46 results about "Micro texture" patented technology

The invention belongs to the technical field of image processing, and particularly relates to a coded disc surface tiny scratch recognition method based on micro texture feature analysis, which comprises the following steps: acquiring a coded disc grating texture image and converting the coded disc grating texture image into a rectangular coordinate system to obtain an expanded grey-scale map; the optimal main direction of the grating texture is determined through rotation projection analysis; for each pixel point in the grey-scale map, sampling along two sides of the optimal main direction to form a reference sample; calculating a weighted average value of the gray values of the sample points in the reference sample to obtain a trend prediction value, calculating a residual error between the gray values of the pixel points and the trend prediction value, and determining a texture deviation index in combination with the change condition of the gray values of all neighborhood pixel points of the pixel points; and finally, identifying the scratches through threshold segmentation. According to the method, the grating edge interference can be effectively inhibited under the strong periodic texture background, and the tiny scratch features can be accurately extracted.

The invention discloses a welding quality on-line detection method based on machine vision, and particularly relates to the field of welding quality detection.The welding quality on-line detection method comprises the steps that multi-dimensional basic data collection is conducted, the two-dimensional form, heat distribution, micro texture, three-dimensional topological data and welding process parameters of a welding seam are obtained, and a full-dimensional original data set with time-space synchronization is constructed; performing feature decoupling on the data, respectively constructing geometric morphology, thermal, texture and three-dimensional topological feature functions, and converting unstructured data into structured feature values; integrating multi-dimensional features through a nonlinear deep fusion model, introducing thermal probability mapping, texture attention weighting and a three-dimensional residual compensation mechanism, and outputting a weld comprehensive quality value; and finally, positioning dominant defect dimensions and identifying defect types in combination with a dynamic threshold model to finish quality grading judgment. Multi-dimensional accurate detection and dynamic grading of the welding quality are achieved, different scene requirements are met, and the detection efficiency and the judgment accuracy are improved.

Provided herein are inspection systems and methods for detecting MTR present within a subsurface volume of a sample. These methods use acoustic transducers and optional near-surface sensors to introduce inspection energy into a sample. The signal data representing the examination energy is analyzed to detect the MTR. In some methods, an offset of a frequency distribution of signal data is determined. In other methods, a distribution of values of a given characteristic of the signal data, such as amplitude or frequency, is calculated, and a quantitative description of the distribution is calculated. Response scores and / or intensity maps may be generated for the samples based on the analysis of the signal data. An MTR score indicative of the MTR in the sample may be related to the response score and / or the intensity map. The sample may then be processed based on the response score and / or the intensity map and its correlation with the MTR score.

The invention discloses a manufacturing process and equipment of a high-performance long-service-life cold working die. The process comprises the following steps: quenching and tempering a cold-work die steel blank to obtain a tempered martensite structure; plasma nitrocarburizing is carried out to form a reinforced diffusion layer; the micro-pit array is machined through pulse laser, and an annular heat-affected softening zone is formed around the opening of the pit; depositing a hard coating, and forming a cantilever structure on the edge of the micro pit; wherein plasma nitrocarburizing is carried out in a low-pressure plasma atmosphere, laser processing and coating deposition are carried out in a vacuum or protective atmosphere, and transfer among the steps is not exposed to the atmosphere. The invention further provides corresponding manufacturing equipment which comprises a heat treatment cavity, a plasma nitrocarburizing cavity, a surface micro-texture machining cavity, a coating deposition cavity and a vacuum transfer cavity. According to the invention, the hardness mutation between the coating and the matrix is relieved, a hardness gradient transition structure is constructed, the fatigue stripping resistance of the coating is obviously improved, and the service life of a mold is prolonged.

