336 results about "Metallic coating" patented technology

The invention discloses a photoelectric composite aluminum alloy conductor aerospace cable and a preparation method, and belongs to the technical field of photoelectric composite cables, the cable comprises an optical fiber unit, a conductor unit, an insulating layer, an anti-electromagnetic unit and a sheath layer; the anti-electromagnetic unit is obtained by weaving double-layer metallized polyimide fibers; the double-layer metallized polyimide fiber sequentially comprises a polyimide fiber, a first metal coating and a second metal coating from inside to outside. The surface of the polyimide fiber is coated with modified polydopamine; the first metal coating is copper; and the second metal coating is silver and / or nickel. The double-layer metal coating can form a more compact metal outer layer on the surface of the polyimide fiber, the requirements of the severe external environment of aerospace are met, a conductive network with higher stability is formed, and the electromagnetic shielding effect is remarkably improved. Moreover, the polyimide fiber is coated with a polydopamine coating, so that the fiber is not damaged, and the overall high and low temperature resistance and radiation resistance can be improved.

The invention discloses an electroplating process method for preparing a deep-etching thick metal mask, and belongs to the technical field of micro electro mechanical system electroplating processes. Comprising the following steps: firstly, carrying out photoetching and patterning on the surface of a wafer by using positive photoresist; then, carrying out seed layer sputtering on the wafer subjected to pattern photoetching, and forming a to-be-electroplated region with a preset pattern through a stripping process; then, photoetching is carried out on the to-be-electroplated area through negative photoresist, and a thick photoresist layer with the thickness larger than that of a preset metal coating is formed; and finally, the electroplating area is electroplated, and the metal coating with the preset thickness is obtained. According to the method, the negative photoresist process is adopted, so that the transverse growth of the metal coating is effectively inhibited, the perpendicularity of the side wall of the metal coating is improved, and meanwhile, the damage to the surface of the wafer when the seed layer in the non-electroplating area is removed is avoided. The problems that mushroom-shaped protrusions are easily formed on the edge of a plating layer, crystal grains are coarsened and the like in the electroplating process of an existing electroplating method are solved.

A steel sheet, coated with a metallic coating including, by weight percent, from 7.5 to 9.0% of zinc, from 1.1 to 4.0% of silicon, from 1.1 to 8.0% of magnesium, up to 3.0% of iron, optional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each element being less than 0.3%, optionally up to 100 ppm of Calcium and unavoidable impurities up to 0.02%, a balance being aluminum, and wherein the coating weight of the metallic coating is from 50 to 500 g / m2 for the sum of both sides of the-steel sheet.

The invention discloses a multi-layer polymeric membrane functional current collector and a preparation method thereof, a pole piece and a battery, and the preparation process comprises the following steps: S1, blending and granulating ultra-high molecular weight polyethylene and high density polyethylene to prepare a composite layer raw material; s2, adding the composite layer raw material and the middle layer nylon raw material into a screw extruder, and carrying out co-extrusion casting to form a composite layer-middle layer-composite layer three-layer structure film; s3, carrying out plasma activation treatment on the obtained three-layer structure film; s4, forming nanoscale pits in the outer surface of the three-layer structure film by dipping the three-layer structure film in the treating fluid; and S5, preparing a metal layer on the outer side of the three-layer structure film to obtain the multi-layer polymer film functional current collector. Through material blending optimization, multi-layer structure design and surface functionalization treatment, the mechanical property and dimensional stability of the current collector base film and the binding force between the current collector base film and a metal coating are remarkably improved.

The invention discloses an optical measurement device for an engine flow field, and relates to the technical field of optical measurement. The transmitting end module and the receiving end module are arranged on two walls of an engine to be tested and are provided with opposite lens type end caps; the transmitting end module comprises a built-in metal coating high-temperature single-mode optical fiber; one end of the single-mode optical fiber is connected with a lens type end cap of the transmitting end module to form an integrated laser transmitting probe; the receiving end module comprises a built-in metal coating high-temperature multimode optical fiber and a detector; one end of the multimode optical fiber is connected with a lens type end cap of the receiving end module to form an integrated laser coupling probe; and a receiving and transmitting light path pair penetrating through an engine combustion area is formed between the lens type end caps of the transmitting end module and the receiving end module. Water vapor between a window sheet and an optical probe collimating lens and between the collimating lens and an optical fiber core in a traditional measurement module is eliminated, and the measurement precision of an engine flow field combustion area is improved.

