98 results about "Arc spray" patented technology

The invention discloses hot galvanizing furnace nose wallboard spraying equipment, and relates to the field of electric arc spraying, the hot galvanizing furnace nose wallboard spraying equipment comprises a wallboard clamping device, a three-axis positioning device located on one side of the wallboard clamping device, and an electric arc spraying device and a plate surface measuring device which are symmetrically arranged at the execution end of the three-axis positioning device. The spraying equipment can automatically plan and realize intermittent jumping spraying, and the risk of microcracks of a coating due to thermal stress is effectively avoided; according to the scheme, a control center serves as a core, wall plate clamping, three-axis positioning, curved surface measuring and electric arc spraying devices are dispatched in a unified mode, and whole-course automatic operation from plate body clamping, posture correction, contour scanning to final spraying is achieved.

The coating method of the chamber for the deposition process according to the present invention comprises: a step a for forming a lower coating layer by performing an arc spraying process on an object to be coated using an aluminum wire; and a step b of forming an upper coating layer by subjecting a metal compound powder to a physical vapor deposition process on the lower coating layer formed in the step a, the metal compound in the step b has the same component as the PVD process by-product, so that the yield of semiconductor production can be increased by prolonging the maintenance and management period of the components in the chamber.

The utility model belongs to the technical field of lightning protection current transformers, and particularly relates to an energy storage current transformer with a lightning protection module, which comprises a current transformer shell, a connecting seat connected to the outer side of the current transformer shell, a lightning protection assembly connected to the current transformer shell, and a lightning protection device connected to the inner side of the current transformer shell, the surge protector and the lightning protection device are arranged on the inner side of the converter shell, the surge protector and the lightning protection device are connected with an external grounding system through a grounding wire, the movable ventilation part assists in air exhaust and heat dissipation of the interior of the converter shell, the lightning protection device is matched with the grounding wire, and when lightning stroke occurs, lightning impulse energy is absorbed and discharged by the grounding wire through the external grounding system. And meanwhile, the surge protector works, so that the possibility that other devices in the box body are damaged when the lightning protection device generates an arc spraying phenomenon is reduced.

The utility model relates to the technical field of target material production, in particular to a clamp for electric arc spraying. Comprising a jacking piece, one end of the jacking piece is provided with a jacking column coaxial with the jacking piece, the other end of the jacking piece is provided with a circular truncated cone and a protruding ring which are coaxial with the jacking piece, the protruding ring is located on the outer side of the circular truncated cone, and a first groove is formed between the protruding ring and the circular truncated cone; a plurality of second grooves are formed in the outer circumference of the protective sleeve, the extending direction of the second grooves is parallel to the axis of the protective sleeve, segmentation blocks are detachably connected into the second grooves, fin plates are arranged on the two sides of each segmentation block, and third grooves are formed in the sides, close to the protective sleeve, of the segmentation blocks. The coating section outside the protective sleeve is easy to take down.

The present application relates to a kind of corrosion and wear resistant thermal spraying nickel-based composite non-slip coating and its preparation method, belong to non-slip coating technical field.It includes alloy steel matrix, corrosion-resistant bottom layer and non-slip surface layer from bottom to top sequentially arranged;Wherein, the corrosion-resistant bottom layer is nickel-based superalloy, and the thickness of corrosion-resistant bottom layer is 50-200 μm;The non-slip surface layer is composed of the same nickel-based superalloy as corrosion-resistant bottom layer, nano alumina particles and micron alumina particles, and the thickness of non-slip surface layer is 300-600 μm.Using plasma enhanced high-speed arc spray technology realizes the high efficiency, high quality preparation of alloy bottom layer and metal / ceramic surface layer, and the obtained nickel-based composite non-slip coating has excellent properties such as non-slip, wear resistance and corrosion resistance, which can effectively improve the deck surface performance and service life of various large marine engineering equipment.

