171 results about "Metallic coating" patented technology

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.

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.

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.

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.

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 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 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.

The utility model discloses a bright and elegant combined automobile decorative film, which comprises a transparent protective layer, a pattern layer, a metal coating, a bonding layer and a base material layer which are sequentially connected in a laminated manner. According to the automobile decorative film, the metal coating is laminated on the surface, back to the protective layer, of the pattern layer, so that the reflectivity to light is enhanced, and the transparent protective layer is matched, so that patterns displayed by the pattern layer can have bright and elegant metallic luster and visual effect, and the decorative effect of the decorative film is further enhanced.

The utility model discloses a composite pole piece and a full-tab high-nickel cylindrical battery cell passing a needling test at a lower temperature, the composite pole piece comprises foil layers, a macromolecule base film layer, an electrode slurry layer and a welding foil layer, the two end surfaces of the macromolecule base film layer are respectively provided with one foil layer, and the electrode slurry layer is provided with one welding foil layer. An electrode slurry layer and an empty foil area are arranged on the working end face of the foil layer; the welding end of the welding foil layer is welded to the empty foil area, and the free end of the welding foil layer exceeds the foil layer and is exposed out of the foil layer. According to the utility model, the structure of the battery cell pole piece is changed, the composite aluminum foil is used as a base material, the two end surfaces of the composite aluminum foil are coated with the positive active material, and the empty foil area of the composite aluminum foil is welded with the common aluminum foil extension tab area; after the cell is punctured, the local current density is sharply increased, so that the temperature of a punctured point rises, the macromolecular base film layer is melted and shrunk, and the metal coating on the macromolecular base film layer is pulled away from a punctured body to form a physical isolation strip, so that the short-circuit resistance is improved to a kiloohm level, the short-circuit current is inhibited, and the needling passing rate of the cell is improved.

An exhaust system that includes a catalytic converter, selective catalytic reduction system, a muffler and, for certain applications, a diesel particulate filter that each include at least one filter that has an electric heating element, a metallic coating and a plurality of metal rods extending therethrough. The combination of elements are configured to heat the internal housings of the exhaust system and disrupt the direction of flow of exhaust gases which contain harmful toxic gases and pollutants and aid in removing and / or reducing said toxic gases and pollutants.

The utility model discloses an explosion-proof metallized film used on a PFC power supply capacitor, which comprises a plastic film and a metal coating on the surface of the plastic film, the metallized film comprises a grid part square resistor, a net edge part and a screen belt, the width of the net edge part is larger than 1 / 3 of the film width and smaller than 1 / 2 of the film width, the width of the grid part square resistor is larger than 1 / 3 of the film width and smaller than the net edge part, and the screen belt is arranged on the surface of the plastic film. The screen belt is a blank transparent non-plating area, metal plating layers are arranged on the grid part square resistor and the screen edge part, and the screen belt is characterized in that the grid part square resistor and the screen edge part are separated by a plurality of non-plating grid strips A, the non-plating grid strips A are arranged between the grid part square resistor and the screen edge part, screen edge part insurance devices are arranged on the two sides of the non-plating grid strips A, and the non-plating grid strips A are arranged on the screen belt. And the grid part square resistor is connected with the net edge part through the net edge part fuse.

The application relates to the technical field of magnetic materials, and particularly discloses a production process of a permalloy CT energy-taking magnetic core suitable for small-current starting, which comprises strip preparation, surface coating, spiral molding, hot pressing diffusion and gradient heat treatment. The application adopts a spiral sheet structure thin strip as a magnetic core raw material for the first time, combines a PVD coated metal plating layer of inner Mo and outer Cr, designs a Cr-Mo-Cr gradient coating and subsequent heat diffusion, forms an outer hard inner lead structure, and the structure has diffusion and progressive layers in height, solves the contradiction between the soft magnetic lead and high hardness of the existing magnetic core, realizes metallurgical bonding between strip layers through a hot pressing diffusion process, and the product has excellent mechanical strength and interlayer bonding force; through accurate alloy component design and gradient heat treatment, the product has ultrahigh magnetic performance and extremely low starting current: mu i > 60,000, H c < 0.73 A / m, starting current < 0.5 mA.

