106 results about "Silver plate" patented technology

The invention discloses a material with a silver coating for low-temperature brazing of brazing filler metal, and particularly relates to the field of brazing welding, which comprises the following steps: silver amalgam paste is prepared by oscillating and mixing silver powder and mercury according to the mass ratio of 1: 9-0.5: 9.5 in a manner and method for plating silver on the surface of base metal (metal, semiconductor, ceramic or glass); when brazing is carried out, the surface of the silver plating layer of the to-be-welded piece is coated with brazing filler metal, and then heating and pressurizing are carried out in a low-temperature interval of 120-350 DEG C in a vacuum, protective atmosphere or atmospheric environment to complete connection. According to the method, the amalgam reaction and isothermal solidification principles are utilized, a tough welding spot mainly comprising a silver-based solid solution is finally formed, generation of a large number of brittle intermetallic compounds is avoided, a connector has high strength, high reliability and excellent thermal fatigue resistance, and therefore the problems that gold-tin brazing filler metal is high in cost, the brittleness of the welding spot is large, and the welding temperature is high are successfully solved.

The invention discloses a method for chemically plating silver on the surface of a nickel-plated ceramic copper-clad substrate, and relates to the technical field of metal surface treatment. The preparation method comprises the following steps: S1, sequentially adding nitric acid, imidazole and a surfactant into deionized water, and uniformly mixing to obtain an activating agent; s2, after the ceramic copper-clad substrate is pretreated, chemical nickel plating treatment is carried out, cleaning and drying are carried out, and a nickel-plated ceramic substrate is obtained; and S3, the nickel-plated ceramic substrate is immersed in an activating agent for activating treatment, chemical silver plating treatment and post-treatment are conducted, and a product is obtained. According to the method provided by the invention, the problem of copper ion migration in the later silver welding process of chemical silver plating on the surface of the ceramic copper-clad substrate can be solved, and the performance of the packaging module is improved.

This silver-plated material comprises a silver-plated layer on a base material. The surface of the base material is copper or a copper alloy. The silver-plated layer contains selenium. The Vickers hardness of the silver-plated material in the initial state and the Vickers hardness of the silver-plated material after being heated at 100°C for 168 hours are both 120 HV or more. The glossiness of the silver plated layer is 1.0 or more.

The invention relates to the technical field of explosive welding methods for composite plates, in particular to an explosive welding compounding method for a silver-steel composite plate. The method comprises the following steps that firstly, the surfaces of a silver plate and a steel plate are subjected to polishing treatment and film pasting protection; 2, a novel explosive is adopted, and explosive parameters are determined, specifically, the detonation velocity ranges from 1700 m / s to 1800 m / s, the brisance ranges from 6.5 mm to 6.8 mm, and the unit dosage ranges from 12 kg / m < 2 > to 15 kg / m < 2 >; and the optimal explosive welding distance is determined, wherein the height of the distance between the silver plate and the steel plate is 4-8 mm. According to the prepared silver-steel composite plate, effective metallurgical bonding of the silver plate and the steel plate is achieved, the bonding strength is far higher than that of other composite methods such as explosive welding, the defects of breakdown, wrinkling, tearing, jet flow accumulation and the like generated by a conventional welding method are effectively overcome, and meanwhile the phenomenon that the mechanical property does not reach the standard is avoided. Compared with other composite methods, the explosive welding process has the advantages that common calcium carbonate and bran are added and mixed with the explosive, low detonation velocity and appropriate brisance are obtained, the content of the explosive is reduced, and the cost is low.

The invention provides double-silver coated glass capable of being tempered in different places and a preparation method of the double-silver coated glass, and relates to the technical field of coated glass. The invention provides double-silver coated glass capable of being tempered in different places, which comprises a glass substrate, the bottom dielectric combination layer, the first Ag functional layer, the first metal sacrificial layer, the middle dielectric combination layer, the second metal sacrificial layer, the second Ag functional layer, the third metal sacrificial layer and the top dielectric protection combination layer are sequentially deposited on the surface of one side of the glass substrate from inside to outside. Each of the bottom dielectric combination layer and the middle dielectric combination layer is formed by laminating more than two dielectric layers; the top layer dielectric protection combination layer is formed by laminating more than two dielectric layers and a top layer protection layer, and the top layer protection layer is located at the outermost layer. The double-silver coated glass provided by the invention has excellent high-temperature resistance and supports remote tempering and laminated processing treatment, and the tempered product has excellent performance; and an excellent heat insulation effect is achieved.

