138 results about "Soft metal" patented technology

The invention relates to a sealing system comprising two components (10, 10 ') which are part of a high-pressure or medium-pressure device containing a gas, where each of the components (10, 10') comprises an end face or assembly face (12) facing an end face or assembly face (12) of the other component (10), and where a compression sealing gasket (14, 14 ') is compressed between the end faces or assembly faces (12, 12') of the components (10, 10 '), the compression seal gasket (14, 14 ') comprises a body (18, 38) made of elastomeric material and comprises a radially outer face (20, 30) and a radially inner face (22, 32) coaxial with each other wherein at least one of the radially outer face (20, 30) and the radially inner face (22, 32) comprises at least one first thin layer (23, 33) made of metal or soft metal or PTFE and having a thickness of between 1 nm and 1 mm.

A resin composition for a sliding material that can provide a sliding member having excellent sliding properties and the like under dry conditions even in a case where a soft metal such as an aluminum alloy is used as a mating material, and the like are provided. Disclosed are a resin composition for a sliding material in which 10 to 400 parts by weight of uncarbonized carbon fiber having a 5% weight loss temperature having a value within the range of 400 to 550° C. as measured by thermogravimetry, as a blending component (b), and 10 to 80 parts by weight of a lubricating additive as a blending component (c) are blended with 100 parts by weight of a resin component as a blending component (a), and the like.

The invention discloses a thick soft metal stripping process for reducing crushing and scratching of a wafer, and belongs to the technical field of LEDs and optical communication. The method comprises the following steps: (1) placing a wafer in a stripping unit, spraying liquid medicine to the center of the wafer at high pressure by using a high-pressure photoresist removing nozzle, and opening a small window in the center of the wafer; (2) spraying liquid medicine into the torn window by adopting a normal-pressure photoresist removing nozzle, and keeping the wafer to rotate at a relatively low rotating speed, so that a certain amount of liquid medicine is filled between the metal film layer of the wafer and the interlayer of the photoresist; and (3) a high-pressure photoresist removing nozzle is adopted to spray liquor medicine liquid to strip the metal film layer. According to the process, during stripping of electrode lead-out, the minimum metal scratch and crushing damage can be guaranteed to the maximum extent, the yield loss is reduced, and the conductivity of a product is improved.

An anode and cathode composite current collector of a lithium battery is provided with an insulating film, metal material layers are attached to the two surfaces of the insulating film, and the anode composite current collector is formed when the metal material layers are made of aluminum; the metal material layer is a negative electrode composite current collector when being copper; the thickness of the insulating film is 4-10 mu, the thickness of the metal material layer is 1-2 mu, and the thickness of the insulating film is not less than 50% of the total thickness. The insulating film is made of maleic anhydride modified polyethylene or maleic anhydride modified polypropylene. The metal material layer is attached to the surface of the insulating film in a vacuum plating or magnetron sputtering mode. Or soft metal compounding is adopted. And the fire risk in the puncturing process of the lithium battery can be greatly reduced. Meanwhile, the thickness of the insulating layer exceeds 50%, and the density of the insulating layer is only 1 / 3-1 / 2 of that of aluminum, so that the weight of the current collector can be greatly reduced, and the energy density of the battery can be greatly improved. The thickness is reduced, the weight is reduced, and meanwhile, the requirements of a battery coating and rolling process can be well met.

U-shaped locks are provided with an external shell made from a relatively soft metal that clogs grindings disks and reduces their cutting effectiveness.

The invention discloses a method for connecting a skutterudite thermoelectric material and an electrode by using a high-entropy alloy and soft pure metal composite intermediate layer, and relates to a method for connecting the skutterudite thermoelectric material and the electrode. The objective of the invention is to solve the problems of large interface residual stress and easy cracking of an electric connection joint of an existing skutterudite thermoelectric material and an electrode. The method comprises the following steps: 1, cleaning a skutterudite thermoelectric material and an electrode; 2, preparing a composite intermediate layer of soft metal and high-entropy alloy by using methods such as electroplating, physical vapor deposition, sheet or powder intercalation hot pressing and the like, and performing diffusion welding connection on the cobalt ore thermoelectric material and the electrode by using the composite intermediate layer; the material of the soft metal layer comprises but is not limited to Ni, Cu, Fe, Al, Nb, Au, Ag or Pt; and the components of the high-entropy alloy layer comprise but are not limited to an Al-Co-Cr-Fe-Ni system, an Fe-Co-Ni-Cr-Mn system, an Fe-Co-Ni-Cu system, a Mo-Co-Cr-Fe-Ni system, an Hf-Nb-Ta-Ti-Zr system, an Nb-Ti-V-Zr system and an Mo-Nb-Re-Ta-W system. The skutterudite thermoelectric material obtained by utilizing the composite lamination of the soft metal intermediate layer and the high-entropy alloy intermediate layer and the electrode contact have low contact resistivity, extremely high thermal stability and high mechanical property of a connection interface at the same time. The method is suitable for connecting the skutterudite thermoelectric material and the electrode.

