413 results about "Copper tape" patented technology

The invention relates to the technical field of cross-linked polyethylene cables, in particular to a mining cross-linked polyethylene insulated armored self-repairing cable and a manufacturing method thereof.The mining cross-linked polyethylene insulated armored self-repairing cable comprises a center conductor unit, a cross-linked polyethylene insulating layer, a shielding layer and an armored layer sequentially wrap the outer side of the center conductor unit from inside to outside, and an outer sheath layer is extruded on the outer side of the armored layer; the shielding layer comprises a semi-conductive shielding layer wrapping the outer side of the cross-linked polyethylene insulating layer, and the outer side of the semi-conductive shielding layer is wrapped with a copper strip shielding layer. By arranging the composite conductor structure in the central conductor unit and cooperating with the graphene heat dissipation filaments and the paraffin heat absorption and heat dissipation layer, the heat dissipation performance of the cable is improved, the temperature of the cable during operation is effectively reduced, faults caused by overheating are reduced, and the service life of the cable is prolonged; the armor layer and the copper strip shielding layer realize multipoint equipotential grounding through a sectional conductive adhesive tape, electromagnetic interference can be effectively shielded, and fault current diffusion is limited.

The invention relates to the technical field of cable production and processing, and provides a tension balancing device and a balance adjusting method for a cable shielding layer wrapping machine, and the device comprises a wrapping mechanism which is used for winding a copper strip to the periphery of a cable core wire; the tension adjusting mechanism is used for adjusting the tension of the copper strip in the winding process; the balance adjusting mechanism is used for synchronously adjusting the winding angle of the copper strip in the tension adjusting process; the tension adjusting mechanism comprises a driving assembly and a tension adjusting assembly, the tension adjusting assembly comprises a fixing box, and a rack is slidably connected to the upper end of the inner right side of the fixing box. Through mutual cooperation of a driving assembly and a tension adjusting assembly in the tension adjusting mechanism, when the copper strip on the periphery of the collecting disc is reduced, the tension on the copper strip can be kept unchanged, and then the situation that when the copper strip is reduced, the tension of a second limiting wheel on the copper strip is increased, and consequently the copper strip is broken is avoided.

The utility model discloses a bending-resistant radio frequency coaxial cable, which comprises an inner conductor, an insulating layer, a shielding layer and a sheath layer which are sequentially arranged from inside to outside, the inner conductor is formed by concentrically twisting a plurality of strands of silver-plated copper wire monofilaments; the insulating layer comprises an inner insulating layer and a polytetrafluoroethylene film outer insulating layer; the inner insulating layer is wrapped outside the inner conductor and is formed by sintering a polytetrafluoroethylene tape; the polytetrafluoroethylene film outer insulating layer is wrapped outside the inner insulating layer; the shielding layer comprises an inner shielding layer, a middle layer and an outer shielding layer, and the inner shielding layer is a silver-plated copper strip wrapping layer and wraps the insulating layer; the middle layer is a polyimide aluminum foil composite belt wrapping the inner shielding layer; the outer shielding layer is a silver-plated aramid yarn woven layer and is woven outside the middle layer; the sheath layer is a polytetrafluoroethylene sheath layer. The cable provided by the utility model has the characteristics of high-frequency bending resistance and good environment resistance, and also has excellent electrical transmission performance.

The present invention discloses a fire-resistant cable, which includes a conductor. A conductor shielding layer is arranged outside the conductor. An insulating layer is arranged outside the conductor shielding layer. An insulating shielding layer is arranged outside the insulating layer. A semiconductive buffer tape layer is arranged outside the insulating shielding layer. A composite copper tape shielding layer is arranged outside the semiconductive buffer tape layer. The composite copper tape shielding layer includes an inner shaped copper tape winding layer and an outer flat copper tape covering layer. The shaped copper tape winding layer is formed by winding copper tapes with a T-shaped cross-section, and adjacent winding turns overlap a part of each other. There are cavities between the T-shaped copper tapes and both the inner semiconductive buffer tape layer and the outer flat copper tape covering layer, and the cavities are filled with dry powder. The outside of several cable cores is a cable skin, and an insulating filling layer is arranged between the cable skin and the cable cores; through the formation of a composite fire-resistant structure, the cable can achieve the effect of layered heat insulation; the composite copper tape shielding layer forms cavities for accommodating dry powder, which can improve the heat preservation and heat insulation effect.