The invention discloses a spraying and coating material adding device and an electric arc spraying material adding method in the technical field of surface spraying material adding. The spraying and coating material adding device comprises a spraying pipe, a blocking cover and a wire guiding mechanism. The upper end of the spray pipe is communicated with a high-pressure protective gas source; a spraying space is defined by the blocking cover on the outer side of the spraying pipe, the spraying end is arranged in the spraying space, the upper end of the blocking cover is connected with the spraying pipe, and the lower end of the blocking cover is provided with an air leakage edge capable of elastically deforming. The wire guiding mechanisms are arranged on the two sides of the spraying pipe in pairs and used for conveying the metal wires to the lower side of the spraying end. According to the spray coating additive material device, in the additive material spraying process, air in the inner space is exhausted, the high-purity protective gas atmosphere is maintained, oxidation and pollution are reduced, and the additive material efficiency and quality are improved. And a gap is formed between the elastically-deformed gas release edge and the surface of the base material so as to discharge gas, so that the loss of shielding gas can be reduced, the device is self-adaptive to the uneven surface of the base material, and the material adding efficiency is improved.

The utility model belongs to the technical field of enamel production and processing equipment, and particularly relates to a quick and uniform enamel spraying device which comprises a lateral connecting frame, a control panel and a fixed base, the control panel is arranged on the outer side end face of the lateral connecting frame, and the fixed base is arranged at the side end of the lateral connecting frame. By arranging the feeding bin, the feeding pipe, the arc-shaped spraying frame, the connecting shaft, the motor and the pressurizing bin, enamel needing to be sprayed is placed at the upper end of the fixed base, then the motor and the liquid pump are started, the liquid pump pumps paint in the feeding bin into the pressurizing bin through the feeding pipe, and the enamel is sprayed through the spraying opening; the motor drives the connecting shaft to rotate, the arc-shaped spraying frame rotates at the same time when the connecting shaft rotates, through the special form of the arc-shaped spraying frame, the spraying opening surrounds the enamel structure from the periphery by 360 degrees till spraying is completed, and therefore compared with traditional enamel spraying equipment, the equipment can achieve surrounding type automatic spraying, and the enamel spraying speed is greatly increased.

The application discloses a neodymium-iron-boron permanent magnet surface anticorrosion coating and a preparation method thereof, and the preparation method comprises the following steps: pretreating the neodymium-iron-boron permanent magnet, depositing an aluminum-based alloy coating on the surface of the pretreated neodymium-iron-boron permanent magnet through arc spraying, and performing vacuum heat treatment and coating of a sealing agent, wherein the temperature of the vacuum heat treatment is 400 DEG C to 600 DEG C, so that the neodymium-iron-boron permanent magnet surface anticorrosion coating is obtained. The neodymium-iron-boron permanent magnet surface anticorrosion coating of the application can greatly improve the bonding strength and the anticorrosion performance through the construction of a composite protection system of a "metallurgical bonding diffusion layer (bottom layer) + Al sacrificial anode protection layer (middle layer) + sealing agent barrier layer (surface layer)", which has important industrial value for improving the service life of the neodymium-iron-boron magnet in severe environments and widening the application scenarios of the neodymium-iron-boron magnet.

The invention provides an uninterruptible power supply module and an uninterruptible power supply. The uninterruptible power supply module comprises two PCBs (Printed Circuit Board); the first radiator and the second radiator are arranged on the top surface of each PCB; the first power semiconductor is arranged on the first radiator, and the second power semiconductor is arranged on the second radiator; and the driving device is arranged on the bottom surface. The driving device is arranged on the bottom surface of the PCB, so that the arrangement position of the transformer is more flexible, more space can be avoided for an area between the first radiator and the second radiator, and the structural sizes of the first radiator and the second radiator can be increased, so that the heat dissipation capability of the first radiator and the second radiator is improved. The driving device and the power semiconductors are located on different sides of the PCB, when the first power semiconductor and the second power semiconductor fail, burst and arc spraying occur, the driving device is not prone to being polluted by the arc spraying, and therefore the diffusion range of machine faults is reduced.