The invention provides a miniature corrugated pipe machining technology and application, a miniature corrugated pipe is formed based on metal material machining, the miniature corrugated pipe is provided with a main body part, a plurality of extension parts are formed at one end of the main body part, and the extension parts are symmetrically arranged according to the axis of the main body part. According to the method, a metal material is machined into a designed shape through machining, then a thin metal coating is formed on the periphery of the metal material through an electrochemical process, useful parts are cut off through machining, and finally, original metal in the middle of the useful parts is thoroughly corroded through the electrochemical process, so that a final finished product is obtained. The miniature corrugated pipe is easy to install, use, replace and discover abnormities, and the installation space is small.

A battery pack with electromagnetic compatibility (EMC) for an electric vehicle is presented that includes a battery pack housing, at least one battery module enclosed within the battery pack housing, and an electronics assembly enclosed within the battery pack housing, in which the electronics assembly comprises a DC-DC converter and an electronics assembly casing, wherein at least one of the electronics assembly and battery pack housing includes an electromagnetic interference (EMI) shield to enable EMC. The electronics assembly includes a battery management system (BMS) circuit board and a DC-DC converter control circuit board and a DC-DC converter power electronics board. The electronics assembly is of substantially a same dimension of a battery module, in which the EMI shield comprises at least one of a metallic screen, metallic wires, a metallic tape, a metallic sheet, a metallic coating, paramagnetic materials, carbon based materials and metallic and / or carbon particle-infused composites.

The invention belongs to the field of high-thermal-conductivity composite materials, and particularly relates to a 3D printing copper-diamond composite high-thermal-conductivity material and a preparation method thereof.The 3D printing copper-diamond composite high-thermal-conductivity material comprises a copper matrix and diamond particles dispersed in the copper matrix, and the surfaces of the diamond particles are provided with metal coatings; the copper matrix is formed by copper powder with the particle size of 10-100 microns, and the volume fraction of the diamond particles in the composite material is 40%-50%; according to the method, the titanium plating layer is prepared on the surface of the diamond, the stable titanium carbide transition layer is formed through the reaction of titanium and carbon, the interface thermal resistance between the diamond and copper is remarkably reduced, the interface bonding strength is improved, and heat conduction is facilitated. The selected area green laser 3D printing technology is adopted, a green laser device shows remarkable advantages in the field of 3D printing of copper alloy, and the heat conductivity of the prepared composite material can reach and is remarkably higher than that of pure copper by optimizing the diamond volume fraction and 3D printing process parameters.

The utility model relates to a decorative plate, in particular to an imitated metal texture metalized gauze multilayer plate which comprises a transparent layer, a metalized gauze layer, a bonding layer and a back plate layer which are sequentially arranged, and the metalized gauze layer comprises gauze and a metal coating arranged on the surface of the gauze. The metalized gauze multilayer board imitating the metal texture can achieve the effect of the metal texture, is not prone to color fading, and meanwhile can achieve multicolor overprinting, stereoscopic patterns and the like.

A coated steel sheet providing cathodic protection and suitable for manufacturing a press hardened part with good powdering resistance during press-hardening and good corrosion performance. A method for the manufacture of hardened parts starting from a steel sheet coated with a metallic coating. The part has good characteristics with respect to corrosion and powdering resistance. The present disclosure is particularly well suited for the manufacture of automotive vehicles.

A method for forming a metallic coating from a metallization liquid, the metallization liquid comprising at least one metal ionic precursor, at least one structuring liquid, at least one propelling liquid. The at least one metal ionic precursor comprises at least one metal cation and at least one counterion, the at least one structuring liquid for dissolving the at least one metal ionic precursor in the metallization liquid, the at least one propelling liquid for nebulizing the metallization liquid. The method comprises applying the metallization liquid on a substrate, and exposing the metallization liquid to a plasma at atmospheric conditions, thereby obtaining the metallic coating.

