202results about How to "Uniform coating thickness" patented technology

The invention discloses a method of plating Nickel with magnalium alloy without cyanogen and the plating technique. The direction for the plating solution is: 20 to 80g.dm-3 of copper charred phosphate; one or several of the 60 to 320g.dm-3 of sodium charred phosphate or Potassium charred phosphate or 60 to 250g.dm-3 of sodium citric acid, 5 to 20g.dm-3 of Potassium sodium tartaric acid, 60 to 250g.dm-3 of HEDP and 60 to 250g.dm-3 of amine ethylene; one or several of the 5 to 20g.dm-3 of hydrogen amine di-fluorin or 5 to20 g.dm-3 sodium fluoride or 5 to 20g.dm-3 of Potassium fluoride or 5 to 20g.dm-3 of lithium fluoride. The plating solution chooses the nickel sulfate or alkali type nickel carbonate or nickel acetic acid as the main salt and adds the reducing agent, combination agent and stabilization agent. The plating technique adopts the acid plating copper-plating three nickel-plating chromium. The invention has little pollution to the environment, high binding power and erosion-proof property.

The invention discloses a plating solution of magnalium alloy Nickel sulfate and its chemical plating technique. The plating solution is made up of: (1) 5 to 40g.dm-3 of Nickel sulfate, (2) 10 to 50g.dm-3 of reducing agent of hypo-phosphite sodium; (3) one or several of the 2.5 to 30g.dm-3of the citric acid or tri-sodium citric acid, 2.5 to 30g.dm-3of the lactic acid, 2.5 to 30g.dm-3of the acetic acid, 2.5 to 30g.dm-3of the malic acid, 2.5 to 30g.dm-3 of the third acid and 2.5 to 30g.dm-3of the buta-acid; (4) one or several of the 5 to 30g.dm-3of Potassium fluoride, 5 to 30g.dm-3of sodium fluoride, 5 to 30g.dm-3of lithium fluoride and 5 to 30g.dm-3of NH4HF2; (5) 0.1 to 3g.dm-3of sulphur carbamide. The plating steps include: washing with ultrasonic->washing with alkali->washing with acid->activation->dipping it in the zinc solution->getting rid of the activation solution->secondary dipping it in the zinc solution->chemical plating->passivation and sealing the holes. The invention is featured by little pollution to the environment, low cost, uniform film and simpel technique.

An anti-ultraviolet high-heat-insulation window film is provided with a scratch resisting layer, a transparent thin film base material layer, a heat insulation layer, an ultraviolet blocking layer, a pressure-sensitive adhesive bonding layer and a release film layer, wherein the scratch resisting layer is arranged on one surface of the transparent thin film base material layer through ultraviolet light curing, the heat insulation layer is arranged on the other surface of the transparent thin film base material layer through ultraviolet light curing, the ultraviolet blocking layer is arranged on the outer surface of the heat insulation layer through heat curing, the pressure-sensitive adhesive bonding layer is arranged on the outer surface of the ultraviolet blocking layer through heat curing, and the release film layer is compounded on the outer surface of the pressure-sensitive adhesive bonding layer. The heat insulation layer is formed by coating, drying and curing coating liquid consisting of an ultraviolet light coating and a nanoscale metal oxide. The anti-ultraviolet high-heat-insulation window film is simple in preparation process, high in ultraviolet light blocking rate and capable of being applied to building windows or automobile windows.

The invention provides a composite-coating continuous casting crystallizer copper plate with a long service life and a manufacturing technology thereof and belongs to the technical field of electroplating. The composite-coating continuous casting crystallizer copper plate with the long service life comprises a copper plate substrate and a coating on the surface of the copper plate substrate. The coating comprises an upper electroplating layer and a lower coating layer. The upper electroplated layer is a pure nickel layer or a low-cobalt nickel alloy layer resistant to high temperature and corrosion. The mass percent of cobalt in the low-cobalt nickel alloy layer is not higher than 3%. The lower coating layer is a wear-resistant coating layer or a ceramic coating layer. According to the composite-coating continuous casting crystallizer copper plate with the long service life and the manufacturing technology thereof, the electroplating technology and the supersonic thermal coating technology are combined, the upper portion and the lower portion of the crystallizer copper plate are different alloy coating layers, the different requirements for the upper portion and the lower portion of the crystallizer copper plate in continuous casting are effectively met, the upper electroplating layer is not prone to thermally cracking and falling at a high temperature, the lower coating layer has the excellent wear-resistant performance, in this way, the service life of the continuous casting crystallizer copper plate is greatly prolonged, and the product quality is greatly improved.

Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. This results in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such a s one have a tantalum anode.

The invention relates to an automatic spraying robot device in the field of automatic coating of an aircraft. The automatic spraying robot device comprises a movable spraying robot consisting of a three-vertical-coordinate-axis movable platform and a spraying execution mechanism, and a barrel supporting autorotation tool, wherein the three-vertical-coordinate-axis movable platform is connected with the spraying execution mechanism in a sliding manner and arranged on a slide rail at one side of a storage box, and the barrel supporting autorotation tool is connected with the storage box in a rotating manner. While the robot moves rapidly along a Y axis, a spray head can form any dihedral angle of 0 to 90 degrees with a YZ plane by adopting the Y axis as an intersection line, so that the spraying in the downward vertical direction, oblique upward direction and horizontal direction can be realized, and the automatic spraying robot device can be adaptive to storage boxes of different diameters and different work conditions, and the flexibility is very high, in addition, the automatic spraying robot can move to an arc end surface, an appropriate distance between the spray head and the arc end surface can be realized, and the vertical uniform automatic spraying can be realized in real time. The automatic spraying robot device is compact in layout, high in flexibility, simple in control way, high in spraying precision, uniform in coating thickness, small in environmental pollution, high in spraying efficiency and good in economic benefit.

The invention relates to a flexible rotary workbench for preparing a physical vapor deposition (PVD) coating on a tool. The flexible rotary workbench comprises a driving rod (1), a lower rotary table (2), an upper rotary table (3), a thrust ball bearing (4) and clamping body fixing rods (8). The thrust ball bearing (4) is arranged between the upper rotary table (3) and the lower rotary table (2). A big gear (5) and pinions (6) are arranged in the upper rotary table (3). The pinions (6) are engaged with the big gear (5). The big gear (5) is in interference fit with the driving rod (1). The upper rotary table (3) is engaged with the pinions (6). A cover plate is arranged at the upper end of the upper rotary table (3). The clamping body fixing rods (8) penetrate through the cover plate (7) and are connected with the pinions (6). The clamping body fixing rods (8) are driven by the pinions (6) to revolve and rotate. Revolution and rotation of the tool to be coated can be achieved through the cooperation of the flexible rotary workbench and a clamping body matched with the workbench, so that the surface of the tool to be coated is evenly coated with required coating materials, and the coating thickness is uniform.

The present invention relates to a fastening means (10; 110) consisting of a fastening element (11; 111) and a washer (20; 120), the washer (20; 120) being held on the fastening element (11; 111) in a rotatable and captive manner. Furthermore, the subject matter of the invention is such a fastening element (11; 111) which has at one end a bearing surface (14) for a washer (20; 120) held on the fastening element (11; 111) in a rotatable and captive manner and has an encircling undercut (13; 113) at the end facing its bearing surface (14). Finally, the subject matter of the invention is a washer (20; 120) having a contact surface (21) for the bearing surface (14) of a fastening element (11; 111), at least two axially extending retaining tabs (23; 123) being formed on the contact surface (21). The retaining tabs (23; 123) engage in the undercut (13; 113).

The invention relates to an arc spraying device of shaft parts, comprising a spray gun; the spray gun is fixed on a stretching mechanism of the spray gun; the stretching mechanism of the spray gun is installed on a longitudinal moving mechanism; the longitudinal moving mechanism is fixed on a longitudinal side of a spraying tool through a connecting frame; the spraying tool is clamped and the shaft parts are driven to rotate. In the invention, the spraying gun is fixed on the stretching mechanism of the spraying gun and the stretching mechanism of the spraying gun is installed on the longitudinal moving mechanism. Through clamping the spraying tool and driving the shaft parts to rotate, the purposes of automatic spraying of the shaft parts, reduction of labor strength for operators, high production efficiency, uniform spraying thickness and good spraying quality can be achieved.

In a liquid processing apparatus for forming a coating film on a polygonal substrate by spin coating in an ambient with a descending clean air flow, a spin chuck includes a support plate for substantially horizontally supporting the substrate thereon. Air flow control members are provided on the spin chuck such that the air flow control member being disposed adjacent to a periphery of the polygonal substrate supported on the spin chuck, wherein the air flow control member is not provided near corner portions of the substrate supported on the spin chuck. The liquid processing apparatus may includes an air flow regulation ring which is provided with an air inlet having an opening surrounding an outer periphery of the air flow control member, wherein the air inlet communicates with the exhaust unit.

