JPH0417695A - Surface treatment method for metal strip - Google Patents
Surface treatment method for metal stripInfo
- Publication number
- JPH0417695A JPH0417695A JP12215990A JP12215990A JPH0417695A JP H0417695 A JPH0417695 A JP H0417695A JP 12215990 A JP12215990 A JP 12215990A JP 12215990 A JP12215990 A JP 12215990A JP H0417695 A JPH0417695 A JP H0417695A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- steel plate
- treatment
- acid
- metal strip
- 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.)
- Granted
Links
- 238000004381 surface treatment Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 title claims description 23
- 239000002184 metal Substances 0.000 title claims description 23
- 239000002253 acid Substances 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 61
- 239000010959 steel Substances 0.000 abstract description 61
- 239000012535 impurity Substances 0.000 abstract description 7
- 239000003513 alkali Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229910007567 Zn-Ni Inorganic materials 0.000 description 2
- 229910007614 Zn—Ni Inorganic materials 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000005029 tin-free steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000007832 Na2SO4 Substances 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
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000011149 sulphuric acid Nutrition 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
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
- 235000009529 zinc sulphate Nutrition 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、金属帯の表面処理方法に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to a method for surface treatment of metal strips.
〈従来の技術〉
般に鋼板の表面処理方法の１つとして、電極を備え、電
解質溶液を満たした処理槽に鋼板を通し、この処理槽の
前後で通電ロールを介して鋼板に電流を流す方法が行わ
れている。<Prior art> Generally, one of the methods for surface treatment of steel sheets is to pass the steel sheet through a treatment tank equipped with electrodes and filled with an electrolyte solution, and to apply an electric current to the steel sheet through current-carrying rolls before and after the treatment tank. is being carried out.
しかし、このような方法では、鋼板ストリップを表面処
理した場合、生じた不純物が鋼板面に付着し、更に後続
の通電ロールに堆積して、通電不良か生ずるという問題
があった。However, in such a method, when a steel sheet strip is surface-treated, the resulting impurities adhere to the surface of the steel sheet and are further deposited on the subsequent energizing roll, resulting in poor energization.
この現象は、鋼板を陰極にして処理する（例えば、ラジ
アルセルを用いて鋼板の表裏面を同時にはめっきせず、
片面ずつを電気亜鉛め）きする）場合、鋼板の非めっぎ
面側へのＺｎの回り込みが生じ、後続の通電ロールと鋼
板との間でスパークを発生して、鋼板の表面性状を損な
うといった場合等で見られた。This phenomenon can be solved by treating the steel plate as a cathode (for example, by not plating the front and back sides of the steel plate at the same time using a radial cell,
When electrogalvanizing one side at a time), Zn wraps around to the non-galvanized side of the steel sheet, generating sparks between the subsequent energized roll and the steel sheet, damaging the surface quality of the steel sheet. It was seen in such cases.
また、鋼板を陽極にして処理する（例えば、ティンフリ
ー鋼板製造時の逆電解を鋼板に施す）場合、スマット（
金属の酸化物）が発生しやすく、この金属の酸化物は金
属に比べ電気抵抗は１０倍はど大であるため、スマット
が鋼板に付着して後続の通電ロールに堆積し、通電不良
を起こし、かつ鋼板との間でスパークを生じていた。In addition, when processing a steel plate using it as an anode (for example, subjecting the steel plate to reverse electrolysis during tin-free steel plate production), smut (
Metal oxides are likely to occur, and the electrical resistance of these metal oxides is 10 times greater than that of metals, so smut adheres to the steel plate and accumulates on the subsequent energizing roll, causing poor energization. , and sparks were generated between the steel plate and the steel plate.
更に、Ｚｎ−Ｎｉ合金めっき鋼板に交番電流を印加し黒
色鋼板を製造する場合も、同様な現象が生じていた。Furthermore, a similar phenomenon occurs when a black steel plate is manufactured by applying an alternating current to a Zn-Ni alloy plated steel plate.
〈発明が解決しようとする課題〉
本発明は、通電ロールにおいて通電不良を生じないよう
な金属帯の表面処理方法を提供することを目的としてい
る。<Problems to be Solved by the Invention> An object of the present invention is to provide a method for surface treatment of a metal strip that does not cause failure in energization in an energizing roll.
