EP3047914B1 - Installation and method for coating a workpiece with metallic material - Google Patents
Installation and method for coating a workpiece with metallic material Download PDFInfo
- 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
Links
- 238000000576 coating method Methods 0.000 title claims description 131
- 239000011248 coating agent Substances 0.000 title claims description 128
- 238000000034 method Methods 0.000 title claims description 22
- 238000009434 installation Methods 0.000 title description 3
- 239000007769 metal material Substances 0.000 title 1
- 238000004140 cleaning Methods 0.000 claims description 52
- 239000002923 metal particle Substances 0.000 claims description 31
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 6
- 239000000112 cooling gas Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 description 14
- 238000011161 development Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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)
- Nozzles (AREA)
- Coating By Spraying Or Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Die Erfindung betrifft eine Anlage zur metallischen Beschichtung eines Werkstückes mit einer Beschichtungsvorrichtung, welche eine verfahrbare Beschichtungslanze aufweist, durch welche ein Metall-Plasmastrahl zum Bilden einer Beschichtung aus Metallpartikeln erzeugbar ist, und einer Düseneinrichtung zum Erzeugen eines Düsenstrahles aus einem Kühlgas, gemäß dem Oberbegriff des Anspruchs 1.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.
Die Erfindung betrifft weiterhin ein Verfahren zur metallischen Beschichtung eines Werkstückes, wobei mit einer verfahrbaren Beschichtungslanze einer Beschichtungsvorrichtung ein Metall-Plasmastrahl erzeugt wird, durch welchen auf einem Werkstück eine Beschichtung aus Metallpartikeln gebildet wird, gemäß dem Oberbegriff des Anspruchs 14.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
Insbesondere im Motorenbau ist es erforderlich, die Laufflächen von Zylinderbohrungen mit einer speziellen metallischen Beschichtung zu versehen, damit hinreichende Reibungs- und Schmierbedingungen zwischen einer Zylinderlauffläche und einem Zylinderkolben gewährleistet sind. Dies gilt vor allem dann, wenn sowohl das Motorengehäuse als auch der Zylinderkolben aus demselben Material, etwa aus Aluminium, gefertigt sind.In particular, in engine construction, it is necessary to provide the running surfaces of cylinder bores with a special metallic coating, so that adequate friction and lubrication conditions between a cylinder surface and a cylinder piston are ensured. This is especially true when both the engine housing and the cylinder piston are made of the same material, such as aluminum.
Aus der
Die
Die
Aufgrund einer gewissen Streuung des Metall-Plasmastrahles gelangen nicht alle Metallpartikel auf die Bohrungswand und verbleiben dort. Diese nicht aufgebrachten Metallpartikel werden als Overspray bezeichnet. Dieser Overspray kann zu unerwünschten Beschichtungen auch an der Beschichtungslanze selbst führen, wodurch mit der Zeit die Funktion der Beschichtungslanze beeinträchtigt wird.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.
Es ist bekannt, eine Absaugeinrichtung vorzusehen, um die überschüssigen Metallpartikel aus dem Verfahrensraum abzuführen. Allerdings lässt sich hierdurch das Problem des Oversprays nur reduzieren, so dass sich weiterhin mit der Zeit unerwünschte Ablagerungen an der Beschichtungslanze bilden.It is known to provide a suction device to remove the excess metal particles from the process space. However, this can only reduce the problem of overspray, so that, over time, unwanted deposits form on the coating lance.
Der Erfindung liegt die Aufgabe zugrunde, eine Anlage und ein Verfahren zur metallischen Beschichtung eines Werkstückes anzugeben, mit welchen Beeinträchtigungen der Beschichtungslanze durch den Overspray besonders zuverlässig entgegengewirkt werden können.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.
Die Aufgabe wird nach der Erfindung durch eine Anlage mit den Merkmalen des Anspruchs 1 und einem Verfahren mit den Merkmalen des Anspruchs 13 gelöst. Bevorzugte Ausführungsformen werden in den jeweils abhängigen Ansprüchen angegeben.The object is achieved according to the invention by a system having the features of claim 1 and a method having the features of
Ein Grundgedanke der erfindungsgemäßen Anlage liegt darin, eine Reinigungsstation vorzusehen, mit welcher unerwünschte Fehlbeschichtungen an der Beschichtungslanze entfernt werden. Gemäß der Erfindung erfolgt dies zu bestimmten Zeitpunkten. Diese können Zeitpunkte in festgelegten Reinigungsintervallen sein oder Zeitpunkte, welche abhängig vom Grad der Verschmutzung von einem Bediener oder einer Steuereinrichtung festgelegt werden.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.
Gemäß einem weiteren Aspekt der Erfindung ist die Reinigungsstation mit einer Düseneinrichtung versehen, durch welche ein Düsenstrahl auf die Beschichtungslanze gerichtet wird. Dabei wird ein Düsenstrahl aus einem Reinigungsmedium erzeugt, welcher die an der Oberseite der Beschichtungslanze angelagerten Metallpartikel entfernt.According to a further aspect of the invention, the cleaning station is provided with a nozzle device, through which a nozzle jet is directed onto the coating lance. In this case, a jet of a cleaning medium is generated, which removes the deposited on the top of the coating lance metal particles.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass die Düseneinrichtung mindestens eine Austrittsdüse aufweist, welche mit einem Druckgasbehälter verbunden ist. Dieser Druckgasbehälter ist dabei insbesondere mit dem Reinigungsmedium befüllt.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.
