109 results about "Electrostatic coating" patented technology

The invention provides a method for enhancing interface bonding and corrosion resistance of a basalt fiber composite material, and belongs to the field of fiber surface modification chemical methods. The method is realized through the following steps: firstly, treating basalt fibers by utilizing an organic solvent through high-temperature reflux to prepare desized basalt fibers; then, the desized basalt fibers are immersed in a dopamine solution to be subjected to auto-polymerization, and basalt fibers with a polydopamine coating are prepared; sequentially immersing the basalt fiber coated with the polydopamine into a zinc salt solution and a 2-methylimidazole solution, so as to prepare a ZIF-8 modified basalt fiber; and finally, mixing the ZIF-8 modified basalt fiber with resin through electrostatic coating, and molding by adopting a segmented hot-pressing method to obtain the basalt fiber composite material. According to the method, a composite structure formed by the synergistic effect of a dopamine self-polymerization layer and ZIF-8 is introduced into the surface of the basalt fiber, so that the interface bonding force between the fiber and resin and the corrosion resistance of the composite material are greatly enhanced.

A coating apparatus can include a spray applicator configured to discharge a coating material toward a surface of a workpiece, wherein the spray applicator includes an air shaping orifice, and wherein the spray applicator is configured to generate an electric field between the spray applicator and the workpiece, and a positioning system configured to adjust a position of the spray applicator relative to the surface of the workpiece. It can further include a control system configured to regulate operation of the spray applicator and / or the positioning system to: maintain the spray applicator within a coating distance, maintain a flow rate of shaping air through the air shaping orifice, and maintain an electrical potential of the electric field.

An electrostatic coating system including of a novel technique of height adjustment through pressure sensing and feedback mechanism in twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s). A variable height electrostatic edible coating system provides uniform and efficient coating to ensure shelf-life extension, improved nutritional value and enhanced sensory attribute.

A coating apparatus can include a spray applicator configured to discharge a coating material toward a surface of a workpiece, wherein the spray applicator includes an air shaping orifice, and wherein the spray applicator is configured to generate an electric field between the spray applicator and the workpiece, and a positioning system configured to adjust a position of the spray applicator relative to the surface of the workpiece. It can further include a control system configured to regulate operation of the spray applicator and / or the positioning system to: maintain the spray applicator within a coating distance, maintain a flow rate of shaping air through the air shaping orifice, and maintain an electrical potential of the electric field.

An electrostatic spinning system based on an enhanced electric field comprises a spray head used for spraying a polymer solution to a fiber membrane in an electrostatic coating mode; an adjustable potential difference is established between the receiving end and the spray head, so that the spray head can spray the fiber membrane borne on the receiving end in an electrostatic coating manner. At least part of the fiber membrane is maintained on the receiving end through electrostatic adsorption formed by potential difference, and an electric field amplitude modulation assembly is arranged on the periphery of the nozzle. Wherein the electric field intensity in the influence area of the electric field amplitude modulation assembly is greater than the electric field intensity outside the influence area of the electric field amplitude modulation assembly. The electric field amplitude modulation assembly is adopted by the nozzle, the electric field intensity around the nozzle can be strengthened and stabilized, electrostatic coating can be better conducted on the fiber membrane, and meanwhile an electric field can exist outside an electrostatic coating area to meet the requirement that the fiber membrane is electrostatically adsorbed to the receiving end.

The utility model relates to an electrostatic coating device, which aims to solve the technical problem that the current paint liquid drops on equipment and is difficult to clean, and comprises a spraying rack, an electrostatic spraying gun is arranged on a Y-axis driving lead screw of the spraying rack, and the electrostatic coating device further comprises a drip-proof structure; the drip-proof structure is arranged at the bottom of the electrostatic spraying gun base; the drip-proof structure comprises a transverse plate and a collecting box; the inner end of the transverse plate is fixedly arranged at the bottom of the electrostatic spraying gun base; the collecting box is arranged at the outer end of the transverse plate. The paint liquid collecting device has the advantages that paint liquid dripping from a muzzle of the electrostatic spraying gun is collected, and the dripping paint liquid cannot drip disorderly.

The objective is to provide a painting method that enables the reuse of hangers used in electrostatic painting in a short time and at low cost. [Solution] A painting method comprising: an electrostatic painting step of electrostatically painting a metal object to be painted supported by a metal hanger grounded to earth; and a laser irradiation step of, after removing the object to be painted from the hanger, burning off the paint that adhered to the contact portion of the hanger that was in contact with the object to be painted in the electrostatic painting step by irradiating it with a laser.

