98 results about "Automotive coating" patented technology

The invention discloses a synergistic compound light stabilizer for an automobile coating and a preparation method of the synergistic compound light stabilizer, and belongs to the technical field of coating additives. The light stabilizer comprises the following components in percentage by mass: 30-50% of a hindered amine light stabilizer, 20-40% of an ultraviolet light absorber, 5-15% of surface modified nano cerium dioxide, 5-10% of a hyperbranched polyester anti-migration aid and the balance of a solvent, wherein the ultraviolet light absorber is a mixture of benzotriazole and triazine in a mass ratio of (1: 1)-(1: 3); the particle size of the nano cerium dioxide is 10-50nm, and the surface of the nano cerium dioxide is coated with a silane coupling agent; the preparation method comprises the following steps: modifying the surface of nano cerium dioxide, shearing and dispersing multiple components at a high speed, and adjusting and filtering a solvent; the weather resistance of the automobile coating is remarkably improved and the service life of the automobile coating is remarkably prolonged through the synergistic effect of a plurality of light stabilizing components and the combination of the photocatalytic degradation capability of the nano cerium dioxide and the anti-migration characteristic of the hyperbranched polyester.

The invention belongs to the technical field of automotive coatings, and particularly relates to finishing-free water-based plain finish paint and a preparation method thereof. The water-based blocked isocyanate and the water-based hydroxyl acrylate are crosslinked to form a carbamate bond and construct a three-dimensional hydrogen bond network, so that the mechanical strength, the sagging resistance and the chemical resistance of the finish paint are remarkably improved; amino resin is modified through dialdehyde lignin, hydrophilic groups in the amino resin are eliminated, reversible imine bonds are generated, and the acid-base hydrolysis resistance of the finish paint is enhanced; the polyether-polysiloxane is grafted with the water-based blocked isocyanate, so that the storage stability of the finish paint is ensured, the sagging phenomenon of a vertical surface is inhibited, the surface tension of the finish paint is reduced, orange peel is eliminated, and the integrated performance improvement of high weather resistance, sagging resistance and low orange peel of the finish paint is realized.

The invention discloses a preparation method of hydroxy acrylic resin and the hydroxy acrylic resin, and belongs to the field of paints.The preparation method comprises the following steps that S01, a monomer and part of an initiator form a mixed solution, an initiator solution and a terminator solution; s02, adding materials; s03, dropwise adding the mixed solution; s04, dropwise adding an initiator solution; s05, terminating the reaction; and S06, filtering to obtain a hydroxy acrylic resin product. The method disclosed by the invention is environment-friendly, and the prepared hydroxy acrylic resin is applied to automobile coatings and has the advantages of higher hardness, scratch resistance, high gloss and quick drying.

A method of producing a charred sludge material includes combining automotive paint sludge (APS) with a lignin to form an APS-lignin mixture and turning the APS-lignin mixture into char.

The invention relates to the technical field of automobile coating testing, in particular to an automobile coating wear resistance tester and a testing method, and the automobile coating wear resistance tester comprises a testing platform, a testing mechanism and a locking unit. According to the invention, a plurality of different comparison groups are arranged by adding the test stations, and different grinding head materials and different acting forces applied by the grinding heads are taken as references, so that the wear condition of the automobile coating under the real condition is simulated, the authenticity of the test result is improved, and the test efficiency is improved by simultaneously testing and comparing the plurality of stations; according to the technical scheme, the complex processes of repeatedly replacing the grinding head for multiple times, applying different downward pressure and repeatedly testing for multiple times are omitted, then, multiple stations can be arranged for simultaneous testing according to testing requirements, simultaneous locking of all the stations is completed through the locking unit, and the testing efficiency and the convenience of the testing process are improved.

