WO2014168314A1 - Electroplating apparatus for preventing excessive plating of edge - Google Patents
Electroplating apparatus for preventing excessive plating of edge Download PDFInfo
- Publication number
- WO2014168314A1 WO2014168314A1 PCT/KR2013/011554 KR2013011554W WO2014168314A1 WO 2014168314 A1 WO2014168314 A1 WO 2014168314A1 KR 2013011554 W KR2013011554 W KR 2013011554W WO 2014168314 A1 WO2014168314 A1 WO 2014168314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- edge
- anode
- mask
- steel sheet
- plating
- Prior art date
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Classifications
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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
- C25D3/00—Electroplating: Baths therefor
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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
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/008—Current shielding devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/10—Electrodes, e.g. composition, counter electrode
Definitions
- the present invention relates to an electroplating apparatus, and more particularly to an electroplating apparatus for preventing overplating of the edge portion of the steel sheet.
- steel sheets used for automobile steel sheets or exterior materials of electrical appliances undergo an annealing process, and then undergo an electro zinc plating process to have corrosion resistance required for the purpose of use.
- edge overplating there is a problem of edge overplating, in which the plating amount of the edge portion is increased compared to other portions. Since the edge overplating causes bending on the steel sheet due to excessive plating adhesion of the edge portion during the coiling and winding, the coil has to be manufactured in small units, which causes many problems in transportation cost and productivity.
- the edge mask of FIG. 1 has been conventionally applied. As shown in FIG. 1, an upper anode 2 and a lower anode 3 are positioned at a predetermined distance from the steel sheet 1 serving as a cathode, and the steel sheet 1 is located. An edge mask 4 for blocking current concentration at both ends, i.e., the edge portion, has been applied.
- the decrease in the current density of the edge portion of the steel sheet is directly related to the productivity of the line.
- the concentration phenomenon of the edge portion current density increases.
- Increasing the current density of the edge portion is limited to the post-plating line work speed, there is a problem that the productivity sharply drops.
- the present invention has been made to solve this problem, and an object of the present invention is to prevent the over plating of the edge portion of the steel sheet by adding the anode edge mask to the existing cathode edge mask to reduce the current density of the edge portion of the steel sheet.
- the present invention provides an electroplating apparatus.
- the An anode edge mask disposed close to the edge portion and spaced apart from each other at upper and lower portions of the cathode edge mask and the anode edge mask to cut off electricity between the edge portion and the anode, respectively, and an anode edge to cut off electricity between the edge portion and the anode. It characterized in that it comprises a mask.
- the anode edge mask may increase or decrease an area that blocks current flow between the edge portion and the anode.
- the cathode edge mask may be provided with a groove to allow the steel sheet to pass through the surface where the steel sheet contacts.
- the groove may be formed to be inclined widely in the steel plate direction.
- the cathode edge mask and the anode edge mask may be formed of nonconductors, respectively.
- the anode edge mask may be formed of a conductive material and an insulator layer may be formed on a surface facing the anode.
- the electroplating apparatus for preventing edge over plating even when the cathode edge mask does not approach the edge of the steel sheet due to meandering of the steel sheet, the current density concentrated on the edge portion of the steel sheet by the anode edge mask is measured. It is possible to reduce the over-plating phenomenon by the current concentration of the edge portion during the electroplating, and the defect and operation problems due to the dendrite-type precipitation can be solved. In addition, even in the post-plating operation of the zinc single-side plating amount of 55g / m 2 or more, productivity can be greatly improved by increasing the operating speed of the line to 70 ⁇ 100mpm or more.
- FIG. 1 is a schematic cross-sectional view showing an anode and an edge mask of a conventional continuous electroplating horizontal cell.
- FIG. 2 is a side view of an edge mask according to an embodiment of the present invention.
- FIG. 3 is a perspective view of an edge mask according to an embodiment of the present invention.
- Figure 4 is a schematic cross-sectional view of the electroplating apparatus for preventing edge over plating according to an embodiment of the present invention.
- the cathode edge mask is close to the edge portion of the steel sheet to reduce the current density applied to the edge portion of the steel sheet to prevent the overplating phenomenon of the edge portion, in the present invention by adding the anode edge mask to the cathode edge mask in the edge of the steel sheet
- innovative improvements in overplating at the edges have been achieved by reducing the current density applied to the side.