The invention relates to the technical field of electric wires and cables, and discloses an ultrahigh-conductivity electric wire and cable and a preparation method thereof. A graphene enhancement layer; a nano composite insulating material layer; an inner semi-conductive layer; a conductive copper strip shielding layer; a silver-plated copper wire woven mesh shielding layer; an intelligent monitoring and protection sheath; the method comprises the following steps: step S01, preparing a superconducting core wire strand; step S02, preparing a nano composite insulating material layer; s03, preparing a shielding layer; step S04, intelligent monitoring and protection sheath preparation; the superconducting core wire strand formed by twisting a plurality of YBCO superconducting material filaments forms a stable structure with excellent conductivity under the precise control of twisting process parameters, so that the resistance is effectively reduced, the loss in the electric energy transmission process is reduced, the electric energy transmission efficiency is improved, high-density current can be borne for stable transmission, and the service life of the cable is prolonged. And the requirement of the modern electrical engineering field on high conductivity of wires and cables is met.

The utility model relates to the technical field of copper belt rolling, in particular to a pressure-adjustable multi-section extrusion type ultra-thin copper belt rolling device which comprises a machine body, a conveying belt arranged in the machine body and used for conveying workpieces, a first rotary driver used for driving the conveying belt to convey and extrusion rollers used for extruding the workpieces. The extrusion device comprises an extrusion roller and an adjusting mechanism for driving the extrusion roller to adjust the position in the vertical direction, and is characterized in that the adjusting mechanism comprises a second rotating rod, a third rotating rod and a driving connecting mechanism for driving the second rotating rod and the third rotating rod to slide in the vertical direction; the multi-section extrusion type ultra-thin copper belt rolling device further comprises a cutting mechanism for cutting workpieces and a collecting mechanism for collecting cutting waste materials. According to the technical scheme, the extrusion roller and the second cutting roller synchronously ascend or descend, so that copper strips are extruded and cut synchronously, the copper strips with different thicknesses can be extruded and cut, and the applicability of the device is improved.

The invention discloses a double-pressing-wheel film pressing device for a copper strip of a lead frame, and relates to the technical field of lead frame film pressing, and the double-pressing-wheel film pressing device comprises two groups of hot pressing wheels which are used for carrying out hot pressing lamination on the copper strip and a film; the winding equipment is used for winding the copper strip subjected to film pressing; the two scraping mechanisms are arranged between the hot pressing wheel and the winding equipment and are symmetrical up and down; the scraping mechanism comprises two horizontally-arranged pressing rollers and a driving assembly, wherein the driving assembly drives the pressing rollers to move in a reciprocating mode in the direction perpendicular to the copper strip conveying direction. And the lifting control part is used for realizing alternate lifting of the compression rollers through cooperation of the guide grooves and the guide wheels. The problems that in the prior art, in the lead frame copper strip film pressing process, gas cannot be completely exhausted, bubbles are formed, and then electric conduction is affected are solved. The device has the advantages that by arranging the scraping device, bubbles are removed through the scraping device after film pressing is completed, and the like.

The present invention provides a continuous extrusion device and method for copper strip processing, which relates to the technical field of copper strip processing devices. A continuous extrusion device for copper strip processing includes: a workbench erected on a horizontal plane; a first rotation source fixedly arranged on the workbench and provided with a plurality of them along the vertical direction. The driving shaft of each first rotation source is fixedly connected with a support rod, the support rod is rotationally connected with the workbench, the support rod is fixedly sleeved with a roller base body, and adjacent two roller base bodies extrude the copper strip. The inner side wall of the roller base body is fixedly connected with a reinforcing rib, and the height of the reinforcing rib gradually increases from the middle of the roller base body to both ends. The present invention has the effect of improving the extrusion accuracy of the copper strip.

