WO2008071051A1 - Electrophresis painting method for tubular and deep-hole or deep-concave metal workpiece - Google Patents
Electrophresis painting method for tubular and deep-hole or deep-concave metal workpiece Download PDFInfo
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- WO2008071051A1 WO2008071051A1 PCT/CN2007/001598 CN2007001598W WO2008071051A1 WO 2008071051 A1 WO2008071051 A1 WO 2008071051A1 CN 2007001598 W CN2007001598 W CN 2007001598W WO 2008071051 A1 WO2008071051 A1 WO 2008071051A1
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- electrophoretic coating
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- 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
- C25D13/14—Tubes; Rings; Hollow bodies
Definitions
- the invention relates to a metal surface electrophoretic coating method, in particular to a method for electrophoretic coating of a tube-shaped metal and a deep-hole deep-groove metal.
- the electrophoretic coating technology mainly adopts an ordinary electrophoresis treatment method, and the electrophoresis treatment generally has a simple workpiece structure and a relatively easy-to-paint workpiece, but due to the influence of the electrophoretic coating of the electrophoretic coating and the influence of the conductive efficiency, the tubular metal is applied.
- the object of the present invention is to provide a method for electrophoretic coating of tubular metal and deep hole deep recessed metal, which solves the defects of the prior art method, and solves the problem of metal tubular parts and deep hole depth.
- the object of the present invention is achieved by the following technical solutions: in the cathodic electrophoresis process, an auxiliary anode is placed inside the deep hole of the metal member; in the anodic electrophoresis process, a hole is placed inside the deep hole of the metal member. Auxiliary cathode.
- the metal parts are round tubes, square tubes, tubes with inner hole shapes (such as iron tubes, copper tubes, galvanized tubes, aluminum tubes and other metal conductor tubes) or deep hole deep recesses (such as Fuel tank, water tank), and specially treated non-metallic conductive parts, such as plastic, glass, wood, stone, fiber, etc., are sprayed, dip coated and other treatments into electrical conductors;
- the electrophoretic coating used is polybutadiene Resin, phenolic resin, epoxy resin, acrylic resin or polyurethane; the electrophoretic coating used therein also contains an electrophoretic coating to which a filler or an auxiliary agent is added.
- Electrophoretic coatings also include colorless transparent, matte colorless, black, gray, white, red, yellow, green, blue, and flash, pearlescent and electrophoretic coatings with dyes and pigments; It also contains thermosetting coatings and photosensitive coatings.
- the auxiliary anode material is an electrically conductive conductor member, specifically an iron member, an aluminum member, a copper member or other metal conductor member, and a non-metallic material metallized electrically conductive conductor member.
- the workpiece (A) is an electrophoresis member, which is connected to the negative electrode (-) of the electrophoresis source, and the anode C is connected to the positive electrode (+) of the power source, and an auxiliary anode (B) is placed inside the tubular member.
- the auxiliary anode material is a metal or non-metal metallized conductor, which can pass current, and the auxiliary anode can be close to the inner wall of the pipe, but cannot be in direct contact with the workpiece (A).
- connection mode of the power anode wire and the auxiliary anode may be connected at one end or may be connected at both ends.
- the workpiece (A) is an electrophoresis member, which is connected to the positive electrode (+) of the electrophoresis source, and the cathode C is connected to the negative electrode (-) of the power source, and an auxiliary cathode (B) is placed inside the tubular member.
- the auxiliary cathode material is a metal or non-metal metallized conductor that can pass current.
- the auxiliary cathode can be as close as possible to the inner wall of the pipe, but it cannot be in direct contact with the workpiece (A).
- Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary cathode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece.
- the connection mode of the power cathode wire and the auxiliary cathode may be connected at one end or may be connected at both ends.
- the invention has the advantages of simple process and wide application range, and the technical method of the invention can solve the electrophoresis treatment problem of the inner and outer walls and the inner and outer cavities of the tube type and deep hole deep concave parts, thereby completely solving the inner parts of such workpieces. , the outer wall and the internal and external cavity anti-corrosion problems.
- Figure 1 is a schematic view of a tubular metal part in a cathodic electrophoresis process.
- Figure 2 is a schematic view of the tube-shaped metal parts during the anodic electrophoresis process.
- Figure 3 is a schematic view of the deep hole deep recessed metal parts in the cathodic electrophoresis process.
