Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

227 results about "Surface roughening" patented technology

Chip-embedded TGV glass substrate and manufacturing method thereof

The invention discloses a chip-embedded TGV glass substrate and a manufacturing method thereof. The method comprises the following steps: providing a glass core plate; forming a temporary metal mask layer on the first surface of the glass core plate; performing pattern transfer and etching on the temporary metal mask layer; performing dry etching on the glass core plate in the second pattern area to form a first TGV hole; etching the glass core plate in the first pattern area and the second pattern area through a dry method to form a second TGV hole and deepen the depth of the first TGV hole; removing the temporary metal mask layer, performing metallization to form a first conductive through hole and a second conductive through hole, and manufacturing a first rewiring layer; grinding the second surface of the glass core plate until the first conductive through hole is exposed; etching the glass core plate through a dry method to form a cavity until the second conductive through hole is exposed; providing a chip, and embedding the chip into the cavity; therefore, no-damage cavity processing is realized, and the problems of surface damage, dimensional deviation, lateral erosion, microcracks or surface roughening and the like of the substrate are effectively avoided.
Owner:SHANGHAI MEADVILLE SCI & TECH

A high-end copper foil surface roughening treatment method for electronic circuits

This invention relates to a method for surface roughening of high-end copper foil for electronic circuits, comprising the following steps: sequentially performing acid washing, roughening, blackening, ashing, passivation, and coupling agent coating on raw copper foil, with water washing steps interspersed between these steps, and finally drying and winding. The method is characterized in that the roughening step uses an alkaline plating solution containing copper pyrophosphate. This invention provides an alkaline plating solution for alkaline roughening of raw copper foil, generating grains with lower roughness on the already extremely thin surface of high-end copper foil. The grain size is between 0.02 and 0.1 micrometers. After deposition on the raw foil, the surface roughness of the finished foil increases by approximately 0.2 to 0.3 micrometers, ensuring that the surface roughness of the final product meets the requirements of high-end copper foil while maintaining peel strength.
Owner:JIUJIANG TELFORD ELECTRONICS MATERIAL CO LTD

Split type mold for vacuum centrifugal casting

The utility model discloses a split type mold for vacuum centrifugal casting, which comprises a lower mold body and is characterized in that the lower mold body comprises an outer mold part and an inner mold part which are arranged in a split type, and the outer mold part is movably mounted on the inner mold part; the inner die piece comprises a lower die base and an inner die installed on the lower die base. According to the utility model, the lower mold body is arranged in a split manner and is divided into the outer mold piece and the inner mold piece, so that when a rotor iron core and the inner mold body are demolded, multi-time demolding and single-time and single-side demolding can be carried out, the thrust during demolding is reduced, and the demolding efficiency is improved. And meanwhile, galling on the surface of the rotor iron core due to the fact that inner and outer demolding is completed at a time by strong force is avoided.
Owner:浙江东精智能装备有限公司

CVD diamond optical grinding process and device

The CVD diamond optical grinding process comprises the following steps that S1, surface cleaning is conducted on a selected diamond workpiece to be ground, and grinding discs with different grinding coefficients are selected, S2, the grinding stage is divided into the rough grinding stage and the fine grinding stage, the grinding disc with the finer surface roughness degree is replaced after rough grinding, and the grinding disc with the finer surface roughness degree is replaced after fine grinding. S3, according to the thickness of the diamond, the heights of a plurality of grinding heads are adjusted to adapt to the diamonds with different thicknesses, a first grinding motor and a second grinding motor are started for grinding, and in the grinding process, the limiting assemblies and the grinding assemblies are matched for use, so that the grinding efficiency is improved; and meanwhile, due to the fact that the autorotation direction and the circular motion direction of the grinding head and the second grinding planetary gear are opposite, regular grinding traces generated by traditional single-direction grinding are effectively broken through, and grinding is more uniform.
Owner:MAANSHAN HUALUN OPTICAL TECH CO LTD