The invention provides a laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material and a preparation method thereof. The laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material is prepared from the following components in percentage by weight: 39%-69.5% of PEEK resin, 20%-40% of low-dielectric flat glass fiber, 5%-10% of low-dielectric filler, 5%-10% of Cu-Ni coordination compound and 0.5%-1% of antioxidant. According to the invention, the Cu-Ni coordination compound is added into the PEEK modified material, then the PEEK modified material is subjected to laser induction treatment with a specific wave band, reducing cuprous ions or nickel ions are obtained on the surface layer of the PEEK modified material, and then the reducing cuprous ions or nickel ions are catalytically reduced into metal atoms through an electroplating process, so that the metal layer is embedded into the PEEK base material, and the binding force between the metal coating and the PEEK base material is improved.

The utility model discloses a flexible circuit board with high strength and bending resistance, which comprises a flexible circuit substrate and a conductive copper layer, the thickness of the conductive copper layer in a circuit bending area is larger than that of the conductive copper layer in a conducting circuit area, and a plurality of equidistant grooves are formed in the conductive copper layer in the circuit bending area so as to improve the bending resistance. The thicker copper layer can better resist stress and deformation generated during bending, and the groove design can buffer stress concentration and line extrusion deformation. In addition, the metal coating is laid on the upper surface of the conductive copper layer, the overall strength and corrosion resistance of the circuit board are improved, the upper surface of the metal coating is brushed with ink, the groove can store more ink, a solder mask protection layer is formed, the thickness and strength of the bending area are further increased, the bending curvature is relieved, the circuit board is prevented from being damaged by welding heat, and components and lines are protected.

The application belongs to the technical field of test and measurement, and particularly relates to a tight-field reflecting surface realized by building cement. The tight-field reflecting surface is used for low-frequency tight-field measurement and mainly comprises a cement support, a cement parabolic reflecting surface arranged on the cement support, a surface geometry of the cement parabolic reflecting surface being a parabolic surface with periodic side teeth, and a metal plating layer formed on the surface of the cement parabolic reflecting surface and used for providing a metal boundary condition for electromagnetic reflection. The application can greatly reduce manufacturing cost and effectively form a high-quality quiet zone in a low-frequency band.

Vehicle component (100) for a vehicle, with: a component body (101) which is formed from a core material (103), wherein the component body (101) has a locally limited deformation zone (105) which is arranged planarly in the core material (103), wherein the deformation zone (105) has a locally variable tensile strength according to a predetermined tensile strength profile in order to influence a deformation process of the component body (101) when a force is applied to the component body (101), wherein the component body (101) has a body surface, wherein a metallic coating is applied to the body surface, which is designed to prevent corrosion after manufacture and scaling during a hot forming process for the manufacture of the component body (101), wherein the coating comprises an aluminum-silicon alloy which, during the hot forming process, forms a stable alloy layer system with the core material to provide corrosion and scaling protection for the component body, wherein the vehicle component (100) is a hot-formed vehicle component, wherein the vehicle component (100) is a vehicle column, wherein the component body (101) has a body surface (401) and a sheet thickness (403) which describes the material thickness of the component body (101) in the direction of a surface normal (405) of the body surface (401), and wherein the deformation zone (105) completely penetrates the component body (101) with respect to the sheet thickness (403) and has an edge region which follows a perimeter of the deformation zone (105) on the body surface (401), and wherein the tensile strength in the edge region approaches the tensile strength of the material of the component body (101) surrounding the deformation zone (105) in order to form a homogeneous tensile strength transition, wherein the component body (101) is made of steel core material (103) with a tensile strength R M,K is manufactured in a range of 1200 MPa to 2200 MPa, wherein the deformation zone (105) has a tensile strength R M,D exhibits a range of 450 MPa to 1100 MPa, wherein the component body (101) has a body surface (401) and the area of ​​the deformation zone (105) on the body surface (401) corresponds to at least 0.05 to 0.4 times the area of ​​the body surface (401), wherein the tensile strength of the deformation zone (105) decreases continuously towards a center point of the deformation zone (105), wherein at least two tensile strength plateaus (107-1, 107-2) are formed in the deformation zone (105), which have different tensile strengths relative to each other and to the core material (103).