The invention discloses a cable resistant to high temperature and acid corrosion, and the cable comprises a conductor layer which is formed by concentrically twisting a plurality of nickel-coated copper wires; the inner insulating layer coats the conductor layer and is used for improving the thermal conductivity of the cable; the outer insulating layer is sleeved on the inner insulating layer; the anti-bending buffer layer is coated outside the outer insulating layer; the electromagnetic shielding layer wraps the anti-bending buffer layer and is used for forming a shielding layer; the electromagnetic shielding layer is coated with the anti-corrosion functional layer, the anti-corrosion functional layer is a fluororubber belt, and benzotriazole corrosion inhibition microcapsules are embedded in a rubber layer of the fluororubber belt; and the mechanical strengthening layer is arranged outside the anti-corrosion functional layer in a sleeving manner. According to the invention, the conductor layer adopts the nickel-coated copper wire to improve the high-temperature-resistant conductivity, the corrosion inhibition microcapsules are embedded in the corrosion-resistant functional layer to realize long-acting corrosion resistance, the electromagnetic shielding layer is combined with graphene and the tinned copper strip to enhance the broadband shielding effectiveness, and the cable has long-acting corrosion resistance, mechanical property stability in a high-temperature environment and broadband electromagnetic shielding effectiveness.

An enclosure to protect people and instruments from the effects of an electromagnetic pulse (EMP) is provided. The enclosure includes a floor assembly; walls extending upward on a first, second, third, and fourth side of the floor assembly; a roof; and a ceiling. On the interior of the enclosure, a shield layer is provided such that the enclosure forms a six-sided Faraday cage. Fasteners and other conductive securement materials such as copper tape help achieve the conductivity of the shield layer. Extending through the walls of the enclosure may be secure points of entry allowing for people, air, and conductors to securely enter and exit the enclosure. The enclosure contains a grounding system to assist with protecting the contents of the enclosure from the effects of the EMP.

The invention discloses a copper strip coil steel sleeve transfer device which comprises a base, a steel sleeve bearing lifting frame and a steel sleeve storage frame and further comprises a pushing structure, a sliding rail is arranged on the base in the axial direction of a rolling shaft, the steel sleeve bearing lifting frame is arranged on the sliding rail, and the steel sleeve storage frame and the pushing structure are arranged corresponding to the outer end of the sliding rail. The steel jacket storage rack and the pushing structure are correspondingly arranged on the two sides of the sliding rail. The disassembled steel sleeve is supported by the steel sleeve bearing lifting frame, the steel sleeve bearing lifting frame supports and bears the steel sleeve to move to the pushing position together, the steel sleeve descends to be flush with the steel sleeve storage frame, the steel sleeve is pushed into the steel sleeve storage frame through the pushing structure, the structure is compact, the occupied space is small, and workshop arrangement and installation are facilitated; and the steel jacket transfer operation is efficient.

The invention relates to the technical field of special cable manufacturing, in particular to a corrosion-resistant power cable and a preparation method thereof.The corrosion-resistant power cable is composed of a copper conductor, a conductor shielding layer, a crosslinked polyethylene insulating layer, an insulating shielding layer, a metal shielding layer, a lining layer, an armor layer and an outer sheath; the surface of the copper conductor is plated with a nickel-phosphorus alloy, and the outer sheath contains low-density polyethylene, an ethylene-vinyl acetate copolymer, nano zinc oxide, a rare earth cerium compound and a silane coupling agent; the insulating layer is prepared through silane crosslinking, the armor layer is a galvanized steel strip or a steel wire, the metal shielding layer is wrapped by a copper strip or a copper wire, and the lining layer is made of polyethylene or a halogen-free material. The outer sheath is high in corrosion resistance, the conductors are resistant to oxidation, the insulation eccentricity is low, the stability is improved through the shielding and armoring structure, the insulation performance is optimized through the cross-linking technology, the preparation technology is suitable for industrial production, the qualified rate of finished products is high, and cost is low.

The utility model relates to copper strip cleaning and filtering equipment. The device comprises a shell, an ultrasonic generator is mounted in the middle of the shell; the middle part of the shell is fixedly connected with a first motor; the inner side wall of the shell is rotationally connected with a plurality of rollers; the output end of the first motor is fixedly connected with one of the rollers; a partition plate is fixedly connected to the inner side wall of the shell. A plurality of water outlet holes are formed in the middle of the partition plate; the partition plate is obliquely arranged; an adjusting assembly is arranged in the middle of the shell; the bottom of the partition plate is fixedly connected with a filter pad; the filter pad is fixedly connected with the shell; the top of the shell is fixedly connected with a water pump; the input end of the water pump is communicated with the shell; the output end of the water pump is communicated with the shell; wastewater generated after the copper strip is cleaned by the ultrasonic generator is filtered by the filter pad and then recycled by the water pump, so that the wastewater is filtered by the equipment, and the utilization rate of water resources by the equipment is increased.