The invention relates to the technical field of automobile coating testing, in particular to an automobile coating adhesion performance testing machine and a testing method.The automobile coating adhesion performance testing machine comprises a base, a limiting block used for limiting a sample plate is fixedly installed on the upper end face of the base, an n-shaped frame located above the limiting block is fixedly installed on the upper end face of the base, and a downward pressing mechanism is arranged on the n-shaped frame. A limiting, cutting and adhering integrated operation model is adopted to complete cross-grid testing of different intervals of the automobile coating sample plate, an efficient, accurate and standardized testing process is achieved, uniform pressure control ensures that the cutting depth and force of grids with different intervals on the surface of the sample plate are consistent, and a base material is prevented from being damaged; the testing efficiency is greatly improved through cross-shaped limiting and synchronous cutting, it is ensured that the angle of each grid is accurate to be 90 degrees, meanwhile, coatings with different hardness and thicknesses can be easily coped with only by adjusting the pressure, the operation consistency is remarkably enhanced in the automatic adhesive tape adhering and tearing process, and the testing quality and efficiency are comprehensively improved.

The invention discloses an anti-aging bronze powder pigment and a preparation method and application thereof in the technical field of bronze powder pigments, and the anti-aging bronze powder pigment takes copper-zinc alloy as a base material, and is sequentially connected with a composite chemical passivation layer, a functionalized organic-inorganic hybrid compact barrier layer and a surface super-hydrophobic layer through chemical bonding from inside to outside; wherein the composite chemical passivation layer is formed by treating a passivation solution containing phytic acid, ammonium metavanadate and sodium tungstate; the functionalized organic-inorganic hybrid compact barrier layer is constructed by a silane mixed solution containing 3-mercaptopropyltriethoxysilane, a reaction type ultraviolet light absorber Si-BP, a reaction type hindered amine light stabilizer Si-HALS and tetraethyl orthosilicate through a sol-gel process. Through the design of a multi-layer composite system, the aging resistance of the bronze powder is improved, and meanwhile, the optical decoration performance can be reserved to the maximum extent, so that the dual strict requirements of high-end outdoor applications such as automobile coatings on durability and visual texture can be met.

The invention discloses 1K varnish as well as a preparation method and a spraying method thereof, relates to the technical field of automobile coating varnish, and solves the problems that the existing 1K varnish is difficult to be matched with a water-based colored paint system and is poor in performance. Comprising acrylic polyol, a thermosetting hydroxylated acrylic copolymer solution, thermosetting hydroxylated acrylic resin, polycarbonate diol, amino resin, blocked isocyanate resin, a leveling agent, a catalyst, an aging aid, a wetting dispersant and a solvent. The amino resin comprises butylated amino resin and a trifunctional melamine cross-linking agent; bYK306 and BYK358N are used as the flatting agents; the catalyst comprises an acid catalyst and a metal catalyst; the aging auxiliary agent comprises an ultraviolet light absorber 80 and a light stabilizer uv-93; the wetting dispersant is BYK-161; the solvent is prepared from butyl acetate, DBE, ethyl ethoxypropionate, ethylene glycol butyl ether acetate and n-butyl alcohol. The method is suitable for being matched with a water-based production line and is wide in applicability.

The invention discloses a color structural color film with a cooling characteristic. The thin film comprises a plurality of cascaded F-P cavities which are symmetrically arranged, and the specific structure is as follows: (MD) nM (DM) n. Wherein M represents a metal layer, D represents a dielectric layer, and MD and DM represent F-P cavities formed by the metal layer and the dielectric layer. The film system structure adopts an (MD) nM (DM) n (metal layer-dielectric layer-to-metal layer-to-dielectric layer-to-metal layer) symmetrical structure, and the structure is formed by cascading a plurality of F-P cavities. Each F-P cavity is composed of two metal reflectors and a medium layer in the middle, and regulation and control of interference light based on the Fabry-Perot cavity are achieved. The metal material shows high reflection characteristics in visible light and near-infrared bands, can effectively reflect most sunlight, is very useful for reducing heat absorption and improving energy efficiency, and can reduce dependence on an air conditioner and save energy especially in building and automobile coating.

The invention provides an automobile coating query method, which comprises the following steps: acquiring a full-surface image of a to-be-queried automobile, and determining the color complexity of the to-be-queried automobile based on the full-surface image; based on the color complexity of the to-be-queried automobile, matching a target feature extraction model corresponding to the color complexity in a model library; performing feature extraction on the full-surface image through a target feature extraction model to obtain appearance color features of the to-be-queried automobile; and querying paint data of the to-be-queried automobile in a paint database according to the appearance color characteristics. By introducing a color complexity evaluation mechanism, intelligent analysis of the full-surface image of the automobile is realized, and the most suitable feature extraction model is dynamically selected according to the analysis result, so that the color recognition accuracy is improved, the waste of computing resources is effectively reduced, the paint query time is greatly shortened, and the paint query efficiency is improved. And the overall automobile paint query efficiency is improved.