The utility model provides a spraying device for processing an automobile spoiler, which relates to the technical field of spraying devices, and comprises a processing table, a fan, ventilation windows and a spraying device, the processing table is provided with a protective cover, the upper surface of the protective cover is provided with the fan, the two sides of the protective cover are provided with the ventilation windows, and the protective cover is provided with an operation panel; the spraying mechanism is arranged on the rear side of the protective cover, and the spraying mechanism comprises a liquid storage tank and an arc-shaped spraying pipe; the collecting mechanism is arranged below the machining table and used for collecting redundant spraying liquid in the spraying process. Under the cooperative driving of the motor and the arc-shaped gear ring, the arc-shaped spray pipe can do arc-shaped motion along a specific track, so that the arc-shaped spray pipe gradually moves from one end to the other end above the automobile spoiler, all parts of the automobile spoiler are uniformly and accurately covered with paint, the spraying quality and efficiency are greatly improved, and the spraying efficiency is improved. And common paint surface defects caused by manual spraying are effectively avoided, and the yield is remarkably improved.

This utility model relates to the field of EVA sheet technology and discloses a wear-resistant EVA sheet for automotive applications. It includes an EVA sheet body, with a first wear-resistant layer fixedly disposed on the outer side of the EVA sheet body. A second wear-resistant layer is fixedly disposed on the side of the EVA sheet body away from the first wear-resistant layer. The first wear-resistant layer is a chromium oxide coating, applied uniformly to the outer surface of the EVA sheet body using arc spraying, with a spray thickness of 0.6–0.8 cm. The second wear-resistant layer is also a chromium oxide coating, applied uniformly to the outer surface of the EVA sheet body using arc spraying, with a spray thickness of 0.6–0.8 cm. This wear-resistant EVA sheet for automotive applications features chromium oxide coatings in both the first and second wear-resistant layers, which exhibit good coating toughness, chemical stability at high temperatures, corrosion resistance, abrasive wear resistance, and anti-wetting properties, thus improving the wear resistance of the EVA sheet body. The epoxy coatings in the first and second corrosion-resistant layers have good adhesion and chemical resistance.

This invention discloses a hot-dip galvanizing furnace nose panel spraying equipment, relating to the field of arc spraying. It includes a panel clamping device, a three-axis positioning device located on one side of the panel clamping device, and an arc spraying device and a panel measuring device symmetrically arranged at the execution end of the three-axis positioning device. The spraying equipment of this invention can automatically plan and achieve intermittent skip spraying, effectively avoiding the risk of micro-cracks in the coating due to thermal stress. This solution uses a control center as its core, uniformly scheduling the panel clamping, three-axis positioning, surface measurement, and arc spraying devices, realizing fully automated operation from panel clamping, posture correction, contour scanning to final spraying.

The invention relates to a method for quickly acquiring dynamic mechanical properties of a surface layer of an electromagnetic launching track. Belongs to the technical field of electromagnetic track launching. The armature material spraying layer is prepared on the electromagnetic track material through electric arc spraying, interface diffusion of the track and the armature material is promoted through electric pulse treatment, the internal structure and performance of the spraying layer are regulated and controlled through heat treatment, and finally a reconstructed sample piece with the size meeting dynamic mechanical property test research is obtained. And during electric treatment, current flows through the electromagnetic track material from the armature material spraying layer. According to the method, a large number of reliable samples can be obtained in an extremely short time, and necessary conditions are provided for optimization of electromagnetic emission armatures and track materials and scientific and effective evaluation of electromagnetic emission life.

