JPH04311599A - Electrolytic polishing method for steel plate - Google Patents
Electrolytic polishing method for steel plateInfo
- Publication number
- JPH04311599A JPH04311599A JP7768191A JP7768191A JPH04311599A JP H04311599 A JPH04311599 A JP H04311599A JP 7768191 A JP7768191 A JP 7768191A JP 7768191 A JP7768191 A JP 7768191A JP H04311599 A JPH04311599 A JP H04311599A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- electrolytic bath
- water
- electrolytic
- polishing
- 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.)
- Pending
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 238000005554 pickling Methods 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 5
- 230000006866 deterioration Effects 0.000 abstract description 6
- 239000007832 Na2SO4 Substances 0.000 abstract description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 3
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ペースト状電解浴を用
いた鋼板表面の電解研摩方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for electropolishing the surface of a steel plate using a paste electrolytic bath.
【０００２】0002
【従来の技術】厚鋼板のミルスケール除去方法には、シ
ョットブラスト、サンドブラストによる方法、砥石、ベ
ルト砥石等による方法、あるいは両者の組み合わせによ
るいわゆる機械的除去方法と、ステンレス鋼のごとく酸
洗槽による化学的除去方法が従来より行われている。[Prior Art] Mill scale removal methods for thick steel plates include shot blasting, sandblasting, grindstones, belt grindstones, etc., or a combination of the two, so-called mechanical removal methods, and methods for removing mill scale from stainless steel, such as pickling baths. Chemical removal methods are conventional.
【０００３】これに対して電気化学的研摩法である移動
電極方式による部分電解酸洗研摩法が開発された（特開
昭６４−４５００号公報参照）。この研摩法は、電気化
学的方法であるので、機械的研摩法に比べて研摩負荷を
減少でき、研摩時の発熱も小さく、研摩歪の発生を抑制
でき、さらに、移動電極方式による部分酸洗研摩法であ
るために、酸洗槽によるドブ漬方法に比べて設備の小型
化、効率化を図ることができるという長所がある。In response to this, a partial electrolytic pickling polishing method using a moving electrode method, which is an electrochemical polishing method, has been developed (see Japanese Patent Laid-Open No. 4500/1983). Since this polishing method is an electrochemical method, it can reduce the polishing load compared to mechanical polishing methods, generate less heat during polishing, and suppress the occurrence of polishing distortion. Since it is a polishing method, it has the advantage that equipment can be made smaller and more efficient than the pickling method using a pickling tank.
【０００４】0004
【発明が解決しようとする課題】移動電極方式による部
分電解酸洗研摩法（以下電解研摩と略称する）は、薄鋼
板のように酸洗槽を連続通板できない厚鋼板を対象とす
ること及び電極を移動しながら部分的に処理を行うこと
等の理由により、ペースト状の電解浴と、当電解浴を電
極と被研摩材間に保持するために軟質パッド（機械的研
摩能を付与するために若干の砥粒混入の場合がある）と
を電極直下に取り付けた形式となる。電解浴は取り扱い
上及び設備上の対応から中性塩が用いられる場合が多い
。[Problems to be Solved by the Invention] The partial electrolytic pickling and polishing method (hereinafter abbreviated as electrolytic polishing) using a moving electrode method is applicable to thick steel plates that cannot be continuously passed through a pickling tank, such as thin steel plates. Due to reasons such as partially processing the electrode while moving it, a paste-like electrolytic bath and a soft pad (to provide mechanical polishing ability) are used to hold the electrolytic bath between the electrode and the material to be polished. (some abrasive particles may be mixed in) is attached directly below the electrode. Neutral salts are often used in electrolytic baths due to handling and equipment considerations.
【０００５】ペースト状中性塩を用いた場合の電極側（
カソード側）と鋼板側（アノード側）の化学反応は後述
の如くとなり、電解浴中で消費されるのは水（Ｈ２Ｏ）
である。従って電解浴は、含有される水が消失しないか
ぎり電解酸洗に有効に使用できるが、実際には除去した
スケールの混入、電極及び鋼板での発熱による水分の蒸
発によって著しく劣化する。[0005] When using a paste-like neutral salt, the electrode side (
The chemical reaction between the cathode side) and the steel plate side (anode side) is as described below, and what is consumed in the electrolytic bath is water (H2O).
