108results about "Electrophoretic coatings" patented technology

A steel sheet coated with an aluminum-based coating and a second zinc coating having a thickness less than or equal to 1.1 μm is provided. A method for preparing the coated steel sheet, a method for preparing a press-hardened part from the steel sheet, a press-hardened part, and the use of the press-hardened part are also provided.

An article may include a substrate. An article may include a barrier layer on the substrate, the barrier layer including: a bond coat comprising a matrix, diffusive particles disposed in the matrix, and gettering particles disposed in the matrix, and a topcoat comprising a first top coat layer adjacent the bond coat and a second top coat layer disposed on the first top coat layer, the first top coat layer having a lower porosity than the second top coat layer.

To provide a structure having a dense carbon film. [Solution] A structure comprising a conductive substrate and a carbon film on the surface of the conductive substrate, wherein the carbon film includes an aggregate of carbon nanoparticles, and the carbon nanoparticles are made of amorphous carbon.

This utility model relates to the field of electrophoresis hanger technology and discloses an electrophoresis hanger with an anti-workpiece detachment structure. It includes a main hanger board, a suspension ring fixedly installed at the upper end of the main hanger board, a hanging structure installed at the front end of the main hanger board, and an anti-detachment structure installed at the front end of the main hanger board. Pushing the locking plate outwards towards the hanging hook compresses the connecting spring, and then placing the workpiece on the hanging hook. Releasing the locking plate allows the connecting spring's restoring force to bring the locking plate closer to the workpiece. The two sets of locking plates restrict the position of the workpiece. Then, activating the cylinder moves the connecting plate and the abutment rod downwards, pressing the upper surface of the workpiece and fixing it in place. This prevents the workpiece from tilting and, because the abutment rod prevents it from detaching from the hanging hook, keeps the workpiece stable during electrophoresis. A sliding component allows adjustment of the hanging hook's height.

The application provides a preparation method of an ultrahigh molecular weight polyethylene fiber cloth / polyolefin composite material, and comprises the following steps: 1. Fiber / fiber cloth modification: ultrasonic cleaning of the ultrahigh molecular weight polyethylene fiber / fiber cloth, drying, low-temperature plasma surface treatment, electrophoretic deposition of a layer of functionalized dopa-based substance on the surface of the fiber / fiber cloth, drying, and obtaining modified ultrahigh molecular weight polyethylene fiber / fiber cloth; 2. Resin matrix modification: taking polyolefin resin matrix such as polyethylene, polypropylene, hydrocarbon resin, vacuum drying treatment, melting, adding a certain amount of ethylene-propylene-diene rubber (EPDM) and vulcanizing agent for blending, and then taking out and hot-pressing into a sheet-shaped resin matrix; and 3. Laminating the modified ultrahigh molecular weight polyethylene fiber / fiber cloth obtained in the step 1 and the sheet-shaped resin matrix obtained in the step 2, and hot-pressing into a shape.

A process for making a carbon nanotube structure includes forming a composite by depositing or growing carbon nanotubes onto a metal substrate, and infusing the carbon nanotubes. In other aspects, a method of making a wire, includes coating carbon nanotubes on a wire, and electroplating the carbon nanotubes. In still other aspects, a method of making a conductor includes growing or depositing vertically aligned carbon nanotubes on a sheet. Yet still, a method of making a cable includes forming multiple composite wires, each composite wire formed by depositing or growing carbon nanotubes onto a metal substrate, and performing a metal infusion of the carbon nanotubes. The method also comprises combining multiple finished composite wires or objects to make large cables or straps.