The utility model discloses a driving four-axis index plate for copper strip production, which relates to the technical field of four-axis index plates and comprises a bottom plate and an adjusting component. Two corresponding supporting plates are fixed to the right end of the upper side of the bottom plate, rotating holes are formed in the edges of the upper sides of the supporting plates, rotating shafts are rotationally connected into the rotating holes, a four-shaft index plate is fixed between the two rotating shafts, a cooling assembly is installed on the left side of the bottom plate, and a gas injection assembly is installed on the upper side of the cooling assembly. The spraying assembly and the extrusion assembly are mounted on the upper side of the bottom plate, and the gas injection assembly is connected with the spraying assembly; and the adjusting assembly comprises a connecting disc, clamping grooves, fixing blocks, clamping rods, inclined blocks and springs, the connecting disc is fixed to the end face of the rotating shaft, the clamping grooves which are evenly distributed are formed in the circumferential face of the connecting disc, the fixing blocks are fixed to the side face of the supporting plate, efficient heat dissipation can be achieved, and meanwhile rapid adjustment can be achieved according to needs.

The utility model belongs to the technical field of copper strip processing, and particularly relates to copper strip coiled material slitting equipment which comprises a bottom plate, a first mounting plate and a second mounting plate are fixedly arranged at the top of the bottom plate, a discharging roller and a winding roller are arranged on one side of the first mounting plate and one side of the second mounting plate respectively, a first mounting frame is fixedly arranged at the top of the bottom plate, and a second mounting frame is fixedly arranged at the bottom of the bottom plate. A first mounting frame is arranged on the top of the base plate, a second mounting frame is movably arranged on the top of the base plate, a positioning plate is arranged on one side of the second mounting frame, a locking bolt is movably arranged on the positioning plate, and a first mounting block and a second mounting block are arranged in the first mounting frame and the second mounting frame respectively. The transverse plate can be driven by pressing the pressing block, then the transverse plate drives the positioning rod to be separated from the pin hole, and then the cutter distance can be adjusted by moving the cutter, so that the equipment can cut the coiled tape into the specified size, the application range of the equipment is expanded, and meanwhile the practicability of the equipment is improved.

The invention relates to the technical field of overhead cables, in particular to an overhead conductor cable with a split type diversion mechanism, which comprises a cable body, and the cable body comprises a conductor, a conductor shield, an insulator, an insulation shield, a copper strip shield, a filler, a wrapping tape, an inner sheath, an armor and an outer sheath from inside to outside. According to the overhead conductor cable with the split type flow guide mechanism, the middle flow guide frame is arranged on the armor, and the internal flow guide pipe inserted into the middle flow guide frame is communicated with the split type flow guide mechanism; according to the split type diversion mechanism, diversion nozzles on two sides are inserted into lateral openings of an internal diversion pipe to form a circulating flow channel on a cable body, so that the heat dissipation performance in the cable can be greatly improved, and the cable can stably and efficiently run for a long time; the plurality of annular assembling grooves are formed in the outer side of the outer sheath, the split type flow guide mechanisms are installed on the annular assembling grooves to be fixed to the cable, splicing can be carried out in the later period, and the installation mode is simple and rapid.

The utility model discloses a copper band leveling device, including feeding module, leveling module and receiving module, the feeding module includes fixed frame, rotatable installation on the fixed frame's rotating roller, be used for driving rotating roller rotation's drive motor and be used for fixing and installing copper band winding pipe on the rotating roller's tensioning component, the rotating roller is through drive shaft with the output end transmission connection of drive motor, the outer diameter of rotating roller is less than the inner diameter of copper band winding pipe, the tensioning component includes the sliding pipe of sliding on the rotating roller, the tensioning block of being connected with sliding pipe through linkage and be used for fixing the compression member of sliding pipe, the center of rotating roller is equipped with center sliding hole, and the sliding pipe cooperation is inserted in the center sliding hole, the outer wall of rotating roller is equipped with the tensioning hole of intercommunication with the center sliding hole, and the tensioning block cooperation is inserted in the tensioning hole.