- Figure 4 is a schematic view of the deep hole deep recessed metal parts during the anodic electrophoresis process.
- the electrophoretic coating may be a polybutadiene resin, a phenol resin, an epoxy resin, an acrylic resin or a polyurethane.
- Partial electrophoresis can be used to connect the anode and the auxiliary anode with a diverter switch.
- A. First electrophoresis the inside of the workpiece, connect the diverter switch to the auxiliary anode, and then electrophorese the inside of the workpiece. After that, the power switch will be switched to the anode and the outside of the workpiece will be electrophoresed.
- Simultaneous electrophoresis can also be used to turn on the power and simultaneously electrophorese the inside and outside of the workpiece.
- the thickness of the electrophoretic paint film can be guaranteed by controlling the voltage and time and other conditions.
- the specific steps of the present invention are as follows - 1. Connect the workpiece to the positive electrode (+) of the power supply.
- Partial electrophoresis can be used to connect the cathode to the auxiliary cathode with a diverter switch.
- A. First electrophoresis the inside of the workpiece, connect the diverter switch to the auxiliary cathode, and then electrophorese the inside of the workpiece. After that, the power switch will be switched to the cathode and the outside of the workpiece will be electrophoresed.
- Electrophoresis the outside of the workpiece connect the diverter switch to the anode, and then electrophorese the outside of the workpiece. After that, switch the power switch to the auxiliary anode and electrophorese the inside of the workpiece.
- Simultaneous electrophoresis can also be used to turn on the power and simultaneously electrophorese the inside and outside of the workpiece.
- the thickness of the electrophoretic paint film can be guaranteed by controlling the voltage and time and other conditions.
- the workpiece (A) is an electrophoresis member, which is connected to the negative electrode (-) of the electrophoresis source, and the anode C is connected to the positive electrode (+) of the power source.
- an auxiliary anode is placed inside the deep hole and the deep concave member ( B).
- the auxiliary anode material is a metal or non-metal metallized conductor that can pass current.
- the auxiliary anode can be far from the inner wall of the deep hole and deep recess, but it cannot be in direct contact with the workpiece (A).
- Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary anode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece.
- the connection between the power source anode wire and the auxiliary anode can be connected at one end or at both ends. The specific steps are the same as in the first embodiment.
- the workpiece (A) is an electrophoresis member, which is connected to the positive electrode (+) of the electrophoresis source, and the cathode C is connected to the negative electrode (-) of the power source.
- an auxiliary cathode is placed inside the deep hole and the deep concave member.
- the auxiliary cathode material is a metal or non-metal metallized conductor that can pass current. The auxiliary cathode can be far from the inner wall of the deep hole and deep recess, but it cannot be in direct contact with the workpiece (A).
- Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary cathode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece.
- the connection mode of the power cathode wire and the auxiliary cathode may be connected at one end or may be connected at both ends. The specific steps are the same as in the second embodiment.
Abstract
Electrophoresis painting method for metal surface is provided, which is especially for tubular and deep-hole or deep-concave metal work-piece. In the electrophoresis painting process, an auxiliary electrode is arranged inside the deep-hole of the metal workpiece. The present invention is simple and can be used in wide application, and the present method can solve the problem which involves in electrodepositing the inside and outside walls or surfaces of tubular and deep-hole or deep-concave metal work-piece, thus can thoroughly prevent the inside and outside walls or surfaces of such work-piece from corrosion.
Description
管件式金属及深孔深凹件金属的电泳涂装技术方法 Electrophoretic coating technique for pipe-shaped metal and deep-hole deep recessed metal
技术领域 Technical field
本发明涉及一种金属表面电泳涂装方法，具体地说是一种管件式 金属及深孔深凹件金属的电泳涂装技术方法。 The invention relates to a metal surface electrophoretic coating method, in particular to a method for electrophoretic coating of a tube-shaped metal and a deep-hole deep-groove metal.
背景技术 Background technique
电泳涂装技术自二十世纪六十年代发展及得到工业化应用以来， 由于其具有优良的高耐腐蚀性、高泳透率、高库仑效率、不溶解被涂 物、槽液稳定和自动化程度高等优势， 因此在汽车、摩托车、家用电 器、 仪表、 军工、 建材、 装饰五、 轻工和日用等行业获得广泛应用， 已逐步取代了常规的表面涂装技术，并成为当今世界最重要的涂装技 术方式之一。 Since the development of the electrophoretic coating technology in the 1960s and its industrial application, it has excellent high corrosion resistance, high throughput, high coulombic efficiency, insoluble coating, stable bath and high degree of automation. Advantages, and therefore widely used in the automotive, motorcycle, household appliances, instrumentation, military, building materials, decorative five, light industry and daily use industries, has gradually replaced the conventional surface coating technology, and become the most important in the world today. One of the techniques of painting.