Sapphire wafer back surface roughening method

ActiveCN121572102ALapping machinesWork carriersWaferingSapphire wafer
The invention relates to a sapphire wafer back surface roughening method, which is based on a planetary double-sided grinding machine platform, and comprises the following steps: firstly, bonding the front surface of a low-TTV sapphire wafer subjected to double-sided accurate grinding and polishing to the surface of a ceramic plate, then fixing the ceramic plate on a wandering star wheel, then placing the wandering star wheel on a lower grinding plate, and grinding the sapphire wafer back surface with the lower grinding plate; wherein the back surface of the wafer faces the lower grinding disc; the upper grinding disc is forbidden, a sun gear and inner gear transmission mechanism is utilized, the wandering star wheel rotates on the lower grinding disc to form a precise grinding interface, and roughening of the back face of the sapphire wafer is achieved by regulating and controlling the rotating speed of the sun gear, the inner gear and the wandering star wheel. According to the method, on one hand, wafer thickness uniformity and parallelism control is achieved through the double-face polishing technology, on the other hand, low TTV control over the obtained single polished wafer is achieved in the roughening process through combination of equipment design and technology innovation, and the method is suitable for the 8-12-inch sapphire wafer and can be applied to the fields needing high-precision thickness control such as LED or semiconductor manufacturing.
Owner:TDG HLDG CO LTD +1

Manufacturing process of high-temperature-resistant and washing-resistant tooling fabric

The invention discloses a manufacturing process of a high-temperature-resistant washing tooling fabric, which relates to the technical field of tooling fabrics and comprises a fabric base material conditioning part, a fabric weaving processing part, a fabric dyeing treatment part and an after-finishing part. The fabric base material conditioning part adopts composite fibers, and the composite fibers are sequentially subjected to surface roughening treatment, PAMAM-polydopamine composite coating treatment and inorganic nanoparticle loading treatment; the fabric weaving processing part is used for preparing gray cloth; the fabric dyeing treatment part is used for preparing dyed gray cloth. The composite fibers are sequentially subjected to surface roughening, PAMAM-polydopamine composite coating and inorganic nanoparticle loading treatment and then subjected to weaving, dyeing and after-finishing, so that the structural stability and dye adhesion of the tooling fabric can be effectively improved, the high-temperature washing resistance is enhanced, and the service life of the tooling fabric is prolonged. Therefore, the manufacturing process of the high-temperature-washing-resistant tooling fabric has the effects of improving the dimensional stability and the color adhesive force.
Owner:HUAMAO (XIAMEN) WEAVING DYEING & FINISHING CO LTD

Coating device for corrosion-resistant insulating coating surface

The utility model relates to a coating device for a corrosion-resistant insulating coating surface, which belongs to the technical field of corrosion-resistant insulating coating and comprises a processing bin, two storage boxes are fixed at the rear end of the processing bin, two spraying pipes are arranged in the processing bin, a plurality of spraying heads are fixed and communicated with opposite walls of the two spraying pipes, and the spraying heads are communicated with the processing bin. A frame plate is fixed to the rear wall of the processing bin, and an adjusting mechanism used for adjusting the distance between the two spraying pipes is arranged at the rear ends of the two spraying pipes. The adjusting mechanism comprises sleeve blocks fixed to the outer surfaces of the two spraying pipes. According to the coating device for the surface of the corrosion-resistant insulating coating, the distance between the two spraying pipes can be shortened, so that the height of the positions where the two spraying pipes are located can be adjusted according to the thickness of a workpiece, adjustment can be conducted according to the thickness of the workpiece, and the problems that due to the fact that the distance is too short, a paint film becomes thick, sagging is possibly caused, the spraying distance is too long, and the spraying efficiency is high are solved. The paint film is thinned, the surface is rough, and the paint loss is large.
Owner:JIANGSU GUGELANSHAN PROTECTIVE FACILITIES CO LTD

Methods of making multilayer composite films, conductive films, and semiconductor devices