The invention discloses an internal thread aluminum pipe, a preparation method, an aluminum alloy and a heat exchanger, and relates to the technical field of aluminum alloys. Pure zinc is molten through an electric arc spraying or plasma spraying process, the molten zinc is atomized through high-speed airflow, atomized zinc particles are accelerated to be sprayed to the aluminum pipe to form a coating, then preparation is completed through heat treatment, parameters such as the zinc impregnation depth and the zinc layer coverage degree are further strictly limited, and the zinc coating is prepared. The anti-corrosion performance of the manufactured internal thread aluminum pipe is greatly improved, and the requirement for the service life of an air conditioner outdoor unit aluminum pipe condenser is met. In addition, the invention further develops an aluminum alloy with a specific formula, the internal thread aluminum pipe made of the aluminum alloy is matched with the zinc spraying process, and the anti-corrosion performance of the internal thread aluminum pipe is further improved.

The utility model provides an electric arc spraying device, which relates to the technical field of electrical equipment manufacturing and comprises a stabilizing frame, a controller is externally mounted on the outer side of the stabilizing frame, a stabilizing plate is arranged on one side of the stabilizing frame, a fan is mounted above the stabilizing plate, a stabilizing rod is mounted above the stabilizing frame, and the stabilizing rod is connected with the controller. And a positioning frame capable of moving up and down is mounted on the outer side of the stabilizing rod. The stable vertical moving effect of the spraying body is achieved through the arrangement of the stabilizing rod and the positioning frame, the stable transverse moving effect of the spraying body is achieved through the arrangement of the sliding groove and the sliding block, the spraying body stably conducts electric arc spraying on a workpiece, and the problem that the workpiece is unstable during electric arc spraying is solved.

This invention discloses a short-process rapid solidification / powder metallurgy technology and its applications. The short-process rapid solidification / powder metallurgy technology of this invention includes the following steps: Step 1: Using metal wire or powder as raw material, a bulk blank with a thickness of 1-10 mm is deposited on a substrate using thermal spraying technology; the metal is selected from magnesium, titanium, copper, iron, nickel, zinc, aluminum, or their alloys; Step 2: The bulk blank is thermomechanically processed to obtain a sheet product; the thermal spraying technology includes flame spraying, supersonic spraying, arc spraying, plasma spraying, or cold spraying; the thermomechanical processing includes hot rolling, hot extrusion, or hot forging. This invention significantly shortens the preparation process, consumes less energy, has low overall production costs, and has wide applicability, and can be applied to the preparation of metal matrix composites, ultrafine-grained metal materials, heterostructure metal materials, layered structure metal composites, etc.

The preparation method comprises the following steps that the neodymium-iron-boron permanent magnet is pretreated, an aluminum-based alloy coating is deposited on the surface of the pretreated neodymium-iron-boron permanent magnet through electric arc spraying, and the neodymium-iron-boron permanent magnet is obtained through vacuum heat treatment and hole sealing agent coating. Wherein the temperature of the vacuum heat treatment is 400-600 DEG C, and the neodymium-iron-boron permanent magnet surface anti-corrosion coating is obtained. According to the neodymium-iron-boron permanent magnet surface anti-corrosion coating, by constructing a composite protection system of the metallurgical bonding diffusion layer (bottom layer), the Al sacrificial anode protection layer (middle layer) and the hole sealing agent barrier layer (surface layer), the bonding strength and the anti-corrosion performance of the neodymium-iron-boron permanent magnet surface anti-corrosion coating can be greatly improved; the method has important industrial value for prolonging the service life of the neodymium-iron-boron magnet in a severe environment and widening the application scene of the neodymium-iron-boron magnet.

The utility model discloses a short-time withstand current test device applied to the technical field of electrical fault detection, and the device can detect whether a contact of a circuit breaker is damaged or not through a damage detection device, also can detect whether the arc spraying phenomenon occurs in the circuit breaker or not, and records the borne maximum current if one of the two conditions occurs, so as to achieve the purpose of testing the short-time withstand current. If the two conditions do not occur, the current is increased, the circuit current continues to be output until the tolerance limit of the circuit breaker is tested, meanwhile, through the peak tolerance test module, the kinetic energy of a load in the circuit can be detected and recorded after the current is output, so that the peak current tolerance capacity of the circuit breaker is obtained, and in addition, a partition plate is matched, so that the reliability of the circuit breaker is improved. The wind plate can be driven to rotate in different directions by using the driving force of gas, so that a worker is helped to know the fault details of the tolerance test after bearing the maximum current in time, and the accuracy of the tolerance test result and the test efficiency are improved.

