JPH0126771Y2 - - Google Patents
Info
- Publication number
- JPH0126771Y2 JPH0126771Y2 JP18836185U JP18836185U JPH0126771Y2 JP H0126771 Y2 JPH0126771 Y2 JP H0126771Y2 JP 18836185 U JP18836185 U JP 18836185U JP 18836185 U JP18836185 U JP 18836185U JP H0126771 Y2 JPH0126771 Y2 JP H0126771Y2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- electrode
- plating
- edge
- electrodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007747 plating Methods 0.000 claims description 24
- 239000004063 acid-resistant material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000772415 Neovison vison Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ストリツプ等のメツキ設備に関し、
さらに詳しくは、メツキするストリツプ等の幅方
向の両端部付近を遮断するエツジマスクに関する
ものである。[Detailed description of the invention] [Field of industrial application] The invention relates to plating equipment such as strips,
More specifically, the present invention relates to an edge mask that blocks the vicinity of both ends in the width direction of a strip to be plated.
例えば、溶性電極方式のストリツプの電気メツ
キは、電解槽中の鋼帯の両面又は一方の面にメツ
キしようとする金属からなる溶性電極（以下電極
という）を配設し、電極を正、ストリツプを負と
して電圧を印加し、電極を電気分解して金属とし
て析出させ、ストリツプをメツキしている。
For example, in the electroplating of strips using the soluble electrode method, a soluble electrode (hereinafter referred to as an electrode) made of the metal to be plated is placed on both sides or one side of a steel strip in an electrolytic bath, and the electrode is placed in the positive direction and the strip is A negative voltage is applied, and the electrode is electrolyzed to deposit a metal, which is then plated into a strip.
このようなメツキ設備には、縦型、水平型、ラ
ジアル型等があり、縦型のメツキ設備の一例を第
５図に示す。図において、１は電解液が満たされ
たメツキ槽、２，３はメツキ槽１の上方に設けら
れたコンダクタロール、４はメツキ槽１の下部に
設けられたシンクロール５ａ〜５ｄはメツキ槽１
内において所定の距離を隔てて対向配置された各
一対の電極である。６はメツキするストリツプ
で、コンダクタロール２からメツキ槽１内に導か
れ、電極５ａと５ｂの間を通り、シンクロール４
を介して電極５ｃと５ｄの間を通り、コンダクタ
ロール３から取出される。そして、この間にスト
リツプ６の両面はメツキされる。 Such plating equipment includes vertical type, horizontal type, radial type, etc., and an example of the vertical type plating equipment is shown in FIG. In the figure, 1 is a plating tank filled with electrolyte, 2 and 3 are conductor rolls provided above the plating tank 1, and 4 are sink rolls 5a to 5d provided below the plating tank 1.
Each pair of electrodes are arranged facing each other with a predetermined distance apart within the periphery. 6 is a strip to be plated, which is led from the conductor roll 2 into the plating tank 1, passes between the electrodes 5a and 5b, and is connected to the sink roll 4.
It passes between the electrodes 5c and 5d via the conductor roll 3, and is taken out from the conductor roll 3. During this time, both sides of the strip 6 are plated.
ところで、このようなメツキ設備においては、
メツキに際して第６図に示すようにストリツプ６
の幅方向の両端部に大きな電流が流れるため、第
７図に示すように端部に析出した金属６ａが集中
し、いわゆるエツジオーバーコーテイングを生じ
る。このようなエツジオーバーコーテイングを防
止するため、第８図に示すようにストリツプ６の
幅方向の両端部に、これを遮断して電流の集中を
防止するエツジマスク７ａ〜７ｄを装備してい
る。なお、このエツジマスク７ａ〜７ｄは、メツ
キするストリツプ６の幅に応じて前後に移動しう
るようになつている。 By the way, in such plating equipment,
When plating, strip 6 as shown in Figure 6.
Since a large current flows through both ends in the width direction, the deposited metal 6a concentrates on the ends as shown in FIG. 7, resulting in so-called edge over coating. In order to prevent such edge overcoating, as shown in FIG. 8, edge masks 7a to 7d are provided at both widthwise ends of the strip 6 to block this and prevent current concentration. The edge masks 7a to 7d can be moved back and forth depending on the width of the strip 6 to be plated.
上記のようなメツキ設備においては、電極回り
の装置群が従来の構造物のままではストリツプの
幅方向の両端部を充分遮断することができず、こ
のためエツジオーバーコーテイングを効率よく防
止できないばかりでなく、メツキするストリツプ
は電極の間を蛇行しながら走行するため、エツジ
マスクが破損され易い等の問題があつた。
In the above-mentioned plating equipment, if the equipment surrounding the electrodes is of the conventional structure, it is not possible to sufficiently insulate both ends of the strip in the width direction, and therefore edge overcoating cannot be efficiently prevented. However, since the plating strip runs in a meandering manner between the electrodes, there were problems such as the edge mask being easily damaged.