- the anode edge mask may increase or decrease an area covering the anode, that is, an area blocking the energization of the edge portion of the steel sheet and the anode, thereby controlling the current density of the edge portion of the steel sheet.
- the cathode edge mask 11 according to the exemplary embodiment of the present invention is installed to be close to the edge portion of the steel sheet to block the energization of the edge portion of the steel sheet and the anode.
- the cathode edge mask 11 has a groove formed therein in the direction of the steel sheet, and thus, when continuous plating is applied to the steel sheet, it is possible to block the energization between the anode and the edge portion of the steel sheet by passing the edge portion through the inside of the groove.
- the groove is preferably formed to be inclined widely in the steel plate direction.
- the meandering phenomenon occurs to move from side to side in the width direction of the steel sheet, it is possible to stably reduce the current density of the edge portion of the steel sheet without collision even if the distance between the steel sheet and the negative electrode edge mask 11 is changed.
- a support 13 is connected to the other side of the cathode edge mask 11, and one end of the support 13 is connected to a mask driver 16 for moving the cathode edge mask 11 forward and backward to continuously connect the steel sheet.
- the position of the cathode edge mask 11 can be adjusted by moving the cathode edge mask 11 forward and backward toward the steel sheet.
- the mask driver 16 may be a cylinder device as a device capable of moving forward and backward, and may be driven by a servo motor for precise control.
- the supporting portion 13 is coupled to the connecting portion 14 which is formed extending in the vertical direction to couple the anode edge mask.
- the connection part 14 may be formed to penetrate the support part 13 and may be formed in two rod shapes on both sides.
- connection part 14 may be inserted into the positioning hole 15 formed in the anode edge mask 12 so that the anode edge mask 12 and the connection part 14 may be coupled to each other.
- the anode edge mask 12 may be coupled in a form in which two anode edge masks 11 face each other in parallel, and two or more positioning holes 15 may be formed in a steel plate direction so that the connection portion ( The current density of the edge portion of the steel sheet can be adjusted by adjusting the area covering the anode according to the position of the positioning hole 15 coupled with 14).
- the cathode edge mask 11 and the anode edge mask 12 may be formed of nonconductors.
- the anode edge mask 12 may be formed of a conductive material in order to prevent the portion covered by the anode edge mask 12 from being unplated.
- the anode edges 2 and 3 may be electrically energized.
- the mask 12 may have an insulator layer formed on a surface facing the anodes 2 and 3. In this case, the unplating problem can be prevented from occurring on the surface covered by the anode edge mask 12.
- Figure 4 is a schematic cross-sectional view of the electroplating apparatus for preventing edge over plating according to an embodiment of the present invention.
- the steel sheet 1 is negatively charged to serve as a negative electrode, and the electroplating proceeds as it progresses between two positive electrodes 2 and 3. At this time, both side edge portions of the steel sheet 1 may be excessively plated while the current density is concentrated.
- the cathode edge mask 11 is disposed in close proximity, the current density of the edge portion is reduced. At this time, even if the gap between the cathode edge mask 11 and the edge portion of the steel sheet increases, the anode is covered by the anode edge mask 12 formed between the cathode edge mask 11 and the anodes 2 and 3 so that the current of the edge portion is caused. It is possible to reduce the density.
Abstract
Description
Claims (7)
- 강판을 중심으로 일정거리 이격되어 형성된 양극 사이에서 도금하는 강판의 전기도금장치에 있어서,In the electroplating apparatus of the steel sheet to be plated between the positive electrode formed to be spaced apart a certain distance around the steel sheet,상기 강판의 에지부와 근접하게 설치되어 상기 에지부와 상기 양극과의 통전을 차단하는 음극 에지 마스크 및A cathode edge mask installed close to the edge portion of the steel sheet to block electric current between the edge portion and the anode;상기 음극 에지 마스크의 상하부에 각각 이격되게 설치되어, 상기 에지부와 상기 양극과의 통전을 차단하는 양극 에지 마스크를 포함하는 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.Electroplating apparatus for preventing the edge portion over-plating, characterized in that provided in the upper and lower portions of the cathode edge mask spaced apart from each other, the anode edge mask for blocking the energization of the edge portion and the anode.
- 청구항 1에 있어서,The method according to claim 1,상기 양극 에지 마스크는 그 결합위치에 따라 상기 에지부와 상기 양극과의 통전을 차단하는 면적을 증감시킬 수 있는 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.The anode edge mask is electroplating apparatus for preventing the edge portion over-plating, it characterized in that it can increase or decrease the area to block the electricity between the edge portion and the anode in accordance with the bonding position.