Provided herein are inspection systems and methods for detecting MTR present within a subsurface volume of a sample. These methods use acoustic transducers and optional near-surface sensors to introduce inspection energy into a sample. The signal data representing the examination energy is analyzed to detect the MTR. In some methods, an offset of a frequency distribution of signal data is determined. In other methods, a distribution of values of a given characteristic of the signal data, such as amplitude or frequency, is calculated, and a quantitative description of the distribution is calculated. Response scores and / or intensity maps may be generated for the samples based on the analysis of the signal data. An MTR score indicative of the MTR in the sample may be related to the response score and / or the intensity map. The sample may then be processed based on the response score and / or the intensity map and its correlation with the MTR score.

The invention discloses a locomotive detection image filtering processing method and system, and relates to the technical field of computer vision and image process.The locomotive detection image filtering processing method has the advantages that a multi-stage cooperative processing framework is constructed, structural priori knowledge is introduced for intelligent guidance, and compared with simple superposition of a traditional method, various noises are effectively suppressed, and meanwhile, the detection efficiency is improved. Important information such as micro textures and structure edges of key components is protected and enhanced, and the overall definition and detail integrity of the image are remarkably improved; according to the invention, by providing high-quality and low-noise image data, a solid and reliable foundation is provided for a subsequent automatic detection task; according to the method, a closed-loop optimization mechanism of quality evaluation and parameter dynamic feedback is introduced, so that the processing method can automatically adapt to different detection scenes, the processing effect can be self-diagnosed, internal parameters can be dynamically adjusted, and the stability and consistency of output image quality are ensured.

The application relates to a substrate with micro-nano composite texture and a preparation method and application thereof, and belongs to the technical field of biological medicine. The preparation method comprises the following steps: S1, adopting a nanosecond laser to perform texture treatment on pretreated metal titanium, forming micro texture on the surface of the metal titanium, and obtaining micro texture metal titanium; S2, uniformly stirring ammonium fluoride in ethylene glycol, then uniformly stirring water in the ethylene glycol, and obtaining an electrolyte; S3, connecting the positive pole of a direct current power supply to the micro texture metal titanium as an anode, connecting the negative pole of the direct current power supply to a platinum electrode as a cathode, and performing magnetic field assisted anodic oxidation treatment on the micro texture metal titanium in the electrolyte, so that nano texture is formed on the surface of the micro texture metal titanium; and after cleaning and drying, a substrate with micro-nano composite texture is obtained. The substrate is applied to a drug-loaded coating of a metal implant, can realize micro-nano multi-scale cooperation, integrates the macrostructure advantage of the micron texture and the surface characteristics of the nanotube, and greatly improves the comprehensive performance of the drug-loaded coating.

The application discloses a kind of with gradient buffer structure and surface microtexture enjoy floor and its preparation method.The floor includes surface microtexture layer, gradient solidification UV coating, gradient buffer structure, substrate layer and fast lock buckle system.Surface microtexture layer has double texture of pit array and microprojection array, realize wet / dry state antiskid, easy cleaning and scratch resistance.Gradient buffer structure is made of surface layer microresponse layer, core energy absorption layer and bottom stress dispersion layer, realize nonlinear impact response, give consideration to walking stability and fall protection.Through finite element simulation to buffer layer predeformation compensation, eliminate warping;Pit edge stress concentration activates buffer layer, shortens impact response time 15%-25%.The application first realizes the integration of old and pet friendly function, is applicable to home old and pet family, with excellent buffering, antiskid, durable, easy maintenance performance.

The invention discloses an integrated forming process for a water cup mouth cover. The integrated forming process comprises the following steps that firstly, a plastic base material is formed; 2, inspecting the plastic base material; step 3, brushing a special primer on the joint surface; 4, baking and curing the primer; step 5, injecting silica gel for integral molding; step 6, carrying out edge removal treatment on the crude product; 7, water boiling purification treatment; 8, removing the supporting column and finishing the surface; step 9, comprehensive inspection of a finished product; and step 10, packaging and delivering finished products. According to the invention, through plasma activation treatment of the plastic base material bonding surface, micro-texture design of a mold cavity, use of a food-grade special primer and gradient baking curing, dual combination of physical occlusion and chemical bonding is constructed, the bonding strength of plastic and silica gel is greatly improved, stripping test verifies that the bonding surface is free of stripping and falling phenomena, and the bonding strength of the plastic and the silica gel is greatly improved. Even in long-term use, repeated opening and closing or high-temperature and low-temperature environments, the stable combination effect can still be kept.

