EP1475159B1 - Dispositif de revêtement de poudre par pulvérisation - Google Patents

Dispositif de revêtement de poudre par pulvérisation Download PDF

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Publication number
EP1475159B1
EP1475159B1 EP04007899A EP04007899A EP1475159B1 EP 1475159 B1 EP1475159 B1 EP 1475159B1 EP 04007899 A EP04007899 A EP 04007899A EP 04007899 A EP04007899 A EP 04007899A EP 1475159 B1 EP1475159 B1 EP 1475159B1
Authority
EP
European Patent Office
Prior art keywords
holes
coating material
spray
air
flow path
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.)
Expired - Lifetime
Application number
EP04007899A
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German (de)
English (en)
Other versions
EP1475159A1 (fr
Inventor
Felix Mauchle
Hanspeter Michael
Hanspeter Vieli
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.)
Gema Switzerland GmbH
Original Assignee
Gema Switzerland 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 Gema Switzerland GmbH filed Critical Gema Switzerland GmbH
Publication of EP1475159A1 publication Critical patent/EP1475159A1/fr
Application granted granted Critical
Publication of EP1475159B1 publication Critical patent/EP1475159B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B05B7/14—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 designed for spraying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0426—Means for supplying shaping gas

Definitions

  • the invention relates to a spray device for coating material, in particular coating powder, according to the preamble of claim 1.
  • the invention relates to a spray device which has at least one high-voltage electrode for electrostatically charging the coating material.
  • a spray device which has at least one high-voltage electrode for electrostatically charging the coating material.
  • sprayers which are not designed for the electrostatic charging of coating material.
  • Sprayers of this type are known, for. Example from US 4,324,361, DE 34 12 694 A1, US 4,505,430, US 4,196,465 US 4,347,984 and US 6,189,804.
  • Document EP-A-0 295 366 discloses a generic coating material sprayer having a coating material channel, a spray outlet at the downstream end of the coating material channel for spraying the coating material onto an object to be coated, and having a shaping air outlet for shaping compressed air which is close to the surface Spray outlet and the flow path of the coating material extends around, separated from the flow path, and is adapted to generate from compressed air forming air flow surrounding the coating material spray jet.
  • the shaping air outlet is formed by a large number of holes in a body, which are distributed around the flow path of the coating material, separated therefrom, and which face forward to the coating material spray jet.
  • a disadvantage of sprayers with an annular gap as Formungs Kunststoffauslass is that even if the gap is supported in the gap longitudinal direction at several points between the two parts forming it, not uniformly large can be formed, for technical reasons. This disadvantage is not given if bores are used instead of an annular gap, especially then; when the body in which the holes are formed is undivided at the bore location.
  • Such sprayers show z. EP 0 767 005 B1, EP 0 744 998 B1 and DE 34 31 785 C2.
  • the object of the invention is to achieve the object of achieving an equally good or better efficiency with regard to the action on the coating material spray stream and also with regard to the coating quality and with respect to the amount of coating material required for the coating with less amount of shaping air per unit time.
  • the invention relates to a spray device for coating material, in particular coating powder, comprising a coating material channel; a spray outlet at the downstream end of the coating material channel for spraying the coating material onto an object to be coated; a shaping air outlet for shaping compressed air, which extends close to the spray outlet and the flow path of the coating material, separated from the flow path, and is adapted to generate from compressed air a forming air flow enveloping the coating material spray jet; wherein the shaping air outlet is formed by a large plurality of holes in a body distributed around the flow path of the coating material, separate therefrom, and facing forwardly to the coating material spray, characterized in that an ambient air passage is spaced relative to Holes are provided offset radially inward, which extends from one behind the body; in which the holes are formed, located ambient air entry point to an air outlet located in front of the body in which the holes are formed and extending in one or more openings around the flow path of the coating material, separated from this Strömühgsweg, such that ambient air can be s
  • FIGs. 1 and 2 show only one of many possible embodiments of the invention.
  • the spraying apparatus shown in FIGS. 1 and 2 is designed for spraying coating powder, but instead could also be designed for spraying liquid coating material.
  • the sprayer includes a coating material channel 2; a spray outlet 4 at the downstream end of the coating material channel 2 for spraying the coating material 6 in the form of a coating material spray stream 8 onto an object to be coated (not shown); and a shaping air outlet 10 for shaping compressed air 12, which extends around the flow path of the coating material 6, separated from the flow path, close to the spray outlet 8 and is adapted to receive from the shaping compressed air 12 a Coating material spray 8 enveloping shaping air flow 11 to produce.
