of the wire embedding assembly can be realized, and the single wire embedding assembly can be finely adjusted independently; and meanwhile, the control modes of manual reference setting of thread end burying and other electric adjustment, touch screen one-key distance adjustment and single-head fine adjustment are matched.

The invention relates to the technical field of polypropylene cable production, in particular to a stranding device for polypropylene cable production, which comprises a bracket and an electric hollow pipe mounted on the bracket, a porous disc is fixedly sleeved on the electric hollow pipe, and limiting frames are rotatably connected to the porous disc at uniform intervals in the circumferential direction through dampers. The limiting device is used for limiting a coil of copper wires. A copper wire can be driven to rotate through a wire stranding disc, the copper wire is rotationally stranded on a central wire, a tensioning wheel can tension the copper wire for stranding, when the copper wire is broken due to tension, a limiting wheel can press and limit the left copper wire which is broken, and an electric lifting frame drives a placement roller to rotate through a rack and a one-way gear; and the placement roller rotates to wind the broken right copper wire, so that the phenomenon that subsequent use is affected due to the winding phenomenon of the broken copper wire caused by inertia swinging is prevented, and the subsequent stranding efficiency of the copper wire is improved.

The invention discloses a quick-insertion type strain clamp which comprises an insulating shield, a clamp pressing plate, a wedge block sliding groove, a wedge-shaped sliding block, a compression spring, a pressing type plug pin assembly, an insulator connecting block, an end insulator, a wire plug, a jumper plug, a nylon nut, a T-shaped copper wire clamp and a spring contact finger. The wedge block sliding groove, the pressing type plug pin assembly, the T-shaped copper wire clamp and the insulator connecting block are sequentially installed on the wire clamp pressing plate and are combined into a whole through the wire clamp pressing plate, and the insulating protective cover wraps the outer side of the whole structure. The strain clamp designed by the invention forms a whole body, a wire is pressed during construction, and the installation can be completed by inserting a plug according to requirements. An integral insulation form is adopted, the insulation performance is better, the U-shaped structure is adopted at the end part, and the cable can be suitable for tower types of various angles, and the universality is good.

The invention relates to the technical field of transposed conductors, in particular to a preparation process of an ultrathin paint film transposed conductor, which comprises the following steps of: coating acetal paint on a base material, then coating intermediate modified paint, finally coating outer paint, and processing a treated copper wire into the transposed conductor. According to the ultrathin paint film transposed conductor, a copper wire is cleaned through absolute ethyl alcohol, then acetal paint, intermediate modified paint and outer paint are coated in a matched mode, finally, the transposed conductor is manufactured through the transposed conductor device and the wrapping device, the electrical performance, the heat conduction performance, the salt mist resistance and the high temperature resistance of the product are excellent, and the service life of the product is prolonged. Meanwhile, the impact resistance and the waterproof effect of the product are excellent, and the comprehensive coordination of the product is improved in a balanced manner.

The invention relates to the technical field of cables, and provides a low-voltage power cable which sequentially comprises a conductor, an insulating layer, a lining layer, an armor layer and a sheath layer from inside to outside. The armor layer is formed by winding two layers of parallel steel belts outside the cable lining layer in a spiral or longitudinal wrapping manner; the conductor is formed by twisting tinned copper wires; the sheath layer is a polyvinyl chloride resin sheath layer.

The invention provides improved techniques for bonding devices using copper-to-copper or other types of bonds. A substrate is cleaned to remove surface oxides and contaminants and then rinsed. The rinsed substrate is provided to coating unit where a protective coating is applied to the substrate. The protective coating may be applied by immersing the substrate in a bath or via chemical vapor deposition. In an aspect, the protective coating may be copper selective so that the protective coating is only applied to copper features of the substrate. The protective coating minimizes formation of oxides and other bond weakening forces that may form during bonding processes, such as bonding a copper wire to a copper bond pad of the substrate. In an aspect, an annealing process is used to cure the protective coating and remove small imperfections and other abnormalities in the protective coating prior to the bonding process.

Flexible and scalable miniature capacitive and inductive strain sensors, as well as methods for fabricating such strain sensors are described herein. According to an example, a flexible capacitive strain sensor can include a stretchable center core and two parallel wires wound about the stretchable center core, forming a double helix structure. Each of the two parallel wires can be embodied as an insulated or an uninsulated copper wire and the stretchable center core can be embodied as a polyester elastic string. The two parallel wires can be wrapped around the stretchable center core in a gapless fashion and with a winding angle of less than 45 degrees with respect to the stretchable center core.