The present invention provides a copper strip pickling and drying device, comprising a first mounting seat, a limiting member, a lifting screw, a mounting frame, a guide roller, a drying mechanism and a blocking mechanism, wherein there are two limiting members, which are respectively arranged on the upper rear side of the first mounting seat, the lifting screw is rotatably arranged on the upper front side of the first mounting seat, the mounting frame is slidably connected to the limiting member, the guide roller is rotatably arranged on the mounting frame, the drying mechanism is arranged on the first mounting seat, and the blocking mechanism is arranged on the drying mechanism. The copper strip is placed between the tops of the guide rollers and the copper strip is fitted with the drying roller, and the direction of the air outlet slot opening on the blocking member is adjusted by operating the regulating motor so that the final flow direction of the air flow can face the surface of the copper strip. During the movement of the copper strip, the hot air flow will continuously be discharged through the heat dissipation holes on the drying roller, and the upper and lower surfaces of the copper strip will be dried in a close-fitting manner in both directions. The air flow will be concentratedly sprayed under the bunching effect, thereby improving the drying efficiency and drying effect.

This invention discloses an environmentally friendly, green, halogen-free flame-retardant cable and its preparation method, relating to the field of cable technology. The cable includes a tin-plated copper conductor at its center. An inner shielding layer, an insulation layer, and an outer shielding layer are extruded onto the conductor using a three-layer co-extrusion process to form an insulated core. The insulated core is then wrapped with an oxygen-free soft copper strip as a metallic shielding layer, followed by a semi-conductive water-resistant tape pad, then longitudinally wrapped with an aluminum-plastic composite tape and extruded with polyethylene. A waterproof layer is wrapped with a double-layer high-strength corrosion-resistant alloy tape as an armor layer. The outermost layer of the cable is extruded with a flame-retardant outer sheath. This sheath uses polyethylene as a base material, adding maleic anhydride-modified oleic acid and peroxide, and incorporating zinc oxide and magnesium oxide to form an ion network structure, while also incorporating flame-retardant fillers. This invention exhibits good tensile strength, electrical insulation performance, compressive and tensile strength, and bending performance, while also possessing excellent elongation at break, low-temperature crack resistance, and halogen-free flame-retardant characteristics.

The utility model provides a high heat dissipation flanging type copper strip frame structure, comprising a frame main body, the surface of which is connected with frame carriers from left to right in sequence; the plurality of flanged copper strips are respectively arranged on the surfaces of the plurality of frame carriers, and a copper strip folding lug is arranged on one side of the surface of each flanged copper strip; the chip main body is arranged on the surface of the edge folding type copper strip and located on one side of the copper strip folding lug, a plurality of copper strip glue locking holes are transversely and longitudinally formed in the surface of the edge folding type copper strip, and a plurality of elastic piece supporting feet are sequentially arranged on the surface of the frame main body from left to right. The high-heat-dissipation flanging type copper strip frame structure provided by the utility model has the advantages that in the aspect of electrical performance, the resistance is reduced, the heat generation is reduced, and a relatively high packaging resistance value caused by metal wire connection can be avoided, so that the heat generated when current passes through is reduced, the performance and the stability of a chip are favorably improved, and the service life of the chip is prolonged. And the limitation of the conductive performance of the metal wire is broken through.

The invention relates to the technical field of cables, in particular to a torsion-resistant aluminum alloy cable which comprises a cable core composed of an aluminum alloy conductor, an isolation shielding layer and a crosslinked polyethylene inner sheath. The polyimide film is used for binding and fixing the plurality of cable cores; the outer layer of the polyimide film is sequentially coated with a copper strip wrapping shielding layer, a mica wrapping layer and an outer sheath layer. The outer sheath layer material has excellent mechanical properties and can effectively protect a conductor, and the prepared cable has good torsion resistance and fully meets multi-scene application requirements.

The invention discloses an environment-friendly intelligent medium-voltage cable, and relates to the technical field of cables, the environment-friendly intelligent medium-voltage cable comprises cable main body assemblies, a joint assembly and a disassembly assembly, the joint assembly is used for connecting the two cable main body assemblies, and the cable main body assemblies comprise a plurality of copper strip shields; the outer surface of each copper strip shield is fixedly connected with two disassembling assemblies; according to the environment-friendly intelligent medium-voltage cable, the drawing ring is pulled outwards to drive the limiting clamping strip to be drawn outwards, and the first buckle and the second buckle are tightly clamped outside the limiting clamping strip at the same time, so that when the limiting clamping strip is drawn out, the first buckle and the second buckle can be easily separated; the problem that all the layers in an existing medium-voltage cable are adhered through adhesives and cannot be classified and recycled is solved.