  • the shaping air outlet 10 is formed by a large plurality of holes 14 which extend through a body 16 undivided at the holes and are distributed around the flow path of the coating material 6, separated from this flow path.
  • the holes 14 are each arranged with the same circumferential distance 18 from each other concentrically concentric around the axial center axis 20 of the flow path of the coating material 6 around.
  • the holes may also be arranged in another form, for example oval or polygonal, around the central axial axis 20 in order to produce a specific cross-sectional shape of the spray stream 8.
  • the circumferential distance 18 between the holes 14 is so small that the emerging from them forming air jets 22 flow together by radial Expanison to a circular cross-sectional shaping air flow, preferably immediately after the holes 14 before they hit the spray stream 8, but at the latest at the point of impact on the Spray stream 8.
  • the holes 14 are directed forward as viewed in the coating material spraying direction, preferably parallel to the axial center axis 20, and preferably formed in a forwardly facing end surface. According to another embodiment, they may also be directed obliquely to the axial central axis 20, pointing either towards or away from it. By the direction of the holes 14 relative to the axial center axis 20 and by the pressure strength of the compressed air 12, the cross-sectional shape and cross-sectional size of the spray stream 8 can be adjusted.
  • At or near the flow path of the coating material is at or near the spray outlet 4 at least one or more electrodes, z. B. 23, 24 and / or 25, which is connected to a high voltage generator 26 for electrostatic charging of the coating material 6 or are.
  • the high voltage generator 26 may be located externally of the sprayer or as shown in FIG. 1 in the sprayer. It generates from a AC voltage a higher Gteichschreib, which may for example be in the range between 4 kV and 150 kV.
  • the sprayer has a low voltage AC voltage terminal 28 for supplying low voltage AC voltage to the high voltage generator 26; a coating material port 30 for supplying coating material to the coating material channel 2; and a molding compressed air port 32 for supplying molding compressed air 12 to a manifold 34 connecting the holes 14 at their upstream.
  • each hole 14 there are at least ten or more holes 14, for example at least twenty, thirty or forty, or any plurality.
  • the circumferential distance 18 of the holes 14 from each other is at least a factor of two or more greater than the opening size 38 of the holes 14 in the circumferential direction about the axial center axis 20.
  • the factor has a larger shipyard, for example, the value five or more, for example, ten or more.
  • the opening area of each hole 14 is smaller than 2.0 mm 2 , for example, smaller than 1.0 mm 2 or more preferably smaller than 0.5 mm 2 or smaller than 0.3 mm 2 .
  • the goal is to make the holes as small as possible, as is technically feasible, to thereby produce a fast flowing, high energy shaping air jet 22 at each hole 14 and therefrom a high energy shaping air stream 11 with a minimum possible forming air flow rate per unit time.
  • an effective influencing of the cross-sectional shape and cross-sectional size of the spray stream 8 is achieved with a small amount of air per unit time. Due to the very small cross-sectional size of the individual holes 14, a same shaping air flow rate per unit time is achieved at all holes, even if all holes 14 have the same cross-section and the distribution channel 34 on its whole Length has a constant cross-sectional size.
  • the small cross-sectional size of the holes 14 causes a uniform air pressure distribution over the entire length of the distribution channel 34.
  • the sum of the total cross-sectional sizes of all holes 14 is smaller, z. B. only half as large as the cross-flow section of the distribution channel 34th
  • the holes 14 preferably each have a cross-sectionally circular cross-section, but may also have a different cross-section, for example a polygonal cross-sectional shape.
  • the holes 14 may be formed during manufacture of the body 16 in which they are formed during the body fabrication process, for example by injection molding to make the body 16 and simultaneously make the holes 14. According to another preferred embodiment, the holes 14 are by drilling formed in the body 16.
  • the body 16 may be made of a rigid material, such as a metal tube or a plastic tube, or of an elastic or flexible material, e.g. a hose, z. B. rubber or plastic.
  • Figs. 1 and 2 show an embodiment in which the body 16 is a hose or a pipe in which the holes 14 are drilled and whose hose chamber or interior forms the distribution channel 34.
  • the body 16 may be a part of the housing 40 or a housing part attached to this housing 40 of the sprayer 2, or an additional body 16 as shown in FIGS. 1 and 2.
  • This additional body 16 is attached to the housing 40 of the sprayer but may Also attached to another member which is fixed to the housing 40, for example, on a front end piece 42 which forms the spray or 4 and is attached to the housing 40.
