49 results about "Coil coating" patented technology

The application discloses a large-particle foreign matter detecting and removing device for polyester paint for household appliance coil coating, belongs to the technical field of detecting and removing devices, and through the setting of a receiving bin, large-particle foreign matter powder left after screening can be taken, a grinding disc of a grinding assembly is driven by a driving mechanism to realize grinding work on the large-particle powder, the grinding disc and the grinding seat can be used to realize the adjustment of the spacing between the grinding disc and the grinding seat under the action of a connecting mechanism and a guide assembly, so that the large-particle powder can be ground to a qualified size, and through the setting of the function in combination with active discharging work, the grinding work on the large-particle powder can be realized in the screening process, the process of taking out the screened large-particle powder, the process of transferring the large-particle powder to the grinding device for secondary processing and the time required for secondary processing and grinding can be directly saved, and the efficiency is effectively improved.

The application discloses a kind of earphone flat diaphragm coating structures, including nano diaphragm and the coil coating being arranged on the side of the nano diaphragm, the coil coating includes base layer, first coil, second coil and protective coating, the first coil and second coil are respectively connected with the positive and negative poles of external power supply, the protective coating is set to the side of the coil coating away from the nano diaphragm, the base layer is set to the side of the coil coating close to the nano diaphragm, and the base layer is photoresist coating;The application is through the side of nano diaphragm and is set photoresist coating, and the printing area of coil coating is left on the surface of base layer after development by the selective exposure of special mask to resist layer, strengthens the processing weak area of nano diaphragm, improves the service life of nano diaphragm and reduces the damage rate of nano diaphragm in production process.

The invention relates to a method for managing the gloss of an organic coating formed on a moving strip on a coil coating production line comprising, in order: a coating applicator, a heating device comprising a heating module, an ultraviolet curing device and an electron beam curing device, the method comprises correcting the deviation of the measured glossiness G beyond a set glossiness range Rs, the correction comprising: a sub-step of calculating a correction value CT to be applied to the temperature of the wet film taking into account Gs and the measured glossiness G in at least one width portion upstream of the ultraviolet curing device using a closed-loop controller; and a sub-step of adjusting the setting of the coil coating production line in consideration of the calculated correction value CT.

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, comprising a paint applicator, a heating device with a heating module, an ultraviolet curing device, and an electron beam curing device, which are sequentially moved along a path P of the moving strip, wherein the method controls the gloss range R s This includes correcting for deviations in the measured gloss G that exceed a certain value, and this correction step is performed using formula T c =T+K(GG s ) According to the corrected temperature T that the wet film reaches in at least the width portion upstream of the UV curing device c A substep to calculate the calculated corrected temperature T c The present invention relates to a method that includes a substep of adjusting the coil coating line settings with consideration to the following:

The invention provides a preparation method of an acrylic emulsion. Raw materials for preparing the acrylic emulsion comprise an acrylate monomer, a functional monomer, a crosslinking monomer, an emulsifier and a solvent, the functional monomer comprises a hydroxyl monomer and an amido monomer, and the mass ratio of the hydroxyl monomer to the amido monomer is (2-6): 1; the preparation method of the acrylic emulsion comprises the following steps: S1, mixing a part of acrylate monomers and a part of functional monomers to prepare a core layer pre-emulsion; then mixing a part of the emulsifier, a part of the solvent, a part of the core layer pre-emulsion and the initiator solution at the temperature of 80-85 DEG C to prepare a seed emulsion; then, under the condition that the temperature is 82 to 85 DEG C, dropwise adding the residual core layer pre-emulsion into the seed emulsion to prepare a core layer polymer emulsion; s2, mixing the residual acrylate monomer, the residual functional monomer and the crosslinking monomer to prepare a shell layer pre-emulsion; under the condition that the temperature is 82-85 DEG C, the shell layer pre-emulsion is dropwise added into the core layer polymer emulsion, and the polymer emulsion is prepared. A paint film formed by the acrylic emulsion has relatively good hardness, adhesive force, impact resistance, MEK wiping resistance and salt fog resistance, and after the paint film is boiled in boiling water for 1 hour, the paint film still has good impact resistance and MEK wiping resistance.

The invention relates to a method for surface coating a plane metal substrate, the method comprising the steps of: providing a coiled plane metal substrate; unwinding the coiled plane metal substrate; applying one or more adhesive layers onto a top surface of the plane metal substrate; laminating a layered laminate comprising a first PVC layer and a second PVC layer onto the top surface of the plane metal substrate, the first PVC layer contacting the one or more adhesive layers, wherein the first PVC layer has been thermally fused with the second PVC layer, and wherein the second PVC layer comprises antimicrobial particles, thereby forming a laminated assembly with an antimicrobial PVC top layer.