The invention discloses a production process of a C-shaped sealing ring of a reactor pressure vessel, which comprises the following steps: preparing a silver plate and a nickel-based alloy plate for cutting off, cleaning the cut-off plate for use, finely cutting off the plate again after the plate is cleaned, re-welding the cut-off plate, and finishing a welding seam of the re-welded plate. After finishing is completed, all the plates are subjected to integrity inspection and prefabricated forming, after plate treatment is completed, a spring is wound and subjected to heat treatment, the spring is cut, a notch is finished, and the finished spring is welded; according to the invention, the line tightness and the sealing width are increased, a high-temperature test bench is developed, comprehensive performance test under 35 MPa and 600 DEG C can be completed, technological equipment required by production of the large-diameter sealing ring is developed, the sealing ring does not have any leakage and abnormal phenomena in the experiment process of the sealing ring, and after the test, the sealing ring is not damaged. And the sealing silver layer has no crack, folding, shedding and peeling phenomena.

The invention provides a composite silver plating method for an aluminum-based surface of an electric contact part. The method comprises the following steps: carrying out surface treatment on the aluminum-based surface of the electric contact part; pre-plating a copper layer on the surface of the aluminum base of the electric contact component subjected to surface treatment; and plating a silver-graphene composite layer on the aluminum-based surface of the electric contact component after the copper layer pre-plating is completed. According to the technical scheme provided by the invention, the surface of the aluminum base is pre-plated with the copper layer and then plated with the silver-graphene composite layer to generate the aluminum base-copper-silver-graphene composite plating layer, so that silver plating of the aluminum base is effectively realized, and the problem that silver plating on the surface of the aluminum base is difficult is solved.

The invention relates to the field of surface treatment of electrical materials for electric power system application equipment, and discloses a silver plating method for an outdoor high-voltage switch conductive part. The invention relates to a silver plating method for a conductive part of an outdoor high-voltage switch. The silver plating method comprises the steps of pre-plating treatment, organic solvent oil removal, chemical oil removal, acid etching, acid pickling passivation, wax brushing (soaking), acid pickling and film removal, cleaning and polishing of a to-be-plated surface, silver pre-plating, cyaniding silver plating, alkali boiling for wax removal, acid etching for bright dipping, acrylic varnish coating of a non-silver-plated part and silver layer anti-discoloration treatment. By optimizing the silver plating step and the formula of the silver plating electroplating solution, the hardness, adhesive force and weather resistance of the silver plating layer of the copper base material and copper alloy base material conductive part of the high-voltage switch are improved, so that the high-voltage switch can adapt to different working conditions and environments.

The utility model discloses a lead frame bending and cutting die, which belongs to the technical field of lead frame bending and cutting and comprises an upper die structure, the top surface of the upper die structure is fixedly connected with the output end of a punching machine, a lower die structure is arranged below the upper die structure, and the lower die structure is mounted on a frame of the punching machine; an upper guide structure is arranged at the corner of the bottom face of the upper die structure, a lower butt joint structure is arranged at the corner of the top face of the lower die structure, and the upper guide structure is slidably connected with the lower butt joint structure. A stamping structure is arranged in the middle of the inner side of the lower die working groove, and the plane of the stamping structure is higher than that of the lower die working groove; a cut-off structure is arranged on the inner side of the lower die working groove and located on the downstream of the running direction of the copper sheet. A traditional bending mode is broken through, the upper die is arranged to be the concave face, the lower die is arranged to be the convex face, silver plating is conducted firstly, then stamping is conducted, a silver plating face layer is in contact with the bottom face of the upper die structure, and the problem that a base conductor and a pin silver layer face are damaged by downward bending at the section position can be effectively solved in the stamping process.

The application discloses a copper wire silver plating drying equipment, and relates to the field of copper wire, which comprises a drying box, an unwinding roller and a winding roller, a wire inlet and a wire outlet are respectively arranged on the drying box at the unwinding roller and the winding roller, a tooth ring frame is reciprocatingly arranged on the outer wall of the drying box at the unwinding roller, one end of the tooth ring frame is connected with a tooth rod, a cleaning ring matched with the tooth rod is rotatably arranged in the wire inlet, and a plurality of conveying rollers are staggered arranged in the drying box. The cleaning ring is reciprocatingly rotated, so that the outer wall of the silver-plated copper wire is cleaned while the copper wire is unwound, the silver-plated copper wire does not contact each other in the conveying process, the residual heat in the drying chamber is discharged into the cooling chamber under the action of the heat exhaust pipe, so that the temperature is prevented from suddenly changing to cause cracks or stress concentration on the surface of the copper wire, and the heating power of the heating wire is greatly reduced.