Grundsätzlich sind verschiedene Reinigungsmedien zur Entfernung der Anlagerungen einsetzbar. Nach einer Weiterbildung der Erfindung ist es besonders vorteilhaft, dass der Düsenstrahl aus CO2 gebildet ist, welcher als CO2-Schnee aus der Düseneinrichtung austritt. Dieses Reinigungsmedium wirkt auf zweifache Weise, nämlich einerseits mechanisch durch den Aufprall der gefrorenen Eispartikel auf die Oberfläche der Beschichtungslanze und andererseits durch thermische Beanspruchung. Denn durch den CO2-Schnee, welcher auf die Oberfläche der Beschichtungslanze mit den anhaftenden Metallpartikeln trifft, werden die Metallpartikel stark abgekühlt, was ein Abplatzen oder Lösen der Metallpartikel von der Oberfläche der Beschichtungslanze unterstützt oder bewirkt.In principle, various cleaning media can be used to remove the deposits. According to a development of the invention, it is particularly advantageous that 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.
Grundsätzlich kann die Austrittsdüse in einer beliebigen Anordnung vorgesehen sein. Insbesondere können auch mehrere Austrittsdüsen entlang des Umfangs der stangenförmigen, üblicherweise zylindrischen Beschichtungslanze angeordnet sein. Besonders vorteilhaft ist es nach einer Ausführungsform der Erfindung, dass die mindestens eine Austrittsdüse einen länglichen Austrittsschlitz aufweist, welcher parallel zur Längsachse der Beschichtungslanze gerichtet ist. Hierdurch kann ein länglicher Düsenstrahl erzeugt werden, welcher etwa parallel zur Beschichtungslanze gerichtet ist. Vorzugsweise wird die Beschichtungslanze während des Reinigens um ihre Längsachse gedreht, so dass der Düsenstrahl die gesamte Oberfläche der Beschichtungslanze in einem Umfangsbereich überstreichen kann. Für eine besonders gründliche Reinigung kann ein mehrfacher Umlauf erfolgen.In principle, the outlet nozzle can be provided in any desired arrangement. In particular, a plurality of outlet nozzles can be arranged along the circumference of the rod-shaped, usually cylindrical coating lance. According to one embodiment of the invention, it is particularly advantageous that the at least one outlet nozzle has an elongate outlet slot which is directed parallel to the longitudinal axis of the coating lance. In this way, an elongated jet can be generated, which is directed approximately parallel to the coating lance. Preferably, during cleaning, 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.
Erfindungsgemäß ist es vorgesehen, dass eine Steuereinrichtung zur Steuerung des Düsenstrahles angeordnet ist. Dabei ist die Steuereinrichtung mit einem Drosselventil vorgesehen, durch welche der Düsenstrahl steuerbar ist. Insbesondere kann so der Druck und/oder der Volumenstrom des Düsenstrahles in gewünschter Weise eingestellt werden.According to the invention, it is provided that a control device for controlling the jet is arranged. In this case, the control device is provided with a throttle valve, through which the jet is controllable. In particular, the pressure and / or the volume flow of the jet can thus be adjusted in the desired manner.
Eine Weiterbildung der Erfindung besteht darin, dass die Beschichtungsvorrichtung eine auswechselbare ringförmige Aufnahmeeinheit aufweist, welche die Beschichtungslanze ringförmig umgibt und zum Anlagern von Metallpartikeln ausgebildet ist, und dass die Reinigungsstation zum Wechseln der Aufnahmeeinheit ausgebildet ist. Die ring- oder trommelförmige Aufnahmeeinheit umgibt die Beschichtungslanze in einer rückgezogenen Verfahrposition, wobei die Aufnahmeeinheit zusammen mit der Beschichtungslanze zwischen verschiedenen Bearbeitungsstellen verfahrbar ist. Durch diese Aufnahmeeinheit können Metallpartikel des Metall-Plasmastrahles beim Verfahren der Beschichtungslanze in die Verfahrposition oder sogar während des Verfahrens aufgenommen werden. Der Plasmastrahl kann so in effizienter Weise ohne Unterbrechung auch beim Verfahren betrieben werden. Durch die Aufnahmeeinheit kann ein übermäßiger Overspray vermieden werden.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. By means of this receiving unit, 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.
Die trommelförmige Aufnahmeeinheit kann zu bestimmten Zeitpunkten in der Reinigungsstation gewechselt werden. Vorzugsweise kann dies bei jeder Reinigung oder nur zu bestimmten Reinigungszeitpunkten oder abhängig vom Füllstand oder Gewicht der Aufnahmeeinheit erfolgen. Hierzu kann ein Sensor angebracht sein, welcher den Füllstand oder das Gewicht ermittelt. Durch eine Steuereinheit ist das Erreichen eines Schwellwertes feststellbar, so dass dann eine Auswechslung veranlasst wird. Beim Wechseln wird die Aufnahmeeinheit von der Beschichtungsvorrichtung und insbesondere einem Verfahrschlitten der Beschichtungslanze gelöst und entfernt. Anschließend kann eine neue ring- oder trommelförmige Aufnahmeeinheit in der Beschichtungsvorrichtung angeordnet werden, so dass dann eine weitere Bearbeitung erfolgen kann.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. For this purpose, a sensor may be mounted, which determines the level or the weight. By a control unit, the reaching of a threshold value can be determined, so that then a replacement is caused. When changing the receiving unit of the coating device and in particular a carriage of the coating lance is dissolved and removed. Subsequently, a new ring-shaped or drum-shaped receiving unit can be arranged in the coating device, so that then a further processing can take place.