The invention relates to the technical field of robot sensing, and discloses a micro-texture regulation and control method of an anodic alumina-based robot tactile sensor and the tactile sensor, and the tactile sensor comprises an induction sensing unit, a reference sensing unit and a signal analysis unit. The method comprises the following steps: acquiring an original capacitance change signal generated by the induction sensing unit due to pressure and an original reference capacitance signal of the reference sensing unit; performing differential preprocessing on the original capacitance change signal based on the original reference capacitance signal to obtain a net capacitance signal representing pure pressure response; extracting dynamic response characteristics from the net capacitance signal in real time; inputting the net capacitance signal into a preset pressure-capacitance mapping model to obtain an initial pressure estimation value; and generating a real-time correction value for the initial pressure estimation value according to the dynamic response characteristics, correcting the initial pressure estimation value based on the correction value, and outputting a pressure sensing result. According to the invention, the effect of accurately outputting the pressure result according to the micro texture features of the tactile sensor is realized.

The invention belongs to the field of metal molds and surface treatment, and relates to a manufacturing process of a copper-clad steel and iron hot-pressing texture template, which comprises the following steps: preparing a steel substrate, compounding a copper layer on the working surface of the steel substrate, and then carrying out flattening processing; carrying out three-dimensional texture modeling and path planning on the leveled surface of the copper layer, engraving a micro texture by using laser, and then carrying out micro shot peening strengthening on the texture surface; the template is subjected to heat treatment including steel matrix quenching and tempering treatment and gradient stress relief annealing; and depositing a vapor-regulating deposition coating and a super-hydrophobic molecular film on the surface of the template with the textures in sequence. By adopting the composite structure of the steel substrate and the copper surface layer, the high strength and high toughness of the core part and the high thermal conductivity of the surface are considered, and the performance contradiction of a single material is solved; the fineness of micron-sized textures is ensured through laser engraving, and the abrasion resistance of the textures is greatly improved from the two dimensions of mechanical strength and surface hardness through micro shot peening strengthening and a PVD superhard coating.

The utility model provides a micro-texture structure, a product with the micro-texture structure and electronic equipment. The micro-texture structure comprises a substrate and at least one bulge, wherein the bulge is arranged on at least part of the surface of the substrate, the bulge is provided with at least one connecting part, and the connecting part is connected with the substrate; an included angle alpha is formed between the connecting part and the base, and the included angle alpha is larger than or equal to 5 degrees and smaller than or equal to 45 degrees; the problem that a product subjected to surface treatment is large in surface roughness can be solved.

A bionic microtexture micro grinding head includes a micro grinding head base, the micro grinding head base includes a connecting member, the connecting member is connected to a grinding head, grain groups or grains are sequentially disposed on a surface of the grinding head, the grain groups are arranged according to a bionic pinion microstructure or a bionic scale structure, and the grains are arranged according to a bionic phyllotaxis microstructure. When the grain groups are arranged according to the bionic pinion microstructure or the bionic scale structure, each grain group includes grains; or, when the grain groups are arranged according to the bionic pinion microstructure or arranged according to the bionic scale structure, a groove is provided between two adjacent grain groups.