The invention provides a polygonal spin end coating method and equipment for a chip component, and the equipment comprises the following components: an X-axis transverse moving module which is installed at the top of a complete machine frame of the equipment and is connected with a whole Z-axis lifting mechanism below through an aluminum block and a sliding rail, so as to drive a Z-axis lifting platform deck to move left and right in the X-axis direction; meanwhile, the Y-axis slurry spreading silver disc is matched to perform Y-axis front and back movement, so that three-axis spiral end coating operation is realized; the X-axis transverse moving module comprises an X-axis transverse moving motor, the X-axis transverse moving motor is installed on the side of the X-axis transverse moving module and fixed through screws, and the X-axis transverse moving motor rotates to drive the X-axis transverse moving module to act so as to control the Z-axis lifting platform deck to move left and right in the X-axis direction and control the X-axis operation range and speed, so that the speed and position of the spiral coating end are controlled; and the Z-axis lifting platform deck is hoisted below the complete machine frame and above the Y-axis slurry spreading silver disc through a sliding rail, moves left and right through the sliding rail, and performs lifting action above the slurry spreading silver disc. The device can be used for smearing in any shape, and the top of a chip component product has no salient point and is flat.

A cadmium-free, low-silver solder is characterized by its composition, by mass percentage, of 4.0% to 5.0% Ag, 40.0% to 45.0% Zn, 11.0% to 13.0% Sn, 0.5% to 1.5% In, 0.5% to 1.5% Ga, 0.5% to 1.5% Ni, 0.01% to 0.05% nano-CeO2, 0.01% to 0.05% nano-Y2O3, and the balance being Cu. Silver plates, cathode copper, zinc ingots, tin ingots, metallic indium, metallic gallium, and metallic nickel are added in the appropriate proportions and smelted using a medium-frequency smelting process. Before casting, trace amounts of nano-CeO2 and nano-Y2O3 powders are added, thoroughly stirred, and then cast into an ingot. The desired solder wire is then obtained through extrusion and drawing. The solder has a solidus temperature of ≤735°C and a liquidus temperature of ≤780°C. When used with the commercially available FB102 flux, the brazing performance of the brazing filler metal is close to that of the commercially available BAg25CuZn filler metal. When brazing copper-stainless steel, copper-brass, brass-stainless steel, and Q235 steel-stainless steel, the shear strength of the brazed joints is superior to that of the commercially available BAg25CuZn filler metal.

The invention provides a plating solution for improving compatibility of metal and environment-friendly substitute gas in gas insulation equipment and a preparation method of the plating solution, according to the plating solution, one-dimensional and two-dimensional materials are introduced and form a silver plating solution with zero-dimensional silver nanoparticles, and a multi-dimensional framework is jointly formed. And under the condition of different silver concentrations, the plating solution can have excellent dispersity, and no obvious layering or agglomeration phenomenon exists. According to the novel plating solution disclosed by the invention, one-dimensional and two-dimensional materials are introduced into the silver plating solution, so that the formed silver paste has excellent dispersity, and the silver paste can be stored for a long time and is low in cost on the premise of simple process. And silver plating solutions with different concentrations and viscosities can be obtained by controlling the adding amount of the ethylene glycol solvent. When the silver plating solution is plated on copper, the problem that the compatibility of copper metal in fluorocarbon environment-friendly insulating gas is poor can be solved, and the problems that when only silver paste is used for plating, the cost is high, the dispersity is poor, the viscosity is fixed, the concentration is fixed, and the adhesive force is poor can also be solved.