Eine weitere bevorzugte Ausführungsform der Erfindung besteht darin, dass die Aufnahmeeinheit mittels einer Schnellspanneinrichtung an der Beschichtungsvorrichtung gehalten ist, dass die Schnellspanneinrichtung in der Reinigungsstation lösbar ist, wobei die Aufnahmeeinheit entfernbar und durch eine neue Aufnahmeeinheit ersetzbar ist, und dass die neue Aufnahmeeinheit durch Betätigen der Schnellspanneinrichtung an der Beschichtungsvorrichtung befestigbar ist. Die Schnellspanneinrichtung kann insbesondere ein Bügelverschluss oder ein sonstiger Verriegelmechanismus sein, der sich leicht lösen und wieder schließen lässt. Grundsätzlich kann dies von Hand durch einen Bediener durchgeführt werden.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.
Eine bevorzugte Weiterbildung der Erfindung liegt darin, dass die Aufnahmeeinheit zumindest teilweise mittels einer automatischen Handhabungseinrichtung auswechselbar ist. Vorzugsweise kann der gesamte Wechselvorgang automatisch durchgeführt werden. Dies ist insbesondere bei einer Serienfertigung vorteilhaft. Die Schnellspanneinrichtung kann dabei mit motorisch betätigbaren oder elektromagnetisch betätigbaren Verriegelungselementen versehen sein. Nach dem Lösen wird die trommelförmige Aufnahmeeinheit etwa durch einen Handhabungsroboter aus der Reinigungsstation abgeführt, wobei gleichzeitig eine neue Aufnahmeeinheit angeordnet und mit der Verfahreinheit der Beschichtungsvorrichtung verbunden wird.A preferred embodiment of the invention is that the receiving unit is at least partially replaceable by means of an automatic handling device. Preferably, 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.
Eine vorteilhafte Ausführungsform der Erfindung besteht darin, dass die Reinigungsstation ein Auflageelement zum Absetzen der Aufnahmeeinheit aufweist und dass unterhalb des Auflageelementes die Düseneinrichtung zum Reinigen der Beschichtungslanze vorgesehen ist. Insbesondere kann die Reinigungsstation einen hülsenförmigen Aufnahmeraum aufweisen, an dessen oberen Ende ein ringförmiger Auflageteller als Auflageelement angebracht ist. In dem darunterliegenden hülsenförmigen Aufnahmeraum ist die Düseneinrichtung vorgesehen, so dass die Beschichtungslanze durch die Düseneinrichtung gereinigt werden kann, während die Aufnahmeeinheit auf dem ringförmigen Auflageelement aufliegt und gewechselt werden kann.An advantageous embodiment of the invention is that 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. In particular, 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. In the underlying sleeve-shaped receiving space, 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.
Nach einer Weiterbildung der Erfindung ist es zweckmäßig, dass eine Absaugeinrichtung vorgesehen ist, durch welche beim Reinigen entfernte Metallpartikel von der Beschichtungslanze absaugbar sind. Insbesondere kann über die Absaugeinrichtung aus dem hülsenförmigen Aufnahmeraum mit der Düseneinrichtung Luft aus dem Verfahrensraum nach unten abgesaugt werden. Hierdurch kann der ausgetretene CO2-Schnee oder das verdampfte CO2-Gas zusammen mit den entfernten Metallpartikeln aus der Reinigungsstation abgesaugt und entfernt werden. Die Absaugeinrichtung kann mit einer zentralen Absaugvorrichtung gekoppelt und verbunden sein, welche auch für die Absaugung von Overspray während der Beschichtung oder des Verfahrens an der Beschichtungslanze sorgt.According to a development of the invention, it is expedient that a suction device is provided, through which removed during cleaning metal particles are sucked from the coating lance. In particular, 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.
Eine vorteilhafte Ausführungsform der Erfindung besteht darin, dass die Aufnahmeeinheit ringförmig mit einem äußeren Grundkörper und einer inneren Aufnahmeschicht ausgebildet ist, welche lösbar an dem Grundkörper angebracht ist. Der äußere Grundkörper ist etwa als ein einfaches Rohrsegment aus Stahl gebildet. Dieser dient als Tragkörper für die innen vorgesehene Aufnahmeschicht, an welcher sich die Metallpartikel anlagern. Die Aufnahmeschicht kann eine Dicke zwischen 0,1 Milimeter bis mehrere Milimeter aufweisen. Durch die lösbare Halterung der Aufnahmeschicht an dem Grundkörper kann die Aufnahmeschicht mit den angelagerten Metallpartikeln leicht entfernt werden, so dass der dickere Grundkörper durch Aufbringen einer neuen Aufnahmeschicht wieder verwendet werden kann.An advantageous embodiment of the invention is that 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.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass die Aufnahmeschicht aus einem Metallblech oder einem Kunststoffmaterial, insbesondere Silikon gebildet ist.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.
Die Aufnahmeschicht kann also ein starrer Körper sein, welcher in den Grundkörper eingesetzt und darin befestigt wird. Das Befestigen kann über radiale Vorsprünge oder Befestigungsmittel, insbesondere Schrauben, erfolgen. Alternativ kann die Aufnahemschicht auch direkt auf die Innenseite des Grundkörpers aufgetragen, insbesondere aufgesprüht werden. Hierzu kann insbesondere Kunststoffmaterial verwendet werden, wobei Silikon aufgrund der hohen Temperaturbeständigkeit bevorzugt ist. Insbesondere kann die Aufnahmeschicht elastisch sein, so dass sich diese leichter von dem äußeren hülsenförmigen Grundkörper lösen lässt.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. Alternatively, the receiving layer can also be applied directly to the inside of the base body, in particular sprayed on. For this purpose, in particular plastic material can be used, wherein silicone is preferred due to the high temperature resistance. In particular, the receiving layer can be elastic, so that it can be easily detached from the outer sleeve-shaped base body.