く課題を解決するための手段〉
本発明は、鋼板を陰極または陽極侶理すると、生じた不
純物（特に、スマット）が、そのまま鋼板に付着し後続
のロールと鋼板間に堆積しやすいので、生じた不純物を
溶解すれば良いとの着想に基づいてなされたものである
。Means for Solving the Problems> The present invention solves the problem that when a steel plate is subjected to cathode or anode treatment, the generated impurities (especially smut) tend to adhere to the steel plate and accumulate between the subsequent roll and the steel plate. This idea was based on the idea that it would be sufficient to dissolve the impurities that were present.
すなわち、上記目的を達成するために本発明によれば、
電解処理槽の入側および／または出側に少なくとも１個
の通電ロールを有する表面処理設備を用いて金属帯表面
を電解質溶液中で陽極および／または陰極処理する際に
、前記通電ロール上と前記通電ロールの通板方向に見て
上流側の前記金属帯上の少なくとも一方に酸またはアル
カリ水溶液を散布することを特徴とする金属帯の表面処
理方法が提供される。That is, according to the present invention, in order to achieve the above object,
When the surface of the metal strip is anodically and/or cathodically treated in an electrolyte solution using a surface treatment equipment having at least one energized roll on the inlet and/or outlet side of the electrolytic treatment tank, the surface of the metal strip is anodically and/or cathodically treated in an electrolyte solution. A method for surface treatment of a metal strip is provided, which comprises spraying an acid or alkaline aqueous solution onto at least one of the metal strips on the upstream side as viewed in the direction in which the current-carrying roll passes.
また、本発明によれば、電解処理槽の入側および／また
は出側に少なくとも１個の通電ロールを有する表面処理
設備を用いて金属帯表面を電解′Ｘ溶液中で陽極および
／または陰極処理する際に、前記通電ロール上と前記通
電ロールの通板方向に見て上流側の前記金属帯上の少な
くとも一方に酸またはアルカリ水溶液を散布するととも
に、前記通電ロールの少なくとも１個の表面をロールポ
リラシャ−で研磨することを特徴とする金属帯の表面処
理方法が提供される。Further, according to the present invention, the surface of the metal strip is anodically and/or cathodically treated in an electrolytic 'X solution using a surface treatment equipment having at least one energized roll on the inlet side and/or outlet side of the electrolytic treatment tank. When doing so, an acid or alkaline aqueous solution is sprayed on at least one of the current-carrying roll and the metal band on the upstream side when viewed from the current-carrying direction of the current-carrying roll, and at least one surface of the current-carrying roll is rolled. A method of surface treatment of a metal strip is provided, which is characterized by polishing with a polyshar.
ここで、前記酸水溶液のｐＨは０．５〜２であり、前記
アルカリ水溶液のｐＨは１２．５〜１３．５であるのが
好ましい。Here, the pH of the acid aqueous solution is preferably 0.5 to 2, and the pH of the alkaline aqueous solution is preferably 12.5 to 13.5.
以下に本発明をされに詳細に説明する。The present invention will be explained in detail below.
本発明は鋼板のみならず、銅板、しんちゅう板などの金
属板を電解処理する際にも適用可能であるが、以下の説
明では鋼板について述べる。Although the present invention can be applied not only to steel plates but also to electrolytically treating metal plates such as copper plates and brass plates, the following description will be directed to steel plates.
第１図は、本発明を適用した鋼板の表面処理設備の１例
を示す一部断面側面図である。FIG. 1 is a partially sectional side view showing an example of a steel sheet surface treatment equipment to which the present invention is applied.
鋼板２０は、矢印１の方向に通板され、処理槽６の入側
の通電ロール５とバックアップロール１０との間を通り
、処理槽６内に装入される。The steel plate 20 is passed in the direction of the arrow 1, passes between the energized roll 5 and the backup roll 10 on the entry side of the processing tank 6, and is charged into the processing tank 6.
前記鋼板２０は、熱延鋼板、冷延鋼板、表面処理鋼板（
電気亜鉛めっき鋼板、溶融亜鉛めっき鋼板等）等、鋼板
ならば何でも良く、特に限定しない。The steel plate 20 may be a hot-rolled steel plate, a cold-rolled steel plate, or a surface-treated steel plate (
Any steel plate may be used, such as electrogalvanized steel plate, hot-dip galvanized steel plate, etc., and is not particularly limited.
前記処理槽６内には電極８が設けられ、その前後に各１
対のダムロール７が配設されている。An electrode 8 is provided in the processing tank 6, and one electrode is provided before and after the electrode 8.
A pair of dumb rolls 7 are provided.