The invention discloses a special-shaped copper strip finish rolling forming device, and relates to the technical field of copper strip production and processing. A special-shaped copper strip finish rolling forming device comprises a main body mechanism which comprises an input bin and an output bin. A finish rolling assembly is arranged between the input bin and the output bin; the finish rolling assembly is composed of four forming assemblies. The forming assembly comprises a shaping mechanism, the shaping mechanism comprises two bottoms, and a first bottom roller assembly is installed between the two bottoms; the upper surface of the bottom is fixedly connected with rail frames, and a molding assembly is installed between the two rail frames. Pressing mechanisms are arranged on the two sides of the shaping mechanism correspondingly, each pressing mechanism comprises two base plates, and a second bottom roller assembly is installed between the two base plates; second rail grooves are formed in the upper portion of the base plate in a penetrating mode, and a pressing assembly is arranged between the two second rail grooves. And the total deformation of the anisotropic copper strip is decomposed into four gradients, so that the stress concentration problem is remarkably reduced, and the forming stability is improved.

The utility model discloses a copper strip stretch bending and straightening mechanism which comprises a bottom plate, a pair of feeding rollers are arranged on the bottom plate through a roller frame, any feeding roller is provided with a driven belt wheel, the driven belt wheel is arranged on a driving belt wheel through a transmission belt, the driving belt wheel is arranged on a motor through a coupler, and the motor is arranged on the bottom plate. At least two longitudinal fixed rolling wheels are arranged on the left side of the feeding roller, and a longitudinal adjusting rolling wheel is arranged between the opposite sides of the two longitudinal fixed rolling wheels; and at least five transverse wheels which are arranged in a staggered manner are arranged on the left side of the fixed roller. According to the copper strip straightening device, the adjustable longitudinal adjusting rolling wheels are arranged on the two sides of the straightening transverse wheels, when the copper strip is wide, the distance between the longitudinal fixing rolling wheels and the longitudinal adjusting rolling wheels can be adjusted to be wide by rotating the adjusting screw rods, otherwise, when the copper strip is narrow, the copper strip can be adjusted to be narrow, and adaptability is high.

The present invention relates to the field of assembly and manufacturing, and in particular to a method for improving the success rate of shrink-fitting between a sliding rotor and a sleeve of a pumped storage unit; the method comprises: using an upper guide sleeve shrink-fitting tool to check whether the copper tape wrapping is qualified; when the copper tape wrapping is qualified, drawing a shrink-fitting alignment observation line along the axial direction of the upper guide sleeve; lowering the upper guide sleeve into the upper guide sliding rotor; the upper guide sleeve insulated lower edge enters the secondary step of the guide sliding rotor through the guidance of composite paper; if the upper plane of the upper guide sliding rotor does not reach the position line of the lower edge of the upper guide sleeve, the composite paper is pulled out, and the upper guide sliding rotor is lowered until the upper plane of the upper guide sleeve is flush with the upper plane of the upper guide sliding rotor, and the lowering is ended to complete the shrink-fitting; the advantages of the present invention are that it realizes the inspection of the direction and angle of the copper tape wrapping, assists the upper guide sleeve insulated lower edge to accurately enter the secondary step of the upper guide sliding rotor, and can ensure the technical effect of precise alignment during the shrink-fitting process during the lowering, thereby improving the success rate of the shrink-fitting between the upper guide sliding rotor and the upper guide sleeve.

The application relates to the technical field of electric wire and cable, and discloses a fluoroplastic insulation high-temperature-resistant fireproof cable and a preparation method, the cable comprises a conductor layer, the conductor layer is twisted by multiple copper wires, the conductor layer is coated with a fluoroplastic insulation layer, the fluoroplastic insulation layer is coated with a shielding layer, the shielding layer is a copper-belt woven structure, the shielding layer is coated with an armor layer, the armor layer is woven by stainless steel wires, the armor layer is coated with a sheath layer, and the sheath layer comprises the following components in mass fractions: functionalized ethylene-tetrafluoroethylene copolymer, 50-70 parts by mass. The application constructs an interpenetrating polymer network formed by in-situ crosslinking of a functionalized fluoropolymer and an organic silicon elastomer in the sheath layer, and adopts an energy field gradient response vulcanization process, so that the prepared cable sheath keeps the inherent high-temperature resistance of fluoroplastic, and the flexibility and mechanical strength of the material are improved.