Zum leichteren Lösen ist es nach einer Weiterbildung der Erfindung vorteilhaft, dass der äußere Grundkörper zum Lösen der inneren Aufnahemschicht in seiner Form veränderbar, insbesondere teilbar ist. So kann der Grundkörper insbesondere aus zwei oder mehr Teilen aufgebaut sein, welche über Verbindungsmittel oder Gelenke miteinander verbunden sind. Bei einem zweiteiligen Grundkörper kann dieser aus zwei Halbschalen aufgebaut sein, welche sich auseinander schwenken lassen. Hinsichtlich des Verfahrens ist die Erfindung dadurch gekennzeichnet, dass zum Reinigen die Beschichtungslanze in eine Reinigungsstation verfahren wird, dass in der Reinigungsstation ein Düsenstrahl eines Kühlgases mittels einer Düseneinrichtung auf die Beschichtungslanze gerichtet wird, wobei angelagerte Metallpartikel von der Beschichtungslanze entfernt werden, und dass der Düsenstrahl durch eine Steuereinrichtung mittels eines Drosselventils gesteuert wird. Mit diesem erfindungsgemäßen Verfahren kann insbesondere die zuvor beschriebene Anlage betrieben und die dabei erzielten Vorteile erreicht werden. Bei den angeführten Metallpartikeln handelt es sich um Partikel aus dem Plasmastrahl. Diese Metallpartikel können reine Metalle, Legierungen oder Metalloxide umfassen.To facilitate release, it is advantageous according to a development of the invention that the outer base body for releasing the inner receiving layer in its shape is changeable, in particular divisible. Thus, 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. With regard to the method, 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. With this method according to the invention, in particular, 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.
Grundsätzlich sind in der Reinigungsstation auch andere Verschmutzungen, wie Öl- oder Fettanlagerungen, entfernbar.In principle, other soiling, such as oil or grease deposits, are removable in the cleaning station.
Eine Weiterbildung des erfindungsgemäßen Verfahrens besteht darin, dass eine Aufnahmeeinheit, welche die Beschichtungslanze ringförmig umgibt, in der Reinigungsstation gelöst und ausgewechselt wird. Somit kann bei dem erfindungsgemäßen Verfahren nicht nur eine Reinigung der Beschichtungslanze erfolgen, sondern die Zeit zur Reinigung kann gleichzeitig zum Wechseln einer Aufnahmeeinheit dienen, welche zum Aufnehmen von überschüssigen angelagerten Metallpartikeln dient. Die Erfindung wird nachfolgend anhand von bevorzugten Ausführungsbeispielen weiter beschrieben, welche schematisch in den beigefügten Zeichnungen dargestellt sind. In den Zeichnungen zeigen:
- Fig. 1:
- eine schematische Seitenansicht einer erfindungsgemäßen Anlage;
- Fig. 2:
- eine um 90° geklappte Seitenansicht der Anlage von
Fig. 1 in stark schematisierter Form; - Fig. 3:
- eine Draufsicht der Anlage gemäß den
Figuren 1 und 2 ; - Fig. 4:
- eine schematische perspektivische Ansicht der Anlage gemäß den Figuren 1
bis 3, jedoch ohne Gehäuse; - Fig. 5:
- eine schematische perspektivische Ansicht einer Beschichtungsvorrichtung für die erfindungsgemäße Anlage;
- Fig. 6:
- eine schematische perspektivische Ansicht der Beschichtungsvorrichtung von
Fig. 5 , jedoch ohne Beschichtungslanze; - Fig. 7:
- eine vergrößerte Querschnittsansicht zu einer Absaugglocke der Beschichtungsvorrichtung gemäß den
Figuren 5 und6 ; - Fig. 8:
- eine schematische perspektivische Ansicht der Beschichtungsvorrichtung an einer Reinigungsstation gemäß der Erfindung;
- Fig. 9:
- eine vergrößerte schematische perspektivische Ansicht der Reinigungsstation von
Fig. 8 ; - Fig. 10:
- eine Querschnittsdarstellung der Reinigungsstation gemäß
Fig. 9 ; und - Fig. 11:
- eine Querschnittsansicht durch eine erfindungsgemäße Aufnahmeeinheit
- Fig. 1:
- a schematic side view of a system according to the invention;
- Fig. 2:
- a 90 ° folded side view of the plant of
Fig. 1 in a highly schematized form; - 3:
- a plan view of the system according to the
Figures 1 and 2 ; - 4:
- a schematic perspective view of the system according to Figures 1 to 3, but without housing;
- Fig. 5:
- a schematic perspective view of a coating device for the inventive system;
- Fig. 6:
- a schematic perspective view of the coating device of
Fig. 5 but without coating lance; - Fig. 7:
- an enlarged cross-sectional view of a suction bell of the coating apparatus according to the
Figures 5 and6 ; - Fig. 8:
- a schematic perspective view of the coating device at a cleaning station according to the invention;
- Fig. 9:
- an enlarged schematic perspective view of the cleaning station of
Fig. 8 ; - Fig. 10:
- a cross-sectional view of the cleaning station according to
Fig. 9 ; and - Fig. 11:
- a cross-sectional view through a receiving unit according to the invention
Eine erfindungsgemäße Anlage 10 zur metallischen Beschichtung von Bohrungen 3 in einem Werkstück 1 ist in
Die Anlage 10 weist ein Maschinenbett 11 auf, auf welchem ein Gehäuse 13 angeordnet ist. Das kastenförmige Gehäuse 13 umschließt eine Ladestation 12 und eine Bearbeitungsstation 14 mit einer Beschichtungsvorrichtung 29.The system 10 has a
Auf dem Maschinenbett 11 ist zur Aufnahme eines Werkstücks 1 ein Grundrahmen 16 einer Fördereinrichtung 20 angeordnet, welche im dargestellten Ausführungsbeispiel als ein Drehtisch 22 ausgebildet ist. Der um eine vertikale Drehachse drehbar angetriebene horizontale Drehtisch 22 weist zwei gegenüberliegende Werkstückaufnahmen 23 auf, in welchen jeweils ein plattenförmiges Palettenmodul 21 mit je einem Werkstück 1 aufnehmbar ist. Über eine Schwenkeinrichtung 26 kann das Palettenmodul 21 mit dem Werkstück 1 gegenüber der Horizontalen verschwenkt werden, so dass die Bohrungen 3 in dem Werkstück 1 vertikal zur Durchführung einer metallischen Beschichtung angeordnet werden können.On the
Das Werkstück 1 wird an der Ladestation 12 von einer nicht dargestellten Zufördereinrichtung aufgenommen. Das Gehäuse 13 weist im Bereich der Ladestation 12 eine nicht dargestellte Öffnung mit einer Tür auf. Weiterhin kann im Bereich der Lackstation 12 eine Vermessung des Werkstücks 1 erfolgen. Anschließend wird der Drehtisch 22 um 180° gedreht, wobei das Werkstück 1 von der Ladestation 12 zu der gegenüberliegenden Bearbeitungsstation 14 gefördert wird. Die Bearbeitungsstation 14 ist von der Ladestation 12 über eine Trennwand 24 getrennt. In
In der Bearbeitungsstation 14 wird das Werkstück 1 mit der Schwenkeinrichtung 26 um eine horizontale Schwenkachse verschwenkt, wobei jeweils eine Reihe von Bohrungen 3 vertikal ausgerichtet wird, wie aus den
Zum Aufbringen der metallischen Beschichtung ist eine Beschichtungsvorrichtung 29 mit einer stangenförmigen Beschichtungslanze 30 vorgesehen, welche an ihrem unteren Ende mindestens eine Austrittsöffnung 32 für einen Metall-Plasmastrahl aufweist. Der Metall-Plasmastrahl wird in bekannter Weise durch einen Plasmagenerator mit einer Kathode und einer metallischen Anode erzeugt. Über eine entsprechend hohe elektrische Spannung wird zwischen der Kathode und der Anode ein Lichtbogen gebildet, durch welchen die metallische Anode aufgeschmolzen wird. Die metallische Anode ist als ein zuführbarer Draht ausgebildet, so dass stets ausreichend Material vorliegt, um mit den aufgeschmolzenen metallischen Partikeln einen Metall-Plasmastrahl zu bilden. Als Quelle der metallischen Partikel kann anstelle eines Drahtes auch eine Zuführung von Pulver vorgesehen werden. Über eine Gasdüseneinrichtung wird ein Gasstrom erzeugt, welcher mit Überschallgeschwindigkeit aus der Austrittsöffnung 32 am unteren Ende der Beschichtungslanze 30 etwa horizontal austritt. Dabei wird die Beschichtungslanze 30 mit der Austrittsöffnung 32 in die zu beschichtende Bohrung 3 im Werkstück 1 eingefahren. Die Beschichtungsvorrichtung 29 weist weiter eine hülsenförmige Absaugglocke auf, welche die Beschichtungslanze 30 umgibt, jedoch in den
Zum Verfahren der Beschichtungslanze 30 ist eine Portaleinrichtung 40 mit zwei parallelen ersten Verfahrachsen 41 vorgesehen. Auf den beiden ersten Verfahrachsen 41 ist ein rahmenartiger erster Verfahrschlitten 47 horizontal verfahrbar gelagert. Der erste Verfahrschlitten 47 weist selbst zwei lineare, horizontale zweite Verfahrachsen 42 auf, welche parallel zueinander und senkrecht zu den ersten Verfahrachsen 41 angeordnet sind.To process the
Entlang den beiden zweiten Verfahrachsen 42 ist ein balkenförmiger zweiter Verfahrschlitten 48 horizontal verfahrbar angeordnet. Der zweite Verfahrschlitten 48 weist selbst eine einzelne vertikale dritte Verfahrachse 43 auf. Entlang dieser dritten Verfahrachse 43 ist ein Aufnahmeschlitten 45 vertikal verfahrbar gelagert. Auf dem Aufnahmeschlitten 45 ist die Beschichtungslanze 30 drehbar gehaltert.Along the two second track axes 42, a beam-shaped
Nachdem ein Werkstück 1 in der Bearbeitungsstation 14 positioniert ist, wird die Beschichtungslanze 30 der Beschichtungsvorrichtung 29 in eine erste zu beschichtende Bohrung 3 in dem Werkstück 1 eingefahren. Die kontinuierlich betriebene Beschichtungslanze 30 erzeugt dabei einen Metall-Plasmastrahl, welcher mit Überschallgeschwindigkeit auf eine Bohrungswand der Bohrung 3 auftrifft. Durch das Drehen der Beschichtungslanze 30 und das axiale Verfahren in vertikaler Richtung erfolgt eine gleichmäßige definierte metallische Beschichtung mit einer Dicke von beispielsweise 10 µm auf die Bohrungswand.After a workpiece 1 is positioned in the
