WO2008089608A1 - Procédé de revêtement de fil par électrophorèse et appareil pour mettre en oeuvre ledit procédé - Google Patents

Procédé de revêtement de fil par électrophorèse et appareil pour mettre en oeuvre ledit procédé Download PDF

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Publication number
WO2008089608A1
WO2008089608A1 PCT/CN2007/001596 CN2007001596W WO2008089608A1 WO 2008089608 A1 WO2008089608 A1 WO 2008089608A1 CN 2007001596 W CN2007001596 W CN 2007001596W WO 2008089608 A1 WO2008089608 A1 WO 2008089608A1
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WO
WIPO (PCT)
Prior art keywords
electrophoresis
electrophoretic coating
linear material
workpiece
tank
Prior art date
Application number
PCT/CN2007/001596
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English (en)
Chinese (zh)
Inventor
Zailiang Li
Original Assignee
Wuhan Kelier Chemical Industry Ltd.
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 Wuhan Kelier Chemical Industry Ltd. filed Critical Wuhan Kelier Chemical Industry Ltd.
Publication of WO2008089608A1 publication Critical patent/WO2008089608A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
    • C25D13/16—Wires; Strips; Foils

Definitions

  • the invention relates to a method and a device for electrophoretic coating technology of materials, in particular to electrophoresis of a linear material (such as a metal material such as a cable or a steel wire and a non-metallic linear material but specially processed into a conductor). Paint technology methods and complete sets of equipment. Background technique
  • the current electrophoretic coating technology mainly processes electrophoresis of workpieces with simple and easy-to-paint workpieces.
  • linear materials such as cables, steel wires, etc., and non-metallic linear materials.
  • the anti-corrosion treatment of various types of wires which are specially treated as electric conductors cannot be treated by conventional electrophoresis techniques, and other treatment methods in the prior art cannot better solve the electrophoresis of such materials and the anti-corrosion problems of the surfaces thereof.
  • the object of the present invention is to provide an electrophoretic coating technology and a complete set of equipment for a linear material (such as a metal material such as a cable or a steel wire and a non-metallic linear material but specially processed to be an electrical conductor) in view of the defects of the prior art. It completely solves the problem of electrophoretic coating technology of linear materials, so that the above materials meet the anti-corrosion requirements.
  • a linear material such as a metal material such as a cable or a steel wire and a non-metallic linear material but specially processed to be an electrical conductor
  • Another object of the present invention is to provide an apparatus for electrophoretic coating of linear materials.
  • the object of the present invention is achieved by the following technical solutions: it adopts a cathodic electrophoresis process or an anodic electrophoresis process, and specifically includes the following steps:
  • the conductive device is connected to the negative electrode or the positive electrode of the electrophoresis power source;
  • the anode or the cathode of the electrophoresis device is connected to the positive or negative electrode of the power source as an anode or a cathode system;
  • the linear material described therein is a metal conductor wire or a wire of a non-metal processed into a conductor.
  • the metal conductor wire is preferably a wire, an aluminum wire, a copper wire or a steel wire.
  • the non-metallic linear material is preferably a fiber rope or a plastic rope.
  • the electrophoretic coating used in the electrophoresis process comprises polybutadiene resin, phenolic resin, epoxy resin, acrylic acid or polyurethane.
  • the electrophoretic coatings used in the electrophoresis process include colorless transparent, matte colorless or various color coatings, as well as flashing colors, pearlescent colors, and electrophoretic coatings with dyes or pigments.
  • the electrophoretic coating described therein is added with a filler and an auxiliary agent for enhancing the performance of the electrophoretic coating.
  • the electrophoretic coating used in the electrophoresis process comprises a thermosetting or photosensitive electrophoretic coating.
  • the material of the anode plate used in the cathodic electrophoresis process or the material of the cathode plate used in the anodic electrophoresis process is a stainless steel, iron piece, aluminum piece, copper piece or non-metal material metallized electrically conductive conductor piece, the shape of which is Plate system, tubular system or bare plate.
  • the electrophoretic coating apparatus of the present invention comprises a unwinder and a winder, and an electrophoresis device is disposed between the unwinder and the winder.
  • the electrophoresis tank device comprises an electrophoresis main tank and an electrophoresis storage tank, and a front end of the electrophoresis main tank is provided with a conductive device, and the conductive device is connected with the linear material.
