KR100553605B1 - Roll coating for the roll of high voltage current in electroplating process - Google Patents
Roll coating for the roll of high voltage current in electroplating process Download PDFInfo
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- KR100553605B1 KR100553605B1 KR1020030097109A KR20030097109A KR100553605B1 KR 100553605 B1 KR100553605 B1 KR 100553605B1 KR 1020030097109 A KR1020030097109 A KR 1020030097109A KR 20030097109 A KR20030097109 A KR 20030097109A KR 100553605 B1 KR100553605 B1 KR 100553605B1
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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
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
- C25D7/0657—Conducting rolls
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
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- Electroplating Methods And Accessories (AREA)
Abstract
본 발명은 전기도금 라인에 있어 고압고전류 통전롤의 아크 발생 방지를 위한 코팅 구조에 관한 것으로, 롤 모재(11)에 대한 1층 코팅으로 구리 코팅(12), 2층 코팅으로 WC-CoCr, 또는 Cu-W, 또는 Cu-SC 코팅(13)을, 그리고 3층 코팅으로 구리 코팅(14)을 형성하는 것을 특징으로 하는 전기도금 라인의 고압고전류 통전롤 코팅 구조를 제공하는 바, 이러한 본 발명의 롤 코팅구조에 의해 초기 3층 코팅(14)이 마모된 후에 2층 코팅(13)의 내마모성과 3층 코팅(14)의 나노구조 분산으로 아크 발생을 효과적으로 방지할 수 있는 효과를 제공한다.The present invention relates to a coating structure for preventing arc generation of a high-pressure, high-current current-carrying roll in an electroplating line, copper coating (12) as a single layer coating on the roll base material 11, WC-CoCr as a two-layer coating, or To provide a high-pressure, high-current current-carrying roll coating structure of an electroplating line, characterized in that the copper coating 14 is formed by the Cu-W or Cu-SC coating 13 and the three-layer coating. After the initial three-layer coating 14 is worn by the roll coating structure, the wear resistance of the two-layer coating 13 and the nanostructure dispersion of the three-layer coating 14 provide an effect of effectively preventing arc generation.
Description
도1은 본 발명이 관련된 전기도금 라인의 개요도,1 is a schematic diagram of an electroplating line according to the present invention;
도2는 본 발명에 따른 통전롤 코팅의 단면구조도,Figure 2 is a cross-sectional structure diagram of the current-carrying roll coating according to the present invention,
도3은 초기 마모 후 통전롤 코팅의 상부부분 단면구조도.Figure 3 is a cross-sectional structural view of the upper portion of the energizing roll coating after the initial wear.
* 도면의 주요부분에 대한 설명* Description of the main parts of the drawings
1 : 입측 통전롤 2 : 출측 통전롤 3 : 도금욕조DESCRIPTION OF SYMBOLS 1
4 : 인덕션로 5 : 고온 롤 6 : 가열로4: induction furnace 5: high temperature roll 6: heating furnace
7 : 고주파 인덕션 코일 8 : 전기도금 강판 9 : 접지7: high frequency induction coil 8: electroplating steel sheet 9: grounding
10 : 저온 롤 11 : 롤 모재 12 : 구리 코팅10
13 : WC-CoCr, 또는 Cu-W, 또는 Cu-WC 코팅 14 : 구리 코팅13: WC-CoCr, or Cu-W, or Cu-WC coating 14: copper coating
본 발명은 전기도금 라인에 있어서 고압고전류 통전롤의 아크(Arc) 발생 방지를 위한 코팅 구조에 관한 것으로, 더욱 상세히는 전기도금 라인에 있어 아크가 발생되는 고전압 고전류 통전롤에 조직을 나노구조로 제어한 코팅을 제공함으로써 내마모성과 아크 발생 방지를 동시에 이룰 수 있도록 한, 전기도금 라인의 고압고전류 통전롤 다중 코팅 구조에 관한 것이다.The present invention relates to a coating structure for preventing arc generation of a high pressure high current conducting roll in an electroplating line, and more particularly, to control the structure of the structure in a high voltage high current conducting roll in which an arc occurs in an electroplating line. The present invention relates to a high pressure, high current, energizing roll multi-coating structure of an electroplating line that provides a coating to achieve both abrasion resistance and arcing prevention.