The invention discloses a laser engraved ceramic coating anilox roller and a production method thereof. The laser engraved ceramic coating anilox roller comprises a roller body, a transition layer and a working layer; the transition layer is a metal combined bottom layer, and the working layer is a ceramic coating layer; the transition layer is fixed onto the roller surface of the roller body, and the ceramic coating layer is fixed to the transition layer. The production method includes the steps of roller body cleaning, roller body surface pretreatment, metal combined bottom layer spray coating, ceramic working layer spray coating, spray coated ceramic working layer abrasive machining and ceramic working layer laser engraving machining. The laser engraved ceramic coating anilox roller has the advantages of long service life and high printing accuracy. The production method is fewer in process steps and not demanding in production conditions, can ensure the technical effect of the ceramic anilox roller, and is applicable to industrial batch production.

The invention relates to a high-temperature automotive intermediate paint suitable for the electrostatic spraying of automatic robots and a preparation method thereof. The high-temperature automotive intermediate paint comprises the following components in part by weight: 35-65 parts of a resin, 20-40 parts of pigments and fillers, 0.5-5 parts of auxiliaries, and 10-30 parts of a solvent. When an automatic electrostatic robot sprays the intermediate paint, the coating process is implemented sequentially through the steps of spraying the intermediate paint, air-drying the intermediate paint, spraying a metallic colored paint, air-drying the metallic colored paint, spraying an overcoat varnish, and drying the overcoat varnish, so that compared with traditional coating processes, intermediate coating is implemented without drying firstly, therefore, the process is relatively simple and easy to operate, and to a certain extent, the energy consumption is saved by one time, the production efficiency is increased by over two times, and the labor cost is reduced.

An automatic boat spray painting line comprises a coating spray gun, a compressed air loop, a coating loop and a washing loop, wherein the output end of the compressed air loop is communicated with a power input hole of the coating spray gun, the output end of the coating loop and the output end of the washing loop share a section of pipeline and are communicated with a coating input hole of the coating spray gun, and the input end of the compressed air loop and the input end of the coating loop are communicated with the output end of an air compressor. According to the automatic boat spray painting line, compressed air is taken as power for spray painting, opening and closing operation can be performed on spray guns with different serial numbers to change the spraying swath of the spray guns, it is ensured that high-viscosity coatings in a coating container are always in a stirred state and not solidified to block an inner hole of the spray gun, working states of all the executive components are automatically executed by a control system on the basis of operation content and operation requirements according to design instructions, working efficiency is high, and the spray painting thickness is even.

The invention provides a hot-dipped galvanized alloy coating with high corrosion resistance for a steel member. The improvement is that, when the alloy coating is prepared, an adopted alloy ingot comprises the following components in percentage by weight: 0.01-2% of Al, 0.01-2% of Mg, 0.05-3% of Re, 0.002-1% of Cu and the balance of Zn. The alloy coating has the characteristics of high corrosion resistance, low zinc consumption, better economy and the like, which are suitable for the steel members of power transmission lines, and the alloy coating can effectively prolong the corrosion-resistant service life of the steel member of the power transmission line and prolong the corrosion-resistant service life by above 2 times in comparison with industrial hot-dipping of pure zinc while ensuring that the thickness of the coating is not increased.

A device is used for coating the liquid to the base, wherein the liquid is such as adhesive, especially the hot-melt adhesive. The base can move relative to the device, having a basal body (12) and a transfer valve (22) for selectively interrupting or releasing the liquid, wherein the basal body (12) can be connected with the liquid source and matched with a groove nozzle opening (54) communicated with a distributing channel (14) and a piston (16) moving in the distributing channel (14). By means of the piston (16), the distributing channel (14) can be changed and the length of the liquid canbe loaded, characterized in that, the nozzle opening (54) is communicated with the distributing channel (14) by means of a plurality of distant excurrent passages (18).

The invention provides a cathode which has high catalytic activity and stability as well as low energy consumption, a membrane electrode comprising the cathode, and a preparation method of the cathode. The cathode comprises a conductive substrate layer and a first catalytic layer arranged on the conductive substrate layer, wherein the first catalytic layer is formed by first nickel-based alloy catalyst. The cathode is characterized by further comprising a second catalytic layer arranged on the first catalytic layer, wherein the second catalytic layer is formed by the mixture of second nickel-based alloy catalyst and alkaline polymer electrolyte. The membrane electrode made by the cathode can be used for a fuel cell and water electrolysis.