- 청구항 2에 있어서,The method according to claim 2,상기 음극 에지 마스크의 일측면에 연결되는 지지부;A support connected to one side of the cathode edge mask;상기 지지부의 상하방향으로 연장 형성되어 상기 지지부와 상기 양극 에지 마스크에 결합하는 연결부;A connection part extending in the vertical direction of the support part and coupled to the support part and the anode edge mask;상기 지지부의 일단에 결합되어 음극 에지 마스크를 전, 후진시키는 마스크 구동부; 및A mask driver coupled to one end of the support to move the cathode edge mask forward and backward; And상기 양극 에지 마스크에 상기 강판 방향으로 2개 이상 형성되며, 상기 연결부와 결합되는 위치조절홀을 더 포함하는 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.Electroplating apparatus for preventing the edge portion over-plating characterized in that the anode edge mask is formed in two or more in the direction of the steel sheet, and further comprising a positioning hole coupled to the connecting portion.
- 청구항 1에 있어서,The method according to claim 1,상기 음극 에지 마스크는 강판이 접하는 면이 내부로 강판이 통과할 수 있도록 홈이 형성된 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.The negative electrode edge mask is electroplating apparatus for preventing the edge portion over-plating, characterized in that the groove is formed so that the steel plate passes through the inner surface of the contact with the steel sheet.
- 청구항 4에 있어서,The method according to claim 4,상기 홈은 강판 방향으로 넓게 경사지게 형성된 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치The groove is an electroplating apparatus for preventing edge over-plating, characterized in that the groove is formed to be inclined widely in the direction of the steel sheet
- 청구항 1 내지 청구항 5 중 어느 한 항에 있어서,The method according to any one of claims 1 to 5,상기 음극 에지 마스크 및 양극 에지 마스크는 각각 부도체로 형성된 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.And the cathode edge mask and the anode edge mask are each formed of a non-conductor.
- 청구항 1 내지 청구항 5 중 어느 한 항에 있어서,The method according to any one of claims 1 to 5,상기 양극 에지 마스크는 전도성 소재로 형성되며 양극과 마주하는 면에 부도체층이 형성된 것을 특징으로 하는 에지부 과도금 방지를 위한 전기도금장치.The anode edge mask is formed of a conductive material and the electroplating apparatus for preventing edge over-plating, characterized in that the insulator layer is formed on the surface facing the anode.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015562897A JP6089125B2 (en) | 2013-04-10 | 2013-12-12 | Electroplating equipment to prevent edge overplating |
US14/783,836 US20160076166A1 (en) | 2013-04-10 | 2013-12-12 | Eletroplating apparatus for preventing excessive plating of edge |
EP13881849.7A EP2985367A4 (en) | 2013-04-10 | 2013-12-12 | Electroplating apparatus for preventing excessive plating of edge |
CN201380074786.5A CN105189830B (en) | 2013-04-10 | 2013-12-12 | For preventing the electroplanting device of the super plating in edge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0038912 | 2013-04-10 | ||
KR20130038912A KR101495419B1 (en) | 2013-04-10 | 2013-04-10 | Electro-plating apparatus utilizing edge mask to prevent the edge overcoating |
Publications (1)
Publication Number | Publication Date |
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WO2014168314A1 true WO2014168314A1 (en) | 2014-10-16 |
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ID=51689696
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2013/011554 WO2014168314A1 (en) | 2013-04-10 | 2013-12-12 | Electroplating apparatus for preventing excessive plating of edge |
Country Status (6)
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US (1) | US20160076166A1 (en) |
EP (1) | EP2985367A4 (en) |
JP (1) | JP6089125B2 (en) |
KR (1) | KR101495419B1 (en) |
CN (1) | CN105189830B (en) |
WO (1) | WO2014168314A1 (en) |
Families Citing this family (6)
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KR101633617B1 (en) * | 2014-12-12 | 2016-06-28 | 주식회사 포스코 | Electric plating apparatus with horizontal cell and edge mask for using the same |
