63 results about "Tin plating" patented technology

This utility model relates to an industrial electronic wire in the field of electronic wires, comprising a split stepped conductor, an insulating layer, and a composite shielding layer. The insulating layer is disposed on the outside of the split stepped conductor, and the composite shielding layer is disposed on the outside of the split stepped conductor. The split stepped conductor comprises a corrugated conductor, a first copper core, and a second copper core, with the first and second copper cores spirally wound in opposite directions on the surface of the corrugated conductor. The insulating layer comprises a layer of nano-ceramic modified polyolefin, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer, all layered and laminated. The aramid fiber reinforced epoxy resin layer has embedded protrusions. The composite shielding layer comprises a tin-plated copper wire braided mesh, an aluminum foil strip, and a hot-melt conductive adhesive, with the tin-plated copper wire braided mesh and the aluminum foil strip spirally wound alternately. This utility model enhances mechanical strength through the split stepped conductor structure, and improves interface bonding and electromagnetic shielding durability through multi-layer composite and anchoring design.

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.

This utility model discloses a highly flexible, electromagnetic interference-resistant cable for robots, comprising a double-layer conductor bundle with a Kevlar fiber rope at its center. The space between the inner and outer conductor bundles, and between the inner and outer conductor bundles and the Kevlar fiber rope, is filled with thermoplastic elastomer and foamed silicone. The conductor bundles are spirally twisted in opposite directions at different pitches. The cable is surrounded by braided aramid fibers, an insulation layer, an inner shielding layer, an outer shielding layer, and a sheath layer. The sheath has semi-circular ribs and embedded elastic polyurethane strips. The thermoplastic elastomer is a polyurethane-based material, the foamed silicone is phenyl silicone rubber, the insulation layer is nano-silica modified methyl vinyl silicone rubber, the inner shielding layer is copper foil wrapped with a polytetrafluoroethylene self-lubricating coating, the outer shielding layer is tin-plated copper wire braid, and the sheath layer is a blend of polyurethane and silicone rubber coated with a nano-ceramic coating. This cable exhibits a long dynamic bending life under extreme environments, improves high-frequency shielding effectiveness, and is suitable for high-frequency movements of industrial robots and complex electromagnetic environments.

The manufacturing method of the composite metal film comprises the following steps: cleaning a metal substrate; plating a nickel film on the surface of the metal substrate; performing ion etching on the nickel film to form a honeycomb surface; plating a tin film on the nickel film; and performing ion etching on the tin film to form a honeycomb surface. The method is simple in process and low in cost, and can form a film body on the metal substrate, which is stable in combination and performance, resistant to corrosion and low in stress, thereby prolonging the service life.

The application belongs to the technical field of tinning machines, and discloses a tinning machine coating uniformity control device, which comprises a stirring barrel, a spray piece is fixedly connected to the lower end of the stirring barrel in communication, a first ring groove is formed in the outer surface of the stirring barrel, a second ring groove is formed in the inner wall of the stirring barrel, a first circular block is arranged at the inner center of the stirring barrel, a second circular block is rotatably connected to the lower end of the first circular block, first fan-shaped pieces are fixedly connected to the outer surface of the first circular block uniformly, and second fan-shaped pieces are fixedly connected to the outer surface of the second circular block uniformly; the second fan-shaped pieces can be attached to the lower end of the first fan-shaped pieces to rotate, so as to adjust the gap between the second fan-shaped pieces and the first fan-shaped pieces, thereby adjusting the rate and flow of tinning liquid discharge; through the magnetic connection of the magnetic attraction ring and the magnetic attraction plate, the rotating ring and the arc-shaped block can be connected into a whole, so that the rotation of the rotating ring can synchronously drive the second fan-shaped pieces to rotate at the lower end of the first fan-shaped pieces.