  • the electrophoresis tank device can adopt two forms: the first one is that the electrophoresis main tank is placed inside the electrophoresis storage tank, and is a large trough sleeve shape, and the electrophoresis main tank has parallel or longitudinal slots, which can Through the linear material, the upper and lower sides of the parallel slot or the left and right sides of the longitudinal slot have an anode or cathode system, and the parallel slot or the longitudinal slot is provided with a deflector on both sides, and the function of the drain plate is to flow out from the slot The electrophoretic paint flows evenly to the electrophoresis storage tank below.
  • the power circulation pump installed on the electrophoresis storage tank is connected to the electrophoresis main tank through a conveying pipe, and the electrophoresis main tank is provided with an overflow pipe, and the overflow pipe is connected with the electrophoresis storage tank. Electrophoresis main bath excess electrophoresis The paint then overflows through the overflow pipe to the electrophoresis storage tank. This forms a closed loop system.
  • the second type is that the electrophoresis main tank and the electrophoresis storage tank are separated and independent, adopting a double-slot or multi-slot structure, and the electrophoresis main groove has parallel or longitudinal slots, which can pass through the linear material, parallel to the upper surface of the slot and
  • the left or right side of the lower or longitudinal slot has an anode or cathode system, and the parallel slot or the longitudinal slot is provided with a drainage plate on both sides.
  • the direction of the linear material passing through the main slot is provided with a collecting small groove, and the volume of the collecting small groove can be collected. Large or small, can meet the requirements of the electrophoretic paint flowing out of the slot can be collected and transported to the electrophoresis storage tank.
  • the collecting trough is provided with a pipeline, and the pipeline is connected with the electrophoresis storage tank.
  • the power circulation pump installed on the electrophoresis storage tank is connected to the electrophoresis main tank through the conveying pipe, and the electrophoresis main tank is provided with an overflow pipe, and the overflow pipe is connected with the electrophoresis storage tank.
  • the excess electrophoretic paint in the main electrophoresis tank overflows into the electrophoresis reservoir through the overflow tube. This forms a closed loop system.
  • a flattening machine, a positioning machine, a pretreatment machine, a water washing machine and a baking machine are arranged between the unwinder and the winder.
  • the invention can open a plurality of parallel slots or longitudinal slots in the electrophoresis main groove, and install a plurality of parallel or longitudinal plate systems, so that a plurality of linear materials can be simultaneously electrophoresed.
  • the invention completely solves the electrophoresis treatment problem of the linear materials such as the metal materials such as cables, steel wires and the like and the non-metal linear materials, but has been specially treated to become the electrical conductors, and the surface of the above materials is anticorrosive by electrophoretic coating.
  • Figure 1 is a process flow and equipment layout diagram of the present invention
  • FIG. 3 is a structural diagram of an electrophoresis device of the present invention
  • FIG. 4 is a view showing another embodiment of an electrophoresis apparatus according to the present invention.
  • FIG. 5 is still another embodiment of the electrophoresis device device of the present invention.
  • FIG. 6 is a view showing still another embodiment of the electrophoresis device device of the present invention.
  • the electrophoretic coating complete equipment of the present invention comprises a unwinder 1 and a winder 2, and an electrophoresis device is arranged between the unwinder 1 and the winder 2.
  • the electrophoresis tank device can take two forms: As shown in FIG. 3, the first type is that the electrophoresis main tank 3 is placed inside the electrophoresis storage tank 4, which is in the shape of a large trough sleeve, and the electrophoresis main tank 3 has a horizontal slot 5, which can pass through a linear material.
  • An anode or cathode system 6 is arranged above and below the parallel slot 5, and a parallel plate 5 is provided on both sides of the parallel slot 5, and the action of the bowing plate 7 serves to uniformly drain the electrophoretic paint flowing out of the slot 5 to the lower side.
  • the power circulation pump 8 mounted on the electrophoresis storage tank 4 is connected to the electrophoresis main tank 3 through a transfer pipe 9, and the electrophoresis main tank 3 is provided with an overflow pipe 10, and the overflow pipe 10 is connected to the electrophoresis storage tank 4.
  • the excess electrophoretic paint of the electrophoresis main tank 3 is again overflowed to the electrophoresis storage tank 4 through the overflow pipe 10. This forms a closed loop system.