The invention discloses a functional radiation refrigeration coating and a preparation method thereof, and aims to overcome the defects that after a water-based coating is formed, the stability is low under ultraviolet irradiation, the adaptability to a humid environment is limited, and the radiation refrigeration performance is low. The preparation method comprises the following steps that firstly, silane modified zinc oxide dispersion liquid is prepared; mixing the silane modified zinc oxide dispersion liquid with a beta-cyclodextrin solution, and performing ultrasonic uniform dispersion; and then adding the uniform dispersion liquid into the aqueous polyurethane dispersion liquid, continuing to add the poly (N-isopropylacrylamide) dispersion liquid and the thickening agent, and fully stirring. And finally, uniformly coating a substrate with the modified waterborne polyurethane dispersion liquid, and carrying out heating treatment to prepare the multifunctional radiation refrigeration coating. The waterborne polyurethane material obtained by the preparation method can be widely applied to the fields of automobile coatings, energy-saving coatings and the like.

The utility model discloses a premixing device for automobile coating production, which belongs to the field of coating production and comprises a premixing tank provided with a premixing stirrer, the top of the premixing tank is respectively connected with a premixing pigment feeding pipe and a premixing filler feeding pipe, and the bottom of the premixing tank is connected with a premixing material discharging pipe. The side parts of the premixing tank are respectively connected with a premixing resin feeding pipe and a premixing solvent feeding pipe, the premixing pigment feeding pipe is connected with the first tubular screw conveyer, the premixing filler feeding pipe is connected with the second tubular screw conveyer, the top of the premixing tank is also connected with an air outlet pipe, and the air outlet pipe is connected with a vacuum pump. The premix produced by the utility model is good in uniformity.

This utility model relates to the field of automotive painting auxiliary equipment technology, specifically an auxiliary trolley for installing an electrophoresis chamber for automotive pre-painting. It includes a power mechanism, a main frame of the trolley, kick plates, railings, limiting grooves, a railing door, a trolley positioning and locking mechanism, a patterned steel plate, and a lifting mechanism. The power mechanism is located on both sides of the main frame of the trolley. The railings are fixed along the four perimeters of the main frame, and the kick plates are fixed around the perimeter of the railings. A railing door is located on one side of the railing above one set of power mechanisms. Four trolley positioning and locking mechanisms are respectively located on the main frame of the trolley. Each railing corresponding to a positioning and locking mechanism has a limiting groove. The patterned steel plate is fixedly laid on the upper surface of the main frame of the trolley. The lifting mechanism is located inside the installation auxiliary trolley. This utility model allows for rapid movement and changes in the construction area, greatly shortening the work surface transfer time and improving installation efficiency. It is faster and more labor-saving than manual handling.

1. Name of the product of this design: Automobile paint packaging can. 2. Purpose of this design product: used to hold automotive paint. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention discloses an automobile ornament softwood surface coating, a preparation method and application, and relates to the technical field of automobile coatings, the automobile ornament softwood surface coating comprises the following specific components: a primer, a brush-off layer, a seal paint and a finish paint. Aiming at the structural defects and practical application requirements of the cork material, a multifunctional synergistic system of primer, brush-off layer, seal paint and finish paint is constructed; the nano flake mica and the nano montmorillonite form a labyrinth type water-blocking structure in the primer, the hyperbranched polyester and the nano cellulose construct a stable color wiping and developing system, and the organic silicon sealing layer is compounded with the hollow microbeads and the nano zinc oxide to realize light-weight heat insulation protection. And nano aluminum oxide and fluorine modified wax powder in the finish paint jointly enhance the wear resistance and scratch resistance of the surface, so that the overall weather resistance, adhesive force, damp heat resistance, aging resistance and mechanical stability of the cork are effectively improved on the premise of not sacrificing the natural touch of the cork. And a complete set of technical support and an industrialization foundation are provided for large-scale application of the cork material in automobile high-end ornaments.