전기도금 라인에 있어서 고압고전류 통전롤 혹은 리플로(Reflow) 롤은 강판에 전착된 주석도금을 철과 주석사이에 FeSn2 형태로 합금을 만들어 화려한 광택을 주기 위해서 가열하여 녹이게 하는 작용을 하는 롤이다. 이러한 FeSn2 합금층은 강판의 내식성을 증가시킨다. 상기 고압고전류 통전롤에 의한 리플로 처리는 주석을 녹이기 위해 고주파 유도가열 혹은 저항가열의 가열방식과 수직로로 구성되어 있는 처리를 말한다. 저항가열방식은 두개의 통전롤을 통해서 AC 10~350 V 정도의 전류로써 강판을 가열하는 것이며, 고주파 유도가열 방식은 100~200 KHz 고주파 전압이 걸린 수냉 구리 코일을 통해서 강판이 통과하강하고 이 통과되는 강판에 유도된 와류전류가 주석 코팅의 최고용융점까지 가열하는 것이다.In the electroplating line, high-pressure high-current energizing rolls or reflow rolls are used to heat and dissolve the tin plating electrodeposited on the steel sheet in the form of FeSn 2 alloy between iron and tin for heating to give brilliant luster. to be. This FeSn 2 alloy layer increases the corrosion resistance of the steel sheet. The reflow treatment by the high-pressure high current energizing roll refers to a treatment composed of a high frequency induction heating or a resistance heating in a vertical manner to melt tin. The resistance heating method is to heat the steel plate with a current of
이러한 것 중에 본 발명이 관련된 저항가열방식의 장치는 통전롤에 약 227V 이상의 전압과 11000 A 정도의 전기를 통전시켜 강판을 가열하는 장치로 구성된다. 특히 이러한 장치에서는 출측의 통전롤을 강판이 지날때 롤에 걸리는 전압과 전류로 인해서 아크가 롤과 강판사이에 발생하고 있는 바, 이 같은 아크의 발생은 강판과 롤사이에 전기전도도, 접촉저항에 의해서 영향을 받아 일어나는 것으로 파악되고 있다. 특히 접촉저항은 다시 집중저항과 피막저항으로 나누게 되는데, 집중저항은 표면에 서로 접촉을 할 때 접촉의 돌기부분에 의해 일어나게 된다.Among them, the resistance heating apparatus according to the present invention comprises a device for heating a steel sheet by applying a voltage of about 227V or more and electricity of about 11000 A to a current carrying roll. Particularly, in such a device, an arc is generated between the roll and the steel sheet due to the voltage and current applied to the roll when the steel sheet passes through the exit side. Such arc generation is caused by the electrical conductivity and contact resistance between the steel sheet and the roll. It is understood that it happens by being affected. In particular, the contact resistance is divided into a concentrated resistance and a film resistance, which is caused by the protrusions of the contact when the surface contacts each other.
기존의 상기와 같은 전기도금 라인에 쓰이는 통전롤에는 크롬 도금이 되어 있는 것이 보통이다. 이러한 크롬 도금은 내마모성이 있으나, 표면에 미세 크랙이 약 3~4 ㎛ 간격으로 있음으로 인하여, 표면이 불균일한 상태를 이룬다. 이러한 문제를 해결하기 위해 WC계 코팅을 실시하거나 WC의 사이즈가 약 2~10 ㎛ 정도인 것을 Co와 소결시킨 것을 사용해 보았으나 여전히 아크가 계속 발생하였다.The current rolls used in the conventional electroplating lines are usually chromium plated. Such chromium plating is abrasion resistance, but due to the fine cracks on the surface of about 3 ~ 4 ㎛ intervals, the surface is non-uniform. In order to solve this problem, I tried using WC-based coating or sintering with Co having a WC size of about 2 to 10 μm, but arcing still occurred.