To provide an electrostatic coating device and an electrostatic coating method capable of expanding the adjustment width of a discharge amount of liquid and more accurately controlling a discharge mode of the liquid.SOLUTION: An electrostatic coating device 1 comprises: a syringe 10 having a storage space 11 and a nozzle 12; an opposing electrode 41 that is disposed to face the syringe 10; a voltage generator 42 that applies a voltage between the syringe 10 and the opposing electrode 41; a pressure generator 22 that applies pressure to the storage space 11; a measuring device 50 that measures a property of liquid 2 in the storage space 11; and a control device 30. The control device 30 synchronously varies a voltage applied by the voltage generator 42 and a pressure applied by the pressure generator 22 to discharge the liquid 2 from the nozzle 12, and changes the voltage value and the pressure value on the basis of a measurement value obtained by the measuring device 50.SELECTED DRAWING: Figure 2

A smart contact lens includes a contact lens, a nanostructures layer, a first sensor, a connector, and a smart module. The nanostructures layer may be anti-bacterial. The smart contact lens may be worn on an eye or may be implanted within an eye. The nanostructures layer is fabricated by depositing a colloidal dispersion onto an electrostatically-coated substrate. The colloidal dispersion is then removed and nanoholes are etched. The electrostatic coating is removed and a biocompatible material is spin-coated onto the substrate. Upon removal, a quasi-randomly distributed nanostructures layer forms.

The utility model belongs to the technical field of electrostatic coating devices, and particularly relates to an anti-rebound electrostatic coating device which comprises a base, the upper surface of the base is fixedly connected with two stand columns, the upper surfaces of the two stand columns are jointly and fixedly connected with a transverse column, a sliding groove is formed in the bottom of the transverse column, a threaded rod is rotationally connected into the sliding groove, and the threaded rod is fixedly connected with the base. And one side of the transverse column is fixedly connected with a first servo motor, an output shaft of the first servo motor is fixedly connected with one end of a threaded rod, and the threaded rod is in threaded connection with a sliding block. By arranging the second servo motor, the first rotating rod, the second rotating rod, the protective cover and the like, the second servo motor drives the first rotating rod to rotate, and the first rotating rod drives the protective cover to move on the conveying pipe through the second rotating rod, so that the receiving frame at the bottom of the protective cover is close to parts as much as possible; and the situation that the coating rebounds all around and splashes to the human body during spraying, and the health of workers is affected is avoided.

1. The name of the design product: powder electrostatic coating room. 2. The use of the design product: for electrostatic powder coating and powder collection. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

To provide an epoxy resin powder coating material that reduces fusion of the powder coating material to peripheral equipment even when applied on a heated coating target in electrostatic coating, and exhibits excellent electrostatic coating performance.SOLUTION: An epoxy resin powder coating material comprises mixed particles containing (A) an epoxy resin having a softening point or melting point of 90°C to 150°C and (B) a curing agent, wherein the surfaces of the mixed particles are coated with (C) an inorganic material surface-treated with a tackifier.SELECTED DRAWING: None

An electrostatic coating machine can include an applicator rotatably attached to a distal end of a turbine and shaft, wherein the applicator is a bell cup comprising a resin material, wherein the bell cup comprises an outer peripheral edge and a bell cup exposed surface, wherein the outer peripheral edge comprises a conductive or semi-conductive coating material, and a plurality of semi-conductive members extending through the resin material in electrical communication with a high voltage path and the outer peripheral edge.

Even if the distance between the tip of the electrostatic gun and the object being coated changes, the coating process can be safely and reliably completed without stopping the coating process. [Solution] The electrostatic painting system comprises an electrostatic gun and an electrostatic controller that controls the voltage output from the electrostatic gun. The electrostatic controller monitors the output voltage and output current of the electrostatic gun and can switch between constant voltage control, which maintains the output voltage constant, and current limiting control, which limits the output current to a range that does not exceed the current value at which sparks occur. Furthermore, if the output current exceeds a preset first current threshold while constant voltage control is being performed, the controller switches to current limiting control. If the output voltage exceeds a preset voltage threshold while current limiting control is being performed, the controller applies a pulse voltage set to a voltage with an absolute value greater than the voltage threshold. If the output current at the time of pulse voltage application is less than a second current threshold set to a value less than the first current threshold, the controller switches from current limiting control to constant voltage control.