KR101666461B1 (en) | 2014-12-24 | 2016-10-14 | 주식회사 포스코 | Electro-plating apparatus for preventing edge area of plate from being overcoated |
KR101674793B1 (en) * | 2015-03-02 | 2016-11-10 | 주식회사 포스코 | Centering apparatus using fluid flow and Electroplating plant having the same |
KR102065220B1 (en) | 2017-12-22 | 2020-01-10 | 주식회사 포스코 | Electroplating apparatus with edge mask |
CN109234776B (en) * | 2018-09-17 | 2020-04-10 | 芜湖海成科技有限公司 | Portable conductive tool |
KR102022920B1 (en) * | 2019-06-25 | 2019-09-19 | 주식회사 태성 | Roll-to-roll Horizontal Continuous Plating Equipment |
Citations (5)
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JPH08239796A (en) * | 1995-03-01 | 1996-09-17 | Nippon Steel Corp | Edge mask for electroplating and electroplating method |
KR20010059601A (en) * | 1999-12-30 | 2001-07-06 | 이구택 | a method for electro-plating with good coating layer |
JP2002235191A (en) * | 2001-02-07 | 2002-08-23 | Nkk Corp | Electroplating apparatus for steel strip and method for producing electroplated steel strip |
JP2004315922A (en) * | 2003-04-18 | 2004-11-11 | Nippon Steel Corp | Edge mask device of continuous electroplating equipment |
JP2009173952A (en) * | 2008-01-21 | 2009-08-06 | Nippon Mining & Metals Co Ltd | Edge over coat preventing device and method of manufacturing electroplated material using the same |
Family Cites Families (5)
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FR2750438B1 (en) * | 1996-06-27 | 1998-08-07 | Usinor Sacilor | METHOD AND INSTALLATION FOR ELECTROLYTIC COATING WITH A METAL LAYER OF THE SURFACE OF A CYLINDER FOR CONTINUOUS CASTING OF THIN METAL STRIPS |
DE19717510C1 (en) * | 1997-04-25 | 1998-10-01 | Atotech Deutschland Gmbh | Device for dimming electroplated goods in continuous systems |
JP4177902B2 (en) * | 1998-04-23 | 2008-11-05 | アトーテヒ ドイッチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Apparatus for electrolytically treating a plate-shaped workpiece and method for electrically shielding the edge range of the workpiece during electrolytic treatment |
US20060037865A1 (en) * | 2004-08-19 | 2006-02-23 | Rucker Michael H | Methods and apparatus for fabricating gas turbine engines |
CN202509143U (en) * | 2012-02-01 | 2012-10-31 | 湖南中精伦金属材料有限公司 | Electronickelling edge shield device |
-
2013
- 2013-04-10 KR KR20130038912A patent/KR101495419B1/en active IP Right Grant
- 2013-12-12 JP JP2015562897A patent/JP6089125B2/en active Active
- 2013-12-12 EP EP13881849.7A patent/EP2985367A4/en not_active Withdrawn
- 2013-12-12 US US14/783,836 patent/US20160076166A1/en not_active Abandoned
- 2013-12-12 WO PCT/KR2013/011554 patent/WO2014168314A1/en active Application Filing
- 2013-12-12 CN CN201380074786.5A patent/CN105189830B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08239796A (en) * | 1995-03-01 | 1996-09-17 | Nippon Steel Corp | Edge mask for electroplating and electroplating method |
KR20010059601A (en) * | 1999-12-30 | 2001-07-06 | 이구택 | a method for electro-plating with good coating layer |
JP2002235191A (en) * | 2001-02-07 | 2002-08-23 | Nkk Corp | Electroplating apparatus for steel strip and method for producing electroplated steel strip |
JP2004315922A (en) * | 2003-04-18 | 2004-11-11 | Nippon Steel Corp | Edge mask device of continuous electroplating equipment |
JP2009173952A (en) * | 2008-01-21 | 2009-08-06 | Nippon Mining & Metals Co Ltd | Edge over coat preventing device and method of manufacturing electroplated material using the same |
Also Published As
Publication number | Publication date |
---|---|
KR20140122768A (en) | 2014-10-21 |
CN105189830B (en) | 2018-03-06 |
US20160076166A1 (en) | 2016-03-17 |
EP2985367A1 (en) | 2016-02-17 |
JP6089125B2 (en) | 2017-03-01 |
JP2016513752A (en) | 2016-05-16 |
CN105189830A (en) | 2015-12-23 |
EP2985367A4 (en) | 2016-12-28 |
KR101495419B1 (en) | 2015-02-24 |
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