It is. Therefore, an electrolytic bath can be effectively used for electrolytic pickling as long as the water contained therein does not disappear, but in reality it deteriorates significantly due to contamination with removed scale and evaporation of water due to heat generation at the electrodes and steel plates.
【０００６】従って、電解研摩を効率よく行っていくた
めには、理論的に必要とされる以上のペースト状電解浴
を供給する必要があり、しかも一度使用した電解浴はス
ケールを含有しており、ペースト状であるために含有し
たスケールの除去が困難で再使用が難しく、電解浴原単
位の上昇という問題があった。本発明は、上記の問題を
解決した鋼板の電解研摩方法を提供することを目的とす
る。[0006] Therefore, in order to perform electrolytic polishing efficiently, it is necessary to supply more paste-like electrolytic bath than is theoretically required, and moreover, once used electrolytic bath contains scale. Since it is paste-like, it is difficult to remove the scale contained therein, making it difficult to reuse it, and there is a problem of an increase in the electrolytic bath unit consumption. An object of the present invention is to provide a method for electrolytic polishing of a steel plate that solves the above problems.
【０００７】[0007]
【課題を解決するための手段】本発明は、ペースト状の
中性塩電解浴を用いて鋼板の表面を電解研摩する際に、
電解酸洗研摩部に予め電解浴供給系外から水を供給しな
がら、電解研摩することを特徴とする鋼板の電解研摩方
法である。[Means for Solving the Problems] The present invention provides the following advantages when electrolytically polishing the surface of a steel plate using a paste-like neutral salt electrolytic bath.
This is an electrolytic polishing method for a steel plate, characterized in that electrolytic polishing is performed while water is previously supplied to the electrolytic pickling polishing part from outside the electrolytic bath supply system.
【０００８】[0008]
【作 用】本発明は、前記問題点を解決するために、
ペースト状の中性塩電解浴を用いて鋼板の表面を電解研
摩する際に、電解酸洗研摩部に予め電解浴供給系外から
水を供給しながら、電解研摩することにより、電解反応
及び発熱によって消費される電解浴中の水の消失を抑え
、電解浴の劣化速度を低下させるものである。[Operation] In order to solve the above problems, the present invention has the following features:
When electrolytically polishing the surface of a steel plate using a paste-like neutral salt electrolytic bath, water is supplied to the electrolytic pickling and polishing part from outside the electrolytic bath supply system in advance to prevent electrolytic reactions and heat generation. This suppresses the loss of water consumed in the electrolytic bath and reduces the rate of deterioration of the electrolytic bath.
【０００９】電解浴供給系外からの供給とするのは、ペ
ースト状電解質の粘度を保持するためである。供給系を
同一とすると、水の混入により電解浴の粘度が低下し、
パッド内での電解浴の保持量が減少して、電解研摩の効
率が低下する。電解研摩での電気化学反応は以下の（化
１）〜（化６）に示す如くである。The reason why the electrolyte is supplied from outside the electrolytic bath supply system is to maintain the viscosity of the paste electrolyte. If the supply system is the same, the viscosity of the electrolytic bath will decrease due to water contamination,
The amount of electrolytic bath retained within the pad is reduced, reducing the efficiency of electrolytic polishing. The electrochemical reactions in electrolytic polishing are as shown in (Chemical formula 1) to (Chemical formula 6) below.
【００１０】0010
【化１】[Chemical formula 1]
【００１１】（化１）〜（化６）に示す如く、電解浴中
で消費される物質は水（ Ｈ２Ｏ）のみである。従って
本発明の如く、消費される水を補給すれば電解浴の水の
消費による劣化は防止できることになる。As shown in (Chemical Formulas 1) to (Chemical Formulas 6), the only substance consumed in the electrolytic bath is water (H2O). Therefore, as in the present invention, by replenishing consumed water, deterioration of the electrolytic bath due to water consumption can be prevented.