This invention relates to an electrophoresis module in the field of electrophoresis technology, comprising a gantry frame, an immersion tank, and a conveying module. The conveying module includes a fixed frame, a cathode conductive mechanism, and a suspension assembly. The suspension assembly is mounted on the fixed frame via a chain drive assembly, and the cathode conductive mechanism is disposed within the fixed frame. This invention places the cathode conductive mechanism within the fixed frame, and the suspension assembly is electrically connected to the cathode conductive mechanism via conductive springs, avoiding direct exposure of the cathode conductive mechanism to the electrophoresis solution environment, effectively solving the problem of easy corrosion of the cathode conductive mechanism by the electrophoresis solution in existing technologies. Simultaneously, the use of U-shaped insulating blocks to arrange the conductive springs not only prevents the current from the conductive springs from breaking down the slider and other components; moreover, the design of the U-shaped insulating blocks nested on the slider enhances the overall structural stability, preventing components from loosening or falling off due to vibration or external forces during the electrophoresis process.

The corrosion resistance of converted coated metal substrate surfaces can be further improved by treating the surfaces with an aqueous mixture of a preformed reaction product obtained by reacting a catechol compound (e.g., dopamine or a salt of dopamine) with a functionalized co-reacting compound (e.g., polyethyleneimine).

The present application relates to the field of coating equipment, in particular to a double-layer cargo compartment coating support device and its use method, comprising a basic support frame; The basic support frame is provided with a support unit; The support unit comprises a first support unit and a second support unit; The first support unit comprises a support mechanism distributed on the basic support frame; The second support unit comprises an upper support structure distributed at both ends of the basic support frame; The upper support structure comprises a rotating structure and a support mechanism; The upper support structure can rotate relative to the basic support frame through the rotating structure; The present application can realize the synchronous installation of two cargo compartments through the setting of the first support unit and the second support unit, and can realize the transfer of one cargo compartment trolley for two cargo compartments during subsequent coating production, greatly improving the use efficiency of the cargo compartment trolley, and coating two cargo compartments at a time can significantly improve the production line capacity.

A preparation method of an electroplated part includes the steps of plating a porous metal coating layer, placing the porous metal coating layer in a graphite colloid, and depositing graphite colloidal particles into the porous metal coating layer. The porous metal coating layer is plated at or proximate an outer side of a substrate of the electroplated part. The graphite colloidal particles are deposited into pores of the porous metal coating layer from the graphite colloid to form a graphite alloy coating layer.

The invention relates to an aluminium alloy consisting of the following, in wt%: Si: between 6.50 and 8.50; Zn: between 0.20 and 0.80; Mn: between 0.20 and 0.50; Mg: between 0.10 and 0.50; Fe: 0.15<Fe≤0.35; Cu: between 0.05 and 0.35; Ti: less than or equal to 0.20; Zr: less than or equal to 0.30; Mo: less than or equal to 0.20; Ni: less than or equal to 0.10; Pb: less than or equal to 0.10; Cr: less than or equal to 0.03; V: less than or equal to 0.03; Sr: between 0.010 and 0.025; the balance being aluminum and unavoidable impurities.

The present invention addresses the problem of providing an electronic component having excellent high-temperature durability. The problem is solved by an electronic component including a metal part and a film on the entirety or a portion of the metal part, in which the film comprises an amino group-modified epoxy resin or a salt thereof which is obtained by reacting a specific epoxy resin (A1) and a specific amine compound (A2).

The utility model provides a kind of electrophoresis drying oven door body buffer limiting structure, belong to electrophoresis drying oven technical field, this electrophoresis drying oven door body buffer limiting structure, including electrophoresis drying oven body;Box door body is hinged in the one side inner wall of electrophoresis drying oven body by hinged axle, and the one end of electrophoresis drying oven body is provided with receiving groove;Two groups of limiting mechanisms, each group of limiting mechanism includes: limiting slot, limiting slot is provided in the one end of box door body, the inner surface of limiting slot is slidably connected with limiting block, and the one end of limiting block and the one side inner wall of receiving groove are fixedly connected with mounting seat;Sliding shell, sliding shell is rotatably connected to the inner surface of one mounting seat by pivot, strengthen the buffer and limiting force of door body, solve the inertia impact box when closing, avoid the generation of noise and the damage of door body internal structure, reduce unnecessary resource waste.

