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69results about "Electric arc spraying" patented technology

Electric arc spraying device suitable for inner wall of pressure vessel

The invention belongs to the field of electric arc spraying and coating systems, and particularly relates to an electric arc spraying device suitable for the inner wall of a pressure vessel. The electric arc spraying device suitable for the inner wall of the pressure vessel comprises a spraying gun, a swing telescopic shaft, a rotary telescopic shaft, a rotary connecting mechanism, a sliding positioning base, a control cabinet, a wire and compressed air conveying pipe and a transmission mechanism. The swing telescopic shaft and the rotary telescopic shaft are connected through the rotary connecting mechanism. The rotary telescopic shaft is installed on a platform of the sliding positioning base. The wire and compressed air conveying pipe penetrates through the rotary telescopic shaft and the swing telescopic shaft and is connected with the spraying gun and the control cabinet. The transmission mechanism is assembled on a transmission shaft at the bottom of the rotary telescopic shaft. The electric arc spraying device can be used for conducting electric arc spraying operation on the inner wall of the welded pressure vessel and conducting repairing spraying operation on a weld zone of the inner wall of the pressure vessel, and thus the corrosion resistance of the inner wall of the pressure vessel is improved. The spraying process can be observed in real time and adjusted anytime, and operation steps are simple.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Simultaneous online zinc spraying and dust removal device for multiple microchannel aluminium flat pipes

The invention discloses a simultaneous online zinc spraying and dust removal device for multiple microchannel aluminium flat pipes. The simultaneous online zinc spraying and dust removal device comprises spraying equipment, a spraying cabinet and a dust removal device, wherein the spraying equipment is arranged in the spraying cabinet, and an air outlet of the spraying cabinet is connected to the dust removal device; the multiple microchannel aluminium flat pipes enter into the spraying cabinet from one side of the spraying cabinet in parallel and exit out of the spraying cabinet from the other side of the spraying cabinet; the spraying equipment comprises a spraying main machine and a plurality of melting injection spray guns, the electric current parts of the plurality of melting injection spray guns are connected to the electric current output end of the spraying main machine, each melting injection spray gun is used for carrying out zinc spraying operation on each microchannel aluminium flat pipe, and the spraying main machine is provided with a power source part which comprises an input rectifying circuit, an input filter circuit, a power switch circuit, a voltage conversion and isolation circuit, an output rectifying circuit, an output filter circuit, an electric arc zone temperature detection sensor, a comparison circuit and a control circuit. The simultaneous online zinc spraying and dust removal device has a good spraying effect and low pollution to environments.
Owner:SHANGHAI LIANGSHI BLASTING & COATING EQUIP

Stainless steel anti-corrosion pipe used for oil gas field and manufacturing method thereof

InactiveCN101215716AHas stainless steel propertiesSolve the problem of anti-corrosionElectric arc sprayingAlloyWater cooling
The invention relates to a stainless steel anti-corrosion pipe which is used in oil-gas field and a manufacturing method. The manufacturing technology of the stainless steel anti-corrosion pipe comprises the following steps: first, carrying out impact cleaning on an oil pipe or a sleeve pipe, then immersing in NaOH liquid for 3-5 seconds to remove oily soil on the surface of the oil pipe or the sleeve pipe, washing away residual oily soil by water, then washing in hydrochloric acid 15% for 5-7 seconds to remove oil on the pipe, washing away residual acid by water, assistant plating in plating auxiliary for 2 seconds, drying in a groove type drying pool for 2 seconds under the temperature of 120 DEG C, immersing the pipe in aluminum multicomponent alloy liquid, smelting the pipe for 3-5 seconds under the temperature of 700-750 DEG C, leading the surface of the pipe body into stainless steel, then air cooling and water cooling, and obtaining stainless steel anti-corrosion oil pipe and sleeve pipe through electric arc hot spraying on a screw thread. An oil pipe or a sleeve pipe which is prepared by the method has the advantages of good corrosion resistance, large binding force, good mechanical property, ageing resistance and strong antiscaling paraffin-controlling property.
Owner:DAQING GASOLINEEUM INST +1

Aqueous fire board marble simulation paint, preparation method and construction method thereof