The invention relates to the field of coatings, and particularly discloses a metal texture coating and a preparation method thereof.The metal texture coating is prepared from, by weight, 60-85 parts of polymer emulsion, 20-35 parts of modified aluminum paste, 0.5-1 part of dispersing agent, 0.5-1 part of antioxidant and 10-25 parts of water; the modified aluminum paste is prepared by the following steps: step 1, fully dispersing a coupling agent, a molecular sieve and aluminum paste to obtain a feed liquid; and 2, acidizing polyvinyl alcohol powder, carrying out full contact reaction on the acidized polyvinyl alcohol powder and the vaporous feed liquid, finally adding a surfactant, and uniformly stirring. The preparation method of the metal texture coating comprises the following steps: uniformly mixing and stirring the polymer emulsion, the modified aluminum paste, the dispersing agent, the antioxidant and the water. The coating prepared by the invention is excellent in metal texture, good in glossiness, and excellent in water resistance and adhesive force.

The utility model is applicable to the technical field of PVD (Physical Vapor Deposition), and provides a PVD jig which comprises a jig body and a metal coating formed on the surface of the jig body, and the jig body is completely coated with the metal coating; the jig body is made of plastic or soft rubber, and the metal coating is a single metal coating or a composite metal coating formed by compounding multiple metal coatings. According to the PVD jig, the PVD jig body is made of plastic or soft rubber materials, so that the processing difficulty of the PVD jig in a complex shape can be reduced, and the cost is low. The surface of the PVD jig body is plated with the metal coating, the jig body is completely wrapped by the metal coating, in the high-temperature PVD process, the metal coating on the surface can prevent gas or other substances generated in the heating process of plastic or soft rubber materials of the inner body from being volatilized, and therefore the PVD color and adhesive force are prevented from being affected.

The invention relates to the technical field of electronic components, in particular to a high-moisture-proof multi-layer resistor and a preparation method of the high-moisture-proof multi-layer resistor. The resistor comprises an aluminum oxide substrate, a front electrode, a back electrode and a resistance layer between the front electrode and the back electrode; a first protective layer made of glass, a second protective layer which correspondingly covers the laser cutting line groove and is made of thermosetting ink, a third protective layer and a fourth protective layer which are made of at least two layers of epoxy resin, and a fifth protective layer which is positioned at the lap joint of the electrode and the protective layer and is made of resin silver are sequentially laminated on the resistive layer; the outer side of the electrode is provided with a nickel-plated layer and a tin-plated layer which extends and is lapped to the surface of the fourth protective layer; the preparation method comprises the steps of printing and sintering each functional layer and forming each protective layer in a targeted manner. According to the invention, through a multi-layer synergetic sealing structure, especially enhanced protection of a laser groove and an electrode interface, and epitaxial lap joint of a metal coating, excellent moisture resistance, long-term electrical stability and high reliability are realized, and the device is suitable for a harsh environment.

Provided in the present application is a radiative cooling film, comprising a base film layer, wherein the base film layer comprises a resin matrix, and a plurality of isolated cells, a plurality of separate first particles and a plurality of cell-enveloped second particles, which are all dispersed in the resin matrix. In the radiative cooling film using the technical solution of the present application, air in the cells in the base film layer is a substance with a low refractive index, the first particles and the second particles are each a substance with a high refractive index, and there are differences between the refractive index of the air in the cells and the refractive indices of the first particles and the second particles, thereby improving the reflectivity of the base film layer; by controlling the differences between the refractive index of the air in the cells and the refractive indices of the first particles and the second particles, high reflectivity is achieved; moreover, since the radiative cooling film of the present application does not contain a metal coating, signal shielding can be avoided, which is beneficial to the wide application of the radiative cooling film.