Nach dem Herausfahren der Beschichtungslanze 30 aus der ersten beschichteten Bohrung 3 wird der Metall-Plasmastrahl unmittelbar bei Austritt aus der Bohrung 3 auf eine Aufprallfläche einer Aufnahmeeinheit in der Absaugglocke gerichtet, welche zusammen mit der Beschichtungslanze 30 an dem Aufnahmeschlitten 45 gehaltert ist und nachfolgend im Zusammenhang mit den
Nach Beendigung der Beschichtung wird die Beschichtungslanze 30 mit der Portaleinrichtung 40 rückgefahren und das fertige beschichtete Werkstück 1 kann unter gleichzeitiger Zuführung eines neuen zu bearbeitenden Werkstückes 1 in die Ladestation 12 durch den rechten Durchgang 25 rückgefördert werden. Dabei wird das Verschlusselement 27 an dem Durchgang 25 geöffnet. Gleichzeitig wird mit der Drehbewegung des Drehtisches 22 ein neues Werkstück 1 von der Ladestation 12 in die Bearbeitungsstation 14 durch den geöffneten linken Durchgang 25 gefördert.After completion of the coating, the
Über einen Handlingsroboter 50 mit einer Messeinrichtung 52 kann die Schichtdicke und Kontur der aufgebrachten Beschichtung vermessen werden. Mit der Messeinrichtung 52 können auch die noch unbeschichteten Bohrungen 3 eines neu zugeführten Werkstückes 1 vorab vermessen werden, so dass eine noch genauere Prüfung der durchgeführten Beschichtung durch einen Vergleich der Messdaten möglich ist. Das beschichtete Werkstück 1 kann dann in der Ladestation 12 aus der Werkstückaufnahme 23 des Drehtisches 22 entnommen werden. Danach kann ein neues Werkstück 1 in die Werkstückaufnahme 23 der Fördereinrichtung 20 eingesetzt werden. Somit kann bei der erfindungsgemäßen Anlage 10 das Be- und Entladen parallel zur Bearbeitung eines Werkstückes 1 in der Bearbeitungsstation 14 und somit neutral zur Maschinenhauptzeit erfolgen. Dies ermöglicht eine effiziente Maschinennutzung.About a handling
Mit der Portaleinrichtung 40 kann die Beschichtungslanze 30 in bestimmten zeitlichen Abständen zu einer Prüfstation 54 zum Überprüfen des Strahlbildes des Metall-Plasmastrahles oder zu einer Reinigungsstation 60 verfahren werden, welche nachfolgend mit den
Eine Beschichtungsvorrichtung 29 für eine erfindungsgemäße Anlage 10 zur metallischen Beschichtung ist in wesentlichen Teilen in den
Die Beschichtungsvorrichtung 29 weist weiterhin eine Absaugglocke 80 auf, welche mittels eines Glockenschlittens 35 in vertikaler Richtung und parallel zur Verfahrrichtung des Aufnahmeschlittens 45 verfahrbar gelagert ist. An dem Grundschlitten 28 sind hierzu zwei schienenartige Glockenführungen 36 angeordnet, mit welchen der Glockenschlitten 35 über Gleitschuhe in führender Verbindung steht. Eine Linearverschiebung wird mittels eines Linearantriebes bewirkt. Der Grundschlitten selbst ist gegenüber dem Maschinenbett 11 der Anlage 10 in mehreren Richtungen über die zuvor beschriebene Portaleinrichtung 40 verfahrbar gelagert. An dem rahmenartigen Glockenschlitten 35 der Absaugglocke 80 ist eine zylindrische oder trommelförmige Abdeckhaube 82 befestigt.The
Mit Bezugnahme auf
An ihrer Unterseite wird die Abdeckhaube 82 von einer ringförmigen Grundplatte 86 abgeschlossen, welche über im vorliegenden Ausführungsbeispiel drei Schnellspanneinrichtungen 90 lösbar an einer unteren Ringstrebe 87 des Halterahmens 81 befestigt ist. Hierzu sind an der radialen Außenkante der Grundplatte 86 radial vorstehende Hakenelemente 91 vorgesehen, welche mit einem Spannbügel der Schnellspanneinrichtung 90 in Verbindung kommen.On its underside, the
Zum Durchtritt der Beschichtungslanze 30 durch die Grundplatte 86 weist diese eine Mittenöffnung 88 auf, entlang welcher ein Ringflansch 92 über Federelemente 93 federnd gelagert und an der Grundplatte 86 gehaltert ist. Die federnde Lagerung des Ringflansches 92 dient einem passgenauen, flexiblen Aufsetzen der Absaugglocke 80 auf einem Werkstück 1.For the passage of the
Der Ringflansch 92 weist an seiner radialen Innenseite eine Konusfläche 94 mit einem nach oben gerichteten Schrägungswinkel von ca. 30 Grad auf. Beim Durchtritt der Beschichtungslanze 30 aus dem Werkstück 1 in die Absaugglocke 80 bei einem kontinuierlich durchlaufenden Metall-Plasmastrahl werden auf die Konusfläche 94 auftreffende Metallpartikel in großem Umfang abgelenkt und in eine trommelförmige Aufnahmeeinheit 70 geleitet, welche auf der Grundplatte 86 in der Absaugglocke 80 gelagert ist.The annular flange 92 has on its radial inside a
Die trommelförmige Aufnahmeeinheit 70 weist einen Grundkörper 72 aus Blech auf, welche eine aus einem gebogenen und verschweißten Blechstreifen gefertigte zylindrische Umfangswand 74 umfasst. Am oberen Ende der Umfangswand 74 ist ein ringförmiges oberes Randelement 76 angeschweißt. In entsprechender Weise ist am unteren Ende der Umfangswand 74 ein ringförmiges unteres Randelement 78 angeschweißt. Beide Randelemente 76, 78 sind radial nach innen gerichtet und umschließen einen ringförmigen Aufnahmeraum.The drum-shaped