The invention discloses a pulse current-assisted rapid diffusion bonding auxiliary device and method for an aluminum alloy micro-channel structure, and relates to the field of diffusion bonding. The problems that the efficiency is low and the mechanical property of a connection interface is insufficient when a workpiece internally containing a fine structure is prepared from soft metal are solved. The method mainly comprises the following steps: pre-treating a plate and a middle layer, combining a pulse current auxiliary device and a sample, setting parameters, adjusting power output and completing diffusion bonding. According to the method, pulse current assistance and an interlayer method are used, the insulation spacer is used for controlling the deformation amount of the plate in the connection process, diffusion connection of the micro-channel structural part is completed within extremely short time, the shape and size of the channel in the diffusion connection process and the surface smoothness of the connection part are guaranteed, and meanwhile the interface structure performance of the connection part is guaranteed. The method is also suitable for the field of diffusion bonding processes.

The invention discloses a stable protection device with a buffering function, and relates to the technical field of protection devices. A rotating shaft is arranged at the bottom of the operation table, the bottom of the rotating shaft is connected with an embedded chassis, two sets of embedded parts are arranged at the bottom of the embedded chassis, a connecting groove is formed in the top of the operation table, a fixing mechanism is arranged in the connecting groove, and the fixing mechanism is connected with a bottom inserting column; the top of the bottom inserting column is connected with a soft metal sheet, the top of the soft metal sheet is connected with a fixed inserting plate through a top inserting column, the fixed inserting plate is connected with a supporting plate, the left side and the right side of the supporting plate are connected with supporting columns, the supporting plate is provided with a connecting main column, and the connecting main column is connected with an operation table. A plurality of first supporting rods and second supporting rods are arranged on the rear side of the supporting plate, the first supporting rods and the second supporting rods are connected with the limiting plate, the limiting plate is connected with the embedded part through the first connecting piece, and the operation table is connected with the embedded part through the second connecting piece.

The application discloses a composite pre-coating, a metal bipolar plate and a preparation method. The composite pre-coating comprises a soft metal layer, a first diffusion layer, a transition metal layer, a second diffusion layer, a ceramic transition layer, a third diffusion layer and a conductive carbon layer which are sequentially stacked; the material of the soft metal layer is any one of gold, silver, tin, magnesium, indium, copper, aluminum and yttrium. The composite pre-coating has small interface contact resistance and good conductivity, can effectively resist the strain force in the stamping process, has high bonding strength, prevents the peeling and cracking of the coating due to stamping, and effectively improves the compactness and corrosion resistance.

A cladding process for depositing metal cladding onto a hollow metal substrate at ultra-high deposition rates, including: applying softer metal cladding as at least one annular band around a circumferential periphery of the hollow metal substrate using a plasma-arc welding device; circulating a liquid heat transfer medium through an interior space of the harder metal, hollow metal substrate such that an outer surface of the substrate to which metal cladding is to be applied is maintained at desired temperatures throughout the cladding applying step; and controlling temperature of the circulating liquid heat transfer medium to be within a predetermined temperature range. The hollow metal substrate is formed of a harder metal than the metal cladding.

The application provides a soft metal light film piece clamping device and a soft metal light film piece clamping method. The soft metal light film piece clamping device comprises a positioning block, a metal piece, a magnet, an elastic piece and a fixing piece. The positioning block is provided with a mounting groove, and the hollow area comprises a first accommodating cavity and a second accommodating cavity. The magnet is located in the mounting groove, and the magnet and the metal piece are magnetically attracted to each other to fix the soft metal light film piece in the mounting groove. The application sets a non-metal film on the contact part of the metal hook and the surface of the magnet to maximize the protection of the surface quality of the soft metal light film piece. The application uses the magnet, the metal hook and the annular rubber rope to jointly act on the soft metal light film piece to realize the clamping of the soft metal light film piece. Since this clamping method is adopted, the thickness, height and weight of the magnet are small, so the interference caused by subsequent laser processing, protective gas blowing and other processes is small, and the problem of large stress of the soft metal light film piece surface caused by the pressing block and the pressing plate is avoided.

