EP3047914B1 - Installation et procédé de revêtement métallique d'une pièce - Google Patents

Installation et procédé de revêtement métallique d'une pièce Download PDF

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Publication number
EP3047914B1
EP3047914B1 EP15155744.4A EP15155744A EP3047914B1 EP 3047914 B1 EP3047914 B1 EP 3047914B1 EP 15155744 A EP15155744 A EP 15155744A EP 3047914 B1 EP3047914 B1 EP 3047914B1
Authority
EP
European Patent Office
Prior art keywords
coating
receiving unit
nozzle
lance
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15155744.4A
Other languages
German (de)
English (en)
Other versions
EP3047914A1 (fr
Inventor
Andreas Ebenbeck
Gerhard Aufschläger
Marc Kesting
Ralf VÖLLINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sturm Maschinen und Anlagenbau GmbH
Original Assignee
Sturm Maschinen und Anlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sturm Maschinen und Anlagenbau GmbH filed Critical Sturm Maschinen und Anlagenbau GmbH
Priority to EP15155744.4A priority Critical patent/EP3047914B1/fr
Priority to PCT/EP2016/050780 priority patent/WO2016116368A1/fr
Publication of EP3047914A1 publication Critical patent/EP3047914A1/fr
Application granted granted Critical
Publication of EP3047914B1 publication Critical patent/EP3047914B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0242—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the objects being individually presented to the spray heads by a rotating element, e.g. turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68—Arrangements for adjusting the position of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc

Definitions

  • the invention relates to a plant for the metallic coating of a workpiece with a coating apparatus having a movable coating lance, through which a metal plasma jet for forming a coating of metal particles can be generated, and a nozzle device for generating a jet of a cooling gas, according to the preamble of Claim 1.
  • the invention further relates to a method for the metallic coating of a workpiece, wherein a metal plasma jet is produced by a movable coating lance of a coating apparatus, by means of which a coating of metal particles is formed on a workpiece, according to the preamble of claim 14.
  • the WO 2004/005575 A2 describes a generic device and a generic method in which a nozzle device for generating a jet of a cooling gas is additionally arranged on the movable coating lance.
  • the EP 282 93 27 A1 discloses a method for cleaning a burner of a plasma coating installation, in which the burner is subjected to a cleaning agent emerging from a cleaning nozzle during a coating interruption, and so that sprayed-particle particles adhering to the burner are removed.
  • overspray Due to a certain scattering of the metal plasma jet, not all metal particles reach the bore wall and remain there. These non-deposited metal particles are referred to as overspray. This overspray can also lead to undesirable coatings on the coating lance itself, which over time adversely affects the function of the coating lance.
  • the invention has for its object to provide a system and a method for the metallic coating of a workpiece, with which impairments of the coating lance can be counteracted by the overspray particularly reliable.
  • a basic idea of the system according to the invention is to provide a cleaning station with which unwanted false coatings on the coating lance are removed. According to the invention, this takes place at certain times. These can be times at fixed cleaning intervals or Timings, which are determined depending on the degree of contamination by an operator or a control device.
  • the cleaning station is provided with a nozzle device, through which a nozzle jet is directed onto the coating lance.
  • a jet of a cleaning medium is generated, which removes the deposited on the top of the coating lance metal particles.
  • a preferred embodiment of the invention is that the nozzle device has at least one outlet nozzle, which is connected to a compressed gas container.
  • This compressed gas container is in particular filled with the cleaning medium.
  • various cleaning media can be used to remove the deposits.
  • the jet of CO 2 is formed, which emerges as CO 2 snow from the nozzle device.
  • This cleaning medium acts in two ways, namely on the one hand mechanically by the impact of the frozen ice particles on the surface of the coating lance and on the other hand by thermal stress. Because of the CO 2 snow, which strikes the surface of the coating lance with the adhering metal particles, the metal particles are strongly cooled, which promotes spalling or loosening of the metal particles from the surface of the coating lance or effect.
  • the outlet nozzle can be provided in any desired arrangement.
  • a plurality of outlet nozzles can be arranged along the circumference of the rod-shaped, usually cylindrical coating lance.
  • the at least one outlet nozzle has an elongate outlet slot which is directed parallel to the longitudinal axis of the coating lance.
  • an elongated jet can be generated, which is directed approximately parallel to the coating lance.
  • the coating lance is rotated about its longitudinal axis so that the jet of the jet covers the entire surface of the coating lance can cover in a peripheral area. For a particularly thorough cleaning, a multiple circulation can take place.
  • a control device for controlling the jet is arranged.
  • the control device is provided with a throttle valve, through which the jet is controllable.
  • the pressure and / or the volume flow of the jet can thus be adjusted in the desired manner.
  • a development of the invention consists in that the coating device has an exchangeable annular receiving unit which surrounds the coating lance in an annular manner and is designed to deposit metal particles, and in that the cleaning station is designed to change the receiving unit.
  • the ring-shaped or drum-shaped receiving unit surrounds the coating lance in a retracted traversing position, wherein the receiving unit can be moved together with the coating lance between different processing points.
  • metal particles of the metal plasma jet can be picked up during the process of the coating lance in the movement position or even during the process.
  • the plasma jet can thus be operated in an efficient manner without interruption in the process.
  • the receiving unit avoids excessive overspray.
  • the drum-shaped receiving unit can be changed at certain times in the cleaning station. Preferably, this can be done at each cleaning or only at certain cleaning times or depending on the level or weight of the receiving unit.
  • a sensor may be mounted, which determines the level or the weight.
  • the reaching of a threshold value can be determined, so that then a replacement is caused.
  • a further preferred embodiment of the invention is that the receiving unit is held by means of a quick-release device on the coating device that the quick-release device is detachable in the cleaning station, wherein the receiving unit is removable and replaceable by a new receiving unit, and that the new receiving unit by operating the Quick clamping device can be attached to the coating device.
  • the quick-release device may in particular be a strap closure or another locking mechanism which can be easily detached and closed again. Basically, this can be done by hand by an operator.