目前的电泳涂装技术主要是采用普通的电泳处理方法，电泳处理 一般工件结构简单、较易涂装的工件，但由于受到电泳涂料的泳透力 的影响及导电效率的影响，针对管式金属件（如铁管，铜管，镀锌管， 铝管及其它金属导体的管式件）和深孔、深凹件金属（如油箱、水箱） 的内部防腐处理以及经过特殊处理的非金属导电件导体的防腐则无 法用常规电泳技术的处理，而其它处理方法也不能较好的解决此类部 件的内、 外壁及内、 外腔的防腐问题。 At present, the electrophoretic coating technology mainly adopts an ordinary electrophoresis treatment method, and the electrophoresis treatment generally has a simple workpiece structure and a relatively easy-to-paint workpiece, but due to the influence of the electrophoretic coating of the electrophoretic coating and the influence of the conductive efficiency, the tubular metal is applied. Internal corrosion protection of deep-hole, deep-groove metal (such as fuel tank, water tank) and specially treated non-metallic conductive parts (such as iron pipe, copper pipe, galvanized pipe, aluminum pipe and other metal conductor pipe fittings) The anti-corrosion of the conductor can not be processed by conventional electrophoresis technology, and other treatment methods can not solve the anti-corrosion problem of the inner and outer walls and the inner and outer cavities of such components.
发明内容 Summary of the invention
本发明的目的就是针对现有方法的缺陷，提供一种管件式金属及 深孔深凹件金属的电泳涂装技术方法，它解决了金属管式件及深孔深 The object of the present invention is to provide a method for electrophoretic coating of tubular metal and deep hole deep recessed metal, which solves the defects of the prior art method, and solves the problem of metal tubular parts and deep hole depth.
1 1
Stt^本
凹件内、 外壁及内、 外腔的电泳问题， 从而彻底解决此类工件的内、 外壁及内、 外腔的防腐问题。 Stt^ben The electrophoresis problems of the inner and outer walls of the concave member and the inner and outer cavities completely solve the anti-corrosion problem of the inner and outer walls and the inner and outer cavities of such workpieces.
本发明的目的是通过以下技术方案来实现的： 它是在阴极电泳工 艺时， 在金属件的深孔内部放入一个辅助阳极； 在阳极电泳工艺时， 在金属件的深孔内部放入一个辅助阴极。 The object of the present invention is achieved by the following technical solutions: in the cathodic electrophoresis process, an auxiliary anode is placed inside the deep hole of the metal member; in the anodic electrophoresis process, a hole is placed inside the deep hole of the metal member. Auxiliary cathode.
其中所述的金属件为圆管、方管、含有内孔形状的管件（如铁管， 铜管， 镀锌管， 铝管及其它金属导体的管式件）或深孔深凹件（如油 箱、 水箱）， 以及经过特殊处理的非金属导电件， 如塑料、 玻璃、 木 材、石材、纤维等经喷涂、浸涂及其他处理方法变为导电体； 所使用 的电泳涂料为聚丁二烯树脂、酚醛树脂、环氧树脂、丙烯酸树脂或聚 胺脂； 其中所使用的电泳涂料也包含了添加了填料或助剂的电泳涂 料。 电泳涂料还包含无色透明， 哑光无色， 黑色， 灰色， 白色， 红、 黄、绿、蓝各类彩色， 以及闪光色， 珠光色和添加染料和颜料的电泳 涂料； 所述的电泳涂料又包含热固性涂料、光敏性涂料。所述的辅助 阳极材料为可导电的导体件， 具体为铁件、铝件、铜件或其它金属导 体件以及非金属材料金属化处理可导电的导体件。 The metal parts are round tubes, square tubes, tubes with inner hole shapes (such as iron tubes, copper tubes, galvanized tubes, aluminum tubes and other metal conductor tubes) or deep hole deep recesses (such as Fuel tank, water tank), and specially treated non-metallic conductive parts, such as plastic, glass, wood, stone, fiber, etc., are sprayed, dip coated and other treatments into electrical conductors; the electrophoretic coating used is polybutadiene Resin, phenolic resin, epoxy resin, acrylic resin or polyurethane; the electrophoretic coating used therein also contains an electrophoretic coating to which a filler or an auxiliary agent is added. Electrophoretic coatings also include colorless transparent, matte colorless, black, gray, white, red, yellow, green, blue, and flash, pearlescent and electrophoretic coatings with dyes and pigments; It also contains thermosetting coatings and photosensitive coatings. The auxiliary anode material is an electrically conductive conductor member, specifically an iron member, an aluminum member, a copper member or other metal conductor member, and a non-metallic material metallized electrically conductive conductor member.