The present application relates to transformer coil winding technical field, specifically is related to a kind of power transformer component coil winding equipment, including winding machine and framework, still including support rack, support side plate, setting on the wire arrangement mechanism of support side plate, setting on the pull roll mechanism and point adhesive unit of support rack, wire arrangement mechanism includes reciprocating traverse output end and is used to drive wire movement traverse seat, pull roll mechanism includes fixedly set on the support rack of bearing frame, rotationally set on the support roller of bearing frame, insulating paper is wound on support roller and is used to hold insulating paper clamping output end, clamping output end is connected with traverse seat, point adhesive unit includes setting on the vibration mechanism and drop glue device of winding machine, vibration mechanism includes vibration output end, vibration output end is connected with drop glue device, the present device can after copper wire winding ends, automatically pull out insulating paper, and to insulating drop glue, facilitate subsequent on the insulating paper of framework fixed, save working time, improve production efficiency.

The invention relates to the technical field of flat copper wire winding processing, and provides a flat copper wire multi-connection winding automatic production process which comprises the following steps: step 1, mounting a flat copper wire roll material; (2) the flat copper wire is straightened and then is fed into a winding forming device; 3, the flat copper wire enters a winding horizontal plane bending die and is bent into a winding; 4, the flat copper wire is moved to a connecting line horizontal plane bending die to be bent into a connecting line; 5, the connecting line is fed into a connecting line bending device; step 6, bending the connecting line; seventhly, the winding is clamped by the material supporting mechanical arm device, and the flat copper wire is bent into the next winding through the winding horizontal plane bending die; 8, when the number of the windings reaches a set threshold value, a finished product is obtained; and ninthly, the flat copper wire is cut off through a wire cutting device, and a finished product falls on a discharging conveying belt. The flat copper wire winding has the advantages that the flat copper wire windings and the connecting wires are formed by bending the same flat copper wire, the windings can be connected and electrified without welding, and the production efficiency is high.

The invention relates to the technical field of composite armored cables, and discloses an intelligent sensing type photoelectric composite armored cable for deep-sea mining equipment, which comprises a cable core formed by twisting a plurality of power cable core conductors, an optical fiber communication unit, a medium conveying pipeline and an intelligent sensing unit, and an outer coating layer, tin-plated annealed copper wires and high-strength copper foil wires are arranged in a conductor of the power cable core, an insulation shielding layer is wrapped outside the conductor, the intelligent sensing unit integrates a plurality of optical fibers and optical fiber grating sensors, a loose structure is arranged outside the intelligent sensing unit, one intelligent sensing unit is used for monitoring strain distribution, the other intelligent sensing unit is used for monitoring temperature distribution, and other redundant optical fibers are used as redundant backups. A certain length of grid region interval is preset, distributed measurement along the length of the cable is realized, a sensing optical fiber in the intelligent sensing unit is connected to an optical fiber demodulator of a deck control room, a software system displays strain, temperature, vibration and form data of each point of the cable in real time, an alarm threshold value is set, and the structure is highly integrated and can adapt to a deepwater environment.

The invention relates to the technical field of defect detection, in particular to a copper wire internal defect detection method and system combined with eddy current. The method comprises the following steps: applying composite excitation formed by superposing multi-frequency harmonic signals, collecting eddy current response signals, and obtaining an initial time-frequency spectrum matrix through short-time Fourier transform; singular value decomposition is carried out on the matrix, and after main singular value components related to the lift-off effect are removed, a lift-off correction spectrum matrix is reconstructed; calculating the maximum Lyapunov exponent and the spectrum kurtosis value of the correction matrix as a first defect characteristic quantity and a second defect characteristic quantity respectively; and constructing a two-dimensional feature plane based on the two feature quantities, calculating an angle correction quantity by utilizing energy of a rejected component so as to adjust a defect judgment area, and finally judging the defect by combining a Manhattan distance and a corrected angle interval. According to the scheme, the lift-off effect interference can be effectively inhibited, the dynamic criterion is constructed, and high-precision and high-reliability detection of the weak defects in the copper wire is realized.

The invention relates to the field of material science and electronic engineering, and discloses a treatment method of a copper wire doped high-conductivity material, which comprises the following steps: (1) material selection and pretreatment: selecting at least one of silver, nickel and rare earth elements as a doping element, and selecting at least one of a carbon nanotube or graphene as a composite material; pre-treating the doping elements and the composite material to ensure uniform dispersion of the doping elements and the composite material; and (2) alloying process: smelting the pretreated doping elements and a copper-based material to form a copper alloy, and processing the copper alloy into a copper wire through a casting or forging process. By optimizing the material composition of the copper wire and adopting the nano-composite technology, the conductivity, the mechanical strength and the corrosion resistance of the copper wire are remarkably improved; meanwhile, due to the improvement of the surface treatment process, the oxidation resistance of the copper wire is effectively enhanced, the service life of the copper wire is prolonged, and the stability of the copper wire in various severe environments is ensured.

