633 results about "Metal coating" patented technology

The invention discloses an annealing temperature control method based on a differentiated ohmic contact material, and aims to solve the problems that the annealing temperature of an N-surface Au / Ge ohmic contact layer of an existing AlGaInP-based red light Micro-LED is not accurately monitored, a temperature field is not uniform and is difficult to detect, and abnormal response lags, the method comprises seven steps of processes (two times of patterning, two times of metal coating, two times of photoresist removal, annealing and observation), and the annealing temperature of the N-surface Au / Ge ohmic contact layer of the existing AlGaInP-based red light Micro-LED is controlled. Preparing a first Au / Ge ohmic contact layer (for function) and a second Au / Ge / Ni ohmic contact layer (for detection) on the N surface of the wafer; by means of the characteristic that Ni inhibits Au / Ge agglomeration, the two-layer agglomeration state difference is observed through an optical microscope, and the temperature is judged (in the normal state, the former agglomerates, and the latter does not agglomerate); the method is convenient in detection, supports batch detection, can find temperature abnormity in real time, improves the process stability, and is suitable for industrial mass production.

The invention relates to a metallized microbubble and a preparation method thereof, a construction method of a multifunctional composite probe, and a rapid bacterium capturing and sterilizing method, and belongs to the technical field of functional material preparation. The method aims at solving the technical problems that in the prior art, a metal coating on the surface of the hollow glass microbubble is not uniform, combination is not firm, and stability is poor. According to the technical scheme, the method is characterized by comprising the following steps: mixing surface-activated hollow glass microbubbles with a polyethyleneimine solution for reaction, and washing and drying to obtain polyethyleneimine-coated hollow glass microbubbles; then reacting with a single-stranded DNA buffer solution to obtain an intermediate product loaded with DNA; then introducing a silver nitrate solution to load silver ions on the surface of the compound; and finally, reducing through a sodium borohydride solution to prepare the metallized microbubbles. The metalized microbubbles prepared by the method can be used for constructing a multifunctional composite probe to realize efficient capture and synergistic antibiosis of targets such as bacteria.

Embodiments of the present disclosure provide methods for forming optical device structures. An exemplary method generally includes disposing a first material device layer on a substrate; patterning a portion of the first material device layer to form a first plurality of device structures in the first material device layer; disposing a second material device layer on an unpatterned portion of the first device material layer; performing a nanoimprint lithography process on the second material device layer to form a second plurality of device structures on the first material device layer; and disposing a metal coating on the second plurality of device structures.

The embodiment of the invention discloses a scanning NV probe microscope which comprises an atomic force microscopy system used for detecting surface topography information of a sample and an optical detection magnetic resonance system used for detecting surface magnetic field distribution information of the sample, and the atomic force microscopy system comprises a vibration arm and a diamond probe. The optical detection magnetic resonance system comprises an NV color center, a transition excitation light path and a fluorescence detection light path; a sample to be scanned and the transition excitation light path are respectively positioned on two opposite sides of the diamond probe, and the transition excitation light path and the fluorescence detection light path are positioned on the same side of the diamond probe; a first metal coating film is arranged on one side, close to the sample, of the diamond probe and is used for blocking surface fluorescence of the sample. According to the scanning NV probe microscope provided by the embodiment of the invention, the metal coating is arranged at the bottom of the diamond probe to block stray fluorescence from the surface of the sample, so that the problems of low magnetic field imaging signal-to-noise ratio and limited measurement precision of the existing scanning NV probe microscope 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 present application relates to optical fiber surface coating treatment device technical field, especially to a kind of optical fiber metal coating spraying device, including the spraying mechanism of lower shell, shunt chamber, combustion chamber and ring spray component composition, and for driving the linear drive mechanism and rotary drive mechanism of rotary movement of spraying mechanism.The present application is by being provided with independent oxygen passage, hydrogen passage and metal powder passage in shunt chamber, and by corresponding oxygen hole, hydrogen hole and metal powder hole spray into combustion chamber, it is realized in the state that oxygen content is higher, to metal powder realizes rapid melting, improves the purity of metal molten liquid;And by the ring array side nozzle on annular jet pipe, it is realized to the overall metal coating of optical fiber surface;While improving the controllability of optical fiber surface metal coating quality and coating thickness and uniformity.

