14results about "Electric arc spraying" patented technology

The invention provides a pipeline electric arc spraying robot. The pipeline electric arc spraying robot comprises a machine shell, a walking supporting mechanism, a spraying assembly, a reducing mechanism and a driving mechanism. The spraying assembly is arranged at the rear end of the machine shell and used for forming a metal coating on the inner wall of the pipeline through electric arc spraying. The walking supporting mechanism comprises three sets of walking supporting assemblies which are evenly distributed on the periphery of the machine shell at 120-degree intervals. The diameter changing mechanism comprises three sets of self-adaptive diameter changing assemblies which correspond to the three sets of walking supporting assemblies one to one and are evenly arranged, each set of self-adaptive diameter changing assembly is connected with the corresponding set of walking supporting assembly, and the driving mechanism is installed in the machine shell and connected with the diameter changing mechanism. The reducing mechanism can be controlled by the driving mechanism to drive the three sets of walking supporting assemblies to move in the radial direction relative to the machine shell so as to adapt to the change of the pipe diameter of the pipeline, and each set of self-adaptive reducing assembly comprises a first reducing assembly and a second reducing assembly. Through coordination and cooperation of an active mode and a passive mode of the reducing mechanism, good pipeline self-adaptive capacity is achieved.

A process and spraying equipment for arc spraying carbon steel pipes. The process includes the following steps: S1: installing a raw metal wire(13) on a wire feeder(12), adjusting the wire feeding voltage according to the required thickness of spraying, and adjusting the spraying current according to the material of the raw metal wire(13); S2: spraying inner and outer walls of the pipe through an inner wall spray gun(14) and an outer wall spray gun(16); S3: after the pipe being sprayed, cooling it naturally to room temperature; S4: putting the cooled pipe into a heating furnace, adjusting the heating temperature according to the required surface alloy thickness, and cooling it in the furnace or natural cooling outside the furnace after the insulation is completed; meanwhile, the surface alloy layer is formed on the inner and / or outer wall of the carbon steel pipe; S5: after the pipe being cooled to room temperature, using a medium frequency heat treatment equipment to heat-treat the pipe through the heat treatment process.

A gun body for an electric spray gun with an amplitude adjustment structure positioned on top, comprising a gun body, a material container, a nozzle assembly, and a material needle. The gun body includes a first channel, a second channel, a third channel, and a coating channel, with an amplitude adjustment assembly installed on the gun body. The nozzle assembly has a primary atomization channel and a secondary atomization channel. The primary atomization channel, and the interior of the material container, while the third channel is connected to the coating channel. The amplitude adjustment assembly controls the communication between the first and second channels and adjusts the gap size between them. The gun body not only allows switching between circular and elliptical spray patterns but also controls the gap size between the first and third channels during the rotation of the amplitude adjustment knob.

An applicator for electrostatic deposition of dry powder on a grounded continuous moving electrically conductive web is provided that includes a powder feeding system, at least one powder dispenser, an electrostatic deposition chamber, and at least one wire electrode in the electrostatic deposition chamber. An opening of a powder dispenser outlet is arranged along the latitude of the electrically conductive web, and the ratio of the width of the outlet opening and the coating width of the web is in the range of 0.25-1.0. The powder dispenser has a defined angle relative to the web and a vertical distance between the powder dispenser outlet and the web. The first wire electrode generates a corona discharge zone with a radius and have a vertical distance between the web.

The application belongs to the technical field of coating, and in particular to a high-temperature alloy forge piece surface coating protection device and method, which solves the problems of low artificial feeding and discharging efficiency, harm to the health of workers, difficult spraying control and poor treatment of harmful gas; the device has a protection cover and a base on the workbench, a thimble is arranged in the base, and a driving structure is arranged in the workbench; in the feeding structure, the hydraulic cylinder II drives the arc-shaped supporting plate to lift, and cooperates with the shift rod I, the lifting plate, the baffle I and the like to realize feeding of the forgings one by one; the discharging structure drives the connecting plate and the rack through the arc-shaped supporting plate to make the shift rod II rotate, and the forgings are pried to the discharging inclined plate to be discharged; in the spraying structure, the electric arc spraying gun can adjust the distance from the forgings, and the distance sensor detects the distance and the coating thickness; the protection cover is provided with an exhaust pipe and an air suction cover to absorb harmful gas.