本考案は、上記の問題点を解決すべくなされた
もので、
電極と所定の間隙を隔ててストリツプを走行さ
せ、前記電極とストリツプとの間に電圧を印加し
てメツキを行う設備において、前記ストリツプの
幅方向の両端部に近接して、高耐酸性材料からな
り長さ方向に溝条を有し該溝条内にダミー電極を
設けてなるエツジマスクを配設したメツキ設備を
提供するものである。
The present invention has been made to solve the above-mentioned problems, and provides a method for plating equipment in which a strip is run at a predetermined distance from an electrode and a voltage is applied between the electrode and the strip. The present invention provides plating equipment in which an edge mask made of a highly acid-resistant material and having grooves in the length direction and dummy electrodes provided in the grooves is disposed close to both ends of the strip in the width direction. be.
ストリツプのメツキにあたり、電極とストリツ
プとの間に電圧を印加すると共に、ダミー電極を
負電位として例えば電極との間に電圧を印加し、
電極の端部からの電流をダミー電極に流してスト
リツプのエツジオーバーコーテイングを防止す
る。
When plating the strip, a voltage is applied between the electrode and the strip, and a voltage is applied between the dummy electrode and the electrode, for example, with the dummy electrode at a negative potential.
Current from the end of the electrode is passed through the dummy electrode to prevent edge overcoating of the strip.
第１図は本考案実施例の要部を示す模式図であ
る。図において、５ａ，５ｂは所定の距離を隔て
て対向配置された電極、６は両電極５ａ，５ｂの
間を紙面に垂直方向に走行するストリツプであ
る。８は本考案に係るエツジマスクで、高耐酸性
の絶縁材料からなり、電極５ａ，５ｂ間において
ストリツプ６の幅方向の両端部にそれぞれ近接し
て配設されており、電極５ａ，５ｂの長さ（紙面
に垂直方向）とほぼ等しい長さのものである。こ
のエツジマスク８には、ストリツプ６と対向する
面の長さ方向に溝条９が設けられており、溝条９
内にはダミー電極１０が配設されている。１１は
エツジマスク８に取付けた駆動軸で、その端部は
空圧モータの如き駆動装置（図示せず）に連結さ
れている。
FIG. 1 is a schematic diagram showing the main parts of an embodiment of the present invention. In the figure, reference numerals 5a and 5b are electrodes that are placed opposite each other at a predetermined distance apart, and 6 is a strip that runs between the electrodes 5a and 5b in a direction perpendicular to the plane of the paper. Reference numeral 8 denotes an edge mask according to the present invention, which is made of a highly acid-resistant insulating material and is disposed close to both ends of the strip 6 in the width direction between the electrodes 5a and 5b, and the length of the electrodes 5a and 5b is (in the direction perpendicular to the page). This edge mask 8 is provided with a groove 9 in the length direction of the surface facing the strip 6.
A dummy electrode 10 is arranged inside. Reference numeral 11 denotes a drive shaft attached to the edge mask 8, the end of which is connected to a drive device (not shown) such as a pneumatic motor.
上記のように構成したエツジマスク８は、スト
リツプ６の幅に応じて矢印方向に移動させ、その
端部をストリツプ６の幅方向の端部に近接して位
置させる。 The edge mask 8 constructed as described above is moved in the direction of the arrow according to the width of the strip 6, and its end is positioned close to the end of the strip 6 in the width direction.
いま、電極５ａ，５ｂとストリツプ６との間に
電圧を印加すると共に、ダミー電極１１を負電位
として例えば電極５ａとの間に電圧を印加し、ス
トリツプ６を走行させてメツキを開始すると、電
極５ａ，５ｂからストリツプ６へはその幅方向に
ほぼ等しい大きさの電流が流れると共に、電極５
ａ，５ｂの端部付近からの電流はダミー電極１１
に流れる。このためストリツプ６の幅方向の端部
に大きな電流が流れないので、エツジオーバーコ
ーテイングの発生を防止することができる。ま
た、エツジマスク８の溝条９は開口部が大きくか
つ深く形成してあるので、ストリツプ６が蛇行し
ても破損するおそれがない。 Now, when a voltage is applied between the electrodes 5a, 5b and the strip 6, and the dummy electrode 11 is set to a negative potential, a voltage is applied between the electrode 5a, for example, and the strip 6 is run to start plating. 5a, 5b to the strip 6 in the width direction, currents of approximately equal magnitude flow, and the electrode 5
The current from near the ends of a and 5b is transferred to the dummy electrode 11.
flows to Therefore, a large current does not flow through the ends of the strip 6 in the width direction, so that edge overcoating can be prevented from occurring. Furthermore, since the grooves 9 of the edge mask 8 have large and deep openings, there is no risk of damage even if the strip 6 meanders.