前記処理ａｉ６を出た鋼板２０は、出側の通電ロール１
１とバックアップロール１２との間を通り、次工程へ撤
退される。The steel plate 20 that has come out of the treatment ai6 is passed through the energizing roll 1 on the exit side.
1 and the backup roll 12, and is withdrawn to the next process.
なお、上記の各種ロールおよび電極の配置および数はこ
れに限定されるものではない。Note that the arrangement and number of the various rolls and electrodes described above are not limited to these.
前記処理槽６内の電解買溶液９は、イオンを含む液体で
あれば何でも良く、特に限定しない。The electrolytic solution 9 in the processing tank 6 may be any liquid as long as it contains ions, and is not particularly limited.
２．３は鋼板２０上ならびに通電ロール５および１１上
に散布する酸またはアルカリ水溶液であり、酸、アルカ
リ水溶液の種類およびｐＨは任意に選定でき、特に限定
しない。 ただし、酸水溶液のｐＨは、０．５〜２であ
った方がよい。 ｐＨが０．５未満であると鋼板自体の
表面が溶解するおそれがある。 また、ｐＨが２を越え
ると不純物が完全に溶解しない。2.3 is an acid or alkali aqueous solution to be sprayed onto the steel plate 20 and the current-carrying rolls 5 and 11, and the type and pH of the acid and alkali aqueous solutions can be arbitrarily selected and are not particularly limited. However, the pH of the acid aqueous solution is preferably 0.5 to 2. If the pH is less than 0.5, the surface of the steel plate itself may dissolve. Furthermore, if the pH exceeds 2, impurities will not be completely dissolved.
アルカリ水溶液の場合はｐＨ１２，５〜１３．５がよい
。 ｐＨ１２，５未満であると不純物が完全に溶解し
ない。 また、ｐＨが１３．５を越えると不純物以外に
鋼板表面を大幅に溶解してしまい鋼板の品質を落とす場
合が多いからである。In the case of an alkaline aqueous solution, the pH is preferably 12.5 to 13.5. If the pH is less than 12.5, impurities will not be completely dissolved. Furthermore, if the pH exceeds 13.5, the surface of the steel sheet will be significantly dissolved in addition to impurities, often degrading the quality of the steel sheet.
鋼板上に散布する酸またはアルカリ水溶液２の散布位置
は、入側通電ロール５の通板方向に見て上流側および処
理槽６と出側通電ロール１１との間に設けるのがよい。The spraying position of the acid or alkaline aqueous solution 2 on the steel plate is preferably provided on the upstream side of the inlet energizing roll 5 when viewed from the sheet passing direction, and between the treatment tank 6 and the outlet energizing roll 11.
上記酸またはアルカリ水溶液２または３の散布は、第２
図に示すように鋼板２０あるいは通電ロール５または１
１の幅方向に複数のノズル１３を設けて行うと均一に散
布するのに適しているが、これに限るものではない。Spraying the acid or alkali aqueous solution 2 or 3 is carried out in the second step.
As shown in the figure, a steel plate 20 or an energizing roll 5 or 1
Providing a plurality of nozzles 13 in the width direction is suitable for uniformly distributing the spray, but the invention is not limited to this.
また、酸またはアルカリ水溶液２．３の散布を処理槽６
の下流側で行う場合は、散布した水溶液は処理槽６に混
入することがないので好ましい。In addition, the acid or alkaline aqueous solution 2.3 is sprayed in the treatment tank 6.
It is preferable to carry out the treatment downstream of the treatment tank 6 because the sprayed aqueous solution will not be mixed into the treatment tank 6.
更に通電ロール５．１１にロールポリラシャ−４を併用
すれば、散布する酸またはアルカリ水溶液２および／ま
たは３の濃度は低くでき鋼板の品質を落とす危険が少な
くなる。Further, by using the roll Polyrusher 4 together with the current-carrying roll 5.11, the concentration of the acid or alkali aqueous solution 2 and/or 3 to be sprayed can be lowered, reducing the risk of degrading the quality of the steel sheet.
ロールポリラシャ−４は、第３図に示すように、通電ロ
ールの全幅に砥石、スコッチブライト等の研磨面が対応
できるものが好ましい。As shown in FIG. 3, the roll polisher 4 is preferably one in which a polishing surface such as a grindstone or Scotchbrite can cover the entire width of the current-carrying roll.
〈実施例〉 以下に本発明を実施例に基づき具体的に説明する。<Example> The present invention will be specifically described below based on Examples.