The invention discloses a method for preparing ultrafine silver powder. The method comprises the following steps: using a silver plate as a silver source, inserting two silver plates and an auxiliary electrode into an electrolyte; heating the electrolyte to 20-40°C; connecting the silver plate to a positive electrode of a constant current power supply, connecting an auxiliary electrode to a negative electrode of the constant current power supply, passing direct current, and preparing ultrafine silver powder on the surface of the auxiliary electrode; taking out the auxiliary electrode, scraping off the silver powder attached to the surface, washing, filtering, and vacuum drying, and obtaining ultrafine silver powder with a particle size of micrometer level; the method is simple to operate, has good consistency, and has a current efficiency of not less than 70%, and a current consumption of not more than 5kw·h / kg of silver powder; using a pure silver plate instead of silver nitrate as a silver source, the electrolyte and the auxiliary electrode can be reused, has good economic efficiency, is green and environmentally friendly, and has no pollution in the whole process; and the method can control the particle size of the silver powder by adjusting the current density, the electrolyte component, the electrolyte temperature, and the relative distance between the electrode pieces, so as to facilitate the production of silver powders of different specifications.

The production process of the photovoltaic V-shaped composite welding strip comprises the steps of prefabrication of an alloy copper strip, prefabrication of an alloy aluminum strip, prefabrication of alloy calcium powder and synthesis and mold pressing processes. The prefabricated alloy calcium powder, the alloy aluminum strip and the alloy copper strip are compounded and subjected to mould pressing through a synthesis mould pressing process, and the inclined grain V-shaped composite welding strip with inclined grains on the A surface is synthesized; the sloping grain V-shaped composite welding strip is subjected to surface cleaning, tin plating on the surface B and silver plating on the surface A to obtain the photovoltaic V-shaped composite welding strip. The photovoltaic V-shaped composite solder strip has the beneficial effects that the photovoltaic V-shaped composite solder strip manufactured by adopting the production process is low in cost, high in conductivity, low in failure rate, low in use and maintenance cost and long in service life; the cost of photovoltaic products can be reduced, application and popularization of the photovoltaic products are promoted, and immeasurable beneficial effects are brought to development of ecological energy and environmental protection.

The utility model relates to the field of rhinestone production and processing, and provides a surface silver plating device for rhinestone production, and the surface silver plating device for rhinestone production comprises: a conveying rack for conveying plastic uptake sheets; the conveying frame is provided with a telescopic hook used for hanging the blister sheet. The silver plating mechanism is arranged under the conveying frame and used for plating silver on the surfaces of the rhinestones on the blister sheets; the draining mechanism is arranged under the conveying frame and used for draining the blister sheets and the rhinestones; the draining mechanism is provided with an air blowing piece used for air-drying the rhinestones. The device further comprises a heating part used for heating and drying rhinestones and an exhaust part used for absorbing harmful substances in air of the draining mechanism and the silver plating mechanism. According to the surface silver plating device for rhinestone production, the draining efficiency after silver plating can be improved, and meanwhile harmful substances are prevented from volatilizing, polluting the environment and affecting the health of workers.

This utility model discloses a selective silver plating device for terminal components, belonging to the field of silver plating technology. The key technical features include a U-shaped base with a liquid storage component fixedly connected to its top. Positioning rods are fixedly connected to the front and rear sides of the U-shaped base. The liquid storage component includes a storage tank, with vibrating cylinders fixedly connected to both sides inside the tank. A cover plate is movably connected to the top of the storage tank. A spraying component is slidably connected to the surface of the positioning rods. This invention solves the problem that existing silver plating devices struggle to guide the flow of the silver plating solution. In actual use, due to the lack of a spraying device, it is difficult to accurately adjust the flow direction of the silver plating solution according to the actual situation, resulting in the terminal components still needing to be completely immersed in the plating solution. This causes parts that do not need silver plating to be plated with silver, which not only wastes silver material and increases production costs but may also affect the quality of the finished product, reducing the practicality of the device.

The present invention provides a copper surface chemical silver plating solution, comprising 0.1-100 g / L of silver (II) pyridine-2-carboxylate, 0.1-10 g / L of a complexing agent, 0.1-100 mL / L of an organic acid, 0.5-10 g / L of a surfactant, 0.2-8 g / L of an accelerator, 5-100 g / L of a corrosion inhibitor, and water. The present invention improves the chemical silver plating solution formula and adopts divalent silver ions Ag. 2+ It has a higher redox potential and a fast oxidation deposition speed, which makes the silver ion deposition rate fast and the silver plating layer can be deposited thicker. At the same time, the deposition rate is fast, and the attack on the circuit side corrosion position is small, which can avoid side corrosion. By combining with other additives, the deposition rate of silver ions can be further accelerated, the deposition thickness can be increased, and side corrosion can be avoided, thereby solving the side corrosion problems of thin silver thickness and strong acid corrosion of copper surface in chemical silver plating in the existing technology.