The invention belongs to the technical field of microbial protection and functional metal coating preparation, and particularly relates to a preparation method of a metal-based graphene oxide and zirconium oxide composite antibacterial coating on a flexible metal foil through magnetic field assisted jet electrodeposition. According to the method, a metal ion electroplating solution containing graphene oxide and zirconium oxide serves as a raw material on a flexible metal substrate, ferromagnetic particles are introduced to serve as a carrier, one-time forming is carried out under the action of a magnetic field through the scanning jet electrodeposition technology, and efficient fixing and uniform distribution of graphene oxide and zirconium oxide in a metal coating are achieved. The prepared coating is compact in structure and high in binding force, after the coating is in contact culture with escherichia coli and staphylococcus aureus for half an hour, the antibacterial rate reaches 94% or above, the antibacterial rate reaches 97% or above, and the coating has excellent stability and reliability. The method disclosed by the invention is simple and convenient in process and high in adaptability, can form a high-performance antibacterial coating on a flexible substrate, is suitable for the antifouling and anticorrosion fields of public health facilities, marine protection and engineering equipment, and has a wide industrial application prospect.

The invention discloses a preparation method of a functional current collector. The preparation method comprises the following steps: step 1, heating and reacting raw materials containing a polyamide raw material, a copper source compound, a catalyst and a reducing agent in an inert atmosphere at 180-220 DEG C for 1-3.5 hours; heating and reacting for 1 to 2 hours under the condition of 230 to 265 DEG C; after the reaction is finished, vacuumizing to-0.07 to-0.08 MP to form a polyamide nano-copper composite material; 2, stirring the polyamide nano-copper composite material to prepare a thin film, so as to obtain a conductive base film; 3, grinding the surface of the conductive base film in an inert atmosphere, and removing dust; and 4, carrying out electroplating treatment on the ground conductive base film, and covering the surface of the conductive base film with a metal coating to obtain the functional current collector. According to the invention, polyamide and metal particles are compounded, water electroplating is directly carried out, and a magnetron sputtering process is not needed. And compared with the traditional magnetron sputtering and water-adding electroplating process for manufacturing the functional current collector, the process yield is improved.

The invention provides a titanium removal method of a solar cell and application thereof, and relates to the technical field of solar cell metallization, and the method comprises the following steps: carrying out the sintering of a solar cell with a titanium seed layer, and carrying out the titanium removal through a titanium removal solution under an ultrasonic condition, so as to obtain a titanium-removed solar cell; wherein the ultrasonic power of the ultrasonic condition is 20-40 kW; the titanium stripping solution comprises the following components in percentage by mass: 5-25% of acid, 5-25% of hydrogen peroxide, 1-5% of a dispersing agent and the balance of water. According to the method, the technical problems that unreacted titanium still exists on the surface layer of the sintered battery piece, meanwhile, the titanium easily forms an oxidation film, and adverse effects are generated on the follow-up process are solved, and the technical effects of efficiently and thoroughly removing the titanium and the oxidation film of the titanium and effectively improving the binding force of a metal coating and a base material are achieved.

The invention belongs to the technical field of conductive materials, and particularly relates to a method for preparing and activating pyridine functionalized swelling polymer microspheres and a method for preparing core-shell structure polymer conductive microspheres. The preparation method comprises the following steps: by taking polystyrene microspheres as seeds, preparing pyridine functionalized polymer microspheres through an emulsion swelling method, then introducing Pd < 2 + > ions through coordination, preparing activated microspheres with palladium nanoparticles uniformly coated on the surfaces of the polymer microspheres through in-situ reduction, preparing nickel-plated microspheres with uniform metal coatings through chemical plating, and finally preparing the polymer microspheres with uniform metal coatings. And finally, preparing the core-shell structure gold-plated polymer conductive microspheres through in-situ reduction, and applying the core-shell structure gold-plated polymer conductive microspheres to preparation of anisotropic conductive films. Through an emulsion swelling method, not only can the polymer microspheres with adjustable sizes be prepared, but also the polymer microspheres with different morphologies can be prepared. The preparation method of the conductive microspheres has the advantages of being wide in raw material source, easy and convenient to operate and adjustable in metal coating thickness, and is suitable for high-precision packaging in the microelectronic industry.