The invention provides a preparation method of a high-performance easy-to-clean coating suitable for various coil steel coating systems. The easy-to-clean coating is prepared from the following raw materials in parts by mass: 20 to 60 parts of water-oil universal solvent A, 0.2 to 10 parts of silane, 20 to 60 parts of deionized water, 1 to 15 parts of silica gel and 1 to 10 parts of water-oil universal solvent B. According to the easy-to-clean material prepared by the preparation method disclosed by the invention, the excellent easy-to-clean effect of the easy-to-clean material can be ensured, the performances such as water resistance, mechanical properties, aging resistance and multi-applicability of an easy-to-clean coating are greatly improved, the application range of the easy-to-clean coating is greatly expanded, various system coatings can have a cleaning effect, and the application range of the easy-to-clean coating is widened. And the method has a wide application scene.

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, comprising, in sequence, a paint applicator, a heating device with a heating module, an ultraviolet curing device, and an electron beam curing device, wherein the method controls the gloss within a set gloss range R s This includes correcting for deviations in the measured gloss G that exceed a certain value, and the correction is performed using a closed-loop controller in at least the width portion upstream of the UV curing device, G s And taking into account the measured gloss G, a correction C is applied to the temperature of the wet film. T Substeps to calculate the calculated correction C T The present invention relates to a method that includes a substep of adjusting the coil coating line settings with consideration to the following:

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, which sequentially comprises a paint applicator, a cooling device with a cooling module, an ultraviolet curing device, and an electron beam curing device, wherein the method controls the gloss within a set gloss range R s This includes correcting for deviations in the measured gloss G that exceed a certain value, and the correction is performed using a closed-loop controller in at least one width portion upstream of the UV curing device, G s And taking into account the measured gloss G, a correction C is applied to the temperature of the wet film. T A sub-step to calculate the calculated correction C T The present invention relates to a method including a sub-step of adjusting the coil coating line settings with consideration to the following:

The invention discloses low-temperature-resistant high-performance epoxy modified polyester back paint based on hyperbranched epoxy resin and a preparation method of the low-temperature-resistant high-performance epoxy modified polyester back paint. The epoxy modified polyester back paint comprises the following components: polyester polyurethane resin, hyperbranched epoxy resin, an amino resin curing agent, a pigment filler, wax powder, an auxiliary agent and a mixed solvent, the polyester polyurethane resin is prepared by an addition polymerization reaction of polyester polyol resin and a diisocyanate compound; the hyperbranched epoxy resin is prepared through a two-stage step-by-step proton transfer reaction of a polyol compound and an epoxy compound, and the molecular weight distribution index is 1.5-2.5. The back paint provided by the invention has excellent low temperature resistance, and is especially suitable for application of coiled material coatings in the field of building materials. Compared with the prior art, the back paint provided by the invention can significantly improve the punch forming processing performance of the pre-coated color steel plate in a low-temperature environment, and solves the problems of insufficient flexibility and reduced adhesive force of the existing color steel plate coating under a low-temperature condition.

The present invention relates to the use of an electron beam (EB) curable composition for the production of a coil coating cured with EB wherein the composition comprises a cationically curable resin comprising a1) an epoxide, a2) a polyoxetane compound having at least two oxetane groups and a3) a cationic initiator, wherein the weight ratio between the epoxide a1) and the polyoxetane a2) is in the range of 0.3 to 5.

The invention discloses a vertical steel coil coating device, and belongs to the technical field of steel coil coating, the vertical steel coil coating device comprises a bottom frame, and further comprises a storage chamber, a rotating pipe, a guide mechanism, a guide frame and a conveying mechanism, the storage chamber is fixedly connected to the top end of the bottom frame, the top end of the storage chamber is communicated with a coating chamber capable of coating a steel belt, and a storage opening is formed in one side of the storage chamber; the number of the rotating pipes is two, the two rotating pipes are both rotationally connected into the storage chamber, the two rotating pipes are each provided with a plurality of tensioning rods for tensioning the steel coil through a supporting mechanism, the supporting mechanism is used for supporting the multiple adjacent tensioning rods to be unfolded or folded, and the guiding mechanism is arranged in the storage chamber and the coating chamber. The guide frame is fixedly connected to one side of the bottom frame, the guide frame is located at the bottom of the storage opening, and the conveying mechanism is arranged on the guide frame. According to the vertical steel coil coating device, the initial length and the ending length of a coating material are shortened, and the coating material is saved.

