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273 results about "Texture processing" patented technology

Laser texturing processing method on surface of roller

The invention discloses a laser texturing processing method on the surface of a roller, comprising the following steps: leading the roller to rotate with uniform velocity along self axes; simultaneously, leading a laser texturing head to move with uniform velocity along the axial direction of the roller; and periodically transmitting laser beam to the surface of the roller and forming texturing spots on the surface of the roller. The method is characterized in that by accelerating the moving speed V of the laser texturing head along the axial direction of the roller, the texturing spots are distributed along the high inclination-angle helical line with the thread pitch of delta being equal to 2-200mm on the roller. As the roller has no smooth straight line between the two rows of the texturing spots on the circumference of the surface of the roller, when rolling a steel plate, the roller and the steel plate can prevent from jointing at those parts, the iron slag grains can be absorbedby texturing concave holes crisscross distributed on the peripheral direction of the roller, scratch can not be produced on the length direction of the steel plate, and the iron slag grains can not fray and break the texturing spots, thereby greatly improving the rolling quality of the steel plate and the wearing resistance of the roller, and prolonging the service life of the roller.
Owner:苏州市博海激光科技有限公司

Surface texturing processing method of monocrystalline silicon solar cell

The invention discloses a surface texturing processing method of a monocrystalline silicon solar cell. The processing method comprises the following steps: cleaning oil stains and finger prints on a surface of a monocrystalline silicon wafer by ultrasonic; surface texturing, which comprises putting the ultrasonic cleaned monocrystalline silicon wafer into a texturing tank which contains a sodium hydroxide solution having a mass volume percentage of 2%, performing surface corrosion texturing processing; and adding TS4 as a texturing catalyst into the sodium hydroxide solution to increase a silicon surface corrosion speed and uniformity of surface corrosion; removing an oxide from the surface of the monocrystalline silicon wafer, and cleaning the monocrystalline silicon wafer by using a hydrofluoric acid solution (a concentration of 49%) with a volume percentage of 16%; removing metal ions, and cleaning the monocrystalline silicon wafer by using a hydrochloric acid solution (a concentration of 37%) with a volume percentage of 28%; and drying the final monocrystalline silicon wafer with a pyramid-shaped surface. According to the invention, a surface texturing speed of the monocrystalline silicon wafer is increased; uniformity of surface texturing of the monocrystalline silicon wafer is improved; and then monocrystalline silicon solar cell prepared by the method is higher in photoelectric conversion efficiency of the solar cell and good in stability. The surface texturing processing method is a better choice for application of photovoltaic power generation.
Owner:江苏天宇光伏科技有限公司

Real-time water wave texture processing method based on 2D (Two-dimensional) grid

The invention is applicable to the field of image processing, and provides a real-time water wave texture processing method based on a 2D (Two-dimensional) grid. The method comprises the following steps: setting the grid for simulating water wave texture according to the length-width ratio of a display image and setting a texture coordinate for each node in the grid; simulating the transfer of a water wave into a sine wave and calculating the height valve when the water wave reaches each node of the grid according to a wave equation; calculating the increment of the texture coordinate of each node according to the height valve of each node and fluctuation average method vectors; and rendering the fluctuation of the generated water wave on a real time according to the increment of the texture coordinate and the fluctuation average method vectors. According to the embodiment of the invention, the texture coordinate is set for each node of the grid, the increment of the texture coordinate is calculated according to the height value of each node, and a water wave image is further simulated, so that the water wave image can be simulated only through calculating a wave equation without a derivation algorithm, an integral algorithm and other complicated algorithms, and the demands on display equipment hardware is reduced.
Owner:TCL CORPORATION

Method and device for preparing film coating micronano texture

The invention relates to a method and a device for preparing a film coating micronano texture and belongs to a film coating of surface engineering. The preparation method comprises the steps of preparing at early stage, depositing the film coating, preparing the micronano texture and performing aftertreatment. The special device is a multi-beam pulse laser micronano texture processing system device. The multi-beam pulse laser micronano texture processing system device comprises a pulse laser module, an optical path transmission module and a precise scanning module which are connected with one another sequentially. The invention has the advantages that: the method and the device are convenient in processing and high in efficiency; preparation for the film coating deposition micronano texture on the surface of a material is realized by one laser source; the process is simple, and easy to control; the prepared samples are not subjected to a complex posttreatment process; the application range is wide; ultraviolet pulse laser has the characteristics of large photon energy and short wavelength and can perform precise micronano texture treatment on any materials; chemical reaction of various gases can be induced; and film coating deposition can be performed efficiently.
Owner:CHINA UNIV OF MINING & TECH

Laser texturing processing method on surface of roller

The invention discloses a laser texturing processing method on the surface of a roller, comprising the following steps: leading the roller to rotate with uniform velocity along self axes; leading a laser texturing head to move with uniform velocity along the axial direction of the roller; and periodically transmitting laser beam to the surface of the roller and forming texturing spots on the surface of the roller. The method is characterized by leading focal light spots to randomly swing with low amplitude from left and right at a preset spiral line so as to produce the irregularly distributedtexturing spots on the surface of the roller. As the roller has no smooth straight line between the two rows of the texturing spots on the circumference of the surface of the roller, when rolling a steel plate, the roller and the steel plate can prevent from jointing at those parts, the iron slag grains can be absorbed by texturing concave holes crisscross distributed on the peripheral directionof the roller, scratch can not be produced on the length direction of the steel plate, and the iron slag grains can not fray and break the texturing spots, thereby greatly improving the rolling quality of the steel plate and the wearing resistance of the roller, and prolonging the service life of the roller.
Owner:苏州市博海激光科技有限公司

Method and device for establishing three-dimensional reconstruction model of space moving target

The invention discloses a method and a device for establishing a three-dimensional reconstruction model of a space moving target. The method comprises the following steps: acquiring a space monocularimage sequence of space debris or a failure satellite; adopting the trained generative adversarial network to train a spatial monocular image sequence so as to eliminate flare and shadow of each spatial monocular image in the spatial monocular image sequence, and generating a first image sequence; extracting a feature value matching relationship between each image in the first image sequence and other images through a scale invariant feature transformation method; establishing a three-dimensional model sparse point cloud of the space debris or the failure satellite according to the characteristic value matching relationship; generating a three-dimensional model grid model according to the three-dimensional model sparse point cloud, and sequentially performing grid filtering and texturing processing on the three-dimensional model grid model to obtain a three-dimensional reconstruction model of space debris or a failure satellite; according to the invention, the problem of distortion ofthe three-dimensional reconstruction model when the three-dimensional reconstruction model of the spatial moving target is reconstructed according to the spatial monocular image sequence can be solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
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