  • the present invention can also employ longitudinal slots, and the anode or cathode system 6 is also longitudinally disposed when longitudinal slots are used.
  • the second type is that the electrophoresis main tank 3 and the electrophoresis storage tank 4 are separated and independent, and adopts a double-slot or multi-slot structure, and the electrophoresis main tank has horizontal slots, which can pass through a linear material.
  • An anode or a cathode system is arranged above and below the horizontal slot, and a drain plate 7 is arranged on both sides of the horizontal slot.
  • the direction of the linear material passing through the main slot of the electrophoresis is provided with a collecting small groove 11, and the volume of the collecting small groove 11 can be large or small.
  • the electrophoretic paint that can meet the flow from the slot can be collected and transported to the electrophoresis storage tank.
  • the collecting trough is provided with a pipe 12, and the pipe 12 is connected with the electrophoresis storage tank 4.
  • the power circulation pump installed on the electrophoresis storage tank is connected to the electrophoresis main tank 3 through a conveying pipe, and the electrophoresis main tank 3 is provided with an overflow pipe 10, an overflow pipe 10 is connected to the electrophoresis storage tank 4.
  • the excess electrophoretic paint in the main electrophoresis tank overflows into the electrophoresis reservoir through the overflow tube. This forms a closed loop system.
  • the present invention can also employ longitudinal slots, and the anode or cathode system 6 is also longitudinally disposed when longitudinal slots are used.
  • a flattening machine 14, a positioning machine 15, a front processing machine 16, a water washing machine 17, and a baking machine 18 are disposed between the unwinding machine 1 and the winder 2.
  • a conductive device 13 is mounted in front of the slot of the electrophoresis main slot.
  • Example 1 In the case of planar transverse cathodic electrophoresis:
  • the linear material workpiece 19 is an electrophoretic member, which is a cathode system, and is connected to a negative electrode (-) of the electrophoresis source through a conductive device 13.
  • the anode system is connected to the positive (+) power supply.
  • the anode is a fixed connection, and the cathode is crimped or clamped with a resilient metal material, but does not affect the continuous movement of the workpiece.
  • Electrophoretic paint that passes the linear material workpiece 19 in parallel through the electrophoresis main tank 4 In the solution, the linear material workpiece is passed through two parallel slots 5 of the electrophoresis main groove, and the moving power supply is started to move the linear material workpiece in parallel; when the linear material workpiece passes through the leveling machine, the workpiece is leveled evenly by leveling. The workpiece is transported in the next process. When the linear material workpiece passes through the positioning machine, the workpiece is moved up and down by positioning, and the workpiece is conveyed in the next process after positioning.
  • different processing methods can be adopted according to different linear materials. At the same time, different treatment methods can be adopted according to the degree of surface contamination of different materials.
  • the pretreatment method can be degreasing and degreasing treatment: If the linear material has no other performance requirements, it can be degreased and degreased only to make the surface clean, and the workpiece can be transported in the next process.
  • the pre-treatment method can be electroplating treatment: If the linear material has other performance requirements, the surface can be plated differently according to requirements, and the surface can be plated with different metal layers, and then the workpiece can be transported in the next process. Such as galvanized linear materials.
  • the pretreatment method can be phosphating: If the linear material has other performance requirements, the surface can be phosphatized according to the requirements, the surface can be differently praged, and then the workpiece can be transported to the next process. . Such as wire and so on.
  • the pretreatment method can be oxidation treatment: If the linear material has other performance requirements, the surface can be oxidized differently according to requirements, and the surface can be obtained with different oxide layers, and then the workpiece can be transported in the next process. Such as aluminum wire.
  • the surface of the workpiece is cleaned by washing with tap water or purified water, and the liquid and impurities brought out by the previous process are cleaned to clean the surface of the workpiece, and then the workpiece is conveyed in the next process.
  • the power circulation pump is started, the electrophoresis paint of the electrophoresis storage tank is twitched, and the workpiece is completely immersed in the electrophoretic paint.