The utility model relates to the technical field of aluminum copper strip winding drum waste strip treatment, and discloses a residual winding machine convenient for removing aluminum copper strip winding drum waste strips, which comprises a rack, a hydraulic pump station, a control structure, a track, an X-shaped trolley, a hydraulic cylinder, a swing arm, a support roll shaft, a safety roll shaft, a winding shaft, an arc-shaped bracket, a pressing roll shaft, a guide roll shaft, a sleeve and a driving mechanism. According to the residual coiling machine facilitating removal of the aluminum copper strip coiling block waste strip, by arranging the coiling shaft, a residual plate strip on the sleeve can be manually fixed in the jaw, the plate strip can be conveniently removed from the sleeve, after collection is completed, the X-shaped trolley is controlled to ascend, the swing arm is controlled to be separated from the coiling shaft through the hydraulic cylinder, and the sector plate is controlled to contract, so that the plate strip is conveniently removed. According to the plate strip dismounting device, the X-shaped trolley can conveniently carry out residual plate strips, semi-automation of dismounting is achieved, manual participation is reduced, the working intensity of workers is reduced, the plate strips are dismounted in the manner, dismounting of narrow bands and wide bands can be comprehensively compatible, and the applicability of the plate strip dismounting device is improved.

The utility model relates to the technical field of cable manufacturing, and discloses a double-layer co-extrusion sheath cable which comprises a conductor, a conductor shielding layer, a crosslinked polyethylene insulating layer, an insulation shielding layer, a semi-conductive water-blocking tape, a soft round copper wire, a soft pure copper tape, a non-conductive water-blocking tape and a CPP tape from inside to outside. According to the double-layer co-extrusion sheath cable, the inner sheath layer and the outer sheath layer are arranged, the inner sheath layer is made of the flame-retardant PVC material with the oxygen index larger than or equal to 32%, a carbonization layer can be rapidly formed under the condition of high temperature or open fire, oxygen is effectively isolated, flame-retardant gas is released, and flame is prevented from spreading towards the interior of the cable, and the outer sheath layer is made of the high-hardness MDPE material. Although the flame retardance is general, the flame diffusion speed can be slowed down, and through the synergistic effect with the inner layer PVC, the overall flame retardant grade of the cable reaches the V-0 grade (UL 94 standard), the high-flame-retardant scene requirement is met, and the flame retardant property is further remarkably improved.

The utility model relates to the technical field of copper strip processing, in particular to a multi-layer interface calendaring forming device suitable for a copper strip, which comprises a calendaring mechanism and is used for calendaring forming of a multi-layer interface of the copper strip, the calendaring mechanism comprises a main body assembly, a plurality of rolling mechanisms and a plurality of rolling mechanisms, the main body assembly comprises a main frame fixed at the top of a base and sliding grooves formed in the two ends of the interior of the main frame; the execution assembly comprises an upper movable part and a lower movable part which are arranged at the upper end and the lower end in the base correspondingly, and a positioning part arranged in the middle in the base and matched with the upper movable part and the lower movable part for calendaring machining; the lower adjusting assembly comprises a lower mounting seat longitudinally and slidably mounted on the lower portion in the main frame, an inclined block fixed to the bottom of the lower mounting seat, extension seats fixed to the lower ends of the two sides of the main frame, inclined seats transversely and slidably mounted at the upper ends of the extension seats, and second air cylinders pivoted to the extension seats and used for driving the inclined seats; the calendering mechanism can meet the calendering requirements of copper strips with different thicknesses and can be used for calendering two copper strips at the same time.

The invention relates to the technical field of copper strip production, and discloses a copper strip hot rolling cooling device which comprises a fixing frame, four telescopic devices are fixedly installed on the fixing frame, connecting blocks are fixedly installed on output shafts of the four telescopic devices, and two movable frames are arranged below the fixing frame. A plurality of movable columns are movably connected into the two movable frames, each movable column is fixedly sleeved with a small ring, each water inlet pipe a is connected with a water source, and each air inlet pipe is connected with an air heater, so that after the copper strip is conveyed after hot rolling, water flow is sprayed downwards through a spray head a to cool the copper strip; then hot air of an air outlet groove is used for drying water stains on the copper strip to prevent the copper strip from being oxidized, meanwhile, the conveying device can drive the two movable frames to move back and forth to adjust the distance, and therefore the position of each spray head a can be adjusted according to the width of the copper strip; therefore, the water flow can be intensively jetted on the copper strip to avoid waste.