본 발명은 이러한 종래의 문제를 해결하기 위한 것으로, 전기도금 라인의 고압고전류 통전롤에 대한 내마모성이 우수한 WC-Co 코팅, 또는 Cu-W코팅, 또는 Cu-WC 코팅에 있어, 롤 모재에 구리 코팅을 한 후 그 위에 상기 코팅을 하고, 다시 그 위에 구리 코팅을 형성한 것을 특징으로 하는 전기도금 라인의 고압고전류 통전롤 코팅 구조를 제공하는 것을 그 목적으로 하는 것이다.The present invention is to solve such a conventional problem, in the WC-Co coating, or Cu-W coating, or Cu-WC coating excellent in wear resistance to the high-pressure high-current energizing roll of the electroplating line, copper coating on the roll base material After the coating and the coating on it, and to provide a high-pressure high-current current-carrying roll coating structure of the electroplating line, characterized in that the copper coating formed on it again.
WC-CoCr의 분말과 Cu-WC의 분말은 WC의 크기를 약 100~200 nm 크기의 분말을 조립과정을 거친 것을 이용한다.The powder of WC-CoCr and the powder of Cu-WC use a process of assembling the powder of about 100-200 nm in the size of WC.
이하에서, 상기의 목적을 달성하기 위한 본 발명을 첨부도면을 참조하여 상세히 설명한다. 도1은 본 발명이 관련된 전기도금 라인의 개요를 보여 주는데, 여기에서 1은 입측 통전롤, 2는 출측 통전롤, 3은 도금욕조, 4는 인덕션로, 5는 고온 롤, 6은 가열로, 7은 고주파 인덕션코일, 8은 전기도금 강판, 9는 접지, 10은 저온 롤을 각각 나타낸다. Hereinafter, with reference to the accompanying drawings, the present invention for achieving the above object will be described in detail. Figure 1 shows an overview of the electroplating line related to the present invention, where 1 is an entrance conduction roll, 2 is an exit conduction roll, 3 is a plating bath, 4 is an induction, 5 is a high temperature roll, 6 is a heating furnace, 7 denotes a high frequency induction coil, 8 denotes an electroplated steel sheet, 9 denotes a ground, and 10 denotes a low temperature roll.
본 발명은 이러한 전기도금 라인중 특히 전술한 바와 같이 고압고전류가 인가되어 아크가 발생하는 출측 통전롤(2)에 대한 코팅 구조를 개선하려는 것이다.The present invention seeks to improve the coating structure of the exit current-carrying
본 발명은 도2에 예시된 바와 같이 먼저 롤 모재(11) 위에 Cu 코팅(12)을 아크용사로 실시하여 전도성을 높이고, 그 위에 내마모성이 우수한 WC-CoCr, 또는 Cu-WC, 또는 Cu-W 코팅(13)을 실시한다. 특히 그 구조가 나노구조로 되어 있는 이 코팅은 주로 초고속화염용사(HVOF)를 이용하여 코팅을 실시한다. WC-CoCr 코팅은 WC-Co나 WC-CrC-Ni 코팅보다 내식성이 우수한 것으로 알려져 있어 WC-CoCr 코팅을 실시하고, Cu-W 코팅의 경우는 W의 양을 30~40 wt.%로, Cu-WC코팅의 경우는 WC의 양을 40~50 wt.%로 실시한다. 이 분율의 양이 접촉저항을 보다 적게 하는 것으로 알려져 있다. 그러나 접촉저항은 접촉하는 횟수에 따라 증가를 하는데, Cu보다 Cu-W, Cu-WC가 현저히 접촉횟수에 따라 더 증가하는 현상을 나타내고 있다. 이러한 문제를 해결하기 위해 WC-CoCr, Cu-WC, Cu-W 코팅위에 Cu 코팅(14)을 약 10~20 ㎛ 두께로 실시한다. 일반적으로 롤 코팅으로서 WC-CoCr, Cu-WC, Cu-W을 코팅을 실시함에 있어서는, 표면의 조도 Ra가 약 3~6 ㎛의 조도를 가지게 하고, 또한 롤과 강판과의 마찰력향상을 위해서 표면 조도를 일정하게 유지한다. 특히 약 Ra가 2~5 ㎛ 정도의 조도가 필요조도이다. 이러한 조도는 접촉저항을 증가시키는 역할을 하는 것이다. 이러한 접촉저항을 줄이기 위해 상기 코팅(13)위에 Cu 코팅(14)을 약 10~20 ㎛로 아크 코팅 실시한다. 그리하면, 처음에는 Cu 코팅(14)이 마모되면서 도3 처럼, 처음에는 Cu 코팅(14)의 마모가 많이 이루어지나, 어느정도 마모 후에는 WC-CoCr, 또는 Cu-WC, 또는 Cu-W의 WC나 W의 내마모성이 있는 코팅(13)이 표면에 나타나고, 그 나머지는 Cu 코팅(12)이 소성변형이 되어 표면을 덮게 됨으로써, 접촉저항을 현저히 줄일 수 있다. 특히 WC-CoCr, Cu-W, Cu-WC의 상에 있어서 전기가 잘 전도되지 않은 WC, W 상이 나노구조로 분산이 되어 상의 변화에 따른 아크 발생이 현저히 줄어들 수 있고, 그 위에 Cu상이 넓게 분포하기 때문에 WC-CoCr, Cu-W, Cu-WC 상의 접촉저항을 현저히 줄일 수 있다.In the present invention, as illustrated in FIG. 2, the