Durch die in der Absaugglocke 80 auswechselbar gehalterte Aufnahmeeinheit 70 kann die Beschichtungsvorrichtung 29 mit der Beschichtungslanze 30 bei einem durchlaufenden Betrieb des Metall-Plasmastrahles zwischen den einzelnen Bohrungen 3 eines Werkstückes 1 verfahren werden. Hierbei lagern sich die Metallpartikel in der Aufnahmeeinheit 70 an, so dass diese sich mit der Zeit befüllt. Bei einem bestimmten Füllstand, welcher durch einen Bediener oder eine Sensoreinrichtung, insbesondere durch eine gewichtsabhängige Messung, festgestellt wird, ist die Aufnahmeeinheit 70 aus der Absaugglocke 80 zu lösen und durch eine neue Aufnahmeeinheit 70 zu ersetzen.The
Bei der erfindungsgemäßen Anlage 10 ist in der Bearbeitungsstation 14 eine Reinigungsstation 60 angeordnet, welche näher in den
Zum Reinigen wird in dieser Auflageposition die Beschichtungslanze 30 nach unten aus der Absaugglocke 80 heraus und in den Aufnahmeraum des hülsenförmigen Gehäusekörpers 62 der Reinigungsstation 60 verfahren. Über eine seitliche Düseneinrichtung 64 an dem Gehäusekörper 62 wird über eine Austrittsdüse 65 mit einem länglichen Austrittsschlitz ein Düsenstrahl aus CO2-Schnee auf den Umfangsbereich der eingeführten Beschichtungslanze 30 gerichtet. Der Düsenstrahl wird dabei mit einem Überdruck, welcher etwa 10 bar oder mehr betragen kann, so auf die Oberfläche der Beschichtungslanze 30 gerichtet, dass daran angelagerte Metallpartikel gelöst und entfernt werden. Die entfernten Metallpartikel werden über eine nicht dargestellte Absaugeinrichtung über den Lochboden 63 nach unten aus dem Gehäusekörper 62 abgeführt. Während des Bestrahlens mit dem Düsenstrahl der Düseneinrichtung 64 wird die Beschichtungslanze 30 um ihre Längsachse drehend angetrieben und auch in axialer Richtung verfahren. Auf diese Weise kann der Düsenstrahl der Düseneinrichtung 64 einen gewünschten Bereich der Beschichtungslanze 30 überstreichen und reinigen.For cleaning, the
Weiterhin kann in der Reinigungsstation 60 die Aufnahmeeinheit 70 in der Absaugglocke 80 ausgewechselt werden. Hierzu werden die Schnellspanneinrichtungen 90 an der Außenseite der Absaugglocke 80 gelöst. Anschließend wird die Beschichtungsvorrichtung 29 axial nach oben verfahren, wobei die Aufnahmeeinheit 70 auf dem ringförmigen Auflageelement 68 der Reinigungsstation 60 verbleibt. Die befüllte Aufnahmeeinheit 70 kann sodann durch einen Bediener oder durch ein Handhabungsgerät entfernt und aus der Anlage 10 über eine nicht dargestellte Öffnung in dem Gehäuse 13 abgeführt werden. Anschließend kann eine neue Aufnahmeeinheit 70 in der Reinigungsstation 60 auf dem Auflageelement 68 positioniert werden. Abschließend wird die Beschichtungsvorrichtung 29 wieder axial nach unten verfahren, bis die neue Aufnahmeeinheit 70 in der Absaugglocke 80 aufgenommen ist. Sodann werden die Schnellspanneinrichtungen 90 wieder geschlossen und die Beschichtungsvorrichtung 29 steht wieder zur Bearbeitung eines weiteren Werkstückes 1 zur Verfügung.Furthermore, in the cleaning
Gemäß
Die beiden Halbschalen 72a, 72b des äußeren Grundkörpers 72 sind durch eine schematisch angedeutete Verbindungseinrichtung 77 zusammengehalten. Durch Lösen der Verbindungseinrichtung 77 ist der Grundkörper 72 teilbar, so dass die hülsenförmige Aufnahmeschicht 75 von der Innenseite des Grundkörpers 72 gelöst wird. Auf diese Weise kann eine mit Metallpartikeln bedeckte Aufnahmeschicht 75 ausgewechselt und durch eine neue Aufnahmeschicht 75 ersetzt werden. Nach Einsetzen der neuen Aufnahemschicht 75 können der Grundkörper 72 und die Verbindungseinrichtung 77 wieder geschlossen werden. Die Aufnaheeinheit 70 kann sodann wieder in die zuvor beschriebene Anlage 10 eingesetzt werden. Die beschriebene Aufnahmeeinheit 70 gemäß
Claims (14)
- System for the metal coating of a workpiece (1) having- a coating device (29) which has a movable coating lance (30), by which a metal plasma jet can be produced to form a coating of metal particles, and- a nozzle means (64) for producing a nozzle jet of a cooling gas,ch ara cterized in that- a cleaning station (60) is provided, to which the coating lance (30) can be moved at certain points in time, and- in that in the cleaning station (60) the nozzle means (64) is arranged, through which the nozzle jet is directed onto the coating lance (30) for its cleaning,- in that a control means with a throttle valve (66) is provided, by which the nozzle jet can be controlled.