The invention relates to a copper wire multi-head wire drawing tension intelligent adjusting method and system, and the method comprises the steps: collecting wire drawing tension data at each wire drawing pass in real time, synchronously obtaining linear speed, motor rotating speed and wire diameter change parameters, carrying out the fusion analysis of the data, and constructing a multi-head wire drawing tension distribution model; calculating a target tension interval of each wire drawing head according to the specification of the copper wire and preset wire drawing process parameters, generating a tension adjusting instruction when the actual tension deviates from the target tension interval, adjusting the rotating speed of a driving motor of the corresponding wire drawing head or the wire drawing speed, and feeding back an adjusting result to a control system to form closed-loop control. The system comprises a multi-point tension acquisition module, an operation parameter acquisition module, a data processing and analysis module, an intelligent decision control module, an execution control module and a feedback control module. Intelligent and stable adjustment of tension in the multi-head wire drawing process is achieved, the consistency of the wire drawing quality is improved, the wire breaking risk is reduced, and the device is suitable for continuous and automatic wire drawing production scenes.

The invention relates to the technical field of copper material manufacturing and processing, in particular to a flat copper wire straightening device which comprises a workbench, supporting legs are fixed to the corners of the bottom face of the workbench, and the flat copper wire straightening device further comprises a feeding mechanism, a longitudinal straightening mechanism, a transverse straightening mechanism and a stress relieving mechanism which are sequentially installed on the top face of the workbench. The stress relieving mechanism comprises a box fixed to the workbench, a heat insulation plate is arranged in the middle of the box, an inlet and an outlet which are aligned are formed in the two ends of the box respectively, and the heat insulation plate is provided with a through groove. An oil cooler and a control module are mounted on the top surface of the box body; an infrared thermometer electrically connected with the control module is mounted on the side, close to the inlet, of the thermal insulation plate; a first stress relieving mechanism and a second stress relieving mechanism are arranged in the box body and form a cooling oil circulation loop. Through eddy current heating of the first stress relieving mechanism and flexible pressure maintaining cooling of the second stress relieving mechanism, the internal stress of the flat copper wire is eliminated, secondary springback is avoided, the straightness stability is improved, and the machining requirement of a high-precision motor winding is met.

The invention relates to the technical field of cable production, and discloses a new energy charging heat-conducting flame-retardant cable which sequentially comprises a conductor layer, a heat-conducting insulating layer, a self-healing layer, a shielding layer, a mechanical enhancement layer and a flame-retardant outer sheath layer from inside to outside. The conductor layer is formed by a plurality of stranded tin-plated copper wires or nickel-plated copper wires; the heat-conducting insulating layer is composed of a crosslinked polyethylene matrix, a two-dimensional heat-conducting filler and phase-change temperature-adjusting microcapsules, the two-dimensional heat-conducting filler comprises a mixture of boron nitride nanosheets oriented by an electric field and graphene, and the mass fraction of the filler is 40%-55%; a core material of the phase-change temperature-adjusting microcapsule is a compound of paraffin and stearic acid. According to the scheme, trace rare earth and silver elements are introduced into the conductor to form a Cu-Ag-RE solid solution structure, so that the crystal integrity and the oxidation resistance of the conductor are remarkably improved; the structure still keeps excellent conductivity and bending resistance at high temperature, so that the cable can stably operate for a long time in a high-temperature and strong ultraviolet environment during charging, and the conductivity efficiency is improved.

The invention discloses intelligent winding equipment for copper wire stretching and a winding method of the intelligent winding equipment, and belongs to the technical field of copper wire machining. The intelligent winding equipment mainly comprises a base plate, a first baffle is fixed to one end of the base plate, and a second baffle is fixed to the other end of the base plate; a winding mechanism and a tension detection mechanism are arranged between the first baffle and the second baffle, the tension detection mechanism comprises lifting cavities which are formed in the first baffle and the second baffle and are opposite in position, lifting blocks are slidably connected into the lifting cavities, and a pressing rod is fixed to the middle of one end of each lifting block; according to the copper wire winding device, through the arranged tension detection mechanism, the winding speed can be automatically adjusted according to the tension force generated in the real-time monitoring copper wire winding process, the copper wire winding efficiency is improved, through the arranged cam shaft, positioning blocks, limiting sliding blocks, limiting plates, moving plates and wire clamping rolling rods, the copper wire moving direction can be conveniently controlled, the copper wire winding uniformity is improved, and the copper wire winding efficiency is improved. And the problems of knotting and accumulation of the copper wire in the winding process are solved.