This invention specifically relates to a TPU high and low temperature film with a hot stamping and perforation effect and its preparation method. The TPU high and low temperature film includes a TPU film, a PU layer disposed on one surface of the TPU film, a hot stamping resin layer disposed sequentially on the other surface of the TPU film, a pattern layer disposed on the surface of the hot stamping resin layer away from the TPU film, a metal plating layer disposed on the surface of the pattern layer away from the hot stamping resin layer, and a hot melt adhesive film layer disposed on the surface of the metal plating layer away from the pattern layer. The resulting TPU high and low temperature film has good mechanical properties, adhesion, wear resistance, scratch resistance, and aging resistance. Its excellent antistatic ability also helps to broaden the application range of this TPU high and low temperature film.

An electronic device includes a substrate having substrate upper side and a conductive structure. An electronic component is coupled to the conductive structure. A vertical interconnect is coupled to the substrate upper side. An encapsulant covers the electronic component, the vertical interconnect, and the substrate upper side of the substrate. A first metallic coating includes a first metallic coating top side, a first metallic coating sidewall; and a first metallic coating thickness and a second metallic coating includes a second metallic coating thickness. The vertical interconnect is exposed from the encapsulant top side; and is coupled to the first metallic coating. The first metallic coating top side is over the encapsulant top side and over the encapsulant lateral side. The second metallic coating is over the encapsulant top side and the first metallic coating top side is interposed between the encapsulant top side and the second metallic coating.

The invention relates to a vacuum bottle liner coating process which comprises the following steps: (1) a feeding stage: sleeving an inner-layer or outer-layer glass piece of a vacuum bottle liner on a conveying device, and sequentially conveying the inner-layer or outer-layer glass piece of the vacuum bottle liner to a dust removal room and a paint spraying station through the conveying device; (2) electrostatic dust removal: performing non-contact dust removal on the inner and outer surfaces of the glass piece in a dust removal room by adopting an electrostatic gun; (3) spraying of a treating agent: feeding the glass part into a first spraying room, and uniformly spraying the treating agent through a spray gun to enhance the surface adhesion; (4) UV primer spraying is conducted, specifically, the glass part is conveyed to a second spraying room, and UV resin primer is sprayed through a multi-component layered spraying gun; (5) UV curing: curing the UV resin primer through ultraviolet irradiation to form a substrate layer; and (6) vacuum aluminum plating: placing the glass piece in an aluminum plating device, and depositing aluminum steam on the surface of the substrate layer to form a metal plating layer.

The invention relates to a method and a device for synchronously measuring the thicknesses of a metal coating and an oxide film layer of a fuel rod. The method comprises the following steps: acquiring corresponding sensing data when an eddy current detection probe senses the fuel rod at two distances; determining phase data and impedance amplitude data according to the sensing data; generating an inversion function model representing the relationship between the phase and the thickness of the metal coating and the relationship between the impedance amplitude and the thickness of the oxide film layer according to preset calibration data; and according to the phase data, the impedance amplitude data and the inversion function model, calculating the metal coating thickness and the oxide film thickness of the fuel rod. According to the invention, the thickness of the metal coating and the thickness of the oxide film layer of the fuel rod can be accurately measured on the basis of not damaging the cladding structure of the fuel rod.

This invention relates to the field of metal material processing technology. It discloses a synergistic composite forming process for metal wire electroforming and drawing, comprising the following steps: first, surface cleaning and activation treatment of the base metal wire to remove oxide layers, oil stains, and impurities; then, feeding the pretreated wire into an electroforming device to deposit a metal plating layer, obtaining an initial electroformed composite wire; subsequently, direct online radial high-pressure drawing to achieve a dense bond between the electroformed layer and the base metal; followed by annealing of the composite wire; repeating the electroforming, drawing, and annealing steps at least once to complete multiple synergistic cycles; finally, testing the dimensional accuracy, mechanical properties, and interlayer bonding force of the composite wire, and cutting it into finished products after passing the tests. This invention employs an online tandem synergistic process of electroforming and drawing, avoiding plating oxidation and interface contamination. Radial high-pressure drawing can compact the plating layer, eliminate porosity, and improve bonding density.