The application discloses a preparation method of a multi-layer composite film system, a conductive thin film and a semiconductor device. The preparation method of the multi-layer composite film system comprises the following steps: preparing a first layer of metal film on a substrate by a vacuum coating method; performing surface roughening treatment on the first layer of metal film; and preparing a second layer of metal film on the first layer of metal film after the surface roughening treatment by the vacuum coating method. The preparation method of the multi-layer composite film system can enhance the adhesion between the film layers by performing the surface roughening treatment on the first layer of metal film, so that the mechanical combination mode is adopted between the film layers, the adhesion between the film layers is improved, some film layers which cannot be combined under vacuum can be effectively connected in the mechanical combination mode, the equipment investment cost is reduced, the multi-layer film system of various types is prepared by a single device, the substrate rework is effectively reduced or prevented, and the production cost is greatly reduced.
Owner:TONGWEI SOLAR ENERGY (CHENGDU) CO LID

A hydraulic tunnel concrete lining surface roughness reducing coating material

This invention relates to the field of tunnel concrete lining coating technology, and discloses a surface roughening coating material for hydraulic tunnel concrete lining. The material includes a pre-prepared coating base component, and porous ceramics and zeolite added to the coating base component before construction. The porous ceramics and zeolite are added after pretreatment, the pretreatment steps being: washing with clean water, drying, soaking and stirring in deionized water, allowing the deionized water to flow, and soaking in deionized water in a pressurized tank. The pre-prepared coating base component, after being stirred and produced, is stored in a packaging container and is only opened before construction and thoroughly mixed with the porous ceramics and zeolite. Construction must be completed within 1 hour after mixing. This invention, by adding specifically pre-treated porous ceramics and zeolite, can significantly improve the surface roughness reduction effect of hydraulic tunnel concrete lining, effectively solving the problems of shrinkage and pitting caused by concrete water absorption, reducing surface roughness, and meeting the needs of tunnel use.
Owner:CHINA RAILWAY 23RD BUREAU GRP THIRD ENG CO LTD

Method for roughening surface of ito and led chip

The application discloses an ITO surface roughening treatment method, comprising the following steps: preparing a GaN wafer, wherein the surface of the GaN wafer is covered with an ITO film layer; performing ion beam bombardment on the ITO film layer by using a preset ion dose of a low-energy ion beam, and meanwhile, the GaN wafer is self-rotated at a preset speed, so that a regularly arranged point structure of nanometer size is formed on the surface of the ITO film layer, and an ITO film layer after surface roughening is obtained. The application has the advantages of simple operation, low cost, high production efficiency, and the like, and can effectively improve the external quantum efficiency of an LED chip and improve the light-emitting brightness of the LED.
Owner:JIANGXI ZHAO CHI SEMICON CO LTD

A material with high light-heat conversion efficiency, a preparation method thereof and application thereof in nerve regulation

ActiveCN118873655BNervous disorderMetabolism disorderPhoton captureDisease
This invention discloses a material with high photothermal conversion efficiency, its preparation method, and its application in neural modulation, belonging to the field of biomedical technology. In this method, liquid metal is ultrasonically spun into nanoscale particles. Using these liquid metal nanoparticles as templates, hollow nanoshells composed of ultra-small metal nanoparticles can be prepared through an electrocoupling reaction with a metal salt. This method is simple, easy to operate, and applicable to various metals. The prepared material with high photothermal conversion efficiency has a hollow structure, a rough surface, and pores. This unique structure endows it with a strong photon trapping ability, significantly enhancing light absorption and exhibiting ultra-high photothermal conversion efficiency. This invention allows for the injection of this material into the nerve, utilizing its excellent photothermal effect for rapid and precise neural modulation, thereby achieving effective prevention and treatment of autonomic nervous system-related diseases, and showing promising application prospects.
Owner:WUHAN UNIV