The invention provides an inductance element and a manufacturing method thereof, the inductance element comprises an electrode and a magnetic core, a metal transition layer is arranged between the electrode and the magnetic core, the metal transition layer and the electrode are connected in a metallurgical bonding mode, and the metal transition layer and the magnetic core are connected in a metallurgical bonding mode. The inductance element can prevent the interface between the magnetic core and the copper wire from cracking, and the product performance is excellent.

The invention discloses a phase group type block stator iron core and flat wire winding, which comprises a stator iron core, a rotor iron core is arranged on the inner side of the stator iron core, a stator slot on the stator iron core is a straight slot, a winding in the stator slot is a concentrated winding, the winding is a flat wire, the stator iron core and the winding form a motor stator, and the stator iron core and the winding form a motor stator. The stator core is formed by splicing a plurality of stator blocks, and each stator block comprises two tooth parts. According to the phase group type block stator iron core and the flat wire winding, each stator block comprises two tooth parts, a winding groove of the stator iron core is a flat-bottom straight groove, a flat copper wire is wound in the winding groove, the winding coefficient is 0.933, flat wire coils are wound on the tooth parts firstly, then integral splicing is carried out, and a single stator iron core passes through the structure of the two tooth parts, so that the assembly is simpler; when coils are wound, two coils can be wound at a time, and compared with the arrangement of a single coil, the splicing workload can be reduced, and the operation convenience of workers is improved.

The invention discloses an elastic composite shielding cable for a ship and a preparation process thereof, and aims to solve the problems of poor environmental adaptability, low shielding effectiveness, insufficient elasticity and unstable process of an existing ship cable. The cable sequentially comprises a conductor layer, an insulating layer, a composite shielding layer and a sheath layer from inside to outside, wherein the conductor layer is formed by twisting a plurality of strands of superfine tinned oxygen-free annealed copper wires, and two 1500D aromatic polyamide fiber elastic cores are arranged in the center of the conductor layer; the insulating layer is made of ethylene propylene rubber or thermoplastic elastomer, and the dielectric constant is not more than 3.0; the composite shielding layer is of a double-layer structure of aluminum-plastic composite tape wrapping and tinned copper wire weaving, and the shielding effectiveness of the X wave band is larger than or equal to 30 dB. The sheath layer is of a chloroprene rubber or polyurethane double-layer structure, tests such as C5-M-grade salt mist are carried out, the preparation process comprises the steps of conductor twisting, insulation extrusion, composite shielding forming and the like, various parameters are accurately controlled, the bending radius of the cable is smaller than or equal to 6D, and the cable is stable in performance after being repeatedly bent for 1000 times, low in smoke, halogen-free, flame-retardant, adaptive to severe environments of ships, stable in process and high in reliability. And reliable operation of ship equipment can be ensured.

The invention relates to the technical field of copper wire drawing, and discloses continuous drawing equipment for a single crystal copper wire, which comprises an operation panel, take-up and pay-off assemblies are arranged on two sides of the top of the operation panel, a drawing assembly is arranged between the take-up and pay-off assemblies, the drawing assembly comprises a plurality of drawing dies, and the drawing dies are arranged on the operation panel. T-shaped blocks are fixedly connected to the bottoms of the drawing dies, a sliding groove is formed in the top of the base table, positioning balls are arranged on the left sides and the right sides of the interiors of the multiple T-shaped blocks, first limiting plates are fixedly connected to the side walls of the positioning balls, and first springs are arranged on one side edges of the limiting plates. According to the mold, firstly, the mold is pulled through the handle to drive the bottom T-shaped block to move, when the T-shaped block moves, positioning balls on the two sides in the T-shaped block are extruded by the inner wall of a sliding groove to retract to compress springs, the springs reversely push limiting plates to drive the positioning balls to be clamped into positioning grooves after the springs are in place, and the effect of rapidly adjusting the position of the mold is achieved; the problem that the position of a traditional drawing die is inconvenient to adjust is solved, and the equipment debugging efficiency and the drawing precision are improved.

The invention belongs to the technical field of coating binding force detection, and particularly relates to a tinned copper wire coating binding force detection method which comprises the steps that tinned copper wire coating binding force detection equipment controls a tinned copper wire to penetrate through a constant-temperature heating area at a first speed, and special treatment is conducted on the copper wire before the surface of the copper wire is tinned, the same envelopes are arranged at fixed intervals; after the envelopes penetrate through the constant-temperature heating area, measuring the air bag area after each envelope is bulged; and obtaining the coating binding force of the tinned copper wire at the corresponding position of each coating film according to the air bag area after each coating film is bulged. The method can solve the problem that the detection process is tedious when the tinned copper wire is detected in the prior art.