This invention discloses a method for preparing a ceramic matrix composite material on the surface of a metal pipe, comprising the following steps: S1, pretreating the surface of the metal pipe to improve its surface roughness; S2, wrapping alumina fiber cloth or high-silica fiber cloth around the surface of the metal pipe obtained in step S1 using an adhesive, thereby forming a buffer layer on the surface of the metal pipe; S3, wrapping carbon cloth or silicon carbide fiber cloth on the buffer layer on the surface of the metal pipe, and filling it with a high-temperature adhesive, followed by low-temperature curing and high-temperature sintering to form a flexible interface layer between the high-temperature adhesive and the carbon cloth or silicon carbide fiber cloth on the surface of the buffer layer; S4, depositing an energetic thin film on the flexible interface layer, and igniting the energetic thin film using a laser or electric spark to rapidly ceramicize the buffer layer and the flexible interface layer, forming a ceramic matrix composite material on the surface of the metal pipe. The resulting ceramic matrix composite material exhibits a high degree of interfacial bonding strength with a thermal expansion coefficient that closely matches the matrix thermal expansion coefficient.

A biodegradable magnesium metal fixation pin for oral tissue fixation and its preparation method are disclosed. The fixation pin includes a pin head and a pin body. The entire fixation pin is made of 99.9-99.99% high-purity magnesium substrate, with no alloying elements added and an impurity content ≤0.01%. The surface of the fixation pin is sequentially coated with an oxide film layer and a polydopamine / hydroxyapatite composite coating. The oxide film layer has a thickness of 5-15 μm and a porous structure with pore sizes of 1-5 μm. The oxide film layer is prepared by a micro-arc oxidation process. The polydopamine / hydroxyapatite composite coating has a thickness of 10-20 μm, wherein the mass fraction of hydroxyapatite is 30-50%. This biodegradable magnesium metal fixation pin for oral tissue fixation features a reasonable structural design, excellent mechanical properties, and controllable degradation behavior.

This invention discloses a method for preparing a TiB2 coating that inhibits particle agglomeration during electrophoretic deposition, comprising the following steps: First, a fluoride salt mixture is prepared and divided into two parts. One part of the fluoride salt is mixed with boron powder and titanium dioxide powder, heated to form a molten salt, and the upper layer of molten salt is extracted. After rapid cooling, crushing, and grinding, TiB2-fluoride salt composite powder is obtained. Then, the other part of the fluoride salt is heated to form a base molten salt, and the TiB2-fluoride salt composite powder is added to the base molten salt. Electrophoretic deposition is then performed using a ring-shaped graphite anode and a cathode to be deposited. This method prepares highly dispersed TiB2-fluoride salt composite powder through in-situ synthesis, and then uses a ring-shaped anode to reduce the probability of TiB2 particle agglomeration during electrophoresis, effectively inhibiting particle agglomeration and improving the TiB2 electrophoretic deposition efficiency.

Primer coatings for liquid electrophotographic printing may comprise: an aqueous fluid; about 50 wt% to about 90 wt%, based on total dissolved or dispersed solids, of a coating material comprising a rosin acid and an acid-functional ethylene copolymer having an acid number of about 110 mg KOH / g polymer or below; and about 10 wt% to about 50 wt%, based on total dissolved or dispersed solids, of a coating enhancer comprising a polyurethane. The acid-functional ethylene copolymer and the rosin acid may be at least partially neutralized with a base comprising at least one amine.

The utility model relates to the technical field of positioning and guiding equipment, and discloses a tank immersion type electrophoresis line workpiece positioning and guiding device which comprises an electrophoresis tank, supporting plates are fixedly connected to the outer walls of the two sides of the electrophoresis tank, and electric push rods are fixedly connected to the top ends of the two supporting plates. According to the technical scheme, the L-shaped mounting frame is pushed by the electric push rod to ascend and descend, manual carrying or adjustment of the positioning check block is not needed, production efficiency is greatly improved, manual contact with electrophoresis liquid is avoided, potential safety hazards are reduced, horizontal displacement and lateral swing of the positioning check block can be limited through cooperation of the guide wheels in the guide grooves, and the positioning check block is prevented from being damaged. Meanwhile, under the action of a guide rod and a fixing block, the stability of the positioning check block during lifting can be improved, the smoothness of the positioning check block during vertical lifting can be improved through a guide wheel, through cooperation of all the structures, operators do not need to frequently enter the electrophoresis tank for mounting and dismounting, and convenience and practicability are achieved.