第２図は本考案の他の実施例を示すもので、本
実施例においては、ダミー電極１０を溝条９の底
部に設けたものである。また第３図は本考案のさ
らに他の実施例で、ダミー電極１０を溝条９の側
壁に設けたもので、その作用効果はいずれも第１
図の実施例の場合と同じである。 FIG. 2 shows another embodiment of the present invention, in which a dummy electrode 10 is provided at the bottom of the groove 9. As shown in FIG. FIG. 3 shows still another embodiment of the present invention, in which a dummy electrode 10 is provided on the side wall of the groove strip 9, and its effects are the same as those of the first embodiment.
This is the same as in the embodiment shown.
第４図は本考案装置と従来装置の実施結果を示
すもので、諸条件を第１図に示すように次の通り
設定した。 FIG. 4 shows the results of the present invention and the conventional device, and the various conditions were set as shown in FIG. 1 as follows.
ストリツプ厚（ｔ）：0.7mm
ストリツプ幅（ｗ）：920mm
ストリツプの端部とダミー電極間の距離(l)：
40mm及び60mm
ダミー電極電流：45A
ストリツプとアノード電極間の距離(b)：20mm
目標付着量：両面40ｇ／m2
メツキ液：硫酸亜鉛400ｇ／ｌ
硫酸ソーダ30ｇ／ｌ
電流密度：80A／δm2
アノード電極：亜鉛電極
図から明らかなように、ダミー電極がない場合
は、ストリツプの端部（横軸の０）におけるエツ
ジオーバーコーテイングは237％（目標値100％に
対して）に達した。一方、本考案装置において
は、ストリツプの端部と遮蔽体の先端部との距離
ｌを60mmとした場合は約175％であつたが、上記
ｌを40mmとした場合は約130％となり、本考案装
置の効果がきわめて顕著であることが確認され
た。 Strip thickness (t): 0.7mm Strip width (w): 920mm Distance between strip end and dummy electrode (l):
40mm and 60mm Dummy electrode current: 45A Distance between strip and anode electrode (b): 20mm Target coating amount: 40g/m on both sides 2 Plating solution: Zinc sulfate 400g/l Sodium sulfate 30g/l Current density: 80A/δm 2 Anode Electrode: Zinc electrode As is clear from the figure, without the dummy electrode, the edge overcoating at the end of the strip (0 on the horizontal axis) reached 237% (relative to the target value of 100%). On the other hand, in the device of the present invention, when the distance l between the end of the strip and the tip of the shield was set to 60 mm, it was about 175%, but when the distance l was set to 40 mm, it was about 130%, It was confirmed that the effect of the invented device was extremely significant.
上記の説明では、本考案を縦型のメツキ設備に
実施した場合を示したが、水平型又はラジアル型
のメツキ設備にも実施することができ、また、ス
トリツプの片面側にのみ電極を配設した場合にも
本考案を実施することができる。さらに、上記実
施例では溶性電極のメツキ設備に本考案を実施し
た場合を示したが、不溶性電極のメツキ設備にも
実施しうることは言う迄もない。 In the above explanation, the present invention was applied to vertical plating equipment, but it can also be applied to horizontal or radial plating equipment, and electrodes are arranged only on one side of the strip. The present invention can also be implemented in such cases. Furthermore, although the above embodiments show the case where the present invention is implemented in equipment for plating soluble electrodes, it goes without saying that it can also be implemented in equipment for plating insoluble electrodes.
以上の説明から明らかなように、本考案はエツ
ジマスクにダミー電極を設けて電極の端部からの
電流をこのダミー電極に流すようにしたので、ス
トリツプの幅方向の端部にエツジオーバーコーテ
イングが発生するのを防止することができ、ま
た、ストリツプが蛇行してもエツジマスクが破損
するおそれがない等、実用に供して効果大であ
る。
As is clear from the above explanation, in the present invention, a dummy electrode is provided on the edge mask so that the current from the edge of the electrode flows through the dummy electrode, so edge overcoating occurs at the edge in the width direction of the strip. In addition, even if the strip meanderes, there is no risk of damaging the edge mask, which is highly effective in practical use.