在阴极电泳工艺时：工件（A)为被电泳件，接电泳源的负极（-)， 阳极 C接电源正极（+)， 同时，在管式件内部放入一个辅助阳极（B)。 辅助阳极材料为金属或非金属经金属化的导体，可以通过电流，辅助 阳极与管件内管壁距离可远可近， 但不能与工件（A) 直接接触。 需 要用不导电的非导体物件如塑料，橡胶，木头及其它非导电体支撑或 者说阻隔辅助阳极同工件相碰及接触，同时此非导电体又是带有规则
的或者不规则的孔， 有利于电泳涂料进入工件内部。 电源阳极导线与 辅助阳极的联接方式可以单端相联接， 也可以两端相联接。 In the cathodic electrophoresis process, the workpiece (A) is an electrophoresis member, which is connected to the negative electrode (-) of the electrophoresis source, and the anode C is connected to the positive electrode (+) of the power source, and an auxiliary anode (B) is placed inside the tubular member. The auxiliary anode material is a metal or non-metal metallized conductor, which can pass current, and the auxiliary anode can be close to the inner wall of the pipe, but cannot be in direct contact with the workpiece (A). It is necessary to use non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials to support or block the auxiliary anode to collide with and contact the workpiece, and the non-conducting body has rules. Or irregular holes that facilitate the entry of the electrophoretic coating into the workpiece. The connection mode of the power anode wire and the auxiliary anode may be connected at one end or may be connected at both ends.
在阳极电泳工艺时：工件（A)为被电泳件，接电泳源的正极（+)， 阴极 C接电源负极（-)， 同时，在管式件内部放入一个辅助阴极（B)。 辅助阴极材料为金属或非金属经金属化的导体，可以通过电流。辅助 阴极与管件内管壁距离可远可近， 但不能与工件 （A) 直接接触。 需 要用不导电的非导体物件如塑料，橡胶，木头及其它非导电体支撑或 者说阻隔辅助阴极同工件相碰及接触，同时此非导电体又是带有规则 的或者不规则的孔， 有利于电泳涂料进入工件内部。 电源阴极导线与 辅助阴极的联接方式可以单端相联接， 也可以两端相联接。 In the anodic electrophoresis process, the workpiece (A) is an electrophoresis member, which is connected to the positive electrode (+) of the electrophoresis source, and the cathode C is connected to the negative electrode (-) of the power source, and an auxiliary cathode (B) is placed inside the tubular member. The auxiliary cathode material is a metal or non-metal metallized conductor that can pass current. The auxiliary cathode can be as close as possible to the inner wall of the pipe, but it cannot be in direct contact with the workpiece (A). Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary cathode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece. The connection mode of the power cathode wire and the auxiliary cathode may be connected at one end or may be connected at both ends.
本发明具有工艺简单、应用范围广的优点， 采用本发明的技术方 法可解决管件式、深孔深凹件的内、外壁及内、外腔的电泳处理问题， 从而彻底解决此类工件的内、 外壁及内、 外腔的防腐问题。 The invention has the advantages of simple process and wide application range, and the technical method of the invention can solve the electrophoresis treatment problem of the inner and outer walls and the inner and outer cavities of the tube type and deep hole deep concave parts, thereby completely solving the inner parts of such workpieces. , the outer wall and the internal and external cavity anti-corrosion problems.
附图说明 DRAWINGS
图 1为管件式金属件在阴极电泳工艺时的示意图 Figure 1 is a schematic view of a tubular metal part in a cathodic electrophoresis process.
图 2为管件式金属件在阳极电泳工艺时的示意图 Figure 2 is a schematic view of the tube-shaped metal parts during the anodic electrophoresis process.