This invention relates to a method for preparing modified cellulose fiber nonwoven materials for ice crystal films. A porous membrane, consisting of a cellulose fiber spunlace nonwoven fabric with a three-dimensional texture, is tightly sandwiched between a soluble metal anode and an inert cathode to construct an electrolytic cell. The electrolytic cell is immersed in an electrophoretic modification solution containing negatively charged biocompatible macromolecules. A DC voltage is applied between the two electrodes, driving the macromolecules to actively penetrate into the spunlace nonwoven fabric via an electric field. An electrochemical oxidation reaction causes the soluble metal anode to release crosslinking ions in situ. These crosslinking ions then react with the migrated macromolecules in situ, forming a gel network within the fiber network. Finally, the product is obtained after rinsing and drying. This invention makes the preparation process more efficient, achieving deep and uniform penetration and efficient in-situ fixation of the modifier in the fiber substrate. It also protects and even strengthens the original physical texture during the modification process, resulting in high-performance gel mask materials.

This utility model relates to the field of conductive clamping technology and discloses a conductive clamping fixture for electrophoretic coating of workpieces. It includes a support frame, with two cylinders fixedly connected to the inner top wall of the support frame. The output ends of the two cylinders are fixedly connected to a housing. A clamping assembly is disposed inside the housing. Two connecting blocks are slidably connected inside the housing. A movable plate is fixedly connected to the bottom of each connecting block. A clamping plate is disposed on the outer side of the movable plate, and a fixing assembly is disposed inside the movable plate. The clamping assembly includes a motor, the bottom end of which is fixedly connected to the top of the housing. In this utility model, the motor drives a gear to rotate, which in turn moves a rack, which in turn moves the movable plates via the connecting blocks. This allows the two clamping plates to stably clamp workpieces of different specifications, thereby improving the equipment's adaptability to diverse workpieces and better meeting diverse production needs.

The utility model relates to the technical field of coating fixture, and disclose a clamp for electrophoretic coating, including the mounting panel, the below of mounting panel is provided with the connecting plate, the top fixed mounting of connecting plate has the guide rod. Through setting up telescopic hydraulic cylinder drive sliding seat along guide reinforcing batten slide, drive adjustment rack through with the gear wheel meshing realizes two groups of clamping alignment plate synchronous or opposite movement, can adapt to different width work piece, cooperation guide reinforcing batten provides stable track for the sliding of sliding seat and moving plate, enhances the overall structural strength and stability of clamping part, reduces the clamping failure risk caused by vibration or external force, at the same time, the inside wall deformation clamping column of clamping alignment plate can be according to the work piece surface shape self -adaptation deformation under the spring action, ensure that clamping is stable and reliable, avoid work piece to shift or sway in the electrophoresis process, reach the effect of improving coating quality.

Electro-optic (especially electrophoretic) front plane laminates (FPLs) that include a top layer of light-transmissive polyurethane and displays that include a top layer of light-transmissive polyurethane. Because the FPLs and displays are flexible, they can be easily unrolled, and in some instances cut, at the point of installation and then easily incorporated into a surface, such as a floor, or the body of a vehicle. The front plane laminates (FPLs) and displays that include a top layer of light-transmissive polyurethane may be subsequently overcoated with a polyurethane sealant, polyurethane hard coat, polyurethane dispersion, or polyurethane film.

