11 results about "Micro spheres" patented technology

The invention discloses a cooperative control method for manufacturing precision between complex thin-wall microsphere shell component forming processes, and relates to the technical field of microsphere shell component machining. The invention relates to a multi-process forming method for a micro-spherical crown structure on the surface of a complex thin-wall micro-spherical shell component in the prior art. According to an existing manufacturing precision keeping and reference transferring method, due to factors such as low soft and brittle hardness of a workpiece material, high precision requirement and multiple processes, the pose precision and the manufacturing precision of a micro-spherical shell are difficult to keep in multi-process circulation. The device is used for four workpiece circulation processes of material milling removal-laser etching marking-milling quality characterization-laser local modification-surface quality detection corresponding to three processes of milling removal of a micro spherical crown structure on the surface of a thin-wall micro spherical shell component, laser modification and measurement characterization. All the steps cooperate to achieve high-precision forming of the micro-spherical crown structure on the surface of the complex thin-wall micro-spherical shell component. The method is used for forming the complex thin-wall microsphere shell component.

The invention relates to two-component coating materials for producing anti-reflective coatings, wherein the binder component contains one or more polymer polyols, black plastic spheres having D50 sphere diameters in the range of 9 to 17 μm, and black pigments, and wherein the hardener component has one or more isocyanates. The invention also relates to methods for producing said anti-reflective coatings and to the use thereof on components and devices having functions that are impaired by the reflection of electromagnetic radiation, in particular by the reflection of light.

A coating composition, a preparation method therefor and use thereof are provided. The coating composition includes at least 60% heat-expandable microspheres having a wall thickness of less than or equal to 5 μm, a water-based thermoplastic resin, a water-based thermosetting resin, and a hot-melt filling resin. Thin-shell spheres can be quickly softened and ruptured within a short time in the heat-expansion process, and with the volatilization of an organic solvent, the coating composition cross-links with a resin matrix in the coating to form a cross-linked network structure, thus strengthening the gap support of the coating, and enabling the coating to achieve stepped expansion. After expansion, some polymer materials wrap an airbag and harden to form a stable hollow structure. Therefore, the expanded coating can be used for the fixation of high temperature-resistant parts, and can maintain adhesive stability when placed in a high-temperature environment (140-180° C.) for a long time.

A method includes extruding a mixture through a nozzle to form a structure of extruded filaments arranged in a pre-defined arrangement. The mixture includes a first ink and a second ink with each of the inks having a matrix material and a filler. The second ink includes a plurality of unexpanded gas-filled microballoons. In addition, the method includes heating the extruded filaments of the formed structure under a negative pressure system for expanding the unexpanded gas-filled microballoons to achieve intra-filament porosity and curing the matrix material of the extruded filaments to at least a pre-defined extent. A ratio of the first ink to the second ink in the mixture extruded through the nozzle is pre-defined and / or controlled.

The application discloses a composite tailor-welding method for improving the yield of an aluminum-silicon coated plate integrated door ring, and belongs to the technical field of tailor-welding methods.The method comprises the following steps: preparing a plurality of door ring blanking pieces, all of which are aluminum-silicon coated plate materials; and connecting the blanking pieces into an integrated door ring by tailor-welding, wherein the connection mode between one blanking piece and the adjacent two sides is lap joint, the lap joint strength at the two places is realized by resistance spot welding, the other connections are butt joints, and the strength is realized by laser tailor-welding, the laser tailor-welding adopts a micro-sphere reinforced welding wire, and the preparation method of one of raw materials of the micro-sphere reinforced welding wire, porous micro-sphere composite metal powder, is modifying camphor by using cation starch modified kaolin and sodium lignosulfonate, and mixing the camphor with Al-Si-Sr alloy micro-sphere powder to form pores.Through the above method, the yield of the aluminum-silicon coated plate integrated door ring is improved.

The invention relates to one-component, water-thinnable coating materials for producing antireflection coatings on substrate surfaces. The coating materials contain one or more water-dilutable, aliphatic polyurethane resin dispersions, black plastic spheres having sphere diameters d50 in the range from 9 to 17 µm and black pigments. The invention further relates to methods for producing the antireflection coatings and to the use thereof for components and devices whose functions are impaired by the reflection of electromagnetic radiation, more particularly by the reflection of light.