图 3为深孔深凹件金属件在阴极电泳工艺时的示意图 Figure 3 is a schematic view of the deep hole deep recessed metal parts in the cathodic electrophoresis process.
图 4为深孔深凹件金属件在阳极电泳工艺时的示意图 Figure 4 is a schematic view of the deep hole deep recessed metal parts during the anodic electrophoresis process.
具体实施方式 detailed description
实施例 1 Example 1
如图 1所示， 本发明的具体步骤如下- As shown in Figure 1, the specific steps of the present invention are as follows -
1、 将工件连接电源的负极 （ -)。
2、 将辅助阳极放入工件内部。 1. Connect the workpiece to the negative (-) of the power supply. 2. Place the auxiliary anode inside the workpiece.
3、将辅助阳极连接电源的正极（+)， 同时将电泳槽阳极连接电 源的正极 （+)。 3. Connect the auxiliary anode to the positive terminal (+) of the power supply and connect the anode of the electrophoresis tank to the positive terminal (+) of the power supply.
4、将电泳工件放入电泳涂料溶液中。 电泳涂料可以选用聚丁二 烯树脂、 酚醛树脂、 环氧树脂、 丙烯酸树脂或聚胺脂。 4. Place the electrophoresis workpiece into the electrophoretic coating solution. The electrophoretic coating may be a polybutadiene resin, a phenol resin, an epoxy resin, an acrylic resin or a polyurethane.
5、 开通电源。 有多种方法： （ 1 ) 可采用分段电泳， 将阳极与 辅助阳极用切换开关相连接控制。 A.先电泳工件内部，将切换开关连 接到辅助阳极，然后电泳工件内部。之后，将将电源开关切换到阳极， 再电泳工件外部。 B.先电泳工件外部，将切换开关连接到阳极,然后电 泳工件外部。之后，将电源开关切换到辅助阳极，再电泳工件内部.（2) 也可采用同时电泳， 开通电源， 同时电泳工件内部和外部。 （3)也可 以同时用两台电泳电源分别连接辅助阳极及工件，另一台连接阳极及 工件， 两台同时开动电泳工件内部和工件外部。 5. Turn on the power. There are several methods: (1) Partial electrophoresis can be used to connect the anode and the auxiliary anode with a diverter switch. A. First electrophoresis the inside of the workpiece, connect the diverter switch to the auxiliary anode, and then electrophorese the inside of the workpiece. After that, the power switch will be switched to the anode and the outside of the workpiece will be electrophoresed. B. Electrophoresis of the outside of the workpiece, connecting the diverter switch to the anode, and then electrophoreting the outside of the workpiece. After that, switch the power switch to the auxiliary anode and electrophorese the inside of the workpiece. (2) Simultaneous electrophoresis can also be used to turn on the power and simultaneously electrophorese the inside and outside of the workpiece. (3) It is also possible to use two electrophoresis power sources to connect the auxiliary anode and the workpiece, and the other to connect the anode and the workpiece, and both of them simultaneously start the inside of the electrophoretic workpiece and the outside of the workpiece.
电泳漆膜的厚度可通过控制电压及时间及其他条件保证。 The thickness of the electrophoretic paint film can be guaranteed by controlling the voltage and time and other conditions.
实施例 2 Example 2
如图 2所示， 本发明的具体步骤如下- 1、 将工件连接电源的正极 （+)。 As shown in Fig. 2, the specific steps of the present invention are as follows - 1. Connect the workpiece to the positive electrode (+) of the power supply.
2、 将辅助阴极放入工件内部。 2. Place the auxiliary cathode inside the workpiece.
3、将辅助阴极连接电源的负极（ -)， 同时将电泳槽阴极连接电 源的负极 （ -）。 3. Connect the auxiliary cathode to the negative terminal (-) of the power supply, and connect the cathode of the electrophoresis tank to the negative terminal (-) of the power supply.