The application specifically relates to a preparation method of a low-gas-content silver plate, comprising the following steps: S1, adding silver powder into a crucible to smelt into a silver liquid; S2, adding a blocky silver graphite solid into the silver liquid, the blocky silver graphite solid is dispersed into silver graphite powder at high temperature, the smelting temperature is reduced and heating is performed; S3, pouring the silver liquid into a mold, and cooling to obtain the silver plate. The blocky silver graphite scrap is used as a deoxidizer to remove oxygen in the molten silver liquid, one is that when the blocky silver graphite is placed on the surface of the high-temperature silver liquid, the blocky silver graphite is broken into silver graphite powder and covers the surface of the molten silver liquid, the silver graphite powder is in full contact with the silver liquid and continuously consumes oxygen in the silver liquid; two is that no impurity ions are introduced, and the purity of the silver plate is maintained; three is that the broken silver graphite powder of the blocky silver graphite scrap, since the graphite powder is micron-level or even nanometer-level powder, air gas is difficult to penetrate the silver graphite powder layer and enter the molten silver liquid, and further plays a role of air isolation.

1. Name of the designed product: Medallion (rotating tennis - brass plated with silver). 2. Use of the designed product: for collection and commemoration. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

To provide a silver plating film with a lower surface friction coefficient.SOLUTION: A silver plating film containing silver atoms, carbon atoms, and nitrogen atoms has a carbon atom content of 0.30 mass% or more based on the total mass of the silver plating film, and a nitrogen atom content of 1.00 mass% or more based on the total mass of the silver plating film.SELECTED DRAWING: None

The utility model discloses a magnetic stirring device for a glass ornament silver plating tank in the technical field of magnetic stirring equipment, which comprises a magnetic stirring machine body and side plates, the side plates are fixedly connected to the front side wall and the rear side wall of the magnetic stirring machine body, and the upper sides of the inner side walls of the side plates are fixedly connected with springs. A first telescopic rod is connected to an inner cavity of the spring in a sleeved mode, a silver plating groove is fixedly connected to the tail end of the spring, a pushing rod is fixedly connected to the middle of the rear side wall of the silver plating groove, the tail end of the pushing rod penetrates through the side plate and extends to the rear side wall of the side plate, and a fixing table is fixedly connected to the rear side of the rear side wall of the side plate; the magnetic stirring device for the glass ornament silver plating tank is reasonable in structural design, the stirring effect can be improved, the stirring duration can be shortened, the production efficiency of glass products can be improved, solution splashing can be prevented, and solution waste is avoided.

To provide a silver-plated material having high Vickers hardness and good contact resistance even after heating, and the production method thereof, and an electrical contact terminal consisting of the silver-plated material.SOLUTION: Provided are a silver-plated material and its related technique, in which a silver plated layer is formed on the surface of a substrate whose surface is at least made of copper or a copper alloy. In the silver plated layer of the silver-plated material, an Sb content is between 0.1 mass% and 1 mass%; an Ag content is 99 mass% or more; an average crystal grain size measured by EBSD is less than 0.2 μm; and Vickers hardness is 105HV or more after 240-hour heating at 200°C.SELECTED DRAWING: None

The utility model discloses a ceramic pulse forming line, and relates to the field of electronic components. The problems that an existing ceramic pulse forming line is formed by multi-stage parallel connection of a plurality of capacitors and inductance elements, and the requirements for internal resistance, inductive reactance and the like of electronic elements are very strict are solved. Comprising a rectangular ceramic chip, the upper surface of the ceramic chip is provided with a rectangular silver sheet, the lower surface of the ceramic chip is provided with a rectangular silver sheet, and the length and the width of the rectangular silver sheet are smaller than those of the rectangular ceramic chip; and two ends of the rectangular silver sheet are respectively welded with a copper sheet terminal, the copper sheet terminals extend to the outer side of the ceramic chip, and the width of the copper sheet terminals is smaller than that of the rectangular silver sheet.