The invention provides an electrostatic coating method, and relates to the technical field of plastic part coating. The electrostatic coating method comprises the following steps: providing a coating, a spray gun and a to-be-sprayed workpiece, and introducing the coating into the spray gun; one of the to-be-sprayed workpiece and the spray gun carries positive charges, and the other carries negative charges, so that an electrostatic field is formed between the to-be-sprayed workpiece and the spray gun, and the electrostatic field enables air outside a spray gun opening of the spray gun to generate corona discharge; the spray gun rotates to atomize the coating and spray the atomized coating to the to-be-sprayed workpiece, the coating carries charges of the same type as the spray gun due to corona discharge when passing through the spray gun opening, and the coating is deposited on the surface of the to-be-sprayed workpiece under the adsorption action of the to-be-sprayed workpiece. According to the electrostatic coating method, the transfer efficiency of the coating is remarkably improved by utilizing the electrostatic field, the waste of the coating is reduced, and the cost and the pollution to the environment are further reduced. And meanwhile, under the action of the electrostatic field, atomized paint particles can be uniformly attached to the surface of the workpiece to be sprayed, so that the coating quality is improved.

A coating method comprising: an electrostatic coating step of electrostatically coating a metal object supported by a metal hanger grounded to the ground; and a laser irradiation step of, after removing the object from the hanger, burning out, by laser irradiation, a coating material having adhered in the electrostatic coating step to a contact portion, said contact portion being the portion of the hanger that was in contact with the object in the electrostatic coating step.　

The invention relates to the technical field of coating, and discloses a motorcycle fuel tank coating process which comprises the following steps: step 1, workpiece pretreatment; step 2, spraying primer; 3, gloss oil is sprayed; step 4, spraying finish paint; step 5, finishing paint treatment; step 6, polishing treatment; by adding the gloss oil spraying process between the primer and the finish paint, the surface of the primer coating of the motorcycle fuel tank can be smoother and flatter through the leveling property of a gloss oil paint film, an excellent base layer is provided for spraying the finish paint, and it is guaranteed that the surface of a finished motorcycle fuel tank is smooth and flatter; after finishing paint spraying is completed, finishing paint coating treatment is conducted, the finishing paint can be effectively protected, the glossiness and durability of the finishing paint can be improved, the mechanical arm and the electrostatic coating machine are organically matched with manpower, the electrostatic spraying and painting efficiency is high, waste is little, and therefore energy consumption is greatly reduced, paint consumption is reduced, and the hazardous waste generation amount is reduced.

The utility model discloses an electrostatic coating machine for motor manufacturing, which comprises a working table, the top of the working table is fixedly provided with an electrostatic coating chamber, two sides of the top of the working table are both fixedly provided with vertical blocks, two conveying rollers are rotatably arranged between the two vertical blocks, the two conveying rollers are symmetrically arranged, and the vertical blocks are fixedly arranged on the working table. The top of the workbench is slidably provided with two top blocks, the two top blocks are both arranged under the conveying rollers, the tops of the two top blocks are fixedly provided with cleaning strips, and the cleaning strips are made of rubber materials; when the device is used, the rotor is fixedly installed on the rotating shaft, and the two ends of the rotating shaft are placed on the two conveying rollers, so that friction force between the rotating shaft provided with the rotor and the conveying rollers is changed, and paint on the conveying rollers is cleaned through the cleaning strips at the tops of the vertical blocks; the cleaning strip made of flexible rubber can be tightly attached to the surface of the conveying roller, and the coating just making contact with the conveying roller is cleaned in time.

A method for manufacturing an electrically conductive member, which includes: attaching a powder to a surface of a metal member by an electrostatic coating method, the powder containing a thermoplastic polyimide containing a structural unit represented by formula (1); and forming an insulating coating film by melting the attached powder by heating, in an IR spectrum of the insulating coating film, at least one of the following conditions is satisfied: a ratio I ‑1 / I 1487 of an absorption intensity I ‑1 at 1487 cm 1778 to an absorption intensity I 1487 at 1778 cm 1778 is 3.0 to 5.0; and a ratio I ‑1 / I 1232 of an absorption intensity I ‑1 at 1232 cm 1778 to an absorption intensity I 1232 at 1778 cm 1778 is 3.0 to 5.0.