An apparatus (200) for in-situ application of an engineering coating (52) to one or more components (50). The apparatus has a head section (300) adapted to selectively apply the engineering coating (52) to the components (50). The head section (300) has an applicator end (302) and a coupling end (304) opposite to the applicator end (302). The apparatus has a body section (400) coupled to the head section (300) at the coupling end (304) and adapted to actuate the head section (300). The body section (400) has a first stage actuator (402) adapted to actuate the head section (300) to swivel about a first axis (X-X') and a second stage actuator (404) adapted to actuate the head section (300) and the first stage actuator (402) together to rotate about a second axis (Y-Y'). The second axis (Y-Y') is orthogonal to the first axis (X-X'). The apparatus has one or more gas channels (500) provided along the body section (400) to the head section (300).

The application belongs to the technical field of electrode spraying, in particular to an electrode spraying device, which comprises a base and two groups of chains, a support is fixedly installed on the base, two groups of transmission shafts are rotatably installed in the support, two groups of sprockets are installed on each group of transmission shafts, each group of chains meshes with the two groups of sprockets, a plurality of groups of chain plate assemblies are distributed on the outer circle of the chains, a mounting rack and a drying box are sequentially fixedly installed on the support, two groups of electric arc spraying guns are fixedly installed on the support, and a driving shaft is rotatably installed at one end of the support, the chain plate assembly comprises a plate body, the plate body is fixedly connected with two groups of chains at both ends, the driving shaft is rollingly connected with the plate body, a rotating seat is rotatably installed on the plate body, a placing rod is fixedly installed on the rotating seat, and four groups of supporting feet are installed on the outer circle of the placing rod at equal angles; the two groups of electric arc spraying guns are used to spray the mesh electrode body, and the drying box is used to dry the mesh electrode body, so that the spraying efficiency of the mesh electrode body is improved.

An applicator for electrostatic deposition of dry powder on a grounded continuous moving electrically conductive web is provided that includes a powder feeding system, at least one powder dispenser, an electrostatic deposition chamber, and at least one wire electrode in the electrostatic deposition chamber. An opening of a powder dispenser outlet is arranged along the latitude of the electrically conductive web, and the ratio of the width of the outlet opening and the coating width of the web is in the range of 0.25-1.0. The powder dispenser has a defined angle relative to the web and a vertical distance between the powder dispenser outlet and the web. The first wire electrode generates a corona discharge zone with a radius and have a vertical distance between the web.

To provide an electrostatic atomizer having good atomization effect.SOLUTION: An atomizer 100 includes a cooling chip 110, a discharge electrode 120, a heat sink 130, and a counter electrode 140. The discharge electrode includes: a first side S1 and a second side S2 facing each other; and a plurality of first tips 121 located at the first side. The second side is connected to the cooling chip. The cooling chip is located between the heat sink and the discharge electrode. The counter electrode is disposed spaced apart from the discharge electrode and includes a plurality of second tips 142. The second chips and the first tips face each other.SELECTED DRAWING: Figure 2

The application belongs to the technical field of plasma spraying, and specifically discloses a plasma paint spraying processing machine electrical equipment, which comprises a shell structure and a multi-axis mechanical arm arranged in the shell structure, the output end of the multi-axis mechanical arm is connected with a mounting shell, the output end of the mounting shell is threadedly connected with a spray pipe, the outer part of the spray pipe is movably connected with a gas collecting shell, a gas injection hole is formed in the part of the gas collecting shell close to the working end of the spray pipe, the gas outlet direction of the gas injection hole and the gas outlet direction of the spray pipe form an acute angle, meanwhile, the gas outlet speed of the gas injection hole is greater than the gas outlet speed of the spray pipe, and a flow guide pipe is embedded in the interior of the spray pipe, the flow guide pipe is a tubular structure with a small inner diameter in the middle part and large inner diameters at both ends. The high-speed air curtain is used for realizing fine atomization, reducing splashing loss, enhancing the anti-interference ability of the jet flow, and having the flexible adjustment function of the spraying parameters, so that the uniformity of the coating, the material utilization rate, the environmental cleanliness and the process adaptability are comprehensively improved.