  • the main channel of the electrophoresis has an overflow port on the anode system, and the excess electrophoretic paint can be drained from the overflow port. It flows out and flows into the electrophoresis storage tank to ensure that the delivery of the power circulation pump is too large, resulting in a full tank phenomenon.
  • the overflow pipe is opened on the side or other position, but it cannot affect the electrophoresis process.
  • the electrophoretic paint can be continuously supplied, and the electrophoresis workpiece can be completely immersed in the electrophoretic paint. Electrophoresis is carried out by electrophoresis. After the workpiece leaves the electrophoresis tank, rinse the surface of the workpiece with ultrafiltration water or pure water to rinse off the surface float paint. The linear material workpiece is baked in parallel into the baking machine 18, and the electrophoretic paint film is leveled and solidified. Will Linear material After the workpiece has left the oven, it is forced to cool with cold air. After the linear material workpiece is cooled and dried, it can be packaged in rolls.
  • the apparatus of the present invention can simultaneously electrophoreize single-volume and multi-roll linear materials.
  • the thickness of the electrophoretic paint film can be guaranteed by controlling the voltage and time and other conditions.
  • Example 2 In the case of a planar lateral anodic electrophoresis process.
  • the linear material workpiece is an electrophoretic element, which is an anode system, and is connected to the positive electrode (+) of the electrophoresis source.
  • the cathode system is connected to the negative (-) power supply.
  • the cathode is a fixed connection, and the anode is crimped or clamped with a resilient metal material, but does not affect the continuous movement of the workpiece.
  • the linear material workpiece is passed through the electrophoretic paint solution of the electrophoresis tank, and the linear material workpiece is passed through the two parallel slots of the electrophoresis tank. Start moving the power supply and let the coil workpiece move in parallel.
  • Linear material workpiece When passing through the leveling machine, the workpiece is leveled evenly by leveling, and the workpiece is conveyed in the next process.
  • the linear material workpiece passes through the positioning machine, the workpiece is moved up and down by positioning, and the workpiece is conveyed in the next process after positioning.
  • different treatment methods can be adopted according to different coil materials. At the same time, different treatment methods can be adopted according to the degree of surface contamination of different materials.
  • the pretreatment method is the same as that of the first embodiment.
  • the main channel of the electrophoresis has an overflow port on the upper part of the anode system, and the excess electrophoretic paint can flow out from the overflow port and flow into the electrophoresis storage tank to ensure that the power circulation pump is too large to cause full Slot phenomenon.
  • the overflow pipe is open to the side or other position, but it cannot affect the electrophoresis process. As long as the full-slot phenomenon is not caused and the electrophoretic coating can be continuously supplied, the electrophoresis workpiece can be completely immersed in the electrophoretic paint.
  • the electrophoresis power is turned on and electrophoresis is performed.
  • the linear material workpiece leaves the electrophoresis tank, rinse the surface of the workpiece with ultrafiltration water or pure water to rinse off the surface paint.
  • the linear material is baked in parallel into the baking machine 18, and the electrophoretic paint film is leveled and solidified. After the linear material workpiece leaves the oven, it is forced to cool with cold air. After the linear material is cooled and dried, it can be packaged in rolls.
  • Example 3 In the vertical longitudinal cathodic electrophoresis process: the linear material workpiece is an electrophoresis member, which is a cathode system, and is connected to the negative electrode (-) of the electrophoresis source.
  • the anode system is connected to the positive (+) power supply.
  • the anode is a fixed connection, and the cathode is crimped or clamped with a resilient metal material, but does not affect the continuous movement of the workpiece.
  • the linear material workpiece is erected longitudinally through the electrophoretic paint solution of the electrophoresis tank, and the linear material workpiece is passed through two vertical longitudinal grooves of the electrophoresis tank. Hole.
  • the mobile power supply is activated to move the linear material workpiece vertically.
  • the leveling machine the workpiece is leveled evenly by leveling, and the workpiece is conveyed in the next process.
  • the linear material workpiece passes through the positioning machine, the workpiece is moved up and down by positioning, and the workpiece is conveyed in the next process after positioning.
  • different processing methods can be adopted according to different linear materials.
  • different treatment methods can be adopted according to the degree of surface contamination of different materials.