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 embodiment of the invention provides a self-powered microneedle patch for repairing hypertrophic scars as well as a preparation method and application of the self-powered microneedle patch. The self-powered microneedle patch comprises: a friction nano-generator for generating a current; the conductive drug-loaded microneedle patch is connected with the friction nano-generator, and the friction nano-generator is connected with the conductive drug-loaded microneedle patch; the conductive drug-loaded microneedle patch comprises a conductive microneedle patch body and a crosslinked gelatin-crosslinked hyaluronic acid microneedle bearing Sb4. The surface of the conductive micro-needle patch is provided with a metal coating, and the conductive micro-needle patch is used for mediating current generated by the friction nano-generator and applying percutaneous electrical stimulation; the cross-linked gelatin-cross-linked hyaluronic acid microneedle is coated at the tip of the conductive microneedle patch. According to the self-powered microneedle patch provided by the embodiment of the invention, myofibroblasts of hypertrophic scars are transdifferentiated into adipocytes by providing percutaneous electrochemical stimulation, inflammatory factor release is inhibited, and a tissue microenvironment is remodeled, so that the hypertrophic scars are reversed, and skin repair and tissue regeneration are realized.

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.

The invention discloses a corrosion-resistant and collagen-functionalized magnesium-based metal coating and a preparation method of the corrosion-resistant and collagen-functionalized magnesium-based metal coating. Belongs to the technical field of biomedical material preparation. The preparation method comprises the following steps: firstly introducing hydroxyl into the surface of the magnesium alloy through alkali treatment, then sequentially dipping the magnesium alloy into a solution A and a solution B containing specific copolymers, drying to obtain an anti-corrosion coating, and finally coating with a recombinant humanized collagen solution. The copolymer A in the solution A and a magnesium substrate form a firm Si-O-Mg covalent bond through a silane coupling agent, and the fluorine-containing copolymer B in the solution B is tightly combined with a bottom layer through self-assembly, so that a super-hydrophobic anti-corrosion barrier with a stable structure and strong adhesion is constructed. The outermost collagen layer endows the magnesium alloy material with excellent endothelial cell adhesion and proliferation promoting activity. The multi-layer composite coating structure effectively solves the problems that magnesium alloy degradation is too fast, and an existing coating is weak in binding force and lacks biological functions, and has wide application prospects in implantable medical devices such as intravascular stents.

The invention discloses a multi-band metasurface filtering method based on machine learning optimization, and the method comprises the steps: firstly constructing multi-band reconfigurable metasurface filtering hardware of a multi-layer silicon-based integrated architecture, and sequentially arranging a bottom dielectric layer, an isolation layer, a middle dielectric layer, a top dielectric layer and a metal coating layer from bottom to top; secondly, electromagnetic simulation data and real object actual measurement data are collected, and a multi-dimensional data set containing structure, frequency and performance parameters is constructed; building a multi-level machine learning optimization model containing performance prediction, parameter optimization and global optimization, and respectively realizing accurate mapping of parameters and performance, dynamic parameter adjustment and multi-band performance collaborative optimization; and finally, through model training optimization and multi-band performance optimization process execution, experimental verification and model iterative optimization are combined. According to the method, the bottlenecks of low efficiency, poor multi-band collaboration, large simulation and actual measurement deviation and the like of the traditional design are broken through, the filtering performance and the design efficiency are improved, and the multi-band signal processing requirement in a complex electromagnetic environment is met.

The invention discloses a magnetic suspension rotor impeller, a pump head and a magnetic suspension pump, the magnetic suspension rotor impeller comprises a rotor main body and a magnetic suspension rotor, the rotor main body is cylindrical, a first cavity is formed in the rotor main body, and the magnetic suspension rotor is sealed in the first cavity; the magnetic suspension rotor comprises a rotor magnet and a nano ceramic composite coating, and the nano ceramic composite coating comprises a metal coating in contact with the rotor magnet and a nano ceramic coating arranged outside the metal coating. By forming the nano ceramic composite coating on the surface of the rotor magnet, the problem that the plastic coating cannot play a role in protection due to damage to the plastic coating in the assembly process is solved, so that the service life of the magnetic suspension rotor impeller can be prolonged, metal coating ions are prevented from being separated out to pollute a pumping medium, and the cleanliness of the pumping medium is ensured.