  • a preferred embodiment of the invention is that the receiving unit is at least partially replaceable by means of an automatic handling device.
  • the entire change process can be performed automatically. This is particularly advantageous in mass production.
  • the quick-clamping device can be provided with motor-actuated or electromagnetically actuated locking elements. After releasing the drum-shaped receiving unit is removed approximately by a handling robot from the cleaning station, at the same time a new receiving unit is arranged and connected to the moving part of the coating device.
  • the cleaning station has a support element for depositing the receiving unit and that below the support element, the nozzle device is provided for cleaning the coating lance.
  • the cleaning station may have a sleeve-shaped receiving space, at the upper end of which an annular support plate is attached as a support element.
  • the nozzle device is provided, so that the coating lance can be cleaned by the nozzle device, while the receiving unit rests on the annular support element and can be changed.
  • a suction device is provided, through which removed during cleaning metal particles are sucked from the coating lance.
  • air can be sucked out of the process chamber downwards via the suction device from the sleeve-shaped receiving space with the nozzle device. This allows the leaked CO 2 snow or the vaporized CO 2 gas is sucked and removed from the cleaning station together with the removed metal particles.
  • the suction device may be coupled and connected to a central suction device, which also provides for the extraction of overspray during the coating or the process on the coating lance.
  • the receiving unit is formed annularly with an outer base body and an inner receiving layer which is detachably attached to the base body.
  • the outer body is formed as a simple pipe segment made of steel. This serves as a supporting body for the receiving layer provided on the inside, on which the metal particles accumulate.
  • the receiving layer may have a thickness of between 0.1 millimeters to several millimeters. Due to the detachable mounting of the receiving layer on the base body, the receiving layer with the deposited metal particles can be easily removed, so that the thicker base body can be reused by applying a new recording layer.
  • a preferred embodiment of the invention consists in that the receiving layer is formed from a metal sheet or a plastic material, in particular silicone.
  • the receiving layer can therefore be a rigid body, which is inserted into the base body and secured therein.
  • the fastening can take place via radial projections or fastening means, in particular screws.
  • the receiving layer can also be applied directly to the inside of the base body, in particular sprayed on.
  • plastic material can be used, wherein silicone is preferred due to the high temperature resistance.
  • the receiving layer can be elastic, so that it can be easily detached from the outer sleeve-shaped base body.
  • the outer base body for releasing the inner receiving layer in its shape is changeable, in particular divisible.
  • the main body can be constructed in particular of two or more parts, which via connecting means or joints connected to each other. In a two-part body this can be constructed of two half-shells, which can swing apart.
  • the invention is characterized in that the coating lance is moved into a cleaning station for cleaning, that in the cleaning station a jet of a cooling gas is directed by means of a nozzle device on the coating lance, wherein deposited metal particles are removed from the coating lance, and that the jet is controlled by a control device by means of a throttle valve.
  • the system described above can be operated and the advantages achieved thereby achieved.
  • the listed metal particles are particles from the plasma jet. These metal particles may comprise pure metals, alloys or metal oxides.
  • FIGS. 1 to 4 An inventive system 10 for the metallic coating of holes 3 in a workpiece 1 is in FIGS. 1 to 4 shown.
  • the workpiece 1 is in the illustrated embodiment, an engine block with 12 holes 3, which are arranged as cylinder bores in two rows of six in V-shape in the workpiece 1.
  • the system 10 has a machine bed 11 on which a housing 13 is arranged.
  • the box-shaped housing 13 encloses a loading station 12 and a processing station 14 with a coating device 29.
  • a base frame 16 of a conveyor 20 is arranged, which is formed in the illustrated embodiment as a turntable 22.
  • the rotatable about a vertical axis of rotation driven horizontal turntable 22 has two opposite workpiece holders 23, in each of which a plate-shaped pallet module 21, each with a workpiece 1 is receivable. Via a pivoting device 26, the pallet module 21 can be pivoted with the workpiece 1 relative to the horizontal, so that the holes 3 in the workpiece 1 can be arranged vertically to carry out a metallic coating.
  • the workpiece 1 is received at the loading station 12 by a feed device, not shown.
  • the housing 13 has in the region of the charging station 12 an opening, not shown, with a door. Furthermore, a measurement of the workpiece 1 can take place in the area of the paint station 12. Subsequently, the turntable 22 is rotated by 180 °, wherein the workpiece 1 is conveyed from the loading station 12 to the opposite processing station 14.
  • the processing station 14 is separated from the charging station 12 via a partition wall 24. In Fig. 2 the partition 24 is only partially shown in the lower area. However, the partition 24 extends through the entire space of the housing 13, so that the processing station 14 is sealed off from the charging station 12.