  • the outlet end of the holes 14 is offset upstream relative to the spray outlet 4. According to another embodiment, however, the outlet end of the holes 14 could lie in the same transverse plane or downstream of the transverse plane, in which also the Spray outlet 4 is located. It is essential that the shaping air stream 11 envelops the spray stream 8 so close to the spray outlet 4 that no coating material particles can escape from the coating material stream radially outwards or backwards onto the outer peripheral areas of the spray device
  • the holes 14 can be made to a predetermined size with much greater accuracy than gaps extending circumferentially about the axial center axis 20. Furthermore, fewer holes pose the risk of dimensional changes due to temperature effects and external mechanical influences, for example impacts due to impacts on other objects.
  • the body 16, which is provided with the holes 14, is secured to the housing 40 by one or more members 44, preferably webs with gaps between them, such that the body 16 is supported by the housing 40 directly or via intermediate members.
  • an ambient air passageway 50 is provided spaced radially inwardly relative to the holes 14, which deviates from an ambient air entry point 52 extending beyond the body 16 having the holes 14 to a front of the body 16
  • Air outlet 54 extends and which extends in the form of one or more slots or other openings around the flow path of the coating material 6, separated from this flow path, and thus around the axial center axis 20 around, so that ambient air 56 from the rear air inlet point 52 to the front air outlet point 54 is sucked through the ambient air passage 50 by the suction effect of the coating material spray stream 8 and / or by the suction effect of the shaping compressed air jets 22 and the shaping air stream 11.
  • This ambient air passage 50 prevents backflow of coating material particle On the outer surfaces of the sprayer and its Body 16 containing the holes 14. This prevents contamination of these parts.
  • all the holes 14 have fluid communication with each other through the compressed air distribution channel 34 with a compressed air inlet port 62.
  • two or more groups of such holes 14 may be in fluid communication with each other through a portion of the distribution channel 34, the portions being fluidly separated from one another and each portion having its own compressed air inlet port 62. This allows a finer adjustment of the amount of compressed air emerging from the holes 14 per unit of time, preferably in that the same amount of compressed air flows out of all the holes per unit of time, or according to another embodiment, different amounts of compressed air flow out per unit of time.
  • the opening cross-section of the distribution channel 34 (or its separate sections) and the opening cross-sections of the holes 14 are coordinated so that from all holes 14, the same amount of compressed air per unit time can flow.
  • the amount of compressed air exiting the holes 14 per unit time is dependent on the flow resistance in the distribution channel 34 between the inlet port 62 and the respective hole 14.
  • An equal amount of compressed air per unit time can be achieved at all holes 14 in that either the distribution channel 34 in the direction of the nearest hole 14 to the remote hole 14 has an increasingly smaller resistance or preferably in that the holes have an increasingly larger opening cross-section with increasing distance from the compressed air inlet opening 62.
  • the hole 14 which is the shortest flow path from the inlet opening 62, the smallest opening cross-section, and the farthest hole 14 has the largest opening cross-section.
  • such measures are technically complex and expensive. They can also be used in the invention.
  • the opening cross-sections in the manner mentioned so small that even without such measures on all holes 14 an equal shaping air flow rate per unit time is achieved.
  • All embodiments of the invention are suitable for all types of sprayers for coating material, in particular for powdery coating material, for example for sprayers with a spray outlet in the form of a round jet nozzle or flat jet nozzle, with cylindrical or funnel-like shape, with or without baffle body 60 or bluff body, and also for sprayers whose spray outlet 4 is provided with or formed by a rotary body.
  • the invention is also suitable for corona spray devices, in which corona discharges are generated at the at least one high-voltage electrode 23, 24, 25, and also for so-called tribo-spraying devices, in which the electrostatic charge of the spray coating material particles is generated in the coating material channel 2 by friction ,
  • the invention enables a homogeneous air distribution of the shaping compressed air to the spray stream 8 around. For this purpose, only a small amount of compressed air per unit of time is needed.
  • the shaping air stream 11 produced according to the invention has a stabilizing effect on the spray stream 8, which has the shape of a spray cloud rather than a spray jet.
  • This spray stream 8 or spray cloud is significantly less sensitive to air currents in a coating booth than in the prior art. This has the further advantage that the order efficiency of the coating powder on an object to be coated and the coating quality, eg. B. Bechichtungsmaschine be substantially increased.
  • Sprayers of this type are commonly referred to as a spray gun or spray gun, both when provided with a handle for manual operation, as well as when they are straight or angular automatic guns are formed, which are held by a Vorrichtuhg, z. B. from a robot, Hubmenr or stationary carrier.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (10)