This utility model discloses an electrophoretic coating equipment for metal workpieces, relating to the technical field of electrophoretic coating equipment. It includes: a coating tank with a hanger above it for suspending the metal workpiece; a stirring assembly located above the hanger, with a gantry frame fixedly connected between the stirring assembly and the hanger; and a defoaming component movably connected to the gantry frame and capable of moving vertically along the gantry frame, floating on the liquid surface inside the coating tank. This utility model utilizes a gantry frame for connection and support at the top of the hanger, along with a defoaming component movably connected to the gantry frame. By utilizing the defoaming component's ability to float on the liquid surface inside the coating tank and the radial limitation provided by the gantry frame, combined with the rotational drive of the gantry frame by the stirring assembly, the defoaming component automatically removes air bubbles from the liquid surface when the metal workpiece suspended at its bottom, driven by the hanger, is immersed below the liquid surface in the coating tank for electrophoretic coating.

This invention relates to the field of coating technology, and more particularly to an electrophoretic coating and a method for low-temperature integrated coating of vehicles. The electrophoretic coating provided by this invention significantly reduces the curing temperature to 130-140℃ by optimizing the resin and curing agent systems, resulting in energy savings of over 15% compared to traditional electrophoretic coating curing systems. Furthermore, the curing agent system of this invention is stable at room temperature, avoiding the storage safety hazards of traditional isocyanate systems. It can also synergistically catalyze at low temperatures, achieving rapid cross-linking and excellent film performance. In addition, the B1B2-based low-temperature integrated coating process for vehicles provided by this invention, utilizing the aforementioned electrophoretic coating in combination with low-temperature adhesive materials, low-temperature first-layer color paint, and low-temperature second-layer color paint, not only solves the problem of color difference between the vehicle body and plastic parts, but also reduces energy consumption, saves time, achieves cost reduction and efficiency improvement, and promotes green transformation, demonstrating promising application prospects.

A primer coating for liquid electrophotographic printing may comprise: an aqueous fluid; about 50% to about 90% by weight of a coating material, based on total dissolved or dispersed solids, the coating material comprising rosin acid and an acid-functionalized vinyl copolymer with an acid value of about 110 mg KOH / g or lower; and about 10% to about 50% by weight of a coating enhancer comprising polyurethane, based on total dissolved or dispersed solids. The acid-functionalized vinyl copolymer and rosin acid may be at least partially neutralized with a base comprising at least one amine.

The utility model discloses an automobile connecting piece electrophoretic paint tank structure, including electrophoretic paint tank main part, the rear side wall of electrophoretic paint tank main part is assembled with the liquid storage tank, the inside assembly of electrophoretic paint tank main part has the piece net box, the rear side inner wall of electrophoretic paint tank main part is installed with the slide, the slide is assembled with the sliding block, the lateral wall of sliding block is installed with the bearing frame, the piece net box is placed on the bearing frame, the top of liquid storage tank is assembled with the communicating pipe, the rear side wall of electrophoretic paint tank main part is assembled with the liquid inlet pipe, the setting of this automobile connecting piece electrophoretic paint tank structure, the structure design is reasonable, the liquid storage tank of electrophoretic paint tank main part rear side assembly, through the thread connection design of communicating pipe, liquid inlet pipe and sealing cover, has realized the convenient storage and nimble supplement of paint liquid, when the paint liquid in paint tank is insufficient, can carry out the liquid supplement of quick and efficient, guarantees the continuity of electrophoretic coating work.

The utility model provides a kind of electrophoretic painting spraying device, including base, the top of base is detachably provided with filter plate, the left and right sides of base are symmetrically provided with sliding slot one, rotatingly arranged in the inside of sliding slot one of left side is screw rod, sliding block one is threadedly connected on screw rod, the rear side of left side sliding slot one is provided with motor one, the output end of motor one is connected with screw rod by coupling, by the electrophoretic painting spraying device of the utility model, the impurity on the upper end of filter plate can be cleaned by the brush plate set, avoid the impurity to cause the blockage of filter plate, prolong the service life of filter plate, reduce the cost of replacing filter plate, improve equipment work efficiency.