The invention provides hydraulic coating equipment which comprises an automatic feeding device, a pressure supplying device and a skin constant-temperature and constant-pressure liquid pool, the automatic feeding device is used for taking and placing automobile coating products, and the pressure supplying device is used for pressing the automobile coating products in the skin constant-temperature and constant-pressure liquid pool. And the constant-temperature and constant-pressure liquid pool of the skin is used for providing constant temperature and pressure for the automobile coating product. Due to the fact that the automobile coated product is coated in the constant-temperature and constant-pressure liquid pool of the skin, the automobile coated product can be evenly heated through the constant-temperature characteristic of the liquid pool, and the bonding force of glue inside the automobile coated product can be improved. And meanwhile, the flexibility of the liquid pool can adapt to automobile coating products in various shapes, and the adaptability is wide.

The utility model provides a paint spraying system, and relates to the technical field of automobile coating. The paint spraying system comprises a static pressure chamber, a flow equalizing part, a paint spraying chamber and a processing device, the paint spraying chamber communicates with the static pressure chamber, an air pipe communicating with the static pressure chamber is arranged on the static pressure chamber, the flow equalizing part is used for equalizing air fed into the static pressure chamber, a plurality of filtering assemblies are arranged in the paint spraying chamber, and each filtering assembly comprises a box body and a plurality of filtering plates; the filter plates are sequentially connected end to end and are all arranged in the box body, an air inlet space used for receiving air with paint mist in the paint spraying chamber is formed between every two adjacent filter plates, the filter plates are used for filtering the air with the paint mist fed into the air inlet space, and the processing device is used for purifying the air filtered by the filter plates. According to the paint spraying system, the overall occupied space is reduced, and the application range of the paint spraying system is widened.

The invention discloses an automobile coating aging fine granularity calculation and fine granularity three-dimensional characterization method based on an Arrhenius formula. The method comprises the following steps: drawing a three-dimensional geometric model of an automobile; the method comprises the following steps: importing material characteristics of an automotive coating of an automobile into thermal analysis software, setting simulation condition parameters and selecting a basic solver; performing gridding division on the three-dimensional geometric model by utilizing gridding division software, and then completing simulation modeling; establishing an aging model of the vehicle coating based on an Arrhenius formula; sorting the temperature values and the received irradiation doses according to different moments, substituting the sorted temperature values and the received irradiation doses into an aging model, and calculating an aging coefficient value of the vehicle coating within cumulative time; displaying the aging coefficient values of all the test points on the vehicle coating as point cloud values to generate an aging coefficient distribution diagram; and based on the aging coefficient distribution diagram, in combination with actual measurement data of an outdoor exposure test, calculating a fitting relationship between the aging coefficient of the vehicle coating and the chromatic aberration value and a fitting relationship between the aging coefficient of the vehicle coating and the glossiness. The invention provides a quicker and more accurate evaluation means for material aging.

The invention relates to the technical field of automobile coating detection, and discloses a viscosity detection device and method applied to automobile interior trim part coating production, the viscosity detection device applied to automobile interior trim part coating production comprises a base, a viscometer mounted on the base, and a fixing frame fixedly mounted on the base, a hopper is arranged at the upper end of the fixing frame, a limiting barrel is axially arranged in the hopper, a flow guide rod is movably sleeved with the limiting barrel, a buoyancy barrel is fixedly connected to the lower end of the flow guide rod, and a plurality of slow flow layering pieces and a directional flow guide piece are arranged on the inclined face of the buoyancy barrel. The buoyancy cylinder is matched with the slow flow layering part, on one hand, the flow velocity of the coating can be reduced, and the coating is prevented from entraining air to enter the detection cup due to too high flow velocity, and on the other hand, the slow flow layering part enables the coating to form differentiated flow, generate shearing force and turbulent flow, extrude and promote bubbles to be separated upwards, so that original bubbles in the coating are discharged. The viscosity detection accuracy of the coating is improved.

The invention belongs to the technical field of automobile coatings, and discloses a reflective heat-insulating coating as well as a preparation method and application thereof. The reflective heat-insulation coating provided by the invention comprises modified acrylic resin, reflective heat-insulation filler and an ultraviolet light absorber according to a specific mass ratio, and optional auxiliaries such as pigment and a defoaming agent. The modified acrylic resin can form a strong combination effect with hollow glass beads and titanium dioxide in the reflective heat insulation filler through multiple modes such as non-covalent combination, space winding and physical barrier, and has excellent compatibility with other components in the coating; according to the present invention, the compactness of the film layer obtained after the reflective thermal insulation coating film forming and the adhesion with the cold-rolled steel sheet surface are effectively improved, and the film layer has advantages of excellent reflective thermal insulation effect, excellent durability and excellent salt spray resistance, can well meet the requirements of automobiles in the long-term use process, and has excellent application prospects.