The invention relates to a 42CrMo-based self-lubricating material with a surface texture soft coating composite interface structure and a preparation method of the 42CrMo-based self-lubricating material. 42CrMo steel is mainly used as a substrate material, and a WS2 soft coating is combined on the surface of the substrate material through a magnetron sputtering deposition process; and then a composite texture of a hexagonal texture and a regular polygon texture is prepared on the surface of the WS2 soft coating by adopting a laser marking technology, and grooves and grooves of the composite texture are filled with a soft metal lubricant Sn-Cu-Zn and a reinforced phase TiB2 by adopting a high-temperature infiltration technology, so that the 42CrMo-based self-lubricating material with the surface texture soft coating composite interface structure is obtained. According to the 42CrMo-based self-lubricating material and the preparation method thereof, structural optimization of the surface texture and compounding of the soft metal lubricant and the lubricating coating are introduced into interface construction of the self-lubricating material, the lubricating performance is improved while the interface bearing capacity is guaranteed, the prepared 42CrMo-based self-lubricating material has excellent antifriction and wear-resisting performance, and the tribological performance of the 42CrMo steel material is effectively improved.

The application provides a high-performance bulletproof ceramic and a preparation method thereof, and the method comprises the following steps: preparing a hard alloy coating on a metal transition layer on the surface of a ceramic base by using a supersonic flame spraying method; then, a plurality of blind hole grooves arranged in a matrix interval are opened on the surface of the hard alloy coating by using a laser etching method; then, the blind hole grooves are filled with soft metal by using the supersonic flame spraying method; after the upper surface of the soft metal in each blind hole groove is polished to be flush with the upper surface of the hard alloy coating, a hard ceramic coating is prepared on the upper surface of the hard alloy coating and the soft metal by using an atmospheric plasma spraying method. The soft metal filled in each blind hole groove of the hard alloy coating captures the broken ceramic to achieve a secondary anti-penetration effect, and the soft area formed by the soft metal and the hard area formed by the hard alloy coating make the bullet body bear uneven stress to achieve the effect of deflecting the penetration path.

The invention belongs to the technical field of petroleum and natural gas resource development, and particularly relates to an expansion metal abandoned layer isolation tool. The device comprises a central pipe, an open hole anchoring sealing assembly, a valve hoop and a feeding separation assembly. The open hole anchoring sealing assembly comprises an expansion metal anchoring sealing shell. A sealing cavity is formed between the expansion metal anchoring sealing shell and the central pipe; the upper end and the lower end of the expansion metal anchoring sealing shell are each sleeved with a set of expandable barrel type slips, and the center pipe is sleeved with the expandable barrel type slips. Through type slits are evenly distributed in the expandable barrel type slip. The valve hoop sleeves the central pipe and is in threaded connection with the central pipe; the valve hoop is provided with a channel which is communicated with the central pipe and is communicated with a sealing cavity between the central pipes of the expansion metal anchoring sealing shell; the expansion metal abandoned layer isolation tool is made of metal. The soft metal framework is expanded through hydraulic driving, meanwhile, other anchoring and sealing assemblies installed on the soft metal framework are linked to be expanded together to be attached to the stratum, and the anchoring and sealing functions are achieved.

In a sliding member, a hard material is dispersed in a soft metal matrix to form a surface layer to improve its fatigue resistance. The sliding member has a substrate layer and a surface layer, wherein the surface layer has a metal matrix and a hard material dispersed in the matrix and which is harder than the matrix, the hard material having a slope in its hardness, the slope of which gradually decreases from the inside of the hard material to the surface.

Sliding body (1), with: a base material layer (3); and an alloy top layer (9) formed on the base material layer (3), where the alloy cover layer (9) has a soft metal phase (11) which is deposited in a metallic matrix phase (10), and the alloy top layer (9) is formed as a layer on the base material by electron beam evaporation or boat heating evaporation, wherein, if an average particle diameter of the soft metal phase (11) is defined as C and its standard deviation as Cσ, C + Cσ is 0.70 µm or less, and wherein where an average elongation ratio of particles of the soft metal phase (11) is defined as A and its standard deviation as Aσ, A + Aσ is 3.0 or less, wherein the elongation ratio is a ratio of a principal axis (b) to a minor axis (a) of the individual particles, wherein the alloy cover layer (9) is cut in its thickness direction and an image of the cut surface is taken with an electron microscope, wherein the obtained image is analyzed to extract corresponding ellipses of the soft metal phase, wherein all corresponding ellipses within a range of 10 µm × 10 µm in the processed image are extracted, and the elongation ratio of each of the corresponding ellipses is calculated.