The invention discloses a multi-mode nanometer measurement system and method based on terahertz scattering type scanning near-field optical microscopy and multi-frequency electrostatic force microscopy, and belongs to the technical field of near-field imaging, the measurement system comprises an AFM main body, a terahertz source, an optical path system, a terahertz detector, a multi-frequency signal generator and two phase-locked amplifiers; terahertz waves emitted by the terahertz source reach the terahertz detector through the optical path system, and near-field optical signals are obtained. The AFM comprises a metal coating probe; the multi-frequency signal generator generates sinusoidal signals with frequencies of omega1 and omega2; a sample is placed on the scanner, and the cantilever beam is controlled to vibrate at the frequency omega 1; an alternating voltage with the frequency of omega 2 is applied to a metal coating probe arranged at the top end of the cantilever beam; laser emitted by the laser is reflected to the light spot position detector through the cantilever beam, and morphology and electrostatic force signals are obtained through the two lock-in amplifiers respectively. According to the invention, a morphology signal, an optical signal and an electrostatic force signal can be synchronously obtained through single scanning.

The application relates to the fields of quantum architecture design, quantum dots and phononic crystals, and particularly relates to a carbon nanotube quantum dot regulating device and method based on a sound cavity, wherein the device comprises a phononic cavity, a gate electrode, a metal coating, a carbon nanotube and a groove; the regulating method regulates a quantum bit through the coupling of the phononic cavity and the quantum dot from an external input signal, stores a quantum state by using cat state coding in the phononic cavity, improves the reliability of information storage, prolongs the retention time of quantum information, enhances the stability of regulation and reduces errors in the regulation. The design significantly reduces the size of a single quantum bit to micron level, thereby laying a foundation for realizing the chip integration of millions of quantum bits. The design based on the sound cavity not only improves the density and scalability of quantum bits in quantum computing, but also provides a new idea for the development of future large-scale quantum computing by introducing the efficient regulation of the phononic cavity on the quantum dot.

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 invention relates to the technical field of cooling dies, in particular to a composite conformal cooling die for silica gel breast rollover, which comprises a stamping shell internally provided with a driving unit, the inner top wall of the stamping shell is provided with an upper die mechanism, and the inner bottom wall of the stamping shell is provided with a lower die mechanism; the upper die mechanism comprises a main channel, branch channels arranged in an annular array with the main channel as the circle center, a flow increasing pipe, a mounting plate with the surface sprayed with a metal coating, cooling fins and a temperature control assembly. The temperature sensors are used for monitoring the temperature of different parts of the silica gel breast in real time, a driving motor is started according to the temperature change, a pushing plate extrudes a corresponding connecting plate, an abutting block and an abutting ring extrude a branch channel, the diameter of the branch channel is changed, and therefore the flow of an area with the low temperature is reduced, and the working efficiency is improved. And the area cooling effect of the area with the low temperature is reduced, so that the overall cooling speed of the silica gel prosthesis is similar, and the cooling uniformity in the silica gel prosthesis mold turning production process is improved.

The invention relates to the technical field of metal coating detection, in particular to a full-automatic platinum load analysis device which comprises a frame and a through groove transversely formed in the frame in a penetrating mode, and further comprises a metal coating movably arranged in the through groove; the rollers are axially, symmetrically and rotationally mounted in the frame and movably abut against the bottom of the metal coating; the detection platform is movably mounted in the frame and is positioned below the metal coating; the fixed cylinder is fixedly mounted on one side of the frame; the rotating cylinder is rotationally mounted in the fixed cylinder; the notches are formed in the outer side of the rotating cylinder in an annular array mode, and the number of the notches is multiple; and the moving frame is movably mounted in the notch. According to the full-automatic platinum load analysis device provided by the invention, the beating assembly can beat and clean the bristle part of the brush plate through reciprocating swing of the beating plate, so that the cleanliness of the brush plate is ensured, and the cleaning quality of a metal coating is further improved.