The invention belongs to the technical field of automobile coatings, and particularly relates to a wet-on-wet water-based automobile intermediate coating based on interface self-strengthening and multi-network cooperation as well as a preparation method and application of the wet-on-wet water-based automobile intermediate coating. The water-based paint is composed of the following components: a water-based main resin system, amino resin, an aqueous solution of ammonium zirconium carbonate, a polyethylene glycol-block-polycaprolactone-urea-based copolymer, a flash-dry wax emulsion, a volatile pH regulator, a solvent, an auxiliary agent, a water-based color paste and water. According to the intermediate coating disclosed by the invention, the temperature-sensitive characteristic of ammonium zirconium carbonate is utilized, an ionic cross-linked network is quickly formed during flash drying, the wet film strength is instantly improved, and the problems of bottom biting, color bleeding and the like are fundamentally prevented. Through the chemical crosslinking of the amino resin and the dynamic hydrogen bond network cooperation of the temperature-sensitive hydrogen bond enhancer, the paint film has high hardness, chemical resistance, excellent flexibility and excellent stone impact resistance at the same time. The flash-dry wax emulsion forms a net on the surface of a paint film, so that the scratch resistance is improved; and during baking, melting and interpenetrating with the upper and lower coatings to form a reinforced interface to lock the interlayer adhesive force.

The utility model discloses an automobile coating grinding device which comprises a support, the top end of the support is rotationally connected with a grinding cylinder, a plurality of teeth are evenly arranged on the outer wall of the grinding cylinder along the circumference, the side wall of the support is fixedly connected with a connecting plate, and the bottom end of the connecting plate is fixedly connected with a first motor. A first motor, a gear, a grinding cylinder, a rotating shaft, grinding blades and a second motor are arranged, the second motor drives the rotating shaft to rotate in the forward direction and drives the grinding blades to grind paint, the first motor drives the gear to rotate, and the gear is meshed with teeth to drive the grinding cylinder to rotate in the reverse direction; the stirring blocks of the grinding cylinder are matched with the grinding blades to grind the coating in all directions, the grinding efficiency is improved, the sealing cover, the handle, the threaded connecting ring and the threaded wall are arranged, the rotating handle adjusts the sealing cover to rotate, the sealing cover is separated from the grinding cylinder to drive the rotating shaft and the grinding blades connected with the sealing cover to be separated from the grinding cylinder together, and the cleaning efficiency is improved.

The present invention relates to the technical field of automotive paint testing, and specifically to a wear resistance tester and testing method for automotive paint, including a testing platform, a testing mechanism, and a locking unit. By increasing the number of testing stations and setting multiple different comparison groups, the present invention simulates the wear conditions of automotive paint in real situations with reference to different grinding head materials and different applied forces of the grinding head, improving the authenticity of test results. Moreover, by simultaneously testing and comparing multiple stations, the testing efficiency is improved, eliminating the cumbersome processes of repeatedly replacing grinding heads, applying different downward pressures, and conducting multiple repeated tests. Secondly, according to testing requirements, multiple stations can be set to conduct tests simultaneously, and all stations can be locked simultaneously through the locking unit, improving the testing efficiency and the convenience of the testing process.

The invention discloses a wastewater pretreatment system and a treatment method for automobile coating electrophoresis, and relates to the technical field of wastewater treatment.The wastewater is fed into a sewage pool, then a coagulant is added into the sewage pool, floccules in the wastewater are precipitated, and after the wastewater without the floccules flows out, the coagulant is added into the sewage pool; the motor is started to enable the sewage pool not to be layered at the moment, then the wastewater and the coagulant can be added into the sewage pool again, the wastewater is flocculated again, at the moment, floccules are accumulated and increased under multiple times of precipitation due to layering of the separator, the water outlet is formed in the sewage pool, and the wastewater containing the floccules is discharged. At the moment, because the content of floccules in the wastewater is high, the floccules can be directly collected, the situation that the filter screen is blocked by excessive floccules is avoided, the wastewater flows out more quickly, the situation that a large amount of floccules are left in the sewage pool due to small water flow is avoided, and the wastewater treatment efficiency of the sewage pool is further improved.