The utility model discloses an intelligent temperature control protector, which relates to the technical field of electrical components, and comprises an outer casing, a side cover, a circuit board and a mounting plate, the upper side of the circuit board is electrically connected with a microprocessor, a wireless receiving module and a temperature sensing module, and the upper side of the mounting plate is fixedly provided with an on-off protection mechanism and an access mechanism. When the interior of the electric appliance is overheated due to long-time heat supply, the temperature sensing module is arranged in the electric appliance, senses that the temperature exceeds a threshold value and sends an electric signal to the microprocessor, and the microprocessor controls the output shaft of the rectangular-axis motor to rotate reversely, so that the shifting piece is driven to rotate clockwise, and the rolling wheel rotates clockwise to be gradually separated from the soft metal strip; the soft metal strip is made of copper metal, has high toughness and is separated from the hard metal strip after being recovered to a horizontal state, and the hard metal strip is made of aluminum metal, so that a circuit of a temperature generation part of the electric appliance is disconnected, heat supply is not continued, and the electric appliance is protected.

The application discloses a ceramic-reinforced hard alloy sintered electrode for surface build-up welding of oil and gas workover tools and a manufacturing method thereof. The electrode is prepared from multi-prism hard alloy particles and soft metal. The multi-prism hard alloy particles utilize the excellent grinding effect of TiB2 and TiC composite ceramic materials at high temperatures to improve the performance of the hard alloy material in the grinding process. The WC, TiC, TiB2, SiC, Mo and Co composite sintered material is used to improve the hardness and grinding performance of the hard alloy material by optimizing the component, content and structure characteristics of the hard alloy material, thereby improving the grinding and milling effect on high-strength steel pipes above P110. The soft metal material is a Cu-Ni-Zn-Mn-Si system powder, which effectively improves the strength and wear resistance of the sintered electrode matrix soft metal itself, solves the problems of weak impact resistance, low hardness and poor cutting performance on P110 high-strength steel of the traditional grinding and milling tool, and improves the grinding and milling effect and working efficiency.

The invention belongs to the technical field of lubricating materials, and particularly relates to a modified WS2 membrane material and a preparation method and application thereof. The modified WS2 membrane material provided by the invention comprises a matrix and a membrane layer coating the surface of the matrix, wherein the membrane layer comprises a WS2 membrane and gold particles doped in the WS2 membrane. In the invention, Au as a soft metal has excellent chemical stability and good lubricating property in a space environment, and the Au element exists in the MoS2 thin film in a nano-particle form, so that the effects of increasing the compactness of the thin film and improving the mechanical property are achieved. The Au-doped MoS2 film grows in a base plane preferred orientation manner, so that the friction coefficient is reduced, the wear-resistant life is prolonged, and the tribological performance of the film is greatly improved. The Au element is introduced into the WS2 thin film with better oxidation resistance through a magnetron sputtering method, and the thin film is endowed with better mechanical and tribological properties.

The utility model relates to a lunar-based vacuum degree keeping multistage sealing device which comprises a sealing cabin, the sealing cabin comprises an outer cylinder and a sealing plug, one end of the outer cylinder is a closed end, and the other end of the outer cylinder is an open end; the sealing plug is matched with the opening end of the outer cylinder and is used for operably sealing the opening of the outer cylinder; one of the outer cylinder and the sealing plug is provided with an O-shaped sealing ring, and the other one of the outer cylinder and the sealing plug is provided with a sealing surface matched with the O-shaped sealing ring; one of the outer cylinder and the sealing plug is provided with an axial annular cutting edge, and the other one of the outer cylinder and the sealing plug is provided with an annular soft metal sealing strip matched with the annular cutting edge; when the sealing plug is installed in place, first sealing between the sealing plug and the outer cylinder is achieved through the O-shaped sealing ring, and second sealing between the sealing plug and the outer cylinder is achieved by inserting the annular cutting edge into the annular soft metal sealing strip. According to the device, the core barrel can be sealed and stored in a sealed mode, a common lunar soil / lunar rock sample can still be kept in the in-situ pressure environment of the moon after being brought back to the earth, more real scientific data can be conveniently obtained, and deep research on the moon is facilitated.