본 발명은 상술한 바와 같은 구성, 작용에 의해 전기도금 라인에 있어 고압고전류가 걸리는 통전롤에서는 아크발생을 효과있게 저감하여 롤의 수형을 향상시키고 도금품질을 향상시킬 수 있게 된 효과를 제공한다.The present invention provides an effect that can effectively reduce the generation of the arc to improve the shape of the roll and the plating quality in the energizing roll that takes a high pressure, high current in the electroplating line by the above-described configuration, action.
Claims (4)
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KR1020030097109A KR100553605B1 (en) | 2003-12-26 | 2003-12-26 | Roll coating for the roll of high voltage current in electroplating process |
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KR1020030097109A KR100553605B1 (en) | 2003-12-26 | 2003-12-26 | Roll coating for the roll of high voltage current in electroplating process |
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KR20050065938A KR20050065938A (en) | 2005-06-30 |
KR100553605B1 true KR100553605B1 (en) | 2006-02-22 |
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KR1020030097109A KR100553605B1 (en) | 2003-12-26 | 2003-12-26 | Roll coating for the roll of high voltage current in electroplating process |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100639117B1 (en) | 2005-10-12 | 2006-10-31 | 재단법인 포항산업과학연구원 | Wear resistant thermal spray coating compound with high electrical conductivity and the method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6046395A (en) * | 1983-08-23 | 1985-03-13 | Kobe Steel Ltd | Conductor roll for electroplating |
JPH059699A (en) * | 1991-07-08 | 1993-01-19 | Kawasaki Steel Corp | Conductor roll for electroplating line and production thereof |
JPH10110253A (en) * | 1996-10-04 | 1998-04-28 | Tocalo Co Ltd | Conductor roll for electroplating and its production |
JPH10110252A (en) * | 1996-10-04 | 1998-04-28 | Tocalo Co Ltd | Conductor roll for electroplating and its production |
KR20020051089A (en) * | 2000-12-22 | 2002-06-28 | 이구택 | Thermal Spray Method of Oxide Coatings for Rolls used in Molten Zinc Pot |
-
2003
- 2003-12-26 KR KR1020030097109A patent/KR100553605B1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6046395A (en) * | 1983-08-23 | 1985-03-13 | Kobe Steel Ltd | Conductor roll for electroplating |
JPH059699A (en) * | 1991-07-08 | 1993-01-19 | Kawasaki Steel Corp | Conductor roll for electroplating line and production thereof |
JPH10110253A (en) * | 1996-10-04 | 1998-04-28 | Tocalo Co Ltd | Conductor roll for electroplating and its production |
JPH10110252A (en) * | 1996-10-04 | 1998-04-28 | Tocalo Co Ltd | Conductor roll for electroplating and its production |
KR20020051089A (en) * | 2000-12-22 | 2002-06-28 | 이구택 | Thermal Spray Method of Oxide Coatings for Rolls used in Molten Zinc Pot |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100639117B1 (en) | 2005-10-12 | 2006-10-31 | 재단법인 포항산업과학연구원 | Wear resistant thermal spray coating compound with high electrical conductivity and the method thereof |
Also Published As
Publication number | Publication date |
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KR20050065938A (en) | 2005-06-30 |
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