An extrusion die

The application belongs to the technical field of mold manufacturing, and particularly relates to an extrusion mold, which comprises a cover plate and a base, and further comprises an inner mold sleeve made of PTFE material, the base is provided with a channel with open ends, the base is coaxially provided with an expansion port at one end of the channel, the inner mold sleeve is coaxially installed in the expansion port, the inner diameter of the inner mold sleeve is equal to the inner diameter of the channel, the cover plate is coaxially covered on the expansion port, the cover plate is located on one side of the bottom of the inner mold sleeve away from the expansion port, the cover plate is provided with a through hole, and the inner diameter of the through hole is greater than or equal to the inner diameter of the inner mold sleeve; the inner mold sleeve made of PTFE material is installed at the discharge port of the extrusion mold, so that the friction coefficient of the discharge port is reduced, the surface of the extruded polyethylene is smooth, and the problem that the polyethylene is mostly extruded by using a common steel material mold at present, so that the surface of the extruded polyethylene is rough and the discharge port of the mold has precipitates is solved.
Owner:JIANGSU HENGTONG POWER CABLE

Sole surface roughing machine

The utility model discloses a sole surface roughing machine in the technical field of shoe production, which comprises a rack, a roughing table is arranged in the middle of the rack, a transverse moving mechanism fixed on the rack is arranged above the roughing table, a downward pressing mechanism is mounted on a displacement part of the transverse moving mechanism, and a sole placed on the roughing table is pressed down through the downward pressing mechanism. The shoe soles can be roughened in cooperation with the movement of the transverse moving mechanism; an obliquely downward discharging sliding plate is mounted at the tail end of the roughing table; the downward pressing mechanism is driven by the transverse moving mechanism to convey the shoe soles, automatic feeding of the shoe soles can be achieved, and even downward pressing force can be applied to all positions of the shoe soles when the shoe soles are polished; 2, through a dust collection cover and a dust collection head, roughing scraps can be absorbed, meanwhile, scraps left on the shoe sole can be highly absorbed, and the cleanliness of the roughed shoe sole is ensured; and 3, through the cleaning roller shaft which rotates synchronously with the roughing roller shaft, high-speed rotating cleaning can be performed on the roughed shoe sole, and the residual scraps of the shoe sole can be effectively reduced.
Owner:FUZHOU YINDA AUTOMATION EQUIP

A surface texturing machine for concrete precast

The application relates to the technical field of prefabricated part processing equipment, and particularly discloses a surface roughening machine for concrete prefabricated parts, which comprises vertical side plates, a first connecting rod and roughening blades, the first connecting rod is rotationally connected at the top end of the two vertical side plates, the vertical side plates are provided with telescopic driving elements, the two ends of the first connecting rod are fixedly connected with connecting side plates, the two connecting side plates are fixedly connected with a second connecting rod, the roughening blades are rotationally arranged on the second connecting rod, knocking swing arms are arranged on the second connecting rod at the two sides of the roughening blades, the lower end of each knocking swing arm is connected with a knocking rod acting on the roughening blade, the upper end of each knocking swing arm is connected with a connecting sleeve sleeved on the second connecting rod, elastic elements for storing energy by rotating are arranged between the connecting sleeve and the connecting side plate, and a driving assembly is arranged on the connecting side plate; the roughening machine disclosed by the application has simple and compact structure, can clean the roughening blades after each roughening processing is completed, and effectively guarantees the surface roughening effect of subsequent concrete prefabricated parts.
Owner:阜阳晶宫绿建节能建筑有限责任公司

Pretreatment cleaning agent for electroless plating and method for forming electroless plating using the same

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

Anti-collision guardrail with ultra-high performance and anti-corrosion treatment and construction method of anti-collision guardrail

The invention relates to the technical field of traffic infrastructures, and discloses an ultra-high performance anti-corrosion treatment anti-collision guardrail and a construction method thereof.The anti-collision guardrail comprises a prefabricated UHPC protection plate, a prefabricated ultra-high performance concrete (UHPC) protection plate, a prefabricated ultra-high performance concrete (UHPC) protection plate, a prefabricated ultra-high performance concrete (UHPC) protection plate and a prefabricated ultra-high performance concrete (UHPC) protection plate, the post-poured concrete is combined with the inner surface of the prefabricated UHPC protection plate; the protective plate and reinforcing steel bar connecting piece is pre-buried in the prefabricated UHPC protective plate, and a hole for a guardrail reinforcing steel bar framework to penetrate through is formed in the protective plate and reinforcing steel bar connecting piece; the protection plate bottom long round hole is formed in the bottom of the prefabricated UHPC protection plate; and the anti-collision guardrail steel member is arranged at the top of the post-poured concrete. Through dual positioning of the pre-embedded connecting piece and the long round hole, and combination of inner surface roughening and a fiber-free protection layer, the construction precision, the structural bonding strength and the durability are improved.
Owner:BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST +3