The utility model relates to the technical field of metal punching sheets, in particular to a soft metal pressing and thinning system. Comprising a first film layer unwinding mechanism, a soft metal layer unwinding mechanism, a second film layer unwinding mechanism, a first film layer tension correction mechanism I, a soft metal layer tension correction mechanism I, a second film layer tension correction mechanism I, a first film layer oiling mechanism, a second film layer oiling mechanism, a first oil film thickness detection mechanism and a second oil film thickness detection mechanism, the device comprises a first pressure applying mechanism, a second pressure applying mechanism, a first pressing assembly, a second pressing assembly, a first film layer tension deviation rectifying mechanism III, a second film layer tension deviation rectifying mechanism III, a first film layer winding mechanism, a second film layer winding mechanism, a pressing gap adjusting mechanism and a control device, and a first oil control mechanism and a second oil control mechanism are arranged in the control device. The device is compact in structure, scientific in design and suitable for large-scale popularization and application, and soft metal sheets with the thickness of 4-100 microns can be obtained.

The invention discloses a connecting bar and a battery module, the connecting bar comprises a first connecting section and a second connecting section, the first connecting section and the second connecting section are respectively made of hard metal materials, and two opposite ends of a buffer section in the extension direction are respectively connected with the first connecting section and the second connecting section; the buffer section comprises a plurality of soft metal foils which are stacked in the thickness direction of the buffer section. According to the connecting bar, stable connection between the connecting bar and the battery cell poles is achieved through the high-rigidity hard metal materials at the two ends, the fatigue stress between the battery cell columns under the vibration working condition is absorbed through the soft metal foil pieces with the good flexibility, and fatigue fracture of the connecting bar is avoided.

The invention discloses a ceramic reinforced hard alloy sintered welding rod for surface laying welding of an oil gas well repair tool and a manufacturing method of the ceramic reinforced hard alloy sintered welding rod, the ceramic reinforced hard alloy sintered welding rod is prepared from polygonal hard alloy particles and soft metal, and the polygonal hard alloy particles improve the performance of a hard alloy material in the grinding process by utilizing the excellent grinding effect of a TiB2 and TiC composite ceramic material at high temperature; wC, TiC, TiB2, SiC, Mo and Co composite sintering materials are adopted, the hardness and the grinding performance of the hard alloy material are improved by optimizing the components, the content and the structural characteristics of the hard alloy material, and then the grinding and milling effect of the hard alloy material on high-strength steel pipes of P110 or above is improved. Cu-Ni-Zn-Mn-Si series powder is adopted as a soft metal material, so that the strength and the wear resistance of the sintered welding rod matrix soft metal are effectively improved, the problems that a traditional milling tool is weak in impact resistance, low in hardness and poor in cutting performance on P110 high-strength steel are solved, and the milling effect and the working efficiency are improved.

The invention provides a flexible bendable temperature sensor, and relates to the field of temperature measurement. The flexible bendable temperature sensor comprises a soft metal wire, the soft metal wire is coated with a wire jacket, the soft metal wire is made of a nickel-titanium alloy material, two wires are arranged in the wire jacket, and the two wires are symmetrically arranged on the two sides of the soft metal wire. According to the temperature sensor, the injection molding shell made of the TPE material is arranged, and the chip at the head of the temperature sensor, the welding points of the chip pins and the lead, the head of the lead and the head of the lead jacket are packaged by using the injection molding shell in an injection molding manner, so that the chip can be effectively prevented from being damaged by the external environment, and the sealing and waterproof performance of the temperature sensor is improved; therefore, the temperature sensor can work normally in various complex environments, the application range of the temperature sensor is widened, the measurement precision and stability are ensured, and the environmental adaptability of the temperature sensor is improved.

This application relates to the field of materials technology, providing a chitosan-polyacrylonitrile composite material, its preparation method, and its application. The general structural formula of the chitosan-polyacrylonitrile composite material is as follows: This application uses inexpensive chitosan and polyacrylonitrile fiber as raw materials to develop a novel chitosan-polyacrylonitrile composite material, overcoming the solubility limitation of chitosan under acidic conditions and simultaneously enhancing its adsorption capacity for phenolic compounds and heavy metals. It exhibits higher selectivity for target pollutants, especially among eight different phenolic compounds (phenol, 4-methylphenol, 4-chlorophenol, 4-nitrophenol, hydroquinone, catechol, resorcinol, and phloroglucinol), showing excellent adsorption performance for hydroquinone, with an adsorption capacity as high as 316.84 mg·g⁻¹. ‑1 Furthermore, this application addresses the soft metal ion Hg. 2+ Its adsorption capacity is outstanding, with a maximum adsorption capacity of 237.18 mg·g⁻¹. ‑1 .