The application provides a packaging substrate and a preparation method thereof, the preparation method comprising the steps of: providing a semiconductor structure, the semiconductor structure comprising an insulating support layer and a metal layer covering at least one side of the insulating support layer, the metal layer comprising a metal circuit and a metal pad electrically connected to the metal circuit, forming a solder resist layer covering the insulating support layer and the metal layer, forming a pad opening in the solder resist layer, the pad opening exposing part of the surface of the metal pad, forming a metal plating layer of a preset thickness on the surface of the metal pad, implanting a solder ball in the pad opening, and electrically connecting the implanted solder ball and the metal pad through reflow soldering to obtain the packaging substrate. The preparation method of the packaging substrate can effectively avoid the product short circuit failure caused by side etching of the solder resist layer of the substrate and overflow of the solder during reflow soldering, thereby improving the reliability and stability of the product.

Method for butt-welding two sub-blanks of steel (10) comprising the steps of: -providing two sub-blanks (10) made of press-hardening steel grades, having a thickness of respectively t1 and t2 expressed in mm, and coated on both sides with an aluminum based metallic coating (2) comprising an intermetallic layer (21) in contact with a substrate (1) and a metallic layer (22) above it. -preparing said two sub-blanks (10) by removing at least said metallic layer (22) of said aluminum-based coating (2) on the top side of said weld edges (11) of each of said sub-blanks (10) to form removal zones (23), while leaving the full amount of said aluminum-based coating (2) on the bottom side of said weld edges (11). - positioning said two sub-blanks (10) side by side along their respective weld edges (11). - laser welding said two sub-blanks (10) using a laser beam (31) emitted by a laser head (30) traveling at a relative speed S_welding, expressed in m / min, and simultaneously adding a filler wire (41) having a diameter D_filler_wire, which is fed out of a filler wire feeder (40) at a speed S_filler_wire, expressed in m / min, to form a melt pool generated by said laser beam (31) and thus manufacture a laser welded blank (6) having a weld seam (5).

The utility model discloses a kind of fast charging porous double-sided bimetallic layer current collector, belong to the field of current collector, a kind of fast charging porous double-sided bimetallic layer current collector, including support base film, double-sided conductive coating and bimetallic plating layer sequentially arranged from inside to outside, the double-sided conductive coating is composed of first conductive coating and second conductive coating, the first conductive coating and the second conductive coating are respectively arranged on the upper surface and lower surface of the support base film by micro-concave coating, the bimetallic plating layer is composed of first metal plating layer and second metal plating layer, the first metal plating layer and the second metal plating layer are respectively arranged on the upper surface of the first conductive coating and the lower surface of the second conductive coating by electroplating, it can utilize micropore, can make electron or ion penetrate current collector in the direction of vertical current collector, and then shorten ion transmission path, to this end, the charge and discharge speed is improved.

The utility model provides a kind of high-performance conductive foam, it is related to the field of isolation shielding.The utility model includes foam main body, the outer surface of foam main body is connected with elastic conductive intermediate layer, elastic conductive intermediate layer is the composite material of carbon nanotube and graphene, the outer surface of elastic conductive intermediate layer is connected with metal plating, metal plating is silver copper alloy material quality, the outer surface of metal plating is connected with conductive macromolecular fiber layer.The beneficial effects of the utility model include: first, replace traditional conductive layer carbon coating by the cooperation of elastic conductive intermediate layer, metal plating and conductive macromolecular fiber layer, so as to avoid the easy cracking or falling off of conductive layer, conductive macromolecular fiber layer has greater flexibility, further avoids the problem of cracking and falling off, as described above, this kind of high-performance conductive foam is by using macromolecular fiber and optimizing its flexibility, not only improves its durability and reliability, very practical.

This invention relates to a negative-electrode composite electrode, its preparation method, and an all-solid-state battery. The negative-electrode composite electrode includes a current collector, a metal coating on at least one side of the current collector, and a polymer electrolyte substrate on the surface of the metal coating. The negative-electrode composite electrode provided by this invention uses the polymer electrolyte substrate as a medium to separate the solid electrolyte from the metal coating, and can even directly replace the solid electrolyte, fundamentally avoiding the technical problem of conflict between the metal coating on the current collector and the solid-state battery in negative-electrode technologies. The provided all-solid-state battery can significantly improve the uniformity and reversibility of lithium metal deposition / stripping, fundamentally solving the problems of lithium dendrites, dead lithium, and low coulombic efficiency in negative-electrode batteries. The capacity retention and long-cycle stability of the all-solid-state battery are significantly improved.