Processing method of semiconductor structure

The invention provides a semiconductor structure processing method, and the method comprises the steps: providing a semiconductor structure which comprises a substrate and an initial oxide layer formed on the substrate; placing the semiconductor structure in a processing chamber, and establishing a supercritical environment in the processing chamber to form a supercritical carbon dioxide fluid in the processing chamber; and introducing a cosolvent and a fluorine-containing reaction precursor into the processing chamber to generate hydrofluoric acid, and enabling the hydrofluoric acid to be adsorbed on the surface of the oxide layer by the supercritical carbon dioxide fluid so as to etch the initial oxide layer and form a target oxide layer with a rough surface, the roughness of the target oxide layer is greater than that of the initial oxide layer. According to the invention, the surface roughness of the target oxide layer can be controlled within an ideal range, and the target oxide layer with uniform roughness can be obtained.
Owner:RONGXIN SEMICON (HUAIAN) CO LTD

A continuous unloading spiral sorting device

The utility model relates to a continuous type unloading spiral sorting equipment, include: stand, the double spiral sorting groove is connected around on stand, and the slope angle of double spiral sorting groove is 10~20 DEG. Advantageous effect is: material falls into double spiral sorting groove from the feed port of double spiral sorting groove even, and the centrifugal force and gravity component are produced along with spiral rotation, and the qualified spherical material is along the inside of double spiral sorting groove stable slide to the qualified product export because of even weight, small rolling resistance, and the abnormal / defective material falls into the substandard product collection groove because of the off-center of gravity or the rough surface, and the rolling track expands outward, and the continuous type unloading spiral sorting equipment can effectively sort the spherical material of 1.2mm~1.6mm of particle size, and the sorting precision is high, and the screening rate of abnormal / defective material is greater than or equal to 98%, and the mis-screening rate is less than 1.5%, and the continuous operation capacity is strong, and the energy consumption is low.
Owner:WUHAN YELLOW CRANE TOWER NEW MATERIAL TECH DEV

High-rate long-life storage battery and preparation method thereof

The invention discloses a high-rate long-life storage battery and a preparation method thereof, and relates to the technical field of storage batteries. The storage battery comprises a positive electrode, a negative electrode, a diaphragm and electrolyte, wherein the positive electrode adopts a niobium or tantalum doped lithium nickel cobalt lithium manganate material and a surface roughened aluminum foil current collector; the negative electrode adopts a mixture of graphite, a nitrogen-doped carbon nanotube and a tin-based alloy and a copper foil current collector with a copper-plated surface; the diaphragm is of a composite structure of a PE microporous membrane, a nano aluminum oxide ceramic coating and a PP microporous membrane; the electrolyte takes EC, DEC and EMC as a mixed solvent, and contains lithium hexafluorophosphate and lithium difluoro (oxalato) borate additives. The preparation method comprises the steps of electrode synthesis, slurry preparation, coating, assembly, formation and the like. The 5C charging efficiency of the storage battery is more than 95%, the 10C discharging capacity standard scale value is more than 90%, the 1C 3000-time circulation capacity retention rate is more than 80%, and the storage battery has high rate performance, long service life and high safety.
Owner:SUNSHINE YUCHEN (SUZHOU) TECH CO LTD