The utility model discloses a RC LED laser ware packaging module, include: heat sink base plate, the top of heat sink base plate is equipped with negative pole welding area and a plurality of positive pole welding area, and negative pole welding area and a plurality of positive pole welding area are all plated with metal plating, and the bottom of heat sink base plate is equipped with the negative pole pad of negative pole welding area electric connection and a plurality of respectively with corresponding positive pole pad electric connection positive pole pad, RC laser chip is located on negative pole welding area, and the top of RC laser chip is provided with a plurality of different luminous shape's luminous unit, and the negative pole of a plurality of luminous units extends to the bottom of RC laser chip and is electrically connected with negative pole welding area, and the positive pole of a plurality of luminous units is electrically connected with corresponding positive pole welding area respectively, anti -reflection coating, cover in heat sink base plate top. The utility model effectively solved the problem of the prior art in the reflection blur and the problem of the insufficient heat dissipation.

The invention relates to a flattened rolled steel sheet, comprising a steel substrate and a metal coating which is arranged on one or both sides of the steel substrate and which consists of zinc or an aluminum alloy, characterized in that the metal coating comprises a double-layer temporary corrosion protection layer, the double-layer temporary corrosion protection layer includes an intermediate layer containing an organosilicon compound as a first layer and a second layer containing or consisting of a corrosion protection oil disposed on the first layer.

The application belongs to the technical field of medical packaging and decorative packaging, and particularly discloses a novel antibacterial material with a wire-weaving appearance, a product thereof and a preparation method of the antibacterial material. The antibacterial material comprises a woven mesh cloth with through mesh holes which is woven by resin filaments; the upper and lower surfaces and the periphery of the woven mesh cloth are covered with a metal plating layer; a flow-casting resin layer containing nano-silver particles is arranged below the woven mesh cloth, the flow-casting resin layer comprises an outer cover part and an inner embedding part which fills the mesh holes, and the filling depth of the inner embedding part does not exceed the height of the mesh holes; a transparent ink layer is arranged above the woven mesh cloth, and the surface of the transparent ink layer is incompletely covered with a UV coating layer; and a primer layer is arranged on the lower surface of the flow-casting resin layer. The antibacterial material has the advantages of long antibacterial life, low cost, safety and beauty, good water permeability and resistance to yellowing, and has a wide application prospect.

To provide a pretreatment cleaning agent for electroless plating and a method for forming electroless plating using the same that eliminate the need of surface roughening to a substrate with a strong acid such as a chromic acid or permanganic acid, can perform cleaning of the surface of a substrate and coupling treatment at the same time, and can form metal plating having a flat contact surface to a substrate.SOLUTION: A pretreatment cleaning agent for electroless plating includes an inorganic alkali, a cleaning agent including a surfactant, and a silane coupling agent and can perform cleaning of the surface of a substrate and coupling treatment at the same time.SELECTED DRAWING: Figure 1

The utility model discloses a kind of high-precision RGB edge-emitting laser lamp group module, it is related to optoelectronic packaging technical field, including copper substrate, the top of copper substrate is fixedly connected with chip bracket, the top of chip bracket is fixedly connected with several T table type silicon prism, the top of chip bracket is fixedly connected with edge-emitting laser chip assembly, the top of copper substrate is installed with glass optical window, the bottom of glass optical window is coated with metal plating, the device is through structural integration design, optical integration optimization and all inorganic packaging process, effectively improve the light path precision of edge-emitting laser chip assembly, structural stability, packaging reliability and thermal management performance, while significantly improve the automation assembly efficiency and reduce manufacturing cost, especially suitable for high-resolution display, complex environment lighting and laser system in the scene with higher precision and reliability requirement.