  • two passages 25 are provided to pass the workpieces 1 from the loading station 12 to the processing station 14 and back again.
  • the passages 25 are each closed by a sliding closure element 27, which can be opened for the passage of the workpiece 1 and then closed again.
  • the workpiece 1 is pivoted with the pivoting device 26 about a horizontal pivot axis, wherein in each case a series of holes 3 is aligned vertically, as shown in FIGS FIGS. 1 to 4 is apparent.
  • a coating device 29 with a rod-shaped coating lance 30 is provided, which has at its lower end at least one outlet opening 32 for a metal plasma jet.
  • the metal plasma jet is generated in a known manner by a plasma generator with a cathode and a metallic anode. By means of a correspondingly high electrical voltage, an arc is formed between the cathode and the anode, by means of which the metallic anode is melted.
  • the metallic anode is designed as a feedable wire, so that there is always sufficient material to form a metal plasma jet with the molten metallic particles.
  • a supply of powder may be provided instead of a wire.
  • a gas stream is generated, which emerges at supersonic speed from the outlet opening 32 at the lower end of the coating lance 30 approximately horizontally.
  • the coating lance 30 is retracted with the outlet opening 32 in the bore 3 to be coated in the workpiece 1.
  • the coating device 29 further comprises a sleeve-shaped suction bell, which surrounds the coating lance 30, but in the FIGS. 1 to 4 for reasons of clarity is not shown.
  • a portal device 40 with two parallel first track axes 41 is provided.
  • a frame-like first carriage 47 is mounted horizontally movable.
  • the first traversing carriage 47 itself has two linear, horizontal second traverse axes 42, which are arranged parallel to one another and perpendicular to the first traverse axes 41.
  • a beam-shaped second carriage 48 is arranged horizontally movable.
  • the second carriage 48 itself has a single vertical third travel axis 43.
  • a receiving carriage 45 is mounted vertically movable.
  • the coating lance 30 is rotatably supported.
  • the coating lance 30 of the coating device 29 is retracted into a first bore 3 to be coated in the workpiece 1.
  • the continuously operated coating lance 30 generates a metal plasma jet which impinges on a bore wall of the bore 3 at supersonic speed.
  • the receiving unit receives the particles of the metal plasma jet and is moved together with the coating lance 30 to the next hole to be coated 3. Then, the metallic coating is repeated at this second bore 3, wherein a corresponding coating of the further bore 3 in a row of the workpiece 1 connects.
  • the workpiece 1 can be pivoted about the pivoting device 26 about a horizontal axis, so that the second row of the engine block is arranged for processing in the vertical position. Then, a coating of these six holes 3 in the engine block-like workpiece 1 can join.
  • the coating lance 30 is retracted with the portal device 40 and the finished coated workpiece 1 can be fed back with the simultaneous feed of a new workpiece to be machined 1 in the charging station 12 through the right passage 25.
  • the closure element 27 is opened at the passage 25.
  • a new workpiece 1 is conveyed from the loading station 12 into the processing station 14 through the opened left passage 25 with the rotary movement of the turntable 22.
  • the layer thickness and contour of the applied coating can be measured.
  • the still uncoated holes 3 of a newly supplied workpiece 1 can be measured in advance, so that even more accurate testing of the performed coating by comparing the measurement data is possible.
  • the coated workpiece 1 can then be removed from the workpiece holder 23 of the turntable 22 in the loading station 12. Thereafter, a new workpiece 1 in the workpiece holder 23 of the conveyor 20 can be used.
  • the loading and unloading can take place parallel to the machining of a workpiece 1 in the processing station 14 and thus neutral to the machine main time. This allows efficient machine use.
  • the coating lance 30 can be moved at certain time intervals to a test station 54 for checking the jet pattern of the metal plasma jet or to a cleaning station 60, which hereinafter with the FIGS. 8 to 10 will be described in more detail.
  • a coating device 29 for a metallic coating system 10 according to the invention is substantially in the FIGS. 5 to 7 shown.
  • the coating device 29 has a rod-shaped coating lance 30, which is basically known and produces a metal plasma jet.
  • the shaft-shaped coating lance 30 with an associated base unit 31 is mounted on a receiving carriage 45 which is movable in a vertical direction along a lance guide 34 by means of a lance linear drive 33 with respect to a base carriage 28.
  • the coating lance 30 is rotatably mounted about its vertical longitudinal axis and driven to coat an inner wall of a cylinder bore with a radially directed metal plasma jet.
  • the coating device 29 further comprises a suction bell 80, which is movably mounted by means of a bell carriage 35 in the vertical direction and parallel to the direction of travel of the receiving carriage 45.
  • a suction bell 80 which is movably mounted by means of a bell carriage 35 in the vertical direction and parallel to the direction of travel of the receiving carriage 45.
  • two rail-like bell guides 36 are arranged on the base carriage 28, with which the bell carriage 35 is in leading connection via sliding shoes.
  • a linear displacement is effected by means of a linear drive.
  • the base carriage itself is movably mounted in a plurality of directions relative to the machine bed 11 of the installation 10 via the portal device 40 described above.