Provided is an improved compression seal gasket and a seal system. **Solution**: The present invention relates to a compression seal gasket (14) including an annular body (18) made of an elastomer material and having an annular radially outer surface (20) and annular radially inner surfaces (22) that are parallel and coaxial to each other. At least one of the radially outer surface (20, 30) and the radially inner surface (22, 32) is made of metal or soft metal or PTFE and includes at least one first thin layer (23, 33) having a thickness between 1 nm and 1 mm.

The present application relates to the technical field of metal composite plate preparation, and particularly relates to a self-riveting microstructure metal composite plate mold pressing forming method. The method comprises the following steps: step S1: preparing a self-riveting microgroove structure on the riveting surface of a hard metal plate; step S2: preparing a self-riveting microconvex structure on the riveting surface of a soft metal plate; step S3: annealing the soft metal plate; step S4: pretreating the riveting surfaces of the soft and hard metal plates; step S5: fixing the riveting surfaces of the soft and hard metal plates face to face, so that the self-riveting microconvex structure and the self-riveting microgroove structure are one-to-one correspondingly inserted to form a laminated plate; step S6: preheating the laminated plate by copper foil cladding; step S7: mold pressing the laminated plate to obtain a composite plate; and step S8: annealing the composite plate. The present application realizes high-strength mechanical riveting and metallurgical bonding dual reinforcement interface of the soft and hard metal composite plate, and improves the comprehensive performance and reliability of the composite plate.

A welding tool comprises a clamping end, a shaft shoulder and a stirring needle, and is characterized in that the stirring needle is composed of an upper section and a lower section, the upper section is of a taper step type structure with the wide upper portion and the narrow lower portion, and the lower section is of an external expansion structure; the external expansion structure can be in a reverse taper smooth surface shape, a reverse taper step shape and a reverse taper thread shape. The non-contact reverse conical surface structure of the lower section of the stirring needle and the low-hardness and high-plasticity soft metal material added to the back of the stirring needle are used for preventing a lap joint part from making direct contact with base metal, heat generated by a lap joint connector is increased, and reverse torrent impact is generated by the high-plasticity metal; the conditions that the material flow of the lap joint part of the composite joint is insufficient and the actual bonding length is insufficient are improved, the interface stress is reduced, the problems that the butt joint part is not completely welded and the lap joint part is weakly connected are solved, the abrasion of a welding tool is reduced, the sealing performance of the joint is improved, and the strength and toughness of the lap joint composite joint by friction stir welding are improved.

The invention discloses a high-threshold high-anti-reflection laser window and a manufacturing method thereof, and belongs to the field of micro-nano optical processing. According to the method, traditional precious metal and high-temperature annealing processes are abandoned, and low-melting-point soft metal is adopted as an evaporation film material. The method comprises the following steps: heating an optical substrate to 80-200 DEG C in a vacuum environment, maintaining the temperature, and carrying out at least two times of cyclic deposition by utilizing an electron beam evaporation technology; in each deposition, metal is self-assembled on the surface of the heating substrate through a dehumidification effect to form spherical nano-particles, the particles continue to grow on an original array through subsequent deposition, and finally the spherical nano-metal mask with high uniformity and high filling degree is obtained. And etching by taking the mask as a protective layer, transferring the appearance of the mask to the surface of the substrate to form a micro-nano structure, and cleaning to obtain the laser window. The method is simple in process, low in cost and suitable for large-area manufacturing, and the obtained window has the high laser damage threshold value, the high transmittance and the self-cleaning surface characteristic.

This invention relates to a corrosion-resistant, highly dense, and conductive composite layer for soft metal surfaces, its preparation method, high-voltage cables, and applications, belonging to the field of soft metal substrate-based composite technology. Using a soft metal as a substrate, a composite layer is coated onto the surface of the substrate. Starting from the substrate surface, the composite layer consists of a corrosion-resistant transition layer, a conductive layer, and a sealing layer. This invention constructs a multi-layered gradient composite structure of "corrosion-resistant transition layer, conductive layer, and sealing layer," achieving a synergistic improvement in corrosion resistance, high conductivity, high density, and mechanical strength through functional layering design. This overcomes the limitations of a single coating in achieving multiple performance characteristics. The composite layer exhibits a bonding strength of 30-40 MPa with the substrate, a tensile strength at break of 50-100 MPa, a porosity of <1%, a conductivity of over 30 MS / m, and no corrosion products.