Provided are metal detectable plastic bags, method of making and methods of using such bags for preventing product contamination when used to collect and retain samples of product. The metal detectable plastic bag includes a flexible body including an opposed front wall and back wall sealed together around the periphery of the walls to form an internal collection space including two side seal areas, a top seal area and a bottom seal area, a bag opening mechanism located proximate a top edge of the flexible body and below the top seal area. The bag opening mechanism includes one or more perforations, scores or cuts in the one or two side seal areas and optionally the front and back wall to form a removable tear strip. At least a portion of the removable tear strip is surface printed with a metallic based ink or surface coated with a metallic based coating.

To provide a method of pretreating an electrolyte film suitable for forming a metallic film.SOLUTION: There is provided a method of pretreating an electrolyte film 13 to be used in a film forming device 1 for forming a metallic film F on a base material B. The electrolyte film 13 is attached to a device body 1A of the film forming device 1, and is used upon forming the metallic film F on the base material B by electrolytic plating in a state of contacting with the base material B. The pretreatment method includes a swelling step S2 of swelling the electrolyte film 13 by heating the electrolyte film 13 under a humidified atmosphere, and a storage step S4 of immersing the swollen electrolyte film 13 in pure water W to store the electrolyte film.SELECTED DRAWING: Figure 1

The application discloses a heat exchange tube for a vanadium liquid flow battery and a preparation method and application thereof, and belongs to the technical field of liquid flow battery heat exchange. The base material of the heat exchange tube for the vanadium liquid flow battery is any one of an industrial pure titanium tube, a titanium alloy tube or a nickel-based alloy tube; the outer surface of the heat exchange tube is covered with a protective layer, and the protective layer is a polymer coating or a metal coating; wherein the outer surface of the polymer coating has a micro-crease structure. The heat exchange tube for the vanadium liquid flow battery has excellent corrosion resistance and thermal cycle stability, avoids the problem that metal ions in the base material are easily dissolved out, leading to ion pollution of an electrolyte, and thus the safety and stability of the vanadium liquid flow battery are effectively improved.

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 relates to a composite material for shielding against electromagnetic radiation, comprising a mechanically solidified non-woven fabric, said mechanically solidified non-woven fabric having a galvanically applied metal coating on one side and having no metal coating on the side facing away from the galvanically applied metal coating.

The invention relates to the technical field of resin material processing, in particular to a method for preparing a laser cladding metal coating on the surface of a resin-based material, which comprises the following steps of: pulse laser cladding: synchronously sending a metal cladding material to a position right below a pulse laser beam, so that the metal cladding material forms high-speed molten drops and is sprayed to the surface of the resin-based material; a metal cladding layer is formed after cooling; wherein the pulse width of the pulse laser beam ranges from 0.2 ms to 1000 ms, the power of the pulse laser beam ranges from 50 W to 200 W, and the feeding rate of the metal cladding material ranges from 3 particles per second to 8 particles per second. The problem that the resin-based material is easily damaged when a traditional laser cladding technology is applied to the metallization modification process of the surface of the resin-based material can be solved.

The manufacturing method of the glass protective film of the present invention includes: forming a metal coating layer on a first side of a base film; forming a scratch-resistant layer on the metal coating layer; forming an anti-ultraviolet layer on a second side of the base film; and forming a peelable layer on the anti-ultraviolet layer. The protective film obtained by the present invention has good film-substrate adhesion, heat insulation, scratch and abrasion resistance, and ultraviolet protection. This manufacturing method is simple, easy to implement, and low-cost, making it suitable for widespread application.

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.

Various embodiments of the present disclosure relate to a low-E film to which an electromagnetic wave transmission pattern of a specific frequency is applied. The low-E film comprises: an insulating layer made of an insulating material; and a metal coating layer including a metal or metal oxide coated on one surface of the insulating layer. The metal coating layer has a first pattern formed by removing a portion of the metal coating layer, and the first pattern includes a pattern having a plurality of oval surfaces of an identical shape within a rectangular unit cell, and the pattern having the plurality of oval surfaces is arranged with the long axes of the respective oval surfaces at constant angles, and the long axes of the pattern having the oval surfaces or the extension lines of the long axes meet at one intersection point located at the middle point of the unit cell.