The utility model relates to the technical field of continuous casting machines, in particular to a continuous casting machine which comprises a steel ladle, a tundish, a crystallizer, a supporting roller way, a secondary cooling section, a withdrawal and straightening machine, a flame cutting machine and a transmission roller set. Each section of spraying device comprises a spraying frame, an inner arc spraying pipe, an outer arc spraying pipe, a left side arc spraying pipe and a right side arc spraying pipe; the inner arc spraying pipe, the outer arc spraying pipe, the left side arc spraying pipe and the right side arc spraying pipe each comprise a water pipe, an air pipe, a plurality of spraying connecting pipes and a plurality of aerial fog nozzles, and a water collecting ring and a gas collecting ring are arranged at the tail end of each section of spraying device. The multi-section spraying device is adopted for full water cooling, cooling spraying pipes of all sections are vertically arranged to form independent faces, water collecting rings are arranged on all the sections respectively, automatic adjustment of independent loops of all the sections is achieved, it is guaranteed that water on all the faces of the square billet cross section is evenly distributed, cooling uniformity is guaranteed, and the casting blank quality is improved.

The utility model belongs to cable bridge technical field especially relates to a railway power supply cable bridge, including bridge, the top of bridge is equipped with the protection cover through bolt fixing and installs, the whole bridge is connected by splicing piece through several groups of separate bridges, the surface of bridge and protection cover carries out arc spraying aluminum base composite coating processing. This railway power supply cable bridge, width adjusting mechanism can adjust the bridge width flexibly, lets the cable even laying, avoids extrusion wear and tear, promotes the cable life, its folding design can reduce the storage space still, reduces the transportation cost, and the support clamping plate can enhance the structural strength, the connecting mechanism is through the splicing plate rotation and circular arc structure and realizes the multi -angle adjustment and fixed, solves the traditional splicing angle limit problem, adapts to complex terrain, optimizes the layout of the line, avoids the cable damage, enhances the system coherence and stability.

The invention relates to the technical field of railway steel production, and particularly discloses a Si-RE synergistically modified electric arc spraying zinc-aluminum-magnesium coating steel rail and a preparation method thereof.The preparation method comprises the steps that the steel rail is pretreated, and a clean steel rail with the cleanliness and roughness meeting the requirements is obtained; alloy coating spraying is conducted on the clean steel rail, and a coated steel rail is obtained; rare earth zinc aluminum magnesium alloy wires are adopted for alloy coating spraying and comprise Al, Mg, Si, Ce, Ti and the balance Zn. By adding trace Si and Ce elements into the alloy coating, the density of the coating is increased, the porosity of the coating is effectively reduced, the hardness, wear resistance and corrosion resistance of the coating are enhanced, hole sealing treatment does not need to be conducted again, the process is environmentally friendly, the prepared alloy coating is low in surface porosity and has the self-repairing capacity, and the service life of the alloy coating is prolonged. The steel rail has high binding force and excellent corrosion resistance, the service life of the steel rail can be remarkably prolonged, and a powerful guarantee is provided for railway transportation safety.

The invention discloses a high-temperature wear-resistant gate valve production process which comprises the following steps: S1, selecting a base body material: adopting duplex stainless steel or nickel-based alloy as a valve body base body, and controlling the impurity content to be less than or equal to 0.01% through vacuum melting; s2, a coating is prepared, specifically, a nickel-chromium aluminum-coated composite coating is prepared on the surface of the base body through a plasma arc spraying technology; s3, sealing surface surfacing: surfacing cobalt-based alloy in a sealing surface area; s4, a heat treatment process is conducted, specifically, quenching and tempering quenching and tempering treatment are executed, water cooling is conducted after high-frequency induction heating is conducted to 900 DEG C in surface quenching, and then gas nitriding treatment is conducted; s5, structural design: a guide system adopts a ball screw to replace a traditional sliding shaft sleeve; the dynamic seal adopts a combined structure of a metal corrugated pipe and a graphite packing; a flow channel adopts a streamline design of CFD simulation optimization; and S6, machining and testing, wherein after rough machining and finish machining are conducted, an opening and closing test and a high-temperature steam test are conducted. The production process has the characteristics of wear resistance and high temperature resistance.