The invention relates to the technical field of automobile coatings, in particular to a primer for a nylon and polyphenyl ether composite material and a preparation method of the primer. The primer comprises the following components in parts by weight: 30-40 parts of hydroxy acrylic resin, 1-5 parts of amorphous polyester resin, 1-5 parts of a dispersing agent, 0-1 part of an anti-settling aid, 0-1 part of a flatting agent, 0-1 part of carbon black, 5-20 parts of titanium dioxide, 5-10 parts of filler and 20-40 parts of a solvent. Compared with the prior art, through the synergistic effect of the hydroxy acrylic resin and the amorphous polyester resin, the adhesive force of the primer to a nylon and polyphenyl ether composite material base material is remarkably improved, and particularly, the high-pressure water washing resistance is greatly improved; the key technical problem that the adhesive force of the coated composite material does not reach the standard is effectively solved.

The present application relates to the technical field of automobile paint testing, in particular to a kind of automobile paint wash resistance tester and method, including test table, clamping part and testing mechanism.The present application is installed with flushing assembly and scrubbing assembly by plug-in installation mode, for simulating the real use situation of automobile coating, the angle of flushing and scrubbing is adjusted by angle adjusting part, the height during testing is adjusted by distance adjusting part, and multiple control groups are set at the same time for comparison test, and different angle flushing and scrubbing and different height flushing situation are simulated, to ensure the reliability of test result data, a variety of different situations are tested at one time by multiple quick-release installation and control test process, and the convenience of test process is improved.

Methods and systems are disclosed herein for modifying one or more color changing exterior surfaces of a vehicle in response to identified safety events. Specifically, a safety event is identified in a surrounding environment of a vehicle that comprises one or more color-changing exterior surfaces. In response to the identifying of the safety event, a color scheme is selected for the one or more color-changing exterior surfaces of the vehicle based on the type or safety event and the appearance of the surrounding environment. One or more color changing exterior surfaces of the vehicle are modified to match the selected color scheme.

This invention discloses a high-solids-content silicon-containing multi-arm star-shaped hydroxyl polyester for antifouling automotive coatings and its preparation method. The preparation method includes the following steps: mixing 1,3-dihydroxymethylurea, polyol, and caprolactone, adding an acid catalyst for reaction, and after the caprolactone has completely reacted, adding a single-ended epoxy-based polysiloxane and a cationic ring-opening catalyst dropwise. After the addition is complete, the reaction continues until the epoxy value decreases to below 1% of the initial value. Then, distilled water is added to decompose the cationic ring-opening catalyst. The mixture is then distilled under high vacuum conditions and cooled before being discharged to obtain the high-solids-content silicon-containing multi-arm star-shaped hydroxyl polyester. The high-solids-content silicon-containing multi-arm star-shaped hydroxyl polyester of this invention has advantages such as long activation period, low application viscosity, high application solids content, good chemical resistance of the coating film, fluorine-free properties, and good stain resistance when applied to polyurethane coatings.

The invention provides an automobile coating electrophoresis overturning clamp and a using method, the automobile coating electrophoresis overturning clamp comprises a regulation and control unit and mounting frame shells, three mounting frame shells distributed up and down are arranged on one side of a fixed frame shell, the mounting frame shell located in the center is connected with one side of the fixed frame shell, and the two mounting frame shells located on the upper side and the lower side are both in transmission connection with a distance control assembly; the regulation and control unit is arranged in an inner cavity of the fixed frame shell. Through the arrangement of the regulation and control unit, the distance between every two adjacent mounting frame shells can be adjusted, so that the distance pressed by the corresponding clamping part can be adjusted, the clamping part can be vertically adjusted, the clamping part can be transversely adjusted through the translation assembly, the position adjustment range of the clamping part is large, and the clamping part can be conveniently adjusted. And for automobile parts with large sizes or different shapes, stable clamping is facilitated, the automobile coating quality is improved, and the application range of the clamp is expanded.