The invention provides to an aqueous fire board marble simulation paint, a preparation method and a construction method thereof, and relates to a coating material and a use method thereof. The aqueous fire board marble simulation paint is prepared from water, an emulsion, a film-forming additive, a wetting agent, a defoamer, propylene glycol, a preservative, a multifunctional additive, a thickener aqueous solution, rock sheet and color sand. The preparation method comprises three steps such as dispersion preparation, base paint preparation and aqueous fire board marble simulation paint preparation. The construction method comprises five steps such as base layer treatment, prime coat brushing, middle coating spraying, aqueous fire board marble simulation paint spraying, and top coat brushing. According to the present invention, the process is simple, the product system is system, the construction is simple and quick, the aqueous fire board marble simulation paint has the granite effect, and the limitations of cumbersome color blending, complex process, instable product system and high construction difficulty of the water-in-water multi-color coating material; the difficult problems of high cost, low safety factor and the like of the granite and the marble are overcome; and the disadvantages of easy pollution, color blur, low simulation and the like of the stone paint are solved.
Owner:DALIAN ZHONGKAI COATING MAKING CO LTD

Wiredrawing type high-speed electric arc spraying gun

ActiveCN104874497ARealize the atomization effectUniform atomizationElectric arc sprayingElectric machineryEngineering
The invention discloses a wiredrawing type high-speed electric arc spraying gun. The wiredrawing type high-speed electric arc spraying gun comprises a wire feeding motor, a speed reducing mechanism, wire feeding mechanisms and a spraying gun head, wherein an output shaft of the wire feeding motor is connected with the speed reducing mechanism; two ends of an output shaft of the speed reducing mechanism are connected with the wire feeding mechanisms respectively; wire inlet and outlet pipes are arranged on each wire feeding mechanism; the spraying gun head comprises a rear gun body; a front gun body is mounted at the front end of the rear gun body; a spray nozzle is fixed on the rear gun body through a support seat and extends out of an inner cavity of the front gun body; an airflow flow channel is formed in the rear gun body and penetrates through a converging-diverging flow channel of the spray nozzle; an outer cover is arranged on the outer wall of the spray nozzle, and an annular flow channel communicated with the converging-diverging flow channel is formed between the outer cover and the spray nozzle; the rear gun body is equipped with two current contact nozzles, the current contact nozzles correspond to corresponding wire guiding inclined holes in the spray nozzle, and two wires conveyed from the wire guiding inclined holes are converged nearby the converging-diverging flow channel. According to the wiredrawing type high-speed electric arc spraying gun, the particle spray speed can be increased, so that the atomizing jet is more uniformly concentrated, wire feeding parts in the wire feeding mechanisms are prevented from being contacted with wires and dust, and the service life is effectively prolonged.
Owner:ACADEMY OF ARMORED FORCES ENG PLA +1

Integral push-wire-type electric arc spraying equipment

The invention relates to an integral push-wire-type electric arc spraying equipment used for thermal spraying, which can be seen in an attached figure of the abstract. The equipment adopt an inverter-type spraying power supply, has the technical scheme of combining and closing the spraying power supply, a wire feed device and a wire reel bracket (including a wire reel) into a whole body, and is matched with a home-made electric arc spray gun. The integral push-wire-type electric arc spraying equipment solve the problems of heavy weight, large volume, dispersed devices, more externally connected cables and the like of the push-wire-type electric arc spraying equipment. The equipment have the function of stepless regulation for output voltage within the range of 10-50V, and can freely adjust the parameters without stopping a machine in the spraying process; the equipment is provided with a manual/automatic spraying and wire detection/spraying switch, thus being convenient for the selection of operation way and preventing electric arc from hurting people and damaging equipment when in the process of installing, adjusting and checking spraying wires; and due to the full-closed structure, the blockage phenomenon of a wire guide pipe is avoided. The equipment has the characteristics of small volume, light weight, convenient carrying, safe and reliable equipment performance, convenient use, simple operation, stable spraying quality and the like.
Owner:慈溪光华金属复合材料有限公司

Induction charging and corona charging combined two-stage charging atomizing nozzle

The invention relates to an induction charging and corona charging combined two-stage charging atomizing nozzle. The induction charging and corona charging combined two-stage charging atomizing nozzlecomprises a pesticide solution spray pipe, an airflow spray pipe and a conical charging cavity; the middle of the pesticide solution spray pipe is embedded with a ring-shaped pesticide solution electrode, the rear of the pesticide solution spray pipe is provided with a pesticide solution inlet, and the front portion of the pesticide solution spray pipe is a conical spray nozzle; the airflow spraypipe wraps the pesticide solution spray pipe, the front of the airflow spray pipe is provided with a ring-shaped air outlet, and the air outlet angle of the airflow spray pipe is identical to the opening angle of the conical charging cavity; the conical charging cavity is connected with the front portions of the pesticide solution spray pipe and the airflow spray pipe, the middle of the inner wall of the conical charging cavity is embedded with a ring-shaped induction electrode, and the front opening of the conical charging cavity is provided with a corona electrode with 8 corona needles; thepesticide solution electrode and the corona electrode are connected with the negative electrode of a power supply, the induction electrode is connected with the positive electrode of the power supply, pesticide solution is sprayed and atomized via the conical spray nozzle and meanwhile induces negative charges to complete a primary charging process; the 8 corona needles of the corona electrode discharge under action of corona voltage, negative charge ions encounter with and are combined with charged droplets when moving towards the induction electrode to complete a secondary charging process.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Small-sized wire drawing type electric arc spraying equipment