（実施例１）
第１図に示す設備を用い人、出側通電ロール５．１１お
よび処理槽６と出側通電ロール１１との間の鋼板２０（
板幅１３００ｍｍ、通板速度１２０ｍｐｍ）表面にｐＨ
１，０の塩酸水溶液をそれぞれ３．５１／ｍｉｎスプレ
ーしながら、ＺｎＳＯ４・７Ｈ２０：２４０ｇ／ｌ、Ｎ
Ｈ４Ｃｌ：１５ｇ／ｌ 、Ａｌ１ （Ｓ０４）３・１８
Ｈ２０：３０ｇ／ｌよりなる酸性浴を用い、５０ Ａ
／ ｄ ｍ ’の陰極電流密度で電気亜鉛めっきを鋼板
２０に施したところ、スパークの発生はなく表面性状良
好な鋼板が得られた。(Example 1) Using the equipment shown in FIG.
Plate width 1300mm, plate threading speed 120mpm) pH on the surface
ZnSO4・7H20: 240 g/l, N
H4Cl: 15g/l, Al1 (S04) 3.18
H20: 50 A using an acidic bath consisting of 30 g/l
When the steel plate 20 was electrogalvanized at a cathode current density of /d m ', a steel plate with good surface quality was obtained without generation of sparks.
なお、この塩酸水溶液の代わりにｐＨ
１３，１の水酸化ナトリウム水溶液を用いても同様な結
果が得られた。Note that similar results were obtained when an aqueous sodium hydroxide solution with a pH of 13.1 was used instead of this aqueous hydrochloric acid solution.
比較のために、上記スプレーを停止したほかは実施例１
と同様のめっきを施したところ、電流印加後数分して、
後続の通電ロール１１と鋼板２０との間で微小ながらス
パークが発生し、鋼板表面に無数のスパーク跡が残り、
製品の商品価値を著しく減じた。For comparison, Example 1 except that the above spraying was stopped.
When plating was applied in the same manner as above, several minutes after applying current,
A small spark is generated between the subsequent energized roll 11 and the steel plate 20, leaving countless spark marks on the surface of the steel plate.
Significantly reduced the commercial value of the product.
（実施例２）
第１図に示す設備を用い、人、出側通電ロール５．１１
および処理槽６と出側通電ロール１１との間の鋼板２０
（板幅８５０ｍｍ、通板速度３５０ｍｐｍ）表面にｐＨ
２，５の硫酸水溶液をそれぞれ２．５ｕ／ｍｉｎスプレ
ーしながら、ＣｒＯｓ：１８０ｇ／ｌ、Ｎａ２５ｉＦ：
６ｇ／ｌ、Ｈ２ＳＯ４：０．８ｇ／ｌよりなる浴を用い
、７０ Ａ ／ ｄ ｍ ２の陰極電流密度で鋼板をク
ロムめっきした後、同じ浴組成で５ Ａ ／ ｄ ｍ
”の陽極電流密度でこの鋼板を逆電解したところ、通電
ロールにスマットの堆積はなく、表面性状良好な鋼板が
得られた。(Example 2) Using the equipment shown in FIG.
and a steel plate 20 between the treatment tank 6 and the exit energizing roll 11
(Plate width 850mm, plate threading speed 350mpm) pH on the surface
CrOs: 180 g/l, Na25iF: while spraying 2.5 u/min of sulfuric acid aqueous solutions of
After chromium plating the steel plate at a cathodic current density of 70 A/d m2 using a bath consisting of 6 g/l, H2SO4: 0.8 g/l, and 5 A/d m with the same bath composition.
When this steel plate was subjected to reverse electrolysis at an anodic current density of 1, no smut was deposited on the current-carrying roll, and a steel plate with good surface quality was obtained.
なお、この硫酸水溶液の代わりにｐＨ
１２，８の水酸化ナトリウム水溶液を用いても同様な結
果が得られた。Note that similar results were obtained when an aqueous sodium hydroxide solution having a pH of 12.8 was used instead of this aqueous sulfuric acid solution.
比較のために、上記スプレーを停止したほかは実施例２
と同様の処理をしたところ、陽極電流印加後数分して、
通電ロール１１にスマットが堆積し始め、鋼板２０との
間で微小ながらスパークが見られ、得られたティンフリ
ー鋼板表面に無数のスパーク跡が残り、製品の商品価値
を著しく減じた。For comparison, Example 2 except that the above spraying was stopped.