Injection molding machine and use method

The invention discloses an injection molding machine and a use method, and belongs to the field of injection molding equipment. A material box, an injection molding machine body and a forming mold are arranged on the rack; a flow guide cavity for introducing a cooling medium is formed in the forming mold; a water inlet pipe and a water outlet pipe are respectively assembled at two ends of the flow guide cavity; a discharging hole is formed in the side wall of the material box; a feeding hole matched and communicated with the discharging hole is formed in the top wall of the injection molding machine body; a guide plate with a rough upper surface is arranged in the material box, and the bottom wall of the discharge hole and the top surface of the guide plate are coplanar; according to the scheme, cooling water with waste heat discharged by the forming die is introduced into the cavity of the pressing plate, the heat-conducting elastic film is driven by water pressure to be tightly attached to and wrap the material for large-area contact type heat exchange, and the originally lost low-grade waste heat is directly fed back to be used for preheating the normal-temperature material at the front end; and the electric energy consumption of the subsequent melting procedure of the injection molding machine body is reduced, and the effect of energy closed-loop efficient utilization is achieved.
Owner:KUNSHAN DINGQING PRECISION MOULD CO LTD

Sintered silicon nitride ceramic surface roughening liquid and application thereof

PendingCN121494624AMetallurgySurface roughening
The invention relates to the technical field of ceramic roughening treatment, and discloses sintered silicon nitride ceramic surface roughening liquid and application thereof. The roughening liquid contains H < + >, NO3 <->, Cl <-> and F <->; the molar concentration of H < + > in the roughening solution is 10-20 mol / L, the molar concentration of NO3 <-> is 1.5-3.5 mol / L, the molar concentration of Cl <-> is 0.5-2.8 mol / L, and the molar concentration of F <-> is 7-12 mol / L; h < + > is provided by inorganic acid; cl <-> is provided by inorganic chlorate. The sintered silicon nitride ceramic surface roughening liquid provided by the invention can realize roughening treatment on sintered silicon nitride ceramic, and the roughening treatment is low in temperature, short in time, difficult to volatilize, long in service life and stable.
Owner:LENS TECHNOLOGY CO LTD

High-strength, high-conductivity and high-wear-resistance nickel-plated chopped carbon fiber reinforced copper-based composite material and preparation method thereof

The invention discloses a high-strength, high-conductivity and high-wear-resistance nickel-plated short carbon fiber reinforced copper-based composite material and a preparation method thereof, and belongs to the technical field of metal-based composite materials. The preparation method comprises the following steps: carrying out surface roughening, sensitization and activation pretreatment on short carbon fibers, and then carrying out chemical nickel plating to form a nickel layer; mixing the nickel-plated short carbon fiber with oxygen-free copper zirconium CuZr0. 1 alloy powder, and carrying out cold press molding; and the copper-based composite material is subjected to rapid vacuum hot pressing sintering for 30-60 min at the temperature of 800-900 DEG C and the axial pressure of 30-50 MPa, the obtained copper-based composite material has high strength, high conductivity (80% IACS or above) and excellent wear resistance (the wear rate is smaller than or equal to 1.1 * 10 <-5 > mm < 3 > / m), and the technical problems that a traditional carbon fiber / copper-based composite material is poor in interface bonding and low in conductivity are solved. The method is suitable for high-performance conductive wear-resistant parts in the fields of aerospace, traffic rails and the like.
Owner:JINAN UNIVERSITY +1

Production device of composite floor slab

The invention discloses a composite floor slab production device which comprises a supporting base, a pouring mold is arranged on the supporting base, a supporting column is arranged on the supporting base, a supporting suspension is arranged on the supporting column, two guide rails are arranged at the bottom of the supporting suspension, and a supporting frame is arranged below the supporting suspension. The two ends of the supporting frame are in sliding connection with the corresponding guide rails correspondingly, and a driving piece used for controlling the supporting frame to reciprocate is arranged on the supporting suspension. A supporting strip is horizontally arranged at the bottom of the supporting frame, the length direction of the supporting strip is perpendicular to the moving direction of the supporting frame, a plurality of galling claws are vertically arranged at the bottom of the supporting strip and arranged at equal intervals in the length direction of the supporting strip, and grooves can be drawn in the concrete surface through the bottom ends of the galling claws so that the surface of the composite floor slab can be rough. According to the invention, mechanical galling operation in the production process of the composite floor slab can be realized, the burden of workers is reduced, the production efficiency is improved, and the production consistency of the composite floor slab is improved.
Owner:北京建工一建工程建设有限公司