The present invention relates to the field of surface alloy pipe manufacturing, and provides a process and spraying equipment for arc spraying carbon steel pipes. The process includes the following steps: S1: installing a raw metal wire on a wire feeder, adjusting the wire feeding voltage according to the required thickness of spraying, and adjusting the spraying current according to the material of the raw metal wire; S2: spraying an inner and outer walls of the pipe through an inner wall spray gun and an outer wall spray gun; S3: after the pipe being sprayed, cooling it naturally to room temperature; S4: putting the cooled pipe into a heating furnace, adjusting the heating temperature according to the required surface alloy thickness, and cooling it in the furnace or natural cooling outside the furnace after the insulation is completed; meanwhile, a surface alloy layer is formed on the inner and / or outer wall of the carbon steel pipe; S5: after the pipe being cooled to room temperature, using a medium frequency heat treatment equipment to heat-treat the pipe through the heat treatment process. The present invention solves the problems that the existing arc spray equipment cannot spray the inner wall of the pipe, and the spray coating has poor bonding force with the pipe body and is easy to fall off. It greatly improves the wear resistance, high temperature resistance and anti-corrosion performance of the inner and outer wall surfaces of the pipe, and increases the pipe life.

To provide an electrostatic atomizer having good atomization effect.SOLUTION: An atomizer 100 includes a cooling chip 110, a discharge electrode 120, a heat sink 130, and a counter electrode 140. The discharge electrode includes: a first side S1 and a second side S2 facing each other; and a plurality of first tips 121 located at the first side. The second side is connected to the cooling chip. The cooling chip is located between the heat sink and the discharge electrode. The counter electrode is disposed spaced apart from the discharge electrode and includes a plurality of second tips 142. The second chips and the first tips face each other.SELECTED DRAWING: Figure 2

This disclosure provides an apparatus, system, and method for thermal spraying a metal cladding on a substrate. The apparatus may include a housing having a first electrode and a second electrode disposed in the housing. The second electrode can be spaced apart from the first electrode. The apparatus includes a first contact tip removably attached to the first electrode and a second contact tip removably attached to the second electrode. The position of the first contact tip and second contact tip is configured to be selectively adjusted on the first electrode and the second electrode to provide a plurality of contact surfaces for a feedstock wire. The apparatus includes a nozzle between the first contact tip and the second contact tip. The first contact tip and the second contact tip are configured to contact and deflect a wire towards the nozzle.

The invention belongs to the technical field of coating, particularly relates to a high-temperature alloy forge piece surface coating protection device and method, and solves the problems that manual feeding and discharging are low in efficiency, the health of workers is harmed, spraying control is difficult, and harmful gas treatment is poor. A protective cover and a base are arranged on a workbench of the device, an ejector pin is arranged in the base, and a driving structure is arranged in the workbench; in the feeding structure, a hydraulic cylinder II drives an arc-shaped supporting plate to ascend and descend, and forgings are fed one by one in cooperation with a shifting rod I, a lifting plate, a baffle I and the like. The discharging structure drives a connecting plate, a rack and the like through an arc-shaped supporting plate to enable a shifting rod II to rotate, and the forgings are pried to a discharging inclined plate to be discharged. In the spraying structure, the distance between an electric arc spraying gun and a forge piece can be adjusted, and a distance sensor detects the distance and the coating thickness; the protective cover is provided with an exhaust pipe and an air suction cover to absorb harmful gas.