  1. Dispositif de pulvérisation pour un matériau de revêtement (6), en particulier de la poudre de revêtement, contenant un conduit de matériau de revêtement (2) ; une sortie de pulvérisation (4) à l'extrémité aval du conduit de matériau de revêtement (2) pour pulvériser le matériau de revêtement (6) sur un objet à revêtir ; une sortie d'air (10), qui s'étend à proximité de la sortie de pulvérisation (4) autour de la trajectoire d'écoulement du matériau de revêtement (6), séparément de la trajectoire d'écoulement, et qui est réalisée pour produire un courant d'air (11) à partir d'air comprimé ; la sortie d'air (10) étant formée par un grand nombre de trous (14) dans un corps (16), lesquels sont disposés de manière répartie tout autour de la trajectoire d'écoulement du matériau de revêtement (6), séparément de celle-ci, et sont tournés vers l'avant vers le jet de pulvérisation (8) du matériau de revêtement ;
    un passage d'air ambiant (50) étant prévu de manière décalée radialement vers l'intérieur à une certaine distance par rapport aux trous (14), lequel s'étend depuis un point d'entrée d'air ambiant (52) placé derrière le corps (16) dans lequel sont formés les trous (14) jusqu'à un point de sortie d'air (54) placé devant le corps (16) dans lequel sont formés les trous (14), et s'étend d'une seule pièce ou sous forme de plusieurs ouvertures tout autour de la trajectoire d'écoulement du matériau de revêtement (6), séparément de cette trajectoire d'écoulement, de sorte que l'air ambiant (56) peut être aspiré à travers le passage d'air ambiant (50) du point d'entrée d'air arrière (52) au point de sortie d'air avant (54), par effet d'aspiration d'écoulement du jet de pulvérisation de matériau de revêtement (8) et/ou par effet d'aspiration d'écoulement du courant d'air (11),
    caractérisé en ce que
    la sortie d'air (10) est réalisée sous forme de sortie d'air de formation pour l'air comprimé de formation, afin de produire à partir d'air comprimé le courant d'air (11) sous forme d'un courant d'air de formation (11) enveloppant le jet de pulvérisation (8) de matériau de revêtement ; et en ce qu'au moins une électrode (23, 24, 25) est disposée dans la trajectoire d'écoulement du matériau de revêtement sur ou à proximité de la sortie de pulvérisation (4), laquelle est raccordée ou peut être raccordée à un générateur de haute tension (26) pour produire la charge électrostatique du matériau de revêtement (6).
  2. Dispositif de pulvérisation selon la revendication 1,
    caractérisé en ce que
    le corps (16) est non divisé au niveau des trous (14).
  3. Dispositif de pulvérisation selon la revendication 1 ou 2, caractérisé en ce que l'on prévoit au moins dix ou davantage des trous (14).
  4. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance (18) entre les trous (14), vue dans le sens périphérique autour de la trajectoire d'écoulement du matériau de revêtement (6), est plus grande d'un facteur cinq ou plus, de préférence d'au moins un facteur dix, que la taille d'ouverture des trous (14) dans cette direction périphérique.
  5. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la section transversale d'ouverture de chaque trou (14) est inférieure à 2,0 mm2, de préférence inférieure à 1,0 mm2 ou, plus préférablement, est inférieure à 0,5 mm2 ou inférieure à 0,3 mm2
  6. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les trous (14) présentent une section transversale ronde circulaire.
  7. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le corps (16) est un tuyau ou un tube, qui entoure la trajectoire d'écoulement du matériau de revêtement (6) séparément de celle-ci, et en ce que les trous (14) sont formés dans la paroi du tuyau ou du tube.
  8. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'extrémité de sortie des trous (14) est disposée en retrait vers l'amont par rapport à la sortie de pulvérisation (4).
  9. Dispositif de pulvérisation selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    tous les trous (14) ou des groupes de trous (14) sont en liaison fluidique avec un conduit de distribution d'air comprimé (34) respectif, qui présente au moins une ouverture d'entrée d'air comprimé (62).
  10. Dispositif de pulvérisation selon la revendication 9, caractérisé en ce que
    la section transversale d'ouverture du conduit de distribution (34) et les sections transversales d'ouverture des trous (14) sont adaptées mutuellement de telle sorte que la même quantité d'air comprimé par unité de temps puisse s'écouler hors de tous les trous (14).
EP04007899A 2003-05-05 2004-04-01 Dispositif de revêtement de poudre par pulvérisation Expired - Lifetime EP1475159B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10319916 2003-05-05
DE10319916A DE10319916A1 (de) 2003-05-05 2003-05-05 Sprühgerät für Beschichtungsmaterial, insbesondere Beschichtungspulver