  • the pretreatment method is the same as that of the first embodiment.
  • the power circulation pump is started, the electrophoresis paint of the electrophoresis storage tank is twitched, and the workpiece is completely immersed in the electrophoretic paint.
  • the main channel of the electrophoresis has an overflow port on the cathode system, and the excess electrophoretic paint can be drained from the overflow port. It flows out and flows into the electrophoresis storage tank to ensure that the delivery volume of the power pump is too large, resulting in a full tank phenomenon.
  • the overflow pipe is open to the side or other positions, but it does not affect the electrophoresis process.
  • the electrophoresis workpiece can be completely immersed in the electrophoretic paint.
  • the electrophoresis power source is turned on for electrophoresis. After the workpiece leaves the electrophoresis tank, rinse the surface of the workpiece with ultra-filtered water or pure water to rinse off the surface varnish.
  • the linear material workpiece is longitudinally baked into the baking machine 18 to be baked, and the electrophoretic paint film is leveled and solidified. After the workpiece of the linear material is removed from the oven, it is forced to cool with cold air. After the linear material workpiece is cooled and dried, it can be packaged in rolls.
  • the linear material workpiece 19 is an electrophoretic member, which is an anode system, and is connected to the positive electrode (+) of the electrophoresis source.
  • the cathode system is connected to the negative pole of the power supply (-).
  • the cathode is a fixed connection, and the anode is crimped or clamped with a resilient metal material, but does not affect the continuous movement of the workpiece.
  • the linear material workpiece is erected longitudinally through the electrophoretic paint solution of the electrophoresis tank, and the linear material workpiece is passed through the two vertical longitudinal slots of the electrophoresis tank.
  • the mobile power supply is activated to allow the linear material workpiece to move vertically.
  • the linear material workpiece passes through the leveling machine, the workpiece is leveled and hung by leveling, and the workpiece is conveyed in the next process.
  • the linear material workpiece passes through the positioning machine, the workpiece is moved up and down by positioning, and the workpiece is conveyed to the next process after positioning.
  • different processing methods can be selected according to different linear materials.
  • different treatment methods can be adopted according to the degree of surface contamination of different materials.
  • the pretreatment method is the same as that of the first embodiment.
  • the power circulation pump is started, the electrophoretic paint of the electrophoresis storage tank is twitched, and the workpiece is completely immersed in the electrophoretic paint, and the overflow port is opened on the main channel of the electrophoresis main channel, and the excess electricity is
  • the swimming lacquer can flow out from the overflow pipe and flow into the electrophoresis storage tank to ensure that the delivery of the power pump is too large, resulting in a full tank phenomenon.
  • the overflow pipe is open to the side or other position, but it does not affect the electrophoresis process. As long as the full-slot phenomenon is not caused, the electrophoretic coating can be continuously supplied, and the electrophoresis workpiece can be completely immersed in the electrophoretic paint.
  • the electrophoresis power source is turned on for electrophoresis. After the workpiece leaves the electrophoresis tank, rinse the surface of the workpiece with ultra-filtered water or pure water to rinse off the surface float paint.
  • the linear material workpiece is longitudinally baked into the baking machine 18, and the electrophoretic paint film is leveled and solidified. After the linear material workpiece is removed from the oven, it is forced to cool with cold air. After the linear material workpiece is cooled and dried, it can be packaged in rolls.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un procédé de revêtement de fil par électrophorèse et un appareil pour mettre en oeuvre ledit procédé. Le procédé permet d'utiliser un processus d'électrophorèse anodique ou cathodique. Un fil traverse parallèlement ou longitudinalement des peintures électrophorétiques dans un bain d'électrophorèse. Traiter un fil par électrophorèse s'avère difficile du fait qu'il fond complètement. Le fil précité peut être, par exemple, un fil métallique, tel qu'un câble et un fil d'acier ou un fil non conducteur qui peut devenir conducteur via des traitements particuliers. La surface du fil précité peut devenir anticorrosive par l'intermédiaire d'un revêtement électrophorétique.
PCT/CN2007/001596 2007-01-18 2007-05-16 Procédé de revêtement de fil par électrophorèse et appareil pour mettre en oeuvre ledit procédé WO2008089608A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100513074A CN101037789A (zh) 2007-01-18 2007-01-18 线形材料的电泳涂装技术方法及成套设备
CN200710051307.4 2007-01-18