The utility model discloses a novel zinc supplementing device for a galvanized welded pipe, which relates to the technical field of photovoltaic support manufacturing and comprises a power supply control cabinet, a control button is mounted at the front end of the power supply control cabinet, a dustproof box is mounted at one end of the power supply control cabinet, an arc spray gun is mounted at the upper end of the dustproof box, and a spray gun nozzle is mounted at one end of the arc spray gun. And a wire feeding pipeline is mounted at one end of the arc spray gun. Through the arrangement of the power supply control cabinet, the control button, the electric arc spray gun, the spray gun nozzle and the wire feeding pipeline, the zinc supplementing gun is erected right above a welded pipe, two zinc wires penetrate into the wire feeding pipeline at the same time, the power supply control cabinet is started, electric arcs are generated through electricity to serve as a heat source, the metal wires are melted, and compressed air is used for atomization and cooling; metal wires needing to be sprayed are blown into fine particles, the fine particles are sprayed to the surface of a weld bead of a welded pipe at a high speed, the wire feeding pipeline can feed two metal wires at the same time, the zinc spraying amount is large, the zinc spraying efficiency is improved, and the structure is a high-efficiency and low-energy-consumption product.

This invention relates to the field of pet fresh food production equipment technology, and more particularly to a liquid addition and mixing device for pet fresh food production. The device includes a tank, with a protective cylinder installed at the top of the tank's inner cavity. An addition mechanism is installed inside the protective cylinder, comprising a storage tank fixedly mounted on the top of the tank. A conveying pipe is fixedly mounted at the bottom of the storage tank, and a conveying hose is fixedly mounted on the top of the tank's inner cavity. The conveying pipe is connected to the conveying hose, and a feed pipe is fixedly mounted on the top of the tank. By controlling the reciprocating rotation of the first bevel gear, this invention allows the entire spray head to oscillate reciprocally, resulting in a circular arc spray path for the liquid. This ensures that each serving of fresh food is evenly contacted with the liquid, thereby guaranteeing consistent nutritional content, flavor, and moisture content, meeting the core requirements of balanced nutrition in pet food.

The utility model discloses an intelligent nonlinear current-limiting direct lightning protection device, which belongs to the field of direct lightning protection and comprises a current-limiting lightning rod, a multi-gap assembly and a lightning current measuring assembly. By arranging the multi-gap assembly on the current-limiting lightning rod, when the lightning current exceeds the through-current capability of the current-limiting lightning rod, the lightning current is conducted and reduced through the main gap and the multiple gaps on the multi-gap assembly; under the action of the current-limiting lightning rod, the main discharge time of lightning is prolonged from microsecond level to millisecond level, and when the lightning flows through too many gaps, a radial arc spraying effect is generated to further prolong the main discharge time of lightning, so that the lightning waves are changed from continuous waves to discontinuous waves, flashover of the current-limiting lightning rod is avoided, and damage of lightning current to the rod body is avoided; the direct lightning protection device has a self-protection capability; by arranging the lightning current measuring assembly, the system has intelligent functions of lightning current data measurement and transmission, and lightning big data is formed to provide support for follow-up research, product improvement, customer demand meeting and the like.