  • a cylindrical or drum-shaped cover 82 is attached on the frame-like bell carriage 35 of the suction bell 80.
  • the cover 82 is made of sheet metal and mounted in a holding frame 81 which is fixed to the bell carriage 35.
  • the cover 82 has a cylindrical wall 83, which is closed at its top by a cover plate 84.
  • the cover plate 84 is designed in two parts and has a central passage opening 85 for the passage of the coating lance 30.
  • a discharge opening 96 is introduced, via which from the interior of the cover 82 in operation ambient air, which is loaded with metal particles, via a ventilation duct 98 by means of a suction device, not shown, in particular a pump, sucked off and discharged to a filter device can.
  • the cover plate 84 is detachably mounted and can be removed to influence the flow conditions.
  • the cover 82 On its underside, the cover 82 is closed by an annular base plate 86 which removably fastened in the present embodiment three quick-release devices 90 to a lower annular strut 87 of the holding frame 81 is.
  • radially projecting hook elements 91 are provided on the radial outer edge of the base plate 86, which come into contact with a clamping yoke of the quick-action clamping device 90.
  • this has a central opening 88 along which an annular flange 92 is resiliently mounted on spring elements 93 and supported on the base plate 86.
  • the resilient mounting of the annular flange 92 serves a precise, flexible placement of the suction bell 80 on a workpiece.
  • the annular flange 92 has on its radial inside a conical surface 94 with an upward helix angle of about 30 degrees.
  • the drum-shaped receiving unit 70 has a base body 72 made of sheet metal, which comprises a cylindrical peripheral wall 74 made of a bent and welded sheet metal strip. At the upper end of the peripheral wall 74, an annular upper edge member 76 is welded. In a corresponding manner, an annular lower edge element 78 is welded to the lower end of the peripheral wall 74. Both edge elements 76, 78 are directed radially inwards and enclose an annular receiving space.
  • the coating device 29 can be moved with the coating lance 30 during a continuous operation of the metal plasma jet between the individual bores 3 of a workpiece 1 by the receiving unit 70 held replaceably in the suction bell 80.
  • the metal particles accumulate in the receiving unit 70 so that it fills with time.
  • the receiving unit 70 is to be detached from the suction bell 80 and replaced by a new receiving unit 70.
  • a cleaning station 60 is arranged in the processing station 14, which closer in the FIGS. 8 to 10 is shown.
  • the cleaning station 60 has a columnar frame 61, on which a sleeve-shaped housing body 62 is fastened with a perforated bottom 63.
  • a sleeve-shaped housing body 62 is fastened with a perforated bottom 63.
  • an annular support element 68 is arranged on the housing body 62 which is open at the top.
  • the coating lance 30 is moved down from the suction bell 80 and into the receiving space of the sleeve-shaped housing body 62 of the cleaning station 60 in this position.
  • a discharge nozzle 65 with an elongated discharge slot a nozzle jet of CO 2 snow is directed onto the peripheral region of the introduced coating lance 30 via a lateral nozzle device 64 on the housing body 62.
  • the jet is directed with an overpressure, which may be about 10 bar or more, so on the surface of the coating lance 30, that attached thereto metal particles are dissolved and removed.
  • the removed metal particles are discharged via a suction device, not shown, via the perforated bottom 63 down from the housing body 62.
  • the coating lance 30 is rotationally driven about its longitudinal axis and also moved in the axial direction. In this way, the nozzle jet of the nozzle device 64 can sweep and clean a desired area of the coating lance 30.
  • the receiving unit 70 in the suction bell 80 can be exchanged.
  • the quick-release devices 90 are released on the outside of the suction bell 80.
  • the coating device 29 is moved axially upwards, wherein the receiving unit 70 remains on the annular support element 68 of the cleaning station 60.
  • the filled receiving unit 70 can then be removed by an operator or by a handling device and be discharged from the system 10 via an opening, not shown, in the housing 13.
  • a new receiving unit 70 can be positioned in the cleaning station 60 on the support element 68.
  • the coating device 29 is again moved axially downward, until the new receiving unit 70 is received in the suction bell 80.
  • the quick-clamping devices 90 are closed again and the coating device 29 is again available for processing a further workpiece 1.
  • the sleeve-shaped receiving unit 70 has a two-part main body 72, which is formed from two half-shells 72a, 72b. On the inside of the main body 72, a sleeve or annular receiving layer 75 is attached, which is continuously formed as a sleeve.
  • the receiving layer 75 may be formed in particular from silicone.
  • the two half-shells 72a, 72b of the outer basic body 72 are held together by a schematically indicated connecting device 77.
  • the connecting device 77 By loosening the connecting device 77, the base body 72 is divisible, so that the sleeve-shaped receiving layer 75 is released from the inside of the base body 72. In this way, a receiving layer 75 covered with metal particles can be exchanged and replaced by a new receiving layer 75.
  • the base body 72 and the connecting device 77 can be closed again.
  • the Aufnaheech 70 can then be used again in the previously described Appendix 10.
  • the recording unit 70 according to FIG. 11 can be related as well as previously FIG. 7 described recording unit 70 may be provided with upper and / or lower edge elements.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (14)