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WO2008089608A1 true WO2008089608A1 (fr) 2008-07-31

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CN (1) CN101037789A (fr)
WO (1) WO2008089608A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN108193258A (zh) * 2018-03-26 2018-06-22 青岛海瑞涂装设备有限公司 一种触发电极挂具

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CN103046104A (zh) * 2012-12-18 2013-04-17 包头市联德石油机械有限公司 一种抽油杆表面防护装置及防护方法
CN103173839B (zh) * 2013-03-22 2015-11-18 湖南永盛新材料股份有限公司 一种金属带材单面连续电泳沉积的方法及装置
CN103820835B (zh) * 2013-11-12 2017-04-19 浙江卓逸铝业有限公司 一种铝合金型材的彩色电泳涂漆工艺
CN105316746A (zh) * 2014-06-27 2016-02-10 天津市鑫泰旺金属制品有限公司 一种金属线材电泳装置
CN109137048A (zh) * 2018-09-04 2019-01-04 湖南省霖辉高新材料科技有限公司 一种用于扎丝仿锌色上镀装饰工艺及用料组合物
CN112498788A (zh) * 2020-10-26 2021-03-16 无锡市明星精密线材有限公司 一种铜丝生产加工用卷收打包装置

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GB634187A (en) * 1943-04-28 1950-03-15 Sylvania Electric Prod Improvements relating to the coating of metal filaments with electron-emissive materials
GB1278153A (en) * 1969-06-25 1972-06-14 Kureha Chemical Ind Co Ltd Coating electroconductors with polyvinylidene and polyvinyl fluorides
JPS6362898A (ja) * 1986-09-01 1988-03-19 Kokoku Kousensaku Kk 被覆線条体の製造方法
CN1788324A (zh) * 2003-05-12 2006-06-14 日本油漆株式会社 方形导线的涂布方法和方形导线的绝缘导线

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Publication number Priority date Publication date Assignee Title
GB634187A (en) * 1943-04-28 1950-03-15 Sylvania Electric Prod Improvements relating to the coating of metal filaments with electron-emissive materials
GB1278153A (en) * 1969-06-25 1972-06-14 Kureha Chemical Ind Co Ltd Coating electroconductors with polyvinylidene and polyvinyl fluorides
JPS6362898A (ja) * 1986-09-01 1988-03-19 Kokoku Kousensaku Kk 被覆線条体の製造方法
CN1788324A (zh) * 2003-05-12 2006-06-14 日本油漆株式会社 方形导线的涂布方法和方形导线的绝缘导线

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Publication number Priority date Publication date Assignee Title
CN108193258A (zh) * 2018-03-26 2018-06-22 青岛海瑞涂装设备有限公司 一种触发电极挂具
CN108193258B (zh) * 2018-03-26 2023-09-08 青岛海瑞涂装设备有限公司 一种触发电极挂具

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