Paint surface texturing and cleaning device

The invention relates to the technical field of ship paint spraying, in particular to a paint surface texturing and cleaning device. The paint surface texturing cleaning device comprises a shell, a laser light source, a collimating head, a Powell prism, a plano-convex cylindrical surface focusing lens, a micro-cylindrical lens array and a mode switching module. A collimating head, a Powell prism, a plano-convex cylindrical focusing lens and a micro-cylindrical lens array are sequentially arranged in the shell at intervals in the transmission direction of laser emitted by the laser light source, and the central axis of the Powell prism and the central axis of the plano-convex cylindrical focusing lens coincide with the optical axis of the laser. The micro-cylindrical lens array is movably arranged in the shell and provided with a texturing position and a cleaning position, and the mode switching module is in transmission connection with the micro-cylindrical lens array so as to drive the micro-cylindrical lens array to move to the texturing position or the cleaning position. The paint surface texturing and cleaning device can generate one-dimensional dot matrix light spots equally divided by total laser energy, the uniform and non-ablation paint surface texturing effect is achieved, and meanwhile switching between the paint surface texturing mode and the paint removing / rust removing operation mode is achieved.
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

Composite electrode material and preparation method and application thereof

The application relates to the technical field of electrolytic water oxygen production, in particular to a composite electrode material and a preparation method and application thereof. The preparation method of the composite electrode material comprises the following steps: roughening the surface of a stainless steel mesh by performing first CV activation on the stainless steel mesh in a KOH solution, releasing Cr 3+ ions in the stainless steel mesh 3+ ions, and obtaining the stainless steel mesh after CV activation; performing second CV activation on the stainless steel mesh after CV activation in a Ni 2+ ion solution, forming Cr-doped nickel-iron hydroxide covering the surface of the stainless steel mesh, and obtaining the composite electrode material. The Cr-doped nickel-iron hydroxide loaded on the surface of the stainless steel mesh obtained by the preparation method can solve the technical problems of iron element dissolution, deactivation and active stability decline of the existing nickel-iron hydroxide in a long-period oxygen evolution process.
Owner:SHANDONG UNIV OF SCI & TECH

High-pressure-resistant hydrogen-embrittlement-resistant metal rubber composite sealing material and preparation method thereof

The invention belongs to the field of sealing materials, and discloses a high-pressure-resistant hydrogen embrittlement-resistant metal rubber composite sealing material and a preparation method thereof. The high-pressure-resistant and hydrogen-embrittlement-resistant metal rubber composite sealing material comprises a titanium alloy base material, a metal rubber layer and a metal rubber layer which are sequentially stacked from bottom to top, the titanium oxide layer is generated on the surface of the titanium alloy base material in situ; and the rubber layer is adhered to the surface of the titanium oxide layer through hot pressing treatment. The invention further discloses a preparation method of the high-pressure-resistant and hydrogen-embrittlement-resistant metal rubber composite sealing material, and the hydrogen-embrittlement-resistant metal rubber composite sealing material which can still keep stable deformation in a high-pressure environment is prepared by constructing the hydrogen-inhibiting oxidation layer and combining surface roughening, laser irradiation treatment and hot pressing treatment. After the high-pressure-resistant and hydrogen-embrittlement-resistant metal rubber sealing material is kept in a 100 MPa high-pressure hydrogen environment for 1000 hours, the tensile strength retention rate is larger than or equal to 88%, the percentage elongation retention rate after fracture is larger than or equal to 80%, and the deformation is smaller than or equal to 0.5%.
Owner:POWERCHINA ZHONGNAN ENG

Preparation method of metal bipolar plate surface doped cobalt phthalocyanine PANI composite coating