The application discloses a kind of high-performance tin copper composite conductive paste and preparation method thereof, belong to electronic material technical field.The conductive paste is by tin copper composite powder 60-85%, tin alloy powder 3-12%, organic carrier 10-25%, functional additive 1-5% by mass percentage;Wherein the tin copper composite powder is the surface chemical tin copper powder of three-stage particle size gradient compounding, the tin alloy powder is the gradient melting point alloy powder that Sn58Bi, Sn3.5Ag, Sn0.7Cu are proportionally compounded.The application is synergistically designed by multistage particle size powder and gradient melting alloy, and dense metallurgical bonding conductive network can be formed at low temperature, and the core pain points of existing copper-based conductive paste, such as easy oxidation, high sintering temperature, insufficient conductivity, poor printing stability, are solved.The prepared paste has high conductivity, excellent oxidation resistance, low sintering temperature, good printing suitability and strong adhesion, and can be widely applied in integrated circuit packaging, flexible electronics, solar cells and other fields.

The application relates to the technical field of cables, and discloses a high-strength and high-wear-resistance cable and a preparation method thereof. The high-strength and high-wear-resistance cable comprises, from inside to outside, a conductor, a conductor shielding layer, an insulation layer, a braided shielding layer and a sheath layer. The conductor is composed of multiple tin-plated copper wires. The raw materials of the sheath layer comprise the following components in parts by weight: butadiene styrene rubber 60-80 parts, butyronitrile rubber 20-30 parts, fillers 30-40 parts, molybdenum disulfide 5-8 parts, an activator 4-6 parts, aromatic oil 2-4 parts, an anti-aging agent 3-5 parts, a vulcanizing agent 2-4 parts and a promoter 3-5 parts. The above technical scheme solves the problems of insufficient strength and wear resistance of the cable sheath layer in the related art.

This invention relates to the field of photovoltaic connection cable technology, specifically a connection cable for offshore floating photovoltaic modules. The cable comprises a conductor, an insulation layer, a sheath layer, and a connector. The conductor is made of tin-plated stranded soft copper, the insulation layer is made of ethylene propylene rubber modified with a hydroxyl-terminant, and the sheath layer is made of polyether-type thermoplastic polyurethane. Through optimized material formulations and synergistic thickness ratios of each structural layer, this invention enables the cable to possess excellent seawater corrosion resistance, high dynamic bending life, and a service life of up to twenty-five years, making it suitable for inter-module connections in deep-sea floating photovoltaic power plants.

The present invention provides: an aqueous composition capable of removing a photoresist from a printed wiring board or a semiconductor wafer while preventing corrosion of tin plating and tin alloy plating in addition to a copper wiring; and a method for removing a photoresist using the aqueous composition. The aqueous composition according to the present invention is characterized by comprising an alkanolamine (A), a quaternary ammonium hydroxide (B), a sugar alcohol (C), a polar organic solvent (D), and water (E), wherein, with respect to the total amount of the composition, the content of the alkanolamine (A) is 2.5-50 mass %, the content of the quaternary ammonium hydroxide (B) is 0.5-4 mass %, and the content of the sugar alcohol (C) is 0.5-20 mass %.

This invention belongs to the field of copper wire galvanizing technology, and specifically relates to an external surface treatment device for copper wire tin plating. It includes: a treatment box, and an oil-immersing wheel group, a polishing wheel group, and a rinsing wheel group installed inside the treatment box. The oil-immersing wheel group, polishing wheel group, and rinsing wheel group guide and convey the copper wire to be treated. A polishing mechanism is used to grind and polish the copper wire passing through the polishing wheel group. Through the cooperation between the treatment box, the oil-immersing wheel group, the polishing wheel group, the rinsing wheel group, the polishing mechanism, the rinsing mechanism, and the drying mechanism, the oil-immersing wheel group, the polishing wheel group, and the rinsing wheel group guide the copper wire requiring surface treatment, thereby conveying the copper wire within the same reference plane. This allows for sequential degreasing, polishing, rinsing, and drying, achieving continuity of multi-process copper wire treatment. This avoids secondary contamination during copper wire surface treatment, thereby improving the cleanliness of the copper wire surface before tin plating and enhancing the quality of copper wire tin plating.