第１図は本考案実施例の模式図、第２図、第３
図は本考案の他の実施例の要部を示す模式図、第
４図は本考案に係るエツジマスクとダミー電極の
ないエツジマスクを使用した場合の実験結果を示
す線図、第５図は従来の縦型メツキ設備の模式
図、第６図は電極からストリツプの端部へ流れる
電流の状態を示す説明図、第７図はエツジオーバ
ーコーテイングの発生状態を示す説明図、第８図
は第５図のＡ−Ａ拡大断面図である。
１……メツキ槽、２，３……コンダクタロー
ル、４……ミンクロール、５，５ａ……電極、６
……ストリツプ、８……エツジマスク、９……溝
条、１０……ダミー電極、１１……駆動軸。
Figure 1 is a schematic diagram of an embodiment of the invention, Figures 2 and 3.
The figure is a schematic diagram showing the main part of another embodiment of the present invention, FIG. 4 is a diagram showing the experimental results when using the edge mask according to the present invention and an edge mask without dummy electrodes, and FIG. 5 is a diagram showing the conventional edge mask. A schematic diagram of vertical plating equipment, Fig. 6 is an explanatory diagram showing the state of current flowing from the electrode to the end of the strip, Fig. 7 is an explanatory diagram showing the state of occurrence of edge over coating, and Fig. 8 is Fig. 5 It is an AA enlarged sectional view of. 1... Plating tank, 2, 3... Conductor roll, 4... Mink roll, 5, 5a... Electrode, 6
... Strip, 8 ... Edge mask, 9 ... Groove, 10 ... Dummy electrode, 11 ... Drive shaft.
Claims (1)
せ、前記電極とストリツプとの間に電圧を印加し
てメツキを行う設備において、 前記ストリツプの幅方向の両端部に近接して、
高耐酸性材料からなり長さ方向に溝条を有し該溝
条内にダミー電極を設けてなるエツジマスクを配
設したことを特徴とするメツキ設備。[Claims for Utility Model Registration] In equipment for plating by running a strip at a predetermined distance from an electrode and applying a voltage between the electrode and the strip, do,
1. A plating equipment comprising an edge mask made of a highly acid-resistant material and having grooves in the length direction and a dummy electrode provided within the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18836185U JPH0126771Y2 (en) | 1985-12-09 | 1985-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18836185U JPH0126771Y2 (en) | 1985-12-09 | 1985-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6297176U JPS6297176U (en) | 1987-06-20 |
| JPH0126771Y2 true JPH0126771Y2 (en) | 1989-08-10 |
Family
ID=31139648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18836185U Expired JPH0126771Y2 (en) | 1985-12-09 | 1985-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0126771Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4977046B2 (en) * | 2008-01-21 | 2012-07-18 | Ｊｘ日鉱日石金属株式会社 | Edge overcoat prevention device and electroplating material manufacturing method using the same |
-
1985
- 1985-12-09 JP JP18836185U patent/JPH0126771Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6297176U (en) | 1987-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1069460A (en) | Method of producing metal strip having a galvanized coating on one side | |
| JPH0126771Y2 (en) | ||
| PL330923A1 (en) | Method of and apparatus for electroplating with metal film working surface of a cylinder for continuous casting of thin metal strips | |
| JPH0126770Y2 (en) | ||
| JPS6348956B2 (en) | ||
| US6678148B2 (en) | Method for producing electrodes as well as electrodes produced by the method | |
| US4548685A (en) | Process for electrolytically removing metal deposit from a non-plated surface of a single surface-plated metal strip | |
| JP2901461B2 (en) | Electrode unit for electric treatment tank of metal strip | |
| JPS6111230Y2 (en) | ||
| JPH06220699A (en) | Device for electrolytically pickling steel material | |
| JPS6034636B2 (en) | Method and device for preventing plating from turning in electric plating | |
| JP2799214B2 (en) | Descaling method of titanium plate | |
| JPS6212318B2 (en) | ||
| KR970009433B1 (en) | Process for the prevention of arc-spot in electroplating | |
| JPH0421824Y2 (en) | ||
| JPS5835658Y2 (en) | variable width electrode | |
| JPH06297245A (en) | Electrolytic deburring method for long size material | |
| JP2551092B2 (en) | Method and apparatus for preventing over-plating of end portions of metal strip in electric plating line | |
| JP3027118B2 (en) | Vertical electroplating apparatus and electrochrome plating method | |
| JP2005307250A (en) | Method for producing tinned steel strip and horizontal tinning cell | |
| JPS60174900A (en) | Electrolytic treating device for steel hoop | |
| JPS60231000A (en) | Electrolytically treating device for steel strip | |
| JP2540023Y2 (en) | Vertical electrolytic plating equipment | |
| JPS63266090A (en) | Equipment for electroplating strip | |
| JPS60230999A (en) | Electrolytic treatment of steel strip |