The application relates to an integrated process method for super-precision machining and detection of a complex micro-component surface microstructure, and belongs to the technical field of micro-component surface machining.The application is used for solving the problem that the single super-precision cutting, energy beam micro-nano machining technology and contact type detection technology cannot meet the high-precision and high-efficiency forming requirement of the microstructure of a micro-component surface due to the low manufacturing response capability, micro-space constraint, insufficient measurement range and the fact that the precision benchmarks of the technologies cannot be unified.The application realizes the preliminary high-efficiency forming of a micro-spherical crown structure by milling and removing the microstructure material based on a super-precision micro-milling machining device; the local profile and surface topography of the spherical crown are precisely controlled by an ultraviolet nanosecond laser machining device to realize laser reshaping; the machining precision of the micro-spherical crown after each process forming is quantified based on a special complex micro-component measuring system and a non-contact lossless detection method to realize machining quality characterization.The application is used for complex micro-component surface machining.

This concerns two-component coating materials for the production of antireflective coatings, wherein the binder component contains one or more polymer polyols, black plastic spheres with sphere diameters d50 in the range of 9 to 17 µm, and black pigments, and the hardener component comprises one or more isocyanates. It further concerns processes for the production of the antireflective coatings and their use in components and devices whose functions are impaired by the reflection of electromagnetic radiation, in particular the reflection of light.

The invention discloses a composite tailor-welding method for improving the yield of an aluminum-silicon coating plate integrated door ring, and belongs to the technical field of tailor-welding methods.The method comprises the steps that a plurality of door ring blanking parts are prepared, all materials are aluminum-silicon coating plates and material pieces which are connected into the integrated door ring in a tailor-welding mode, one material piece is in lap joint with the two adjacent sides, and the other material piece is in lap joint with the two adjacent sides; the lap joint strength of the two parts is achieved through resistance spot welding, other parts are in butt joint, the strength of the other parts is achieved through tailored blank laser welding, and microsphere enhanced welding wires are adopted for tailored blank laser welding. The preparation method of porous microsphere composite metal powder, which is one of the raw materials of the microsphere enhanced welding wire, comprises the following steps: modifying camphor by using cationic starch modified kaolin and sodium lignin sulfonate, and mixing the modified camphor with Al-Si-Sr alloy microsphere powder to form pores. In this way, the yield of the aluminum-silicon coating plate integrated door ring is increased.

This invention belongs to the field of optical fiber application technology, specifically relating to a method for fabricating a PDMS-modified fiber end-face microsphere Fabry-Perot temperature sensor. 1. Using an optical fiber fusion splicer, the end faces of two optical fibers are thermally fused into spherical end faces. 2. After dipping the spherical end faces of the optical fibers in glycerin, the fiber cores are aligned. 3. The spherical end faces of the two optical fibers are fused together, forming microbubbles at the fused end face. 4. Continuous discharge is applied while simultaneously applying axial tension, causing a conical bubble to form at the discharge center. Axial tension is continued until the single-mode fiber is broken at the fused end face. 5. Discharge continues, causing the volume of the microbubble sphere at the discharge center end face to gradually increase until the radial diameter of the microbubble sphere is larger than the diameter of the single-mode fiber cladding. 6. A PDMS thin film layer is coated onto the surface of the microbubble sphere of the optical fiber using a multi-dip method. The resulting sensor achieves a significant improvement in temperature measurement sensitivity under the same structural strength.

The invention relates to one-component, water-dilutable coating materials for producing antireflective coatings on substrate surfaces. The coating materials contain one or more water-dilutable, aliphatic polyurethane resin dispersions, black plastic spheres with sphere diameters d50 in the range of 9 to 17 µm, and black pigments. The invention further relates to methods for producing the antireflective coatings and their use in components and devices whose functions are impaired by the reflection of electromagnetic radiation, in particular by the reflection of light.