PendingCN121450232AAnti-corrosive paintsFuel cellsCobalt phthalocyanineAcyl group
The invention discloses a preparation method of a cobalt phthalocyanine PANI doped composite coating on the surface of a metal bipolar plate. The method comprises the following steps: carrying out surface roughening and acid activation pretreatment on the metal bipolar plate; the preparation method comprises the following steps: preparing precursor slurry from cobalt phthalocyanine and an aniline monomer in an acid environment through in-situ oxidative polymerization; the preparation method comprises the following key steps: introducing an independently designed and synthesized sulfonyl-bis-imidazoline-containing electron bridging aromatic ring as a multifunctional dopant, and effectively bridging a polyaniline chain and cobalt phthalocyanine molecules through the strong electron withdrawing effect of sulfonyl and the coordination synergistic effect of a bis-imidazoline ring to construct a stable three-dimensional conductive network; and finally, coating an activated substrate with the obtained composite slurry, and carrying out heat treatment to form a compact coating. The contact resistance of the composite coating is lower than 8.5 m omega.cm, the corrosion current density is lower than 0.1 mu A / cm, the binding force of the coating reaches the 5B grade, and the composite coating has high conductivity, high corrosion resistance and excellent interface stability.
Owner:JIANGSU HYDROGEN TECH CO LTD

Surface roughening method for transparent material with smooth surface

PCT designated stageWO2026174415A1Rough surfaceSurface roughening
The present invention discloses a surface roughening method for a transparent material with a smooth surface, which includes the following steps: A coating is arranged on one side surface of the transparent material, and an intense light pulse is applied on the other side surface of the transparent material, utilizing the intense light pulse to pass through the transparent material to reach the coating; and a clean, highly transparent and rough surface is formed on the side surface of the transparent material originally provided with the coating. The present invention effectively realizes the roughening of the smooth surface of the transparent material, and avoids the technical disadvantages of glass surface etching, machining (such as sandblasting), laser machining and other processes in the prior art.
Owner:CNBM RESEARCH INSTITUTE FOR ADVANCED GLASS MATERIALS GROUP CO LTD

A method of applying a non-stick pot plasma coating

PendingCN122303782AMetallurgyPlasma coating
This invention discloses a method for applying a plasma coating to non-stick pans, relating to the field of plasma spraying technology. The specific steps of this method are: substrate pretreatment and forming, substrate adaptation brazing, surface sandblasting and roughening, plasma cladding for film formation, and post-treatment sealing. This invention achieves a suitable surface state for pans with different substrate types by performing differentiated pretreatments. Iron plate substrates obtain long-term stable rust prevention capabilities through deep nitriding rust prevention treatment, meeting the long-term use requirements of iron plate non-stick pans. Stainless steel substrates eliminate unnecessary processing steps, effectively controlling production costs. Furthermore, the surface roughening process removes various impurities from the substrate surface and forms a uniform adhesion base on the substrate surface, ensuring a stable bonding structure between the coating and the substrate and preventing coating peeling during long-term hot and cold cycle use of the pan.
Owner:SHANDONG MEILUHUA ELECTRIC APPLIANCE CO LTD

Ice protection coating and bonding methods thereof

ActiveUS12692006B2EpoxyCoated surface
A method for bonding an icephobic coating layer to an exterior surface of a substrate, the method including roughening the exterior surface of the substrate to provide a roughened substrate surface; roughening a backside surface of the icephobic coating layer to provide a roughened icephobic coating surface; placing an epoxy film adhesive layer on the roughened substrate surface to cover at least part of the exterior surface of the substrate; placing the roughened icephobic coating layer on the epoxy film adhesive layer such that the roughened icephobic coating surface is in contact with the epoxy film adhesive layer, thereby providing a layered stack; enclosing the layered stack in a vacuum bag; applying a vacuum to the vacuum bag, and heating the layered stack enclosed in the vacuum bag; cooling the layered stack; releasing the vacuum; and removing the layered stack from the vacuum bag to provide an icephobic-coated substrate.
Owner:THE BOEING CO