Publications (2)

Publication Number Publication Date
EP1475159A1 EP1475159A1 (fr) 2004-11-10
EP1475159B1 true EP1475159B1 (fr) 2006-08-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04007899A Expired - Lifetime EP1475159B1 (fr) 2003-05-05 2004-04-01 Dispositif de revêtement de poudre par pulvérisation

Country Status (13)

Country Link
US (1) US7478763B2 (fr)
EP (1) EP1475159B1 (fr)
JP (1) JP2004330190A (fr)
KR (1) KR100636003B1 (fr)
CN (1) CN1572376A (fr)
AT (1) ATE337857T1 (fr)
AU (1) AU2004201870B2 (fr)
CA (1) CA2466245C (fr)
DE (2) DE10319916A1 (fr)
ES (1) ES2271728T3 (fr)
NZ (1) NZ532761A (fr)
PT (1) PT1475159E (fr)
TW (1) TWI278353B (fr)

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CN114832960A (zh) * 2022-05-23 2022-08-02 佛山展弘智能科技有限公司 一种高速静电粉末喷涂旋杯的涡轮杯头

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ES2821105T3 (es) * 2015-10-23 2021-04-23 Nhk Spring Co Ltd Dispositivo de pulverización de revestimiento para estabilizador, equipo de revestimiento y procedimiento de revestimiento
US20180345300A1 (en) * 2017-05-31 2018-12-06 Nike, Inc. Air Masking Nozzle
KR102115577B1 (ko) * 2019-11-28 2020-05-27 주식회사 보국강업 고품질 분체도장 장치

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055660A1 (de) 2011-11-23 2013-05-23 P+S Pulverbeschichtungs- Und Staubfilteranlagen Gmbh Verfahren zum Ausbringen von Pulver mittels einer Pulversprühpistole und Pulversprühpistole zur Durchführung des Verfahrens
WO2013075703A1 (fr) 2011-11-23 2013-05-30 P+S Pulverbeschichtungs- Und Staubfilteranlagen Gmbh Procédé de distribution de poudre au moyen d'un pistolet à poudre et pistolet à poudre pour mettre en œuvre ce procédé
CN114832960A (zh) * 2022-05-23 2022-08-02 佛山展弘智能科技有限公司 一种高速静电粉末喷涂旋杯的涡轮杯头

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PT1475159E (pt) 2007-01-31
ATE337857T1 (de) 2006-09-15
EP1475159A1 (fr) 2004-11-10
KR100636003B1 (ko) 2006-10-18
DE502004001303D1 (de) 2006-10-12
CN1572376A (zh) 2005-02-02
JP2004330190A (ja) 2004-11-25
CA2466245C (fr) 2008-04-22
DE10319916A1 (de) 2004-11-25
US7478763B2 (en) 2009-01-20
US20050001061A1 (en) 2005-01-06
CA2466245A1 (fr) 2004-11-05
NZ532761A (en) 2004-12-24
AU2004201870A1 (en) 2004-11-25
TW200507943A (en) 2005-03-01
ES2271728T3 (es) 2007-04-16
TWI278353B (en) 2007-04-11
AU2004201870B2 (en) 2005-10-13

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