This application relates to the fields of energy conservation, environmental protection, and tinplate production technology, and particularly to a method for preparing tinplate. The method includes: water quenching an annealed steel coil, controlling the chloride ion content and conductivity of the solution used in the water quenching process; performing staged cleaning on the water-quenched annealed steel coil, followed by tin plating to obtain a tinplate; using a flux to soften the tinplate, setting the softening temperature according to the thickness of the tinplate; passivating the softened tinplate, followed by oiling, to obtain the tinplate product. This application solves the technical problem of poor corrosion resistance in existing tinplate.

The utility model discloses high corrosion -resistant automobile parts bright tin plating equipment relates to automobile parts electroplating equipment technical field, including electroplating box, both sides in the electroplating box are fixedly connected with anode plate, one side of the electroplating box is equipped with adjusting assembly, one side of adjusting assembly is equipped with cathode fixture. The utility model adopts above -mentioned structure, through setting up mixing component, utilize multiple raw material storage jar to store tin, cobalt and other raw materials respectively, and the metering pump on the feeding pipe can accurately control the conveying capacity of each raw material, makes raw material to enter the mixer fully mixed after the preset proportion, passes through the feeding pipe and the steady conveying of feed pump to the electroplating box again, avoids the error of manual proportioning and the insufficiency of simple stirring, effectively guarantees the stability of electroplating solution composition, ensures each alloy element content in plating even, and then promotes the density and the binding force of plating, reduces the fluctuation of plating corrosion resistance, satisfies the use requirement of automobile parts under the complex environment.

This invention relates to the field of metal surface treatment technology, specifically to tin-plated copper wire for preventing tin plating layer peeling and its production process. The production process of the tin-plated copper wire for preventing tin plating layer peeling includes: preparing a nano-alumina-pillared nano-graphene sheet composite material; pretreatment; pulse electroplating; post-plating washing; and passivation sealing. This invention first disperses carboxyl-modified graphene in anhydrous ethanol, then adds an aluminum source precursor. Electrostatic self-assembly allows the aluminum source to be adsorbed onto the graphene sheet surface. After acid-catalyzed gelation, aging, and calcination heat treatment, a nano-alumina-pillared nano-graphene sheet composite material is obtained. This composite material is then added together with polytetrafluoroethylene (PTFE) particles to a mixed tin plating solution. After pulse electroplating of the pretreated copper wire, the nano-alumina-pillared nano-graphene sheets and PTFE particles synergistically improve the bonding force between the tin plating layer and the copper wire substrate, thereby effectively preventing tin plating layer peeling.

A kind of capacitor structure, including capacitor core (1), copper plate (2), tinned braided copper wire (3), lead terminal (4), anti-torsion plate (5), stainless steel shell (6), insulating plate (7) and potting material (8), wherein: two electroplating surfaces of capacitor core (1) are connected with two copper plates (2) respectively, one side copper plate (2) is connected with the bottom of one lead terminal (4) by tinned braided copper wire (3), and the other side copper plate (2) is connected with another lead terminal (4);Anti-torsion plate (5) is installed in the lower part of lead terminal (4), and anti-torsion plate (5) is in the shape of waist circle;The bottom and periphery of capacitor core (1) are isolated from stainless steel shell (6) by insulating plate (7).The capacitor structure of the utility model is simple, and spare and accessory processing is simple, can be used in different combination of standard spare and accessory to process and use.

The application discloses a kind of high flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable and preparation method thereof, belong to cable manufacturing technical field, from inside to outside include optical fiber unit, conductor layer, insulating layer, shielding layer, anticorrosive layer and sheath layer in sequence.Optical fiber unit uses ceramicized silicone rubber buffer layer;Conductor layer is nickel-plated copper alloy stranded wire, and oxidation resistance is enhanced by nano titanium dioxide sol treatment;Insulating layer is three-layer co-extrusion structure;Shielding layer uses aluminum-plastic composite tape and plated tin copper wire braided composite structure;Anticorrosive layer is polytetrafluoroethylene film treated by plasma;Sheath layer uses two-component ceramicized silicone rubber, and it is flexible at room temperature vulcanization, and it is converted into ceramic body at high temperature.The application realizes excellent continuous use stability, strong corrosion resistance in salt spray environment and other performances through the synergistic design of multilayer structure, is suitable for high temperature, corrosion, fire and other harsh environments, significantly improves the safety and durability of composite cable.