When the same treatment as above was carried out, several minutes after applying the anode current,
Smut began to accumulate on the energizing roll 11, and small sparks were seen between it and the steel plate 20, leaving countless spark marks on the surface of the resulting tin-free steel plate, significantly reducing the commercial value of the product.
（実施例３）
第１図に示す設備を用い、人、出側通電ロール５．１１
および処理槽６と出側通電ロール１１との間の鋼板２０
（板幅１２００ｍｍ、通板速度５０ｍｐｍ）表面にｐＨ
１，１の塩酸水溶液をそれぞれ３℃／ ｍ １ ｎスプ
レーしながら、Ｚｎ−Ｎｉめつき鋼板をＮａ２ＳＯ４：
１５０ｇ／Ａ 、Ｎ０ｓ−： ２０／Ｉｔよりなる浴に
以下の交番電解を施し、黒色鋼板を製造した。(Example 3) Using the equipment shown in FIG.
and a steel plate 20 between the treatment tank 6 and the exit energizing roll 11
(Plate width 1200mm, plate threading speed 50mpm) pH on the surface
A Zn-Ni plated steel plate was coated with Na2SO4:
A black steel plate was produced by performing the following alternating electrolysis in a bath consisting of 150 g/A, NOs-: 20/It.
陽極電流密度 ６０ Ａ ／ ｄ ｍ ２陰
極室流密度 ２４ Ａ ／ ｄ ｍ ２陰Ｖ
ｎ電流密度／陽８ｉ電流密度 ０．４陰極処理時間／
陽極処理時間 ０．２交番周期 ５Ｈ
ｚ
処理時間 ５ｓｅｃ
通電ロールにはスマットの堆積はなく、表面性状良好な
鋼板が得られた。Anode current density 60 A/d m 2 cathode chamber current density 24 A/d m 2 negative V
n current density/positive 8i current density 0.4 cathode treatment time/
Anodizing time 0.2 alternating cycle 5H
z Processing time: 5 sec No smut was deposited on the current-carrying roll, and a steel plate with good surface quality was obtained.
なお、この塩酸水溶液の代わりにｐＨ
１３，８の水酸化ナトリウム水溶液を用いても同様な結
果が得られた。Note that similar results were obtained when an aqueous sodium hydroxide solution having a pH of 13.8 was used instead of this aqueous hydrochloric acid solution.
更に、通電ロール１１にロールポリシャー４を設置して
、ロール面をスコッチブライトで常時研磨するようにし
たところ、スマットの堆積はほとんど皆無になり、長時
間安定して表面処理鋼板を製造することができた。Furthermore, when a roll polisher 4 was installed on the energized roll 11 and the roll surface was constantly polished with Scotchbrite, there was almost no smut accumulation, and surface-treated steel sheets could be produced stably for a long time. did it.
比較のため、上記スプレーおよびロールポリラシャ−４
を停止したほかは実施例３と同様の処理をしたところ、
電流印加後数分して、通電ロール１１にスマットが堆積
し始め、鋼板２０との間で微小ながらスパークが見られ
、黒色鋼板表面に無数のスパーク跡が残り、製品の商品
価値を著しく減じた。For comparison, the above spray and roll polylasha-4
When the same process as in Example 3 was performed except that .
A few minutes after the electric current was applied, smut began to accumulate on the current-carrying roll 11, and small sparks were seen between it and the steel plate 20, leaving countless spark marks on the surface of the black steel plate, significantly reducing the commercial value of the product. .
〈発明の効果〉
本発明は以上説明したように構成されているノテ、従来
は、通電ロールによる金属帯への通電不良か発生し、通
電ロールと金属帯の間でスパークを発生し、通電ロール
、金属帯ともに損傷を受け、金属帯の処理が全くできな
い場合があったが、本発明の実施により、容易に、しか
も完全に通電不良の防止が達成でき、表面性状良好な表
面処理金属帯を安定して生産することを可能にした。<Effects of the Invention> The present invention is configured as described above.In the past, the energizing roll caused a failure in energizing the metal strip, and sparks were generated between the energizing roll and the metal band, causing the energizing roll to fail. However, by implementing the present invention, it is possible to easily and completely prevent conduction failures, and to produce surface-treated metal strips with good surface properties. This enabled stable production.