The uniform coating equipment comprises a coating box, a vacuum pump is fixedly arranged on the upper surface of the coating box, the output end of the vacuum pump is fixedly communicated with a vacuum pipe, the bottom end of the vacuum pipe is communicated with the upper surface of the coating box, and the bottom end of the vacuum pipe is communicated with the lower surface of the coating box. Symmetrical first bearings are fixedly embedded in the inner wall of the coating box, the inner rings of the two first bearings are jointly and fixedly connected with an unwinding roller, and a second bearing is fixedly embedded in the inner wall of the coating box. According to the device, a to-be-processed coiled material can be placed through cooperation of a first bearing and an unwinding roller, the coiled material subjected to film coating can be stored through cooperation of a second bearing and a winding roller, a vacuum space can be formed in a film coating box through cooperation of a vacuum pump and a vacuum pipe, and through cooperation of a driving motor, a third bearing and a threaded rod, the coiled material can be subjected to film coating; and the height of the adjusting table can be adjusted, so that the distance between the target body and the to-be-processed coiled material is adjusted, and the film coating effect of the coiled material is stabilized.

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, which sequentially comprises a paint applicator, a heating device with a heating module, an ultraviolet curing device, and an electron beam curing device, wherein the method controls the set gloss range R s This includes correcting for deviations in the measured gloss G that exceed a certain value, and the correction is performed using a closed-loop controller, G s And taking into account the measured gloss G, a correction C is applied to the output of the heating module. P A sub-step to calculate the calculated correction C P The present invention relates to a method including a sub-step of adjusting the coil coating line settings with consideration to the following:

A steel coil coating system includes: a robot with a robotic arm that can be equipped with a coating tool and a suction cup tool; a coating preparation device for preparing coating, wherein the robot controls the coating tool to pick up the coating in the coating preparation device; a first coating platform on which the robot, equipped with the coating tool, coats the steel coil, the coil's axis being vertically oriented; and a second coating platform on which the robot, equipped with the coating tool, coats a protective plate, and the robot, equipped with a suction cup tool, adsorbs the protective plate and places it on the upper surface of the steel coil; wherein the coating preparation device, the first coating platform, and the second coating platform are arranged around the robot. The system allows the robot to control the coating tool to coat the steel coil on the first coating platform and the robot to control the coating tool to coat the protective plate on the second coating platform, reducing the dangers and labor burden of manual operation.

The invention discloses a pre-coating coiled material coating for bonding a TPO (thermoplastic polyolefin) waterproof coiled material, a preparation method and a use method. The precoated coil coating comprises the following components in parts by weight: 20-35 parts of linear high molecular weight low Tg polyester resin A, 4-10 parts of linear high molecular weight medium Tg polyester resin B, 2-6 parts of low molecular weight high activity epoxy resin, 5-10 parts of chlorinated polypropylene, 6-10 parts of a mixed curing agent, 5-15 parts of pigment filler, 1-2 parts of an auxiliary agent and 25-40 parts of a mixed solvent. The invention also discloses a preparation method of the pre-coated coiled material coating for bonding the TPO waterproof coiled material. A single coating layer formed by the pre-coating coiled material coating prepared by the invention has good adhesive force with a metal base material, and can be firmly bonded with a TPO membrane material, so that the target of integrating a TPO waterproof material and a steel structure roof main body into a whole is really achieved, and a complete waterproof sealing system is formed.

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, comprising, in sequence, a paint applicator, a cooling device with a cooling module, an ultraviolet curing device, and an electron beam curing device, wherein the method sets the gloss range R s The correction involves correcting the deviation of the measured gloss G that exceeds a certain value, and the correction is given by formula T c =T+K(GG s ) in accordance with the corrected temperature T to be reached by the wet film in at least one width portion downstream of the cooling module and upstream of the UV curing device. c The calculated corrected temperature T c This relates to a method that includes adjusting the coil coating line settings, taking this into consideration.