The application discloses a continuous tinned copper wire pickling and drying integrated equipment, which comprises a cleaning tank box, a detachable sealing clamping plate arranged on the upper part of the cleaning tank box, a servo motor fixedly arranged on the upper part of the sealing clamping plate through a motor base, and a screening assembly slidably arranged on the inner end face bottom of the cleaning tank box, and the screening assembly is used for reciprocating screening of acid liquor. When the acid liquor after tinned copper wire pickling is reflux filtered, the transmission turntable can slide and limit the guide clamping shaft and the guide sliding plate, drive multiple groups of filter screens to screen and filter the acid liquor containing impurities layer by layer, and then remove various large-particle impurities in the acid liquor. Meanwhile, the stepping motor can drive three groups of filter plates to centrifugally filter the acid liquor for multiple times through the driving gear and the driven gear, effectively improve the efficiency of the equipment for multistage cleaning of the refluxed acid liquor, and thus improve the efficiency and stability of the subsequent continuous pickling of the acid liquor on the tinned copper wire.

This invention discloses a thermal gradient separation device and method for waste tin-plated copper strip, relating to the field of tin-plated copper strip separation technology. It includes a fixed base plate, a separation unit fixedly mounted on the fixed base plate, a screening unit fixedly mounted on the separation unit, and a combustion unit fixedly mounted on the fixed base plate, with the combustion unit fixedly connected to the separation unit. This invention achieves preliminary separation of copper and lead-tin alloys by utilizing the difference in metal melting points, followed by deep purification of lead and tin through vacuum distillation. The entire process is free of impurities, resulting in extremely high purity of the recovered copper, tin, and lead. It also avoids the loss of copper and waste of lead in wet processes, achieving efficient recovery of the three metals and improving resource utilization. The nitrogen inert atmosphere effectively isolates oxygen, preventing metal oxidation and maintaining the pure metal state of the recovered materials. Furthermore, nitrogen can be recycled for heating, reducing energy consumption and improving resource recovery efficiency.

This invention relates to the field of waste gas purification and treatment technology, and discloses an online purification and treatment device for tin-plated waste gas produced from tin-plated stranded wire. The device includes a spray tower, a spray treatment device disposed within the spray tower, an air inlet pipe disposed on one side of the spray tower, and a mixing mechanism disposed within the air inlet pipe. The mixing mechanism includes a mixing unit disposed within the air inlet pipe and a mixing enhancement unit disposed within the mixing unit to enhance the mixing effect. The mixing unit includes a mixing pipe disposed within the air inlet pipe and a guide block disposed within the mixing pipe. By combining bidirectional flow guidance with rotating turbulence, the airflow stratification phenomenon of high central velocity and slow sidewall velocity within the air inlet pipe can be effectively eliminated, allowing the waste gas containing tin-based dust, oil mist, and volatile organic compounds to be uniformly mixed. This avoids localized accumulation of pollutants and short-circuiting of airflow, providing stable and uniform air intake conditions for subsequent spray purification, significantly improving gas-liquid contact, and ensuring pollutant removal efficiency.

This utility model belongs to the field of electroplating technology and discloses a steel strip for clamping packaged chip strips. The lower end of the steel strip body is provided with multiple conductive supports, each corresponding to an elastic clip. The upper end of the elastic clip is connected to the steel strip body above the conductive support, and the lower end of the elastic clip is the clamping end that cooperates with the conductive support to clamp the packaged chip strip. The clamping end of the elastic clip is provided with a first insulator molded into shape, and a second insulator is molded onto the conductive support. A conductive contact point is provided on one side of the bottom of the conductive support. The conductive contact point cooperates with the lower end of the first insulator to clamp the packaged chip strip. When the conductive contact point abuts against the lower end of the first insulator, the lower end of the first insulator covers the conductive contact point. This utility model minimizes the tin plating of the conductive supports and elastic clips, reducing energy loss during electroplating and minimizing the need for deplating after material handling.