第１図は、本発明を適用した鋼板の表面処理設備の１例
を示す一部断面側面図である。
第２図は、鋼板上または通電ロール上への酸またはアル
カリ水溶液の散布例を示す正面図である。
第３図はロールポリラシャ−と通電ロールと符号の説明
１・・・鋼板の進行方向、
２・・・鋼板上に散布する酸またはアルカリ水溶液、
３・・・通電ロール上に散布する酸またはアルカリ水溶
液、
４・・・ロールポリラシャ−
５・・・入側通電ロール、
６・・・処理槽、
７・・・ダムロール、
８・・・電極、
９・・・電解質溶液、
１０・・・入側バックアップロール、
１１・・・出側通電ロール、
１２・・・出側バックアップロール、
１３・・・ノズル、
２０・・・鋼板
の関係を示す側面図である。FIG. 1 is a partially sectional side view showing an example of a steel plate surface treatment equipment to which the present invention is applied. FIG. 2 is a front view showing an example of spraying an acid or alkaline aqueous solution onto a steel plate or an energizing roll. Figure 3 shows the roll polyrusher and the current-carrying roll, and the explanation of the symbols 1. The traveling direction of the steel plate. 2. Acid or alkaline aqueous solution sprinkled on the steel sheet. 3. Acid or aqueous solution sprayed on the current-carrying roll. Alkaline aqueous solution, 4... Roll polyrusher, 5... Entrance side energizing roll, 6... Treatment tank, 7... Dumb roll, 8... Electrode, 9... Electrolyte solution, 10... It is a side view showing the relationship among an input side backup roll, 11... Output side energizing roll, 12... Output side backup roll, 13... Nozzle, and 20... Steel plate.
Claims (3)
も１個の通電ロールを有する表面処理設備を用いて金属
帯表面を電解質溶液中で陽極および／または陰極処理す
る際に、前記通電ロール上と前記通電ロールの通板方向
に見て上流側の前記金属帯上の少なくとも一方に酸また
はアルカリ水溶液を散布することを特徴とする金属帯の
表面処理方法。(1) When performing anodic and/or cathodic treatment on the surface of a metal strip in an electrolyte solution using a surface treatment equipment having at least one energizing roll on the inlet and/or outlet side of an electrolytic treatment tank, the energizing roll 1. A method for surface treatment of a metal strip, comprising spraying an acid or alkaline aqueous solution on at least one of the top and the upstream side of the metal strip when viewed in the passing direction of the energizing roll.
も１個の通電ロールを有する表面処理設備を用いて金属
帯表面を電解質溶液中で陽極および／または陰極処理す
る際に、前記通電ロール上と前記通電ロールの通板方向
に見て上流側の前記金属帯上の少なくとも一方に酸また
はアルカリ水溶液を散布するとともに、前記通電ロール
の少なくとも１個の表面をロールポリッシャーで研磨す
ることを特徴とする金属帯の表面処理方法。(2) When performing anodic and/or cathodic treatment on the surface of a metal strip in an electrolyte solution using a surface treatment equipment having at least one energized roll on the inlet and/or outlet side of the electrolytic treatment tank, the energized roll An acid or alkaline aqueous solution is sprayed on at least one of the metal strip on the upper side and the metal band on the upstream side when viewed in the direction of passing of the energizing roll, and at least one surface of the energizing roll is polished with a roll polisher. A method for surface treatment of metal strips.
ルカリ水溶液のｐＨは１２．５〜１３．５である請求項
１または２記載の金属帯の表面処理方法。(3) The method for surface treatment of a metal band according to claim 1 or 2, wherein the acid aqueous solution has a pH of 0.5 to 2, and the alkaline aqueous solution has a pH of 12.5 to 13.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2122159A JP2719030B2 (en) | 1990-05-11 | 1990-05-11 | Metal band surface treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2122159A JP2719030B2 (en) | 1990-05-11 | 1990-05-11 | Metal band surface treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0417695A true JPH0417695A (en) | 1992-01-22 |
| JP2719030B2 JP2719030B2 (en) | 1998-02-25 |
Family
ID=14829057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2122159A Expired - Fee Related JP2719030B2 (en) | 1990-05-11 | 1990-05-11 | Metal band surface treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2719030B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014181382A (en) * | 2013-03-19 | 2014-09-29 | Jfe Steel Corp | Method of surface-treating metallic strip |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59177393A (en) * | 1983-03-25 | 1984-10-08 | Kawasaki Steel Corp | Conditioning device for rolls |
| JPS63195293A (en) * | 1987-02-09 | 1988-08-12 | Nkk Corp | Method for removing metal deposited on conductor roll for horizontal electroplating device |
-
1990