4、将电泳工件放入电泳涂料溶液中。 电泳涂料可以选用聚丁二 烯树脂、 酚醛树脂、 环氧树脂、 丙烯酸树脂或聚胺脂。
5、 开通电源。 有多种方法： （1 )可采用分段电泳， 将阴极与辅 助阴极用切换开关相连接控制. A.先电泳工件内部， 将切换开关连接 到辅助阴极， 然后电泳工件内部。 之后， 将将电源开关切换到阴极， 再电泳工件外部。 B.先电泳工件外部，将切换开关连接到阳极，然后电 泳工件外部。之后，将电源开关切换到辅助阳极，再电泳工件内部。（2) 也可采用同时电泳， 开通电源， 同时电泳工件内部和外部。 （3)也可 以同时用两台电泳电源分别连接辅助阴极及工件，另一台连接阴极及 工件， 两台同时开动电泳工件内部和工件外部。 4. Place the electrophoresis workpiece into the electrophoretic coating solution. The electrophoretic coating may be a polybutadiene resin, a phenol resin, an epoxy resin, an acrylic resin or a polyurethane. 5. Turn on the power. There are several methods: (1) Partial electrophoresis can be used to connect the cathode to the auxiliary cathode with a diverter switch. A. First electrophoresis the inside of the workpiece, connect the diverter switch to the auxiliary cathode, and then electrophorese the inside of the workpiece. After that, the power switch will be switched to the cathode and the outside of the workpiece will be electrophoresed. B. Electrophoresis the outside of the workpiece, connect the diverter switch to the anode, and then electrophorese the outside of the workpiece. After that, switch the power switch to the auxiliary anode and electrophorese the inside of the workpiece. (2) Simultaneous electrophoresis can also be used to turn on the power and simultaneously electrophorese the inside and outside of the workpiece. (3) It is also possible to use two electrophoresis power sources to connect the auxiliary cathode and the workpiece at the same time, and the other to connect the cathode and the workpiece, and both of them simultaneously start the inside of the electrophoretic workpiece and the outside of the workpiece.
电泳漆膜的厚度可通过控制电压及时间及其他条件保证。 The thickness of the electrophoretic paint film can be guaranteed by controlling the voltage and time and other conditions.
实施例 3在阴极电泳工艺时： Example 3 During the cathodic electrophoresis process:
如图 3所示， 工件 （A) 为被电泳件， 接电泳源的负极（ -）， 阳 极 C接电源正极（ + )， 同时， 在深孔、深凹件件内部放入一个辅助阳 极（B)。辅助阳极材料为金属或非金属经金属化的导体， 可以通过电 流。辅助阳极与深孔、深凹件内管壁距离可远可近，但不能与工件（A) 直接接触。需要用不导电的非导体物件如塑料， 橡胶， 木头及其它非 导电体支撑或者说阻隔辅助阳极同工件相碰及接触，同时此非导电体 又是带有规则的或者不规则的孔，有利于电泳涂料进入工件内部。电 源阳极导线与辅助阳极的联接方式可以单端相联接，也可以两端相联 接。 具体步骤与实施例 1相同。 As shown in Fig. 3, the workpiece (A) is an electrophoresis member, which is connected to the negative electrode (-) of the electrophoresis source, and the anode C is connected to the positive electrode (+) of the power source. At the same time, an auxiliary anode is placed inside the deep hole and the deep concave member ( B). The auxiliary anode material is a metal or non-metal metallized conductor that can pass current. The auxiliary anode can be far from the inner wall of the deep hole and deep recess, but it cannot be in direct contact with the workpiece (A). Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary anode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece. The connection between the power source anode wire and the auxiliary anode can be connected at one end or at both ends. The specific steps are the same as in the first embodiment.
实施例 4在阳极电泳工艺时： Example 4 During the anodic electrophoresis process:
如图 4所示， 工件 （A) 为被电泳件， 接电泳源的正极 （+)， 阴 极 C接电源负极（ -)， 同时， 在深孔、深凹件内部放入一个辅助阴极
(B)。辅助阴极材料为金属或非金属经金属化的导体，可以通过电流。 辅助阴极与深孔、 深凹件内管壁距离可远可近， 但不能与工件 （A) 直接接触。需要用不导电的非导体物件如塑料， 橡胶， 木头及其它非 导电体支撑或者说阻隔辅助阴极同工件相碰及接触，同时此非导电体 又是带有规则的或者不规则的孔，有利于电泳涂料进入工件内部。电 源阴极导线与辅助阴极的联接方式可以单端相联接，也可以两端相联 接。 具体步骤与实施例 2相同。
As shown in Fig. 4, the workpiece (A) is an electrophoresis member, which is connected to the positive electrode (+) of the electrophoresis source, and the cathode C is connected to the negative electrode (-) of the power source. At the same time, an auxiliary cathode is placed inside the deep hole and the deep concave member. (B). The auxiliary cathode material is a metal or non-metal metallized conductor that can pass current. The auxiliary cathode can be far from the inner wall of the deep hole and deep recess, but it cannot be in direct contact with the workpiece (A). Non-conducting non-conducting objects such as plastic, rubber, wood and other non-conducting materials are required to support or block the auxiliary cathode from colliding with and contacting the workpiece, and the non-conducting body has regular or irregular holes. Conducive to the electrophoretic coating into the interior of the workpiece. The connection mode of the power cathode wire and the auxiliary cathode may be connected at one end or may be connected at both ends. The specific steps are the same as in the second embodiment.