- System according to claim 1,
characterized in that
the nozzle means (64) has at least one discharge nozzle (65) which is connected to a compressed gas container. - System according to claim 2,
characterized in that
the at least one discharge nozzle (65) has an elongate discharge slit which is directed approximately parallel to the longitudinal axis of the coating lance (30). - System according to any one of claims 1 to 3,
characterized in that
the nozzle jet is formed of CO2 which is discharged from the nozzle means (64) as CO2-snow. - System according to any one of claims 1 to 4,
characterized in that
the coating device (29) has an exchangeable annular receiving unit (70) which surrounds the coating lance (30) annularly and is designed for the accumulation of metal particles, and
in that the cleaning station (60) is designed for changing the receiving unit (70). - System according to claim 5,
characterized in that
the receiving unit (70) is held on the coating device (29) by means of a quick-clamping means (90),
in that the quick-clamping means (90) can be released in the cleaning station (60), wherein the receiving unit (70) can be removed and replaced by a new receiving unit (70), and
in that the new receiving unit (70) can be fastened on the coating device (29) by actuating the quick-clamping means (90). - System according to claim 5 or 6,
characterized in that
the receiving unit (70) can be exchanged at least partially by means of an automatic handling means. - System according to any one of claims 5 to 7,
characterized in that
the cleaning station (60) has a support element (68) for placing the receiving unit (70) and
in that below the support element (68) the nozzle means (64) for cleaning the coating lance (30) is arranged. - System according to any one of claims 1 to 8,
characterized in that
a suction means is provided, through which metal particles removed during cleaning can be sucked off from the coating lance (30). - System according to any one of claims 5 to 8,
characterized in that
the receiving unit (70) is of annular design with an external base body (72) and an internal receiving layer (75) which is releasably fixed on the base body (72). - System according to claim 10,
characterized in that
the receiving layer (75) is formed of a metal sheet or a plastic material, in particular silicone. - System according to claim 10 or claim 11,
characterized in that
to release the internal receiving layer (75) the external base body (72) can be altered in its shape, in particular by being separable. - Method for the metal coating of a workpiece (1), in particular with a system (10) according to any one of claims 1 to 12,
wherein by means of a movable coating lance (30) of a coating device (29) a metal plasma jet is produced, through which a coating of metal particles is formed on a workpiece (1),
characterized in that- for cleaning the coating lance (30) is moved into a cleaning station (60),- in that in the cleaning station (60) a nozzle jet of a cooling gas is directed by means of a nozzle means (64) onto the coating lance (30), wherein accumulated metal particles are removed from the coating lance (30), and- in that the nozzle jet is controlled by a control means by means of a throttle valve (66). - Method according to claim 13,
characterized in that
a receiving unit (70) which surrounds the coating lance (30) annularly is released and exchanged in the cleaning station (60).
Priority Applications (2)
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EP15155744.4A EP3047914B1 (en) | 2015-01-20 | 2015-02-19 | Installation and method for coating a workpiece with metallic material |
PCT/EP2016/050780 WO2016116368A1 (en) | 2015-01-20 | 2016-01-15 | System and method for the metal coating of a workpiece |
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EP15151722 | 2015-01-20 | ||
EP15155744.4A EP3047914B1 (en) | 2015-01-20 | 2015-02-19 | Installation and method for coating a workpiece with metallic material |
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EP3047914A1 EP3047914A1 (en) | 2016-07-27 |
EP3047914B1 true EP3047914B1 (en) | 2018-10-10 |
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WO (1) | WO2016116368A1 (en) |
Cited By (2)
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CN109332055A (en) * | 2018-12-04 | 2019-02-15 | 合肥金新允电子技术有限公司 | A kind of device for holding article automating paint spraying apparatus |
CN111229522A (en) * | 2020-01-19 | 2020-06-05 | 裴学文 | Hardware anti-corrosion treatment device |
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HUE048450T2 (en) | 2016-09-01 | 2020-07-28 | Sturm Maschinen & Anlagenbau Gmbh | Method for coating a cylinder wall, corresponding device and crankcase |
CN108624836B (en) * | 2018-07-03 | 2023-08-01 | 郑州立佳热喷涂机械有限公司 | Multi-station automatic thermal spraying device for stand column of hydraulic support |
CN110639764B (en) * | 2019-09-23 | 2020-12-01 | 潘智渊 | Dispensing equipment for manufacturing electronic products |
CN111996536A (en) * | 2020-09-21 | 2020-11-27 | 福建兵工装备有限公司 | Barrel bore liquid treatment device |
CN113414033B (en) * | 2021-07-27 | 2024-01-12 | 苏州世沃电子科技有限公司 | Spraying equipment and spraying method for manufacturing composite graphite radiating fin |
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EP2979766A1 (en) * | 2014-07-30 | 2016-02-03 | Sturm Maschinen- & Anlagenbau GmbH | Device and method for metallic coating and holder unit for the device |
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US20050103883A1 (en) * | 2002-03-21 | 2005-05-19 | Schroeder Joseph G. | Spray gun cleaning arrangements |
DE10230847B3 (en) | 2002-07-04 | 2004-02-05 | Universität Stuttgart Institut für Fertigungstechnologie keramischer Bauteile | Process and device for the internal coating of cavities by thermal spraying |
DE102007017513A1 (en) | 2007-04-13 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Device for coating components |
JP5504621B2 (en) * | 2008-02-29 | 2014-05-28 | 日産自動車株式会社 | Thermal spraying apparatus for cylinder bore and thermal spray film forming method |
DE102012024040A1 (en) * | 2012-12-08 | 2014-06-26 | Volkswagen Aktiengesellschaft | Cleaning apparatus i.e. rinsing pot, for painting plant lacquer finish tool e.g. bell jar, for cleaning paint adhering, has pressurized air nozzle arranged at apparatus for air flow, where air is delivered into inner space of cleaning pot |
EP2829327B1 (en) * | 2013-07-26 | 2017-11-29 | Oerlikon Metco AG, Wohlen | Method for cleaning a burner of a plasma coating installation and plasma coating installation |
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2015
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EP2979766A1 (en) * | 2014-07-30 | 2016-02-03 | Sturm Maschinen- & Anlagenbau GmbH | Device and method for metallic coating and holder unit for the device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109332055A (en) * | 2018-12-04 | 2019-02-15 | 合肥金新允电子技术有限公司 | A kind of device for holding article automating paint spraying apparatus |
CN111229522A (en) * | 2020-01-19 | 2020-06-05 | 裴学文 | Hardware anti-corrosion treatment device |
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WO2016116368A1 (en) | 2016-07-28 |
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