【００１２】0012
【実施例】図１は本発明の方法を実施するのに用いる装
置の一実施例を模式的に示した断面図であり、図２はそ
の要部の平面図である。図１、２において、１は鋼板で
あり、プラス側である。２は鋼板１のスケール層である
。３は電極保持ヘッド４により回転可能に保持された電
極（マイナス）である。５は電解電源である。６は軟質
パッド、７はペースト状電解浴である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view schematically showing an embodiment of an apparatus used to carry out the method of the present invention, and FIG. 2 is a plan view of the main parts thereof. In FIGS. 1 and 2, 1 is a steel plate and is on the plus side. 2 is a scale layer of the steel plate 1. Reference numeral 3 denotes an electrode (minus) rotatably held by the electrode holding head 4. 5 is an electrolytic power source. 6 is a soft pad, and 7 is a paste electrolytic bath.
【００１３】この装置は、電極保持ヘッド４の進行方向
前後に取り付けた水供給ヘッダ８により、進行方向前面
へ予め水９を散布する機能を有する。これにより、水は
鋼板１の表面に薄膜となって存在し、軟質パッド６内の
電解浴との不必要な混合が生じにくい。従って、電解浴
の粘度低下、研摩効率の低下をきたすことなく研摩を行
い得る。This device has a function of spraying water 9 in advance to the front surface in the direction of movement by water supply headers 8 attached to the front and rear of the electrode holding head 4 in the direction of movement. Thereby, water exists as a thin film on the surface of the steel plate 1, and unnecessary mixing with the electrolytic bath in the soft pad 6 is less likely to occur. Therefore, polishing can be performed without reducing the viscosity of the electrolytic bath or reducing polishing efficiency.
【００１４】次に、図３は、この装置を使用し、下記条
件で本発明の方法を実施した場合において、水散布量と
発生電圧値の関係を示したものである。
ペースト状電解浴組成 ：１０％ Ｎａ２ＳＯ４ペー
スト状電解浴供給量：１ｌ／ｍ２
電極面積 ：２３００ｃｍ
２電流値 ： ８００
Ａ図３からわかるように、散布量が大きすぎると、ペー
スト状電解浴との混合が大となり、電圧値が上昇（研摩
効率低下）する。Next, FIG. 3 shows the relationship between the amount of water sprayed and the generated voltage value when this apparatus is used and the method of the present invention is carried out under the following conditions. Paste electrolytic bath composition: 10% Na2SO4 paste electrolytic bath supply amount: 1l/m2 Electrode area: 2300cm
2 current value: 800
As can be seen from FIG. 3, if the amount of spraying is too large, mixing with the paste electrolytic bath will be large and the voltage value will increase (polishing efficiency decreases).
【００１５】図４は、上記装置を使用し、下記条件で本
発明の方法を実施した場合において、同一研摩面を得る
ために必要な水散布量とペースト状電解浴の関係を示し
たものである。
ペースト状電解浴組成 ：１０％ Ｎａ２ＳＯ４電極
面積 ：２３００ｃｍ２電
流値 ： ８００Ａ図
３と同様、散布量が大きすぎると効率が低下することが
わかる。FIG. 4 shows the relationship between the amount of water spray and the paste electrolytic bath required to obtain the same polished surface when the method of the present invention is carried out using the above-mentioned apparatus under the following conditions. be. Paste electrolytic bath composition: 10% Na2SO4 electrode area: 2300cm2 Current value: 800A As in Figure 3, it can be seen that when the amount of spraying is too large, the efficiency decreases.
【００１６】従って当実施例の場合、水の散布量は ０
．８ｌ／ｍ２以下が適宜である。当方法により、水分の
消費によるペースト状電解浴の劣化が抑制でき、電解浴
の必要供給量を５０％程度削減できた。Therefore, in the case of this embodiment, the amount of water sprayed is 0
．． 8 l/m2 or less is appropriate. By this method, deterioration of the paste electrolytic bath due to water consumption could be suppressed, and the required supply amount of the electrolytic bath could be reduced by about 50%.