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, the method comprising: 1) a set gloss value G s , setting gloss range R s , and a proportionality constant K for a predefined linear mathematical relationship between the temperature and gloss of the wet film before UV curing; 2) collecting measurements of the temperature T of the wet film and collecting measurements of the gloss G of the wet film at least in a width portion of the moving strip upstream of the UV curing device; 3) R s , which includes a step of correcting the deviation of the measured gloss G beyond a corrected temperature T to be reached by the wet film in the width portion upstream of the UV curing device. c The equation: T c =T+K(GG s )

The present invention relates to a method for controlling the gloss of an organic coating formed on a moving strip on a coil coating line, which sequentially comprises a paint applicator, a cooling device with a cooling module, an ultraviolet curing device, and an electron beam curing device, wherein the method controls the gloss within a set gloss range R s This includes correcting for deviations in the measured gloss G that exceed a certain value, and the correction is performed using a closed-loop controller, G s And taking into account the measured gloss G, a correction C is applied to the output of the cooling module. P A sub-step to calculate the calculated correction C P The present invention relates to a method including a sub-step of adjusting the coil coating line settings with consideration to the following:

The utility model belongs to the technical field of heating coil coating, and particularly relates to a heating coil heat conduction material coating device which comprises a machining table, and an air cylinder is fixedly connected to the top of the machining table. The output end of the air cylinder is fixedly connected with a clamping plate. The inner wall of the clamping plate is fixedly connected with a connecting column; a first roller is arranged outside the connecting column in a sleeving manner; the connecting column is rotationally connected with the first roller; a material spraying pipe is fixedly connected to the top of the inner side of the processing table; the material spraying pipe is provided with multiple holes; the top of the material spraying pipe is communicated with a material injection port; a supporting plate is fixedly connected to the bottom of the inner side of the machining table. A first motor is fixedly connected to the side wall of the supporting plate. The output end of the first motor is fixedly connected with a second roller; a slot is formed in the bottom of the processing table; by additionally arranging the first roller, the heating coil can be fully coated, the situation that the whole heating coil cannot be fully coated with a heat conduction material is reduced, meanwhile, due to the design of the first roller, the heat conduction material can be fully utilized, and waste and other situations are reduced.

The invention relates to a method for surface coating a plane metal substrate, the method comprising the steps of: providing a coiled plane metal substrate; unwinding the coiled plane metal substrate; applying an adhesive layer onto a top surface of the plane metal substrate; and laminating a layered laminate comprising a PVC film and a PET film onto the top surface of the plane metal substrate, the PVC film contacting the adhesive layer, thereby forming a laminated assembly, wherein the plane metal substrate comprises austenitic stainless steel.

This invention provides a water-based printing coating for aluminum coils and its preparation method, belonging to the field of coating technology. The invention introduces siloxane active groups into the chain ends of a water-based polyurethane prepolymer with isocyanate-terminated groups via an aminosilane coupling agent. This is combined with the chelation control of titanium alkoxides by acetylacetone and the formation of a titanium-silicon composite sol through acidic hydrolysis and condensation of tetraalkoxysilane and epoxysilane coupling agents. Finally, this sol is cured and mixed with a silane-terminated water-based polyurethane emulsion. This allows the coating to construct a uniform organic-inorganic hybrid network in situ during curing and film formation, and to form a more stable chemical anchoring and dense shielding structure at the aluminum substrate interface. Thus, while maintaining the workability of the water-based system, it significantly improves the adhesion, hardness, and corrosion resistance of the aluminum coil coating.

A coating composition that includes components containing a urethane (meth)acrylate oligomer and a monomeric (meth)acrylate ester. The components can be cured when exposed to actinic radiation and / or ionizing radiation. The coating composition can have a flow time of from 40 to 180 seconds determined using a 4 mm Din Flow Cup determined according to DIN 53211 (1987) at 25 °C, or a viscosity of from 100 to 1,000 cSt determined using a Brookfield RV viscometer using spindle no. 6 at 10 rpm and 25 °C according to ASTM : D 2196 – 99. The coating composition can be used in coil coating applications resulting in a coated coil.

The invention relates to a method for managing the gloss of an organic coating formed on a moving strip on a coil coating production line comprising, in order: a coating applicator, a cooling device comprising a cooling module, an ultraviolet curing device and an electron beam curing device, the method comprises correcting the deviation of the measured glossiness G beyond a set glossiness range Rs, the correction comprising: a sub-step of calculating a correction value CT to be applied to the temperature of the wet film taking into account Gs and the measured glossiness G in at least one width portion upstream of the ultraviolet curing device using a closed-loop controller; and a sub-step of adjusting the setting of the coil coating production line in consideration of the calculated correction value CT.