The spray gun structure comprises a spray gun body, a fixed shell is fixedly connected to the outer wall of the front end of the spray gun body, a spray head assembly is fixedly connected to the inner wall of the fixed shell, and a dismounting mechanism is arranged on the outer wall of the front end of the spray head assembly. The dismounting mechanism comprises a fixing ring rigidly connected to the outer wall of the front end of the spray head assembly, a fixing pipe is rotationally connected to the outer wall of the fixing ring, and a nozzle is arranged on the outer wall of the front end of the fixing ring. The spray gun structure for electrostatic coating spraying is simple in structure and convenient to use, the nozzles and the like of the spray gun structure can be rapidly switched according to use requirements of different application scenes, and loss and the like caused by mistaken touch of operators can be effectively avoided.

This invention belongs to the field of electrostatic coating equipment, and particularly relates to a high-efficiency electrostatic coating equipment for rod-shaped workpieces. It includes a spray booth and a guide rail passing through the spray booth. Rod-shaped workpieces are suspended on the guide rail. At least one set of electrostatic spraying mechanisms is installed inside the spray booth. Each electrostatic spraying mechanism includes a liquid paint tank, a spray frame, a paint receiving frame, a paint recovery tank, and a fan. The spray frame is mounted on the liquid paint tank and has several nozzles installed inside, with the nozzles facing rearward. The paint recovery tank is located behind the paint receiving frame, and its upper end is connected to both the paint receiving frame and the fan via pipes. A spray baffle is installed inside the spray booth between the paint receiving frame and the paint recovery tank. With the cooperation of the nozzles and the spray baffle, the atomized paint is always maintained in the spraying area directly below the guide rail for the rod-shaped workpiece to pass through, increasing the contact time between the paint and the rod-shaped workpiece and thus improving the spraying quality.

The utility model discloses an anti-corrosion spraying device for an electrostatic coating anti-corrosion pipeline, which belongs to the technical field of spraying devices and comprises a support frame, conveying components are arranged at two ends of the top of the support frame, and a driving part for controlling the two conveying components to operate synchronously is mounted on one side of the support frame. A spraying assembly and a drying assembly are arranged in the supporting frame and located between the two conveying assemblies, auxiliary parts used for limiting lateral deviation of the pipeline are arranged at the front ends and the rear ends of the two conveying assemblies correspondingly, and each conveying assembly comprises two conveying rollers rotationally installed on the supporting frame. The pipeline anti-corrosion spraying device solves the problems that an existing pipeline anti-corrosion spraying device is simple in structure, the surface of a pipeline cannot be evenly sprayed conveniently, continuous spraying on the outer portion of the pipeline cannot be achieved conveniently, and the spraying efficiency is high. And the anti-corrosion spraying efficiency on the pipeline is low, and people cannot use the anti-corrosion spraying device conveniently.

The invention relates to a method for realizing a step pattern printed circuit board, which comprises the following steps of: drilling a hole on a laminated circuit board, then forming a step groove, and carrying out electroplating operation; performing electrostatic spraying of an electroplating resist on the bottom of the stepped groove to form a stepped groove area; performing pattern electroplating on a non-stepped groove area except the stepped groove area to realize pattern transfer of the non-stepped groove area; removing the electroplating resist at the bottom of the stepped groove, and performing circuit pattern etching on the stepped groove area and the non-stepped groove area; and obtaining the step pattern printed circuit board after a detection program. According to the method for realizing the stepped pattern printed circuit board, the groove bottom of the stepped groove of the multi-layer circuit board is coated with the electroplating resistance agent in an electrostatic coating mode, the stepped groove pattern is realized by using a coating process, and the electroplating resistance agent is used as a pattern transfer medium to replace a dry film to realize the pattern transfer requirement of the bottom of the stepped groove; and the step pattern design of the printed circuit board is realized.

This invention relates to a rotary electrostatic plastic-coated tube array baking and curing device. A rotating assembly is installed within a housing. The rotating assembly includes a central rotating shaft driven by a motor, with wheel disks at both ends. Multiple plastic-coated tube arrays are arranged between the two wheel disks. An electric heater is installed at the bottom of the housing, and two cross-flow fans are installed above the electric heater, spaced apart on both sides of the lower part of the rotating assembly. Air duct baffles are installed on both sides of the rotating assembly above the cross-flow fans. The electric heater and cross-flow fans on both sides of the bottom, separated by air duct baffles, allow for heating and baking of the plastic-coated tube arrays on the rotating assembly. This invention ensures uniform heating of the plastic-coated tube arrays, resulting in the plastic powder melting and adhering evenly to the tube wall. This avoids uneven plasticizing caused by uneven flow and temperature, guaranteeing the quality of the plastic coating and curing. It is suitable for large-scale production of plastic coating and curing on the surfaces of bare tubes or finned tubes, improving production efficiency.