The invention relates to the technical field of plastics, in particular to an ultrathin micro-texture mobile phone rear cover plate and a preparation method thereof. The method comprises the following steps: carrying out end group regulation on polyhexamethylene adipamide resin through hexamethylene diamine, and carrying out melt blending on the polyhexamethylene adipamide resin, tetraethyl orthosilicate and hydroxyl-terminated polydimethylsiloxane through a sol-gel reaction to obtain hybrid inorganic powder; hydroxyl-terminated polydimethylsiloxane and hexamethylene diisocyanate are sequentially added by adopting a step-by-step feeding strategy for modification. And then molding in a mold with micro textures through an injection molding-compression molding process, and carrying out limited annealing treatment. According to the invention, the problems of incomplete micro-texture copying, easy scratching and poor thermal dimensional stability of the ultrathin plate are effectively solved, and high-precision texture transfer, excellent surface scratch resistance and long-term flatness of the plate with the thickness of 320-380 microns are realized.

The invention discloses a shield scale-imitating micro-texture mechanical sealing structure with a phase change inhibition function. The shield scale-imitating micro-texture mechanical sealing structure comprises a sealing ring, a through hole is formed in the middle of the sealing ring, a sealing end face is arranged at the end of the sealing ring, a plurality of placoid scale imitating modules are arranged on the sealing end face, and a guide groove extending in the radial direction is formed between every two adjacent placoid scale imitating modules. A plurality of groups of imitated placoid scale grooves are distributed in each imitated placoid scale module along the radial direction of the sealing ring, and the imitated placoid scale grooves in each group are communicated end to end along the circumferential direction of the sealing end surface; the outward end of the guide groove penetrates through the side face of the sealing end face, and the inward end of the guide groove is separated from the through hole. And the placoid scale imitating groove is communicated with the guide groove. According to the scheme, vapor-liquid phase change of the fluid film can be inhibited to a certain extent, the stability of the fluid film can be enhanced, contact abrasion of the sealing end face is reduced, and the service life of the sealing structure is prolonged.

The invention relates to the technical field of shaft part surface machining, in particular to an ultrasonic strengthening machining device for shaft part surfaces, which comprises a base, an ultrasonic energy field applying module and a main shaft reciprocating motion module are arranged on the base, and the main shaft reciprocating motion module is connected with an upper base. A spindle positioning and clamping module and a spindle rotation driving module are arranged on the top of the upper base. The ultrasonic energy field applying module is used for machining the outer surface of a shaft part, the main shaft positioning and clamping module is used for clamping and fixing the shaft part, and the main shaft rotation driving module and the main shaft reciprocating motion module are used for enabling the shaft part to do rotation and reciprocating rectilinear motion; according to the method, precise cooperation of rotation, reciprocating and ultrasonic motion is achieved, gradient nanostructures, microtextures and residual compressive stress are synchronously prepared on the surfaces of the shaft parts, meanwhile, machining blind areas are avoided, and full covering and uniform strengthening of the outer circle surfaces of the shaft parts are achieved.

By suppressing the deformation of the micro-textured structure due to water absorption, it achieves both anti-fog and anti-reflective functions. [Solution] An anti-reflective film 1 is provided, comprising an optical functional layer 11 made of resin, the optical functional layer 11 having a fine uneven structure 12 including protrusions 13 or recesses 14 arranged at a pitch less than or equal to the wavelength of visible light, the indentation modulus of the optical functional layer 11 being 130 MPa or more, and the water absorption rate of the optical functional layer 11 being 11% by mass or more.

The invention discloses a large-size hard, brittle and thin wafer abrasive particle track controllable grinding method and device. The large-size hard, brittle and thin wafer abrasive particle track controllable grinding device comprises a bionic fin-shaped texture grinding tool head and a piezoelectric ceramic ultrasonic body. A large number of fin-shaped micro texture units and crossed micro channels are arranged on the periphery of the texture surface of the tool head, and the central part is a smooth plane. During ultrasonic high-frequency vibration, the fin-shaped texture structure of the outer ring drives fluid to form vortex-shaped fluid, and abrasive particle track regulation and enrichment are achieved; cavitation bubbles are generated in the center and impact to remove the material after collapse; and the crossed micro-channels can promote the circulation of the grinding fluid and discharge grinding dust. According to the method, the abrasive particle track is precisely restrained through the fin-shaped textures, the abrasive particles are driven to be enriched and impact the surface of the wafer, and the material removal efficiency and the grinding precision are remarkably improved while the machining damage and fragment risks of the large-size thin wafer are reduced.