The application relates to the technical field of integrated busbars and discloses a laminated busbar. The integrated busbar comprises a bottom UV film, a busbar, an upper UV film, a PCB cluster plate, a temperature sensor and a plurality of tinned copper wires; the width of the upper UV film is smaller than the width of the bottom UV film in the radial direction of the upper UV film; the plurality of tinned copper wires are all covered between the bottom UV film and the upper UV film, one end of the tinned copper wire is connected with the PCB cluster plate in signal, the other end of the tinned copper wire is bent along the radial direction of the upper UV film and is connected with the busbar in signal, the busbar is fixed on the bottom UV film, the temperature sensor is fixed on the upper surface of the bottom UV film, and the temperature sensor is connected with the tinned copper wire in signal. The integrated busbar optimizes the existing integrated busbar structure, thereby improving the production efficiency and reducing the production cost.

The utility model discloses a kind of tin silyl manufacturing equipment for etching tin-plated electrode using plasma, belong to special gas manufacturing technical field.The tin silyl manufacturing equipment includes reaction chamber, tin-plated electrode, gas delivery system and quartz microbalance;The tin-plated electrode is set in the reaction chamber and is electrically connected with external radio frequency power supply by electrode cable;The gas delivery system is communicated with reaction chamber and is used for quantitative delivery argon, nitrogen, hydrogen to reaction chamber;The measuring end of quartz microbalance is located inside reaction chamber;Tin silyl can be generated in situ, complex pretreatment and post-separation step are omitted, continuous production is realized, and the risk of flammable and explosive risk in storage and transportation link is avoided;Through the mode that high-energy particles in hydrogen plasma bombard tin-plated electrode surface to generate tin silyl, reaction cycle is short, and tin-plated electrode raw material cost is low.

This invention relates to the field of electroplating waste resource utilization technology, specifically a method and equipment for preparing tin oxide from tin plating sludge. The method includes a box-type dryer, a crushing box, a box-type high-temperature furnace, a tubular atmosphere furnace, and a vibrating screen. A support frame is fixedly connected to the lower part of the crushing box, and a spring is fixedly connected to the top of the support frame. A screening plate is fixedly connected to the top of the spring. A rotating rod is rotatably connected through the crushing box, and an eccentric wheel is fixedly connected to the outer ring of the rotating rod. A discharge port is opened on the left side of the crushing box. Two rotating shafts are rotatably connected through the upper part of the crushing box, and crushing rollers and gears are fixedly connected to the outer rings of the rotating shafts. This method eliminates the need for acid washing or alkali washing to remove organic matter from the tin sludge, directly utilizing the carbon powder formed after the organic impurities in the tin sludge are carbonized as a reducing agent. The process involves fewer steps and is simple to operate.

This invention relates to the field of COF carrier technology, and more particularly to a COF carrier and its preparation method. The preparation method includes the following steps in sequence: coating, exposure, development, etching, micro-etching, first chemical tin plating, first baking, solder resist printing, second chemical tin plating, and second baking; wherein, the tin layer thickness of the first chemical tin plating is 0.05~0.08μm; the first baking makes the tin layer completely become a copper-tin alloy; solder resist printing uniformly prints a layer of ink on the non-lead area of ​​the carrier; and the second chemical tin plating is performed only on the lead area of ​​the carrier. This invention, by adjusting the production process and unfolding sequence of the COF carrier, and through the micro-etching process after desmearing and the second tin plating process, increases the copper content and reduces the amount of copper-tin alloy formed by the structural design of the COF carrier, thereby increasing the pure copper ratio of the circuit, improving the heat dissipation capacity of the COF carrier, and enhancing the packaging and testing efficiency of the COF carrier at the packaging and testing end.