[Solution] An inner cylinder surface 7A of a shaping air ring 7 is formed with a uniform inner diameter dimension. A first shaping air jet portion 8 is formed as an annular gap, and a gap dimension a thereof is set at 0.1-1.0 mm. A front end portion 7E of the shaping air ring 7 is disposed at a position 0.1-10.0 nm to the rear of a discharge edge 6D of a rotary atomization head 6. A radial width dimension c of the front end portion 7E is set at 2 mm or less. A front outer cylinder surface 7B of the shaping air ring 7 is such that a taper angle β opening out toward the rear is set at 25° or less in relation to an axis 0-0.

To prevent dryness of a nozzle to prevent clogging of the nozzle, caused by solidification of the liquid in the nozzle, preferably.SOLUTION: An electrostatic coating applicator 1 includes: a syringe 11 serving as a liquid discharge part having a nozzle 12 for discharging an ink 2 at a tip; and an electrostatic force generating circuit 25 which generates electrostatic force for retaining a humectant 3 for preventing dryness near the nozzle 12. The electrostatic force generating circuit 25 controls a position where the humectant 3 is present by controlling whether or not the electrostatic force is generated and a magnitude of the electrostatic force.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of coating machines, and discloses an electrostatic coating machine which comprises an equipment frame, a spraying box is arranged at the top of one side of the equipment frame, and an equipment motor, an equipment lead screw, a movable plate, a hydraulic rod and a movable hydraulic machine are connected to one side of the equipment frame in an inserted mode. The spraying device is reasonable in structure, the movable plate drives the spraying plate to slide on the equipment frame, the spraying plate stretches out and draws back on the movable plate, the spraying plate quickly moves on the equipment frame to adjust the position and the height, subsequent fixing of workpieces is facilitated, the hydraulic rod is used for supporting, shaking is avoided when the position and the height of the spraying plate are adjusted, and the spraying device is convenient to use. The spraying base moves in the spraying cover at a constant speed, the electrostatic generator enables generated high voltage and corona to discharge, then charges are generated near the spraying gun for spraying, paint is sucked to a workpiece, the uniformity and quality of a sprayed coating are guaranteed, the top heating plate and the curing heating plate heat the interior of the curing box, and the spraying effect is improved. And the molten powder is tightly attached to the surface of the sprayed workpiece.

The invention discloses a film coating device for filter film production based on an electrostatic film coating method, relates to the technical field of filter films, and provides the following scheme aiming at the problems that a base material provided by the background technology is easy to form secondary pollution, the base material cannot be subjected to real-time dust removal treatment, slurry cannot be stably attached to the base material, and the film coating effect is poor. Comprising a base and a base material, the mounting mechanism comprises two mounting seats which are respectively connected to the outer wall of the top of the base through bolts, and two ultrasonic dust removers which are respectively connected to the outer walls of the opposite sides of the two mounting seats through bolts; the two atomization depositor and the two terahertz pulse irradiator are respectively connected to the outer walls of the opposite sides of the two mounting seats through bolts. According to the device, dust attached to a base material can be cleaned in real time, secondary pollution of the base material in the conveying process is prevented, the situation that slurry cannot be stably attached to the base material is avoided, and the film coating effect is improved.

To provide an electrostatic coating gun that can achieve improvement in coating efficiency while suppressing occurrence of electrostatic repulsion.SOLUTION: An electrostatic coating gun comprises: a body part; a paint passage provided in the body part; a rectification part which generates revolution flow in powered paint flowing in the paint passage; a discharge electrode to which a high voltage is applied; and a nozzle having a plurality of ejection ports which are provided around the discharge electrode and eject the powered paint flowing the paint passage. The ejection port is formed into a shape that is twisted with respect to a flow direction of the powered paint in the paint passage.SELECTED DRAWING: Figure 5

Provided is an electrostatic coating device in which the discharge modes of two fluids can be controlled independently of each other.　The electrostatic coating device 100 comprises: a nozzle 1 having a discharge hole 10, a conductive first pipe body 11, which has a first flow passage 16 as a flow passage for a first fluid F1 and reaches the discharge hole 10, and a conductive second pipe body 12, which has a second flow passage 17 as a flow passage for a second fluid F2 and reaches the discharge hole 10; a counter electrode 2 positioned facing the discharge hole 10; and a voltage control unit 51 capable of applying a first drive voltage between the first pipe body 11 and the counter electrode 2 and a second drive voltage, different from the first drive voltage, between the second pipe body 12 and the counter electrode 2.