The utility model belongs to the technical field of aluminum coil processing, and particularly relates to an aluminum coil coating film coating device which comprises a machine shell, a first coating roller, a second coating roller, a first coating roller and a second coating roller, the first cleaning mechanism is arranged close to the first coating roller; the second cleaning mechanism is arranged close to the second coating roller, is the same as the first cleaning mechanism in structure and comprises a positioning frame, a third motor, a transmission lead screw and a cleaning plate; a sliding groove is formed in the side wall of the positioning frame, and a sliding base is arranged in the sliding groove. A threaded rod is arranged on the sliding base, and one end of the threaded rod is rotationally connected with a first hinge base. The third motor is fixed on the positioning frame; one end of the transmission screw rod is connected with an output shaft of the third motor, and the other end is rotationally connected with the positioning frame; the cleaning plate is in threaded fit with the transmission lead screw, and a second hinge seat at the top is connected with the first hinge seat through a connecting plate. The coating roller cleaning device can clean the coating roller before and after use, prevents solidified coating from being adhered to the surface of the roller body to affect the subsequent coating effect, and has a better market application prospect.

The invention discloses a modified water-based metal printing coil coating and a preparation method and application thereof, and the modified water-based metal printing coil coating comprises the following components in parts by weight: 40-60 parts of water-based epoxy acrylic hybrid silicon modified polyurethane resin, 5-10 parts of cross-linked resin, 0.5-2.5 parts of a water-based thickening agent, 0.1-0.5 part of a water-based defoaming agent, 0.2-1 part of a water-based leveling agent, 0.2-0.6 part of a water-based base material wetting agent, 5-10 parts of a cosolvent, 5-20 parts of water and 2-5 parts of a coating neutralizer. According to the modified water-based metal printing coiled material coating, water-based epoxy acrylic acid hybrid silicon modified polyurethane resin is adopted to replace a conventional polyester resin system; the comprehensive properties such as adhesive force, weather resistance, high gloss and chemical resistance of the paint film are provided by the epoxy acrylic resin, the high flexibility and high temperature resistance of the paint film are provided by the organic silicon resin, and the excellent toughness of the paint film is provided by the polyurethane resin. And the comprehensive performance of the paint film is greatly superior to that of the polyester resin coiled material paint in the market, such as good flexibility, good gloss and general tolerance.

This invention relates to the field of coil coating technology and discloses an energy-saving coil coating equipment and its coating method. The energy-saving coil coating equipment includes a frame, with conveying components at both ends for unwinding and winding the coil body. The frame also includes a looper assembly for auxiliary conveying of the coil body and a coating assembly. This energy-saving coil coating equipment and method, through the use of the coating assembly, two sets of mounting frames and paint trays on the curved and straight frames, and a coating motor, allows two pick-up rollers to carry paint from their respective paint trays, transferring it to their respective coating rollers. This uniformly transfers the paint onto the front and back of the substrate. Rapid drying in an oven effectively reduces energy consumption, eliminates the volatilization of organic compounds, and improves production efficiency. Furthermore, the adjustment mechanism can scrape off excess paint and adjust the coating thickness, enhancing the equipment's practicality.

The present application relates to the technical field of conductive paint, in particular to a kind of two-phase conductive additive step-by-step dispersion coiled material paint and its preparation process.The present application overcomes the problem of poor conductive performance of polyester paint.The present application mixes pretreated carbon nanotube with polyol and polyacid, and uses the process of segmented temperature control to prepare conductive polyester, which promotes the additive to be more evenly embedded in the polyester molecular network;By introducing two kinds of conductive additives, carbon nanotube and nano zinc oxide, in steps, and using different pretreatment methods, xylene and deionized water are used to disperse the two kinds of conductive additives and add them in different stages, to improve the conductivity of the paint;By preparing a leveling agent with a fluorine-silicon block structure, a molecular chain conformational change occurs during the paint baking stage, which improves the conductive performance and appearance integrity of the paint.

The invention relates to a method for managing the gloss of an organic coating formed on a moving strip on a coil coating production line comprising, in order: a coating applicator, a cooling device comprising a cooling module, an ultraviolet curing device and an electron beam curing device, the method comprises the following steps: correcting the deviation of the measured glossiness G exceeding a set glossiness range Rs; the correction comprises calculating a corrected temperature Tc to be reached by the wet film in at least one width portion downstream of the cooling module and upstream of the ultraviolet curing device according to the equation Tc = T + K (G-Gs) and adjusting the setting of the web coating production line in consideration of the calculated corrected temperature Tc.

The present invention relates to a PVDF solvent dispersion composition containing polyvinylidene fluoride (PVDF), which composition is substantially free of fluorine-containing surfactants and contains a low level of dispersant. PVDF may be used to prepare tough, chemical resistant coatings, especially on metal substrates, including as coil coatings or architectural coatings. In the embodiments disclosed herein, the PVDF coating composition comprises a solvent, such as diisobutyl ketone (DIBK), which promotes the composition to have advantageous viscosity and rheology even in the absence of fluorine-containing surfactants and conventional solvents, such as isophorone.