Claims
1、 一种管件式金属及深孔深凹件金属的电泳涂装技术方法，它 是在阴极电泳工艺时， 在金属件的深孔内部放入一个辅助阳极。 1. A method for electrophoretic coating of a tube-shaped metal and a deep-hole deep-groove metal, which is an auxiliary anode placed inside a deep hole of a metal member during a cathodic electrophoresis process.
2 、根椐权利要求 1所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所述的金属件为圆管、方管、含有内孔形状的管 件或深孔深凹件， 以及经过特殊处理的非金属导电件。 2. The method of electrophoretic coating of a tubular metal and a deep hole deep recessed metal according to claim 1, wherein the metal member is a circular tube, a square tube, a tube member having an inner hole shape or a deep hole depth. Concave parts, as well as specially treated non-metallic conductive parts.
3、 根椐权利要求 1所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所使用的电泳涂料为聚丁二烯树脂、 酚酸树脂、 环氧树脂、 丙烯酸树脂或聚胺脂。 3. The electrophoretic coating method for a tube-shaped metal and a deep-hole deep-groove metal according to claim 1, wherein the electrophoretic coating used is a polybutadiene resin, a phenolic resin, an epoxy resin, an acrylic resin. Or polyurethane.
4、根椐权利要求 3所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法，其中所使用的电泳涂料也包含了添加了填料或助剂的 电泳涂料。 4. The electrophoretic coating method for a tube-shaped metal and a deep-hole deep-groove metal according to claim 3, wherein the electrophoretic coating used also comprises an electrophoretic coating to which a filler or an auxiliary agent is added.
5、 根椐权利要求 4所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法，其中所述的电泳涂料包含无色透明，哑光无色，黑色， 灰色， 白色， 红、 黄、 绿、 蓝各类彩色， 以及闪光色， 珠光色和添加 染料和颜料的电泳涂料。 5. The electrophoretic coating method of the tubular metal and the deep hole deep recessed metal according to claim 4, wherein the electrophoretic coating comprises colorless transparent, matte colorless, black, gray, white, red. , yellow, green, blue, various colors, as well as flashing colors, pearlescent colors and electrophoretic coatings with dyes and pigments.
6、 根椐权利要求 4所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所述的电泳涂料包含热固性涂料或光敏性涂料。 6. The method of electrophoretic coating of a tubular metal and deep hole deep metal according to claim 4, wherein the electrophoretic coating comprises a thermosetting coating or a photosensitive coating.
7、 根椐权利要求 1所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所述的辅助阳极材料为可导电的导体件。 7. The method of electrophoretic coating of a tubular metal and deep hole deep recessed metal according to claim 1, wherein said auxiliary anode material is an electrically conductive conductor member.
8、 一种管件式金属及深孔深凹件金属的电泳涂装技术方法，它 是在阳极电泳工艺时， 在金属件的深孔内部放入一个辅助阴极。
8. A method for electrophoretic coating of a tube-shaped metal and a deep-hole deep-groove metal, which is an auxiliary cathode placed inside a deep hole of a metal member during an anodic electrophoresis process.
9 、根椐权利要求 8所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所述的金属件为圆管、方管、含有内孔形状的管 件或深孔深四件， 以及经过特殊处理的非金属导电件。 9. The method of electrophoretic coating of a tubular metal and a deep hole deep recessed metal according to claim 8, wherein the metal member is a round tube, a square tube, a tube member having an inner hole shape or a deep hole depth. Four pieces, as well as specially treated non-metallic conductive parts.