The application discloses a titanium alloy ingot aluminum layer coating equipment based on arc spraying, which comprises a trolley assembly, a size measurement sensor, a main control system, a motion mechanism and an arc spraying system, wherein the main control system contains a path automatic planning module, can automatically solve a control sequence containing a circumferential surface spiral pitch, an end surface spraying track and a swing angle instruction, an interlayer intersection strategy, and can coordinate and command the XYZ motion mechanism, the trolley supporting roller rotating speed and the arc ignition matching operation according to the control sequence, so as to deposit a pure aluminum anti-oxidation layer on the surface; the XYZ motion mechanism is controlled by the main control system, carries each spraying gun assembly to realize the pose transformation in the three-dimensional space; and the arc spraying system is carried by the motion mechanism and executes the coating task. The application has the advantages of high production efficiency, good coating uniformity, strong consistency between the end surface and the circumferential surface coating, fast and convenient multi-specification change, precise and stable spraying distance and spraying angle control, and whole-process traceability.

The utility model discloses a novel arc spray gun which comprises a gun body, a wire feeding pipe and an air pipe. The gun body is divided into a main body and two auxiliary bodies, the main body and the auxiliary bodies of the gun body are fixed through screws, holes are symmetrically formed in the interfaces, and cylindrical through holes are formed in the middles of the holes. The wire feeding pipe and the spherical positioning piece are welded into a whole, and the outer diameter of the spherical positioning piece is slightly larger than the inner diameter of the spherical cavity. The interface aperture is greater than the outer diameter of the wire feeding pipe; the wire feeding pipe, the positioning ball piece and the contact tube assembly are arranged in the cylindrical through hole and the spherical cavity. In this way, in the using process, the main body and the auxiliary body can be separated first, the angle between the wire feeding pipe and the cylindrical through hole is adjusted, in the adjusting process, the spherical positioning piece concentrically rotates relative to the spherical cavity and can play a positioning role, the screw is locked after the two wires are completely aligned, and therefore it can be guaranteed that in the whole spraying process, the wire feeding pipe is not prone to falling off. The stability of equipment operation and the quality of a coating are improved.

The utility model relates to a structure for suppressing flashover, which is arranged in an electric arc deionization area in front of an air outlet of an arc extinguish chamber and comprises a plurality of deionization units arranged at certain intervals along the air outlet direction. Wherein the deionization unit closest to the gas outlet is provided with a porous structure, and the adjacent deionization unit is provided with a space blocking structure; the space blocking structure comprises an air blocking plate assembly for blocking airflow from flowing in the air outlet direction, and the air blocking plate assembly comprises an air blocking plate for enabling part of the airflow to generate reverse flow. Compared with the prior art, by adopting the internal and external multiple deionization units, the purpose of multiple arc suppression is achieved, the creepage path and distance of the arc are increased, and the insulation effect of the arc spraying opening is improved; the arc ejection speed is slowed down through the deionization unit with the space blocking structure, the arc energy is reduced, and the arc is restrained through the deionization unit with the porous structure.

1. The name of the design product: curved arc spray gun. 2. The use of the design product: for bathing, washing and gardening spraying. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 2.

The invention relates to an anti-corrosion construction method for an offshore wind power foundation, belongs to the technical field of ocean engineering anti-corrosion, and solves the technical problem that the anti-corrosion service life of a foundation structure cannot meet the design requirement of a wind power plant due to the fact that a traditional single coating system is prone to early failure, pitting corrosion and stripping in a severe ocean environment, especially in a splash zone and a tidal range zone. The method comprises the following steps: carrying out sand blasting treatment on the outer surface of the steel structure until the cleanliness is Sa2.5 level and the roughness Ry is 60-100 microns; spraying a zinc-aluminum alloy bottom layer containing repairing microcapsules in the splash zone and the total immersion zone in an electric arc manner; coating an epoxy micaceous iron interlayer added with 0.5-1.5% of functionalized graphene oxide, wherein the thickness of the epoxy micaceous iron interlayer is 300-450 [mu] m; and finally, coating a fluorocarbon resin or polysiloxane surface layer, and scanning and curing by adopting intense pulsed light at the energy density of 5-15J / cm and the pulse width of 1-5ms. The method is mainly used for improving the long-term protection performance and prolonging the service life of the offshore wind power foundation structure in the corrosion environment.