  1. Installation de revêtement métallique une pièce (1) comportant :
    - un dispositif de revêtement (29), qui présente une lance de revêtement (30) pouvant être déplacée, par laquelle un jet de plasma métallique servant à former un revêtement composé de particules métalliques peut être généré, et
    - un système de buse (64) servant à générer un jet de buse à partir d'un gaz de refroidissement,
    caractérisée en ce que
    - une station de nettoyage (60) est prévue, vers laquelle la lance de revêtement (30) peut être déplacée à certains moments, et
    - le système de buse (64), par lequel le jet de buse est dirigé sur la lance de revêtement (30) aux fins de son nettoyage, est disposé dans la station de nettoyage (60),
    - un système de commande avec une soupape d'étranglement (66) est prévu, par lequel le jet de buse peut être commandé.
  2. Installation selon la revendication 1,
    caractérisée en ce que
    le système de buse (64) présente au moins une buse de sortie (65), qui est reliée à un réservoir de gaz sous pression.
  3. Installation selon la revendication 2,
    caractérisée en ce que
    l'au moins une buse de sortie (65) présente une fente de sortie allongée, qui est dirigée à peu près de manière parallèle par rapport à l'axe longitudinal de la lance de revêtement (30).
  4. Installation selon l'une des revendications 1 à 3,
    caractérisée en ce que
    le jet de buse est formé à partir de CO2, qui sort sous la forme de neige carbonique du système de buse (64).
  5. Installation selon l'une des revendications 1 à 4,
    caractérisée en ce que
    le dispositif de revêtement (29) présente une unité réceptrice (70) de forme annulaire pouvant être échangée, laquelle entoure la lance de revêtement (30) de manière annulaire et est réalisée pour accumuler des particules métalliques, et
    en ce que la station de nettoyage (60) est réalisée pour changer l'unité réceptrice (70).
  6. Installation selon la revendication 5,
    caractérisée en ce que
    l'unité réceptrice (70) est maintenue au moyen d'un système de serrage rapide (90) au niveau du dispositif de revêtement (29),
    en ce que le système de serrage rapide (90) est monté de manière amovible dans la station de nettoyage (60), l'unité réceptrice (70) pouvant être retirée et être remplacée par une nouvelle unité réceptrice (70), et
    en ce que la nouvelle unité réceptrice (70) peut être fixée au niveau du dispositif de revêtement (29) par l'actionnement du système de serrage rapide (90).
  7. Installation selon la revendication 5 ou 6,
    caractérisée en ce que
    l'unité réceptrice (70) peut être échangée au moins en partie au moyen d'un système de manipulation automatique.
  8. Installation selon l'une des revendications 5 à 7,
    caractérisée en ce que
    la station de nettoyage (60) présente un élément de support (68) servant à déposer l'unité réceptrice (70), et
    en ce que le système de buse (64) servant à nettoyer la lance de revêtement (30) est disposé sous l'élément de support (68).
  9. Installation selon l'une quelconque des revendications 1 à 8,
    caractérisée en ce que
    un système d'élimination par aspiration est prévu, par lequel des particules métalliques retirées lors du nettoyage peuvent être éliminées par aspiration de la lance de revêtement (30).
  10. Installation selon l'une des revendications 5 à 8,
    caractérisée en ce que
    l'unité réceptrice (70) est réalisée de manière à présenter une forme annulaire avec un corps de base (72) extérieur et une couche réceptrice (75) intérieure, qui est installée de manière amovible au niveau du corps de base (72).
  11. Installation selon la revendication 10,
    caractérisée en ce que
    la couche réceptrice (75) est formée à partir d'une tôle métallique ou d'un matériau en matière synthétique, en particulier de silicone.
  12. Installation selon la revendication 10 ou la revendication 11,
    caractérisée en ce que
    le corps de base (72) extérieur peut être modifié dans sa forme, en particulier peut être divisé, aux fins du détachement de la couche réceptrice (75) intérieure.
  13. Procédé de revêtement métallique d'une pièce (1), en particulier avec une installation (10) selon l'une des revendications 1 à 12,
    dans lequel est généré avec une lance de revêtement (30) pouvant être déplacée d'un dispositif de revêtement (29) un jet de plasma métallique, par lequel un revêtement composé de particules métalliques est formé sur une pièce (1),
    caractérisé en ce que
    - aux fins du nettoyage, la lance de revêtement (30) est déplacée dans une station de nettoyage (60),
    - dans la station de nettoyage (60), un jet de buse d'un gaz de refroidissement est dirigé sur la lance de revêtement (30) au moyen d'un système de buse (64), dans lequel des particules métalliques accumulées sont retirées de la lance de revêtement (30), et
    - le jet de buse est commandé par un système de commande au moyen d'une soupape d'étranglement (66).
  14. Procédé selon la revendication 13,
    caractérisé en ce que
    une unité réceptrice (70), qui entoure de manière annulaire la lance de revêtement (30), est détachée et échangée dans la station de nettoyage (60).
EP15155744.4A 2015-01-20 2015-02-19 Installation et procédé de revêtement métallique d'une pièce Active EP3047914B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15155744.4A EP3047914B1 (fr) 2015-01-20 2015-02-19 Installation et procédé de revêtement métallique d'une pièce
PCT/EP2016/050780 WO2016116368A1 (fr) 2015-01-20 2016-01-15 Dispositif et procédé de revêtement métallique d'une pièce