The invention relates to a preparation method of silica gel injection gloves with regionalized depth-limiting micro-textures, which comprises the following steps: regionally designing a depth-limiting micro-texture structure on the surface of a hand mold, so that silica gel can form a local closed coating area, a flow guide transition area and a flexible stretching area according to the form requirements of different parts in a gel injection process; therefore, the inner silica gel layer which is segmented in structure, controllable in thickness and highly matched with the motion characteristic of the hand of the human body is obtained. And then silica gel coupling treatment is carried out, the woven glove is sleeved outside the woven glove, and outer silica gel is injected into the second mold cavity through a multi-point gel injection structure, so that the inner silica gel layer, the woven fabric layer and the outer silica gel layer are integrally cured and formed. According to the method, the silica gel gloves move forward from a traditional single gel injection mode to the direction based on fine texture and multi-stage gel injection cooperative control, the problem that silica gel accumulation, weak area generation and uneven coverage are difficult to consider in a traditional process is solved, and the method has the remarkable advantages of being high in structural controllability, good in finished product consistency and wide in application range.

The invention provides a manufacturing method of a titanium / aluminum alloy heterogeneous interface interlocking strengthening structural material, which comprises the following steps of: directly forming a titanium alloy framework with a macroscopic sawtooth interface profile by adopting a selective laser melting (SLM) technology, and further performing laser surface micro-texture processing on a macroscopic sawtooth interface inclined surface, a micro-scale sawtooth texture arranged along an inclined plane is formed, and a'macroscopic sawtooth-micro texture 'double-scale interlocking interface is constructed. And then a titanium alloy component is placed in aluminum alloy powder, rapid densification of the aluminum alloy powder is achieved in a spark plasma sintering (SPS) device under the action of axial pressure and pulse current, metallurgical bonding with a titanium alloy interface is achieved, and the titanium / aluminum heterogeneous interlocking structure material with the high density and the thin interface reaction layer is obtained. Through the synergistic effect of macroscopic geometric interlocking and micro-scale mechanical occlusion, the interface tensile strength can be improved to 24.5 MPa from 14.1 MPa of direct combination.

The invention belongs to the technical field of dry granular glaze manufacturing, and particularly relates to a dry granular glaze with strong stereoscopic impression, a ceramic large plate and a preparation method of the dry granular glaze. The dry granular glaze with strong stereoscopic impression belongs to calcium-zinc glaze, and by improving the components of the dry granular glaze, high-content zinc oxide can partially replace calcium ions and magnesium ions, so that the dry granular glaze with strong stereoscopic impression is prepared. According to the present invention, the surface of the ceramic large plate is subjected to a reaction with the silicon dioxide to form the stable network, such that the wear resistance of the surface of the ceramic large plate is improved, the crystallization effect can be retarded, and the precipitation of the zinc-aluminum spinel and other microcrystals can be promoted so as to improve the texture level of the bright face brick, such that the tone is clearer, and the transparency is good; according to the present invention, the fine texture and the crystal texture of the natural stone material can be well restored, the pattern has characteristics of strong three-dimensional effect, good permeability, excellent antifouling property, simple preparation process, and suitableness for the preparation of the large-size ceramic plate.

Provided are a micro-textured pet-hair-resistant yoga fabric, a preparation method thereof, and its application in pet hair-resistant clothing. The micro-textured pet-hair-resistant yoga fabric can address the drawback that fiber clothes of consumers are prone to adhering to pet hair during human-pet interactions and it is difficult to clean, which can effectively minimize the pet hair adhesion.