This invention relates to the fields of Internet of Things (IoT) and industrial process monitoring and control technology, specifically to a monitoring and control method and system for the tinning process of semiconductor components based on IoT. The method includes: constructing a multi-source collaborative acquisition system; establishing a continuous spatiotemporal mapping field for the tinning process through time alignment and spatial trajectory binding; extracting the time change rate and spatial expansion characteristics based on this mapping field to construct a unified state evolution index for identifying process stages and determining deviation trends; performing local micro-environment modeling and multi-variable collaborative regulation for deviation areas to bring the tinning process back to the target evolution trajectory; constructing a defect precursor fragment library by backtracking the entire process data; matching precursor patterns and implementing lightweight interventions in real-time production; and forming a self-learning mechanism through feedback optimization. This invention achieves a shift from static parameter judgment to dynamic process evolution judgment, and from passive correction to proactive prevention, effectively improving the stability and consistency of tinning quality.

This invention discloses a highly flexible, low-smoke, halogen-free insulated shielded cable and its preparation method. The conductor is manufactured using a layered staggered stranding process and filled with flexible fiber bundles, combined with low-temperature annealing under inert gas protection, which eliminates the internal stress of stranding and enhances the bending resistance of the conductor core. The insulation material uses a multi-resin compound as the matrix, and the composite flame retardant is surface modified and a compound toughening agent is added to optimize the compatibility between the flame retardant and the matrix, avoiding material embrittlement. The three-layer co-extruded insulation layer structure further improves the flexibility and buffering performance of the insulation part. The composite shielding structure, which combines aluminum-plastic composite tape wrapping with tin-plated ultrafine copper wire double oblique braiding, ensures effective shielding against external electromagnetic interference and guarantees signal transmission quality. Furthermore, the application of flexible adhesive and the filling of flame-retardant sealant alleviate the problem of increased rigidity caused by high-density shielding.

This invention relates to the field of alloy materials technology and discloses a high-adhesion tin-plated sheet and its manufacturing method. The preparation method includes sequentially pre-treating a steel strip, electroplating with tin, remelting, passivation, rinsing, drying, cooling, and oiling to obtain a tin-plated sheet. The drying step employs a combination of hot air drying and high-frequency induction heating to dry the passivation film of a specific thickness. This promotes the full conversion of Cr(OH)3 on the surface of the passivation film to Cr2O3, removes the water of crystallization from the surface of the passivation film, and achieves stable control of the Cr(OH)3 content in the passivation film at 10%-20%. This solves the problem of poor adhesion caused by high Cr(OH)3 content in existing technologies, enabling the tin-plated sheet obtained by this invention to consistently achieve Grade 1 adhesion. It is widely applicable to various surfaces such as B-side, R-side, S-side, and M-side, and can be used with a tin plating amount of 1.1 g / m². 2 -11.2g / m 2 Tin-plated sheet.

This invention belongs to the field of superconducting wire technology and relates to a WIC superconducting wire and its preparation method. The invention provides a method for preparing a WIC superconducting wire, comprising: selecting a superconducting round wire and an aluminum groove wire matching the size of the superconducting round wire; threading the superconducting round wire into the groove of the aluminum groove wire; filling the groove between the aluminum groove wire and the superconducting round wire with a metal powder mixture; and finally obtaining the aluminum groove wire WIC superconducting wire through induction heating and hot-dip tin plating; wherein the metal powder mixture is composed of tin powder, aluminum powder, and titanium powder. This invention adds a metal powder mixture at the junction between the aluminum groove wire and the superconducting round wire, aiming to solve the technical problems of low RRR value and insufficient bonding strength in aluminum-based WIC superconducting wires.

The utility model relates to a kind of display devices for enhancing coating adhesion, comprising: tin plating film layer, titanium dioxide layer, titanium carbide layer are set on the front surface of glass cover plate, temperature-sensitive color ink layer, titanium nitride layer and electromagnetic layer are set on the back surface of glass cover plate, plating film cover plate and display screen module are enclosed together by frame.The utility model sets a layer of tin plating film layer on glass cover plate first, to enhance the adhesion of subsequent coating, display screen module is connected with plating film cover plate by electromagnetic layer, convenient connection, simple process, frame is set on the periphery of glass cover plate, glass cover plate and display screen module are enclosed in frame, which helps to improve production efficiency.