10、根椐权利要求 8所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所使用的电泳涂料为聚丁二烯树脂、 酚醛树脂、 环氧树脂、 丙烯酸树脂或聚胺脂。 10. The electrophoretic coating method for a tube-shaped metal and a deep-hole deep-groove metal according to claim 8, wherein the electrophoretic coating used is a polybutadiene resin, a phenol resin, an epoxy resin, an acrylic resin or Polyurethane.
11、 根椐权利要求 10所述的管件式金属及深孔深凹件金属的电 泳涂装技术方法，其中所使用的电泳涂料也包含了添加了填料或助剂 的电泳涂料。 11. An electrophoretic coating technique for a tubular metal and deep hole deep recessed metal according to claim 10, wherein the electrophoretic coating used also comprises an electrophoretic coating to which a filler or an auxiliary agent is added.
12、根椐权利要求 8所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法，其中所述的电泳涂料包含无色透明，哑光无色，黑色， 灰色， 白色， 红、 黄、 绿、 蓝各类彩色， 以及闪光色， 珠光色和添加 染料和颜料的电泳涂料。 12. The method of electrophoretic coating of a tubular metal and deep hole deep metal according to claim 8, wherein said electrophoretic coating comprises colorless transparent, matte colorless, black, gray, white, red. , yellow, green, blue, various colors, as well as flashing colors, pearlescent colors and electrophoretic coatings with dyes and pigments.
13、 根椐权利要求 10所述的管件式金属及深孔深凹件金属的电 泳涂装技术方法，其中所述的电泳涂料包含热固性涂料、光敏性涂料。 13. The method of electrophoretic coating of a tubular metal and deep hole deep recessed metal according to claim 10, wherein said electrophoretic coating comprises a thermosetting coating and a photosensitive coating.
14、根椐权利要求 8所述的管件式金属及深孔深凹件金属的电泳 涂装技术方法， 其中所述的辅助阳极材料为可导电的导体件。
14. The method of electrophoretic coating of a tubular metal and deep hole deep recessed metal according to claim 8, wherein said auxiliary anode material is an electrically conductive conductor member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101254759A CN101003908A (en) | 2006-12-15 | 2006-12-15 | Electrophoresis painting dressing technical method for pipe fitting type metal, and metal piece with deep hole, and deep concave |
| CN200610125475.9 | 2006-12-15 |
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| Publication Number | Publication Date |
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| WO2008071051A1 true WO2008071051A1 (en) | 2008-06-19 |
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| PCT/CN2007/001598 WO2008071051A1 (en) | 2006-12-15 | 2007-05-16 | Electrophresis painting method for tubular and deep-hole or deep-concave metal workpiece |
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| CN (1) | CN101003908A (en) |
| WO (1) | WO2008071051A1 (en) |
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| CN101122358A (en) * | 2007-05-25 | 2008-02-13 | 武汉立胜超滤科技发展有限公司 | Steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus |
| CN102330136B (en) * | 2011-09-06 | 2013-12-25 | 上海瑞尔实业有限公司 | Auxiliary cathode and method for carrying out anodic oxidation on blind hole by using same |
| CN105297114A (en) * | 2015-11-27 | 2016-02-03 | 黄石市华天自动化设备有限公司 | Automobile shell built-in anode electrophoresis apparatus |
| CN106811790B (en) * | 2015-11-30 | 2019-07-05 | 中国石油天然气集团公司 | A kind of coating method of heat exchanger tube inner anticorrosioning coating |
| CN109837580A (en) * | 2017-11-29 | 2019-06-04 | 辽宁法库陶瓷工程技术研究中心 | A kind of coating method of cold screen high IR absorptivity coating |
| CN108707952B (en) * | 2018-06-12 | 2020-07-21 | 金华市秸和环保技术咨询有限公司 | Toughened glass surface electrophoresis spraying process |
| CN112210810A (en) * | 2020-10-09 | 2021-01-12 | 美图（福建）铝业有限公司 | Processing technology of high-corrosion-resistance extinction electrophoresis aluminum profile |
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| JPS61163297A (en) * | 1985-01-11 | 1986-07-23 | Toyota Motor Corp | Electrodeposition coating method and its coating device |
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| JPS61163297A (en) * | 1985-01-11 | 1986-07-23 | Toyota Motor Corp | Electrodeposition coating method and its coating device |
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| WANG X.: "Answer to Electrophoresis Painting (1)", MATERIALS PROTECTION, vol. 28, no. 4, April 1995 (1995-04-01), pages 39 * |
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