The invention discloses a manufacturing method for preventing a pole piece from generating vertical ripples and the pole piece, and the manufacturing method comprises the following steps: preparing slurry, adding 0.5-3wt% of a rheology modifier, and carrying out three-stage dispersion treatment; adjusting the slurry, and carrying out ultrasonic treatment at the frequency of 20-60 kHz; coating pretreatment is carried out, and circulating vacuum defoaming is carried out; the current collector is subjected to gradient preheating, the first temperature zone is 40-60 DEG C, and the second temperature zone is 60-80 DEG C; constant-tension coating is carried out, and an ultrasonic-assisted device is used in the coating process; performing temperature gradient drying, wherein three temperature zones are 80-100 DEG C, 110-140 DEG C and 60-80 DEG C in sequence; and calendaring treatment: carrying out multi-stage calendaring by adopting a micro-texture calendaring roller. According to the invention, the formation of vertical corrugations of the pole piece is effectively prevented and the quality of the pole piece and the performance of the battery are remarkably improved through a pretreatment technology of accurately regulating and controlling the rheological property of the slurry and combining ultrasonic treatment and vacuum defoaming and a current collector gradient preheating and constant-tension coating technology.

This invention discloses a titanium-aluminum alloy defect detection device and method. The titanium-aluminum alloy defect detection device of this invention introduces known interference sources by attaching a micro-textured film to the surface of the workpiece during the defect detection process. Combined with a forward and reverse isokinetic scanning strategy, after obtaining the forward phase domain response signal and the reverse phase domain response signal, signal processing is performed to accurately extract the real defect signal. Thus, without damaging the workpiece surface, the surface roughness interference signal can be effectively eliminated, thereby improving the detection rate of surface and near-surface defects of titanium-aluminum alloys, reducing the false detection rate, and maintaining high resolution and high signal-to-noise ratio.

A glass-ceramic article includes at least one substrate, such as a plate, made of glass-ceramic, the substrate having a face including a microtexturing such that the arithmetic mean surface roughness Ra, measured according to standard ISO 4287, is between 0.14 and 0.40 μm, and the total roughness, Rt, measured according to standard ISO 4287, is between 1.15 and 5.00 μm.

This invention discloses a micro-textured structure for the surface of an anti-icing heat exchanger, comprising: a micro-textured structure formed on the surface of the heat exchanger; the micro-textured structure includes several micro-protrusions arranged equidistantly on the surface of the heat exchanger shell; the hemispherical shape of the micro-protrusions in this invention can more evenly disperse the contact force between ice and the heat exchanger surface, effectively avoiding concentrated erosion of the surface by ice, significantly reducing wear and corrosion of the surface material, while the trapezoidal cross-section micro-grooves and serpentine microchannels work together to efficiently accommodate and guide melted ice water, quickly draining it from the heat exchange surface, preventing ice water from accumulating and forming new ice layers, reducing the risk of icing, and the micro-textured structure increases the roughness of the heat exchanger surface, enhancing the turbulence of the fluid, while the presence of microchannels further enhances this turbulence effect, thereby significantly improving the heat transfer efficiency of the heat exchanger.

A transparent plate includes: a grating structure layer, including a first surface and a second surface opposite to each other, where a grating structure is disposed on the first surface; and a micro-texture layer, disposed on the second surface, where a surface of the micro-texture layer away from the second surface includes a plurality of micro-texture stripes, and light interferes between the grating structure and the micro-texture layer and forms moire stripes.

This invention discloses a lightweight, high-strength micro-textured composite mobile phone back cover and its preparation method. The back cover includes a surface-hardening layer, a substrate layer, and a functional coating layer stacked sequentially from the outside to the inside. This invention adopts a multi-layer structure consisting of a surface-hardening layer, a PMMA and PC composite substrate, an optical texture layer, and an inner functional coating layer, which balances strength, toughness, and appearance under relatively thin thickness conditions. At the same time, this invention adopts a process path of forming a microstructure array on a mold, simultaneously replicating the microtexture during the molding process, online spraying of the surface-hardening coating after demolding, and implementing magnetron sputtering of the functional coating on the inner side, which orderly connects the shape forming, microstructure construction, and functional film deposition in a unified production process.