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15151722 2015-01-20
EP15155744.4A EP3047914B1 (fr) 2015-01-20 2015-02-19 Installation et procédé de revêtement métallique d'une pièce

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EP3047914A1 EP3047914A1 (fr) 2016-07-27
EP3047914B1 true EP3047914B1 (fr) 2018-10-10

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EP (1) EP3047914B1 (fr)
WO (1) WO2016116368A1 (fr)

Cited By (2)

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CN109332055A (zh) * 2018-12-04 2019-02-15 合肥金新允电子技术有限公司 一种自动化喷漆设备的物件夹持装置
CN111229522A (zh) * 2020-01-19 2020-06-05 裴学文 一种五金件防腐处理装置

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EP3290125B1 (fr) 2016-09-01 2020-01-01 Sturm Maschinen- & Anlagenbau GmbH Procede de revêtement d'une paroi d'alesage, dispositif correspondant et bloc moteur
CN108624836B (zh) * 2018-07-03 2023-08-01 郑州立佳热喷涂机械有限公司 液压支架立柱多工位自动化热喷涂装置
CN110639764B (zh) * 2019-09-23 2020-12-01 潘智渊 一种电子产品制造用的点胶设备
CN111996536A (zh) * 2020-09-21 2020-11-27 福建兵工装备有限公司 枪管内膛液体处理装置
CN113414033B (zh) * 2021-07-27 2024-01-12 苏州世沃电子科技有限公司 一种复合石墨散热片制造用喷涂设备及其喷涂方法

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EP1490179A2 (fr) * 2002-03-21 2004-12-29 Nordson Corporation Systemes de nettoyage a pistolet-pulverisateur
DE10230847B3 (de) 2002-07-04 2004-02-05 Universität Stuttgart Institut für Fertigungstechnologie keramischer Bauteile Verfahren und Vorrichtung zur Innenbeschichtung von Hohlräumen durch thermisches Spritzen
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109332055A (zh) * 2018-12-04 2019-02-15 合肥金新允电子技术有限公司 一种自动化喷漆设备的物件夹持装置
CN111229522A (zh) * 2020-01-19 2020-06-05 裴学文 一种五金件防腐处理装置

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