The invention relates to small-sized wire drawing type electric arc spraying equipment used for hot spraying, which is shown in the attached drawing of the abstract. The equipment adopts the technical scheme of an inversion type spraying power supply and a wire drawing type spraying gun, the output voltage of 10 to 40V is regulated in a stepless way, and the voltage can be regulated in the spraying process without stop; a manual/automatic spraying and wire inspection/spraying switch is arranged, which is convenient to select an operation mode and avoid the occurrence of the condition that electric arcs injure people and damage equipment because of the short circuit of a wire material when the spraying wire material is installed, regulated and inspected; the spraying wire material is limited to be phi 1.0 to phi 1.6mm, the maximum spraying current is 250A, the load duration rate is 100 percent, and continuous spraying is permitted; the weight of the spraying power supply is 15kg, and the weight of the spraying gun is 1.5kg; and the equipment has the characteristics of small volume, light weight, convenient carrying, safe and reliable equipment performance, convenient use, simple operation, stable spraying quality and the like, is suitable for the field operation and the use in an occasion with small spraying space and is suitable for spraying a component with a fine and small structure and a product with a fine coating.
Owner:慈溪光华金属复合材料有限公司

Spiral-flow type supersonic speed electric arc spraying gun

The invention discloses a spiral-flow type supersonic speed electric arc spraying gun, which comprises a gun body, wherein a contact tip is connected onto a conducting wire; airflow holes are uniformly distributed on a radial airflow channel arranged in the gun body; a spiral-flow ring is connected with the gun body through screw threads; spiral-flow holes are uniformly distributed on the periphery of the spiral-flow ring; an air gathering hood is fixed with the spiral-flow ring through screw threads; a ceramic nozzle is pressed in the spiral-flow ring through the air gathering hood; and an inner cavity of the ceramic nozzle and an inner cavity of the air gathering hood are combined to form a Laval nozzle. According to the technical scheme, spiral-flow atomization and supersonic speed atomization are combined, the effect and the stability of jet flow atomization are enhanced through a spiral-flow structure and a Laval spray pipe, secondary acceleration of jet flow is realized, and the speed of jet flow is further improved, so that the spray coating particle hole atomization effect is stronger, nanometer refinement is achieved, flying speed achieves supersonic speed, and the prepared coating layer is obviously improved. The spiral-flow type supersonic speed electric arc spraying gun is not only suitable for coating equipment for precision parts, but also suitable for large-area coating preparation.
Owner:新乡市布瑞林特机械再制造有限责任公司

Electric arc spraying device

The invention discloses an electric arc spraying device, and belongs to the technical field of electric arc spraying. The electric arc spraying device comprises a wire feeding device and a gas sourceand further comprises a guide frame, wherein the guide frame comprises first arc-shaped sliding rods, second arc-shaped sliding rods and a supporting screw rod. The electric arc spraying device further comprises an adjusting device which comprises a connecting ring, a screw sleeve, connecting rods, guide blocks corresponding to the connecting rods in a one-to-one mode, the screw sleeve is matchedwith the supporting screw rod and is rotatably connected to the connecting ring, the connecting ring is connected to the supporting screw rod in a sleeve mode, one end of each connecting rod is hingedto the corresponding guide block, and the other ends of the connecting rods is hinged to the connecting ring, and the guide blocks are slidably arranged on the first arc-shaped sliding rods and the second arc-shaped sliding rods; the wire feeding device is used for conveying wires and enabling arc striking points of the wires to be located in an arc center of the first arc-shaped sliding rods andthe second arc-shaped sliding rods. According to the electric arc spraying device, a spraying range can be adjusted when a distance between air nozzles and a workpiece is fixed; and molten wires canbe fully atomized and an influence of arc position deviation, caused by deformation of the wires, on spraying effect is reduced.
Owner:SHENYANG INST OF ENG
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