The utility model belongs to the technical field of electroplating devices, and relates to a combined type electroplating device for cavity type parts with locally-silvered excircles, which comprises a protective sleeve, a protective plug and a tool, the tool comprises a conductive contact piece, a bearing support and a main frame, the conductive contact piece is connected with the main frame, and the main frame is connected with the bearing support; the bearing support comprises a main shaft and supporting frames symmetrically connected to the two ends of the main shaft. The main shaft is vertically connected with the main frame, and the supporting frame is vertically connected with the main shaft and is parallel to the main frame; during use, a to-be-plated part is placed on the supporting frame, the protective sleeve is arranged on the middle outer circle face area of the to-be-plated part in a sleeving mode, and the protective plug is embedded into an upper end hole of the to-be-plated part. The mode of dip-coating peelable rubber for insulation protection is replaced, protection of the inner cavity and the middle outer circle face area of the cavity type outer circle local silver plating part is achieved, and local silver plating is conducted on the outer circle faces at the two ends.

The utility model discloses an intelligent silver plating tank for new energy automobile parts, and relates to the field of new energy automobile part processing, the intelligent silver plating tank comprises a plate surface, the two sides of the upper end of the plate surface are fixedly connected with mounting racks, the upper ends of the mounting racks are provided with drying assemblies, and the surface of the plate surface is provided with a silver plating box; and a circulating assembly is arranged in the mounting frame and comprises synchronous wheels rotationally connected to the inner side of the mounting frame, and the outer surfaces of the synchronous wheels are in transmission connection through a synchronous belt. By the adoption of the structure, parts enter the plating solution in the silver plating box along with the synchronous belt, silver plating is completed in the circulating moving process, and then the parts leave the silver plating box, so that the circulating moving silver plating process of the parts is achieved, and the parts can make uniform contact with the plating solution through circulating moving; the problems of different silver plating thickness, rough surface and the like caused by non-uniform flowing of the plating solution during silver plating at a fixed position are avoided, the silver plating quality is greatly improved, and the defective rate is reduced.

The invention relates to the technical field of stainless steel fastener surface machining, in particular to a nickel plating process which comprises the steps of S01, abrasive paper wiping and hanging; step S02, performing high-temperature ultrasonic oil removal; step S03, washing with water and electrolyzing; s04, water washing, copper polishing and first hydrochloric acid activation are carried out; s05, washing with water and ammonia nickel; s06, water washing, drying, secondary cathode electrolysis and secondary hydrochloric acid activation are carried out; s07, silver pre-plating and bright silver plating are carried out; s08, silver protection, water washing and drying; and step S09, appearance inspection and packaging. A nanoscale nickel crystal nucleus is formed through ammonia nickel treatment, so that the problem of plating layer cracking caused by stress concentration of a workpiece can be effectively avoided; by plating silver outside the nickel plating layer, the nickel plating layer can be effectively protected from being corroded, and the salt spray resistance of the workpiece is improved; the problems that in the prior art, a plating layer is extremely prone to falling off in a bending test, and the salt spray resistance is poor are solved.

The invention relates to the technical field of metal coating determination, and discloses an LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP-MS. The LA-ICP- Step 2, performing laser ablation on the ablation area for multiple times, and generating corresponding sample aerosol in each ablation; step 3, carrying out denudation analysis on five gold standard samples with gradient gold contents, analyzing the contents of impurity elements in the plating layer through a standard curve method, summing the contents of the impurity elements, and then carrying out subtraction to calculate the gold content of the plating layer; and 4, when the Ag element content detected in the step 3 is exponentially increased for the first time compared with the Ag content analyzed after previous denudation and is larger than 0.1%, denudation is stopped, the denudation frequency is determined, and the coating thickness is calculated through a coating thickness measurement model. According to the testing method, accurate, efficient and micro-damage testing of the gold-plated and silver-plated ornament is realized.

The utility model relates to data transmission technical field, specifically including the conductor assembly, shielding layer, insulating layer and outer sheath that set successively from inside to outside, the conductor assembly includes at least two transmission core wires and a ground core wire, and each transmission core wire is by multiple silver plated copper core strands and is made, and the strand number is 16 24, and single copper core diameter is 0.08 0.12mm, shielding layer is the composite structure, including the aluminium foil shielding layer of inner layer and the braided shielding layer of outer layer, and the thickness of aluminium foil shielding layer is 0.02 0.04mm, and the braided shielding layer adopts the braiding of tinned copper wire and is made. The utility model discloses by setting up by multiple silver plated copper core strands and is made and the transmission core wire structure of optimization twisted parameter (pitch 8 12mm, adjacent reverse twisting), replaces the signal amplification function of multiple amplifiers in the prior art, realizes long distance transmission signal low attenuation, low crosstalk effect at the same time, avoids the data line structure complex problem caused by the amplifier setting, and simplifies the overall structure design.