【００１７】[0017]
【発明の効果】以上説明したように、本発明によってペ
ースト状電解浴を用いた部分電解酸洗研摩法において、
研摩部に水を供給することによって、電解浴中で消費さ
れる水が補給され、水消費による電解浴の劣化を抑制す
ることができるようになった。これにより、電解浴の必
要供給量を大幅に削減でき、コスト削減が実現できる。[Effects of the Invention] As explained above, in the partial electrolytic pickling and polishing method using a paste electrolytic bath according to the present invention,
By supplying water to the polishing section, the water consumed in the electrolytic bath is replenished, making it possible to suppress deterioration of the electrolytic bath due to water consumption. As a result, the required supply amount of electrolytic bath can be significantly reduced, and cost reduction can be realized.
【図１】本発明の方法を実施するのに用いる装置の一実
施例を模式的に示した断面図である。FIG. 1 is a cross-sectional view schematically showing an embodiment of an apparatus used to carry out the method of the present invention.
【図２】本発明の方法を実施するのに用いる装置の一実
施例の要部を示す平面図である。FIG. 2 is a plan view showing essential parts of an embodiment of an apparatus used to carry out the method of the present invention.
【図３】本発明の実施における水散布量と発生電圧値の
関係を示すグラフである。FIG. 3 is a graph showing the relationship between the amount of water sprayed and the generated voltage value in the implementation of the present invention.
【図４】本発明を実施した場合における同一研磨面を得
るために必要な水散布量とペースト状電解浴の関係を示
すグラフである。FIG. 4 is a graph showing the relationship between the amount of water spray and the paste electrolytic bath required to obtain the same polished surface when the present invention is carried out.
１ 鋼板 ２ スケール層 ３ 電極（マイナス） ４ 電極保持ヘッド ５ 電解電源 ６ 軟質パッド ７ ペースト状電解浴 ８ 水供給ヘッダ ９ 水 1 Steel plate 2 Scale layer 3 Electrode (negative) 4 Electrode holding head 5 Electrolysis power supply 6 Soft pad 7 Paste electrolytic bath 8 Water supply header 9 Water
Claims (1)
板の表面を電解研摩する際に、電解酸洗研摩部に予め電
解浴供給系外から水を供給しながら、電解研摩すること
を特徴とする鋼板の電解研摩方法。[Claim 1] When electrolytically polishing the surface of a steel plate using a paste-like neutral salt electrolytic bath, it is possible to carry out the electrolytic polishing while supplying water from outside the electrolytic bath supply system to the electrolytic pickling and polishing part in advance. Features of the electrolytic polishing method for steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7768191A JPH04311599A (en) | 1991-04-10 | 1991-04-10 | Electrolytic polishing method for steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7768191A JPH04311599A (en) | 1991-04-10 | 1991-04-10 | Electrolytic polishing method for steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04311599A true JPH04311599A (en) | 1992-11-04 |
Family
ID=13640635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7768191A Pending JPH04311599A (en) | 1991-04-10 | 1991-04-10 | Electrolytic polishing method for steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04311599A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8201619B2 (en) | 2005-12-21 | 2012-06-19 | Exxonmobil Research & Engineering Company | Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery |
| US8286695B2 (en) | 2005-12-21 | 2012-10-16 | Exxonmobil Research & Engineering Company | Insert and method for reducing fouling in a process stream |
-
1991
- 1991-04-10 JP JP7768191A patent/JPH04311599A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8201619B2 (en) | 2005-12-21 | 2012-06-19 | Exxonmobil Research & Engineering Company | Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery |
| US8286695B2 (en) | 2005-12-21 | 2012-10-16 | Exxonmobil Research & Engineering Company | Insert and method for reducing fouling in a process stream |
| US8469081B2 (en) | 2005-12-21 | 2013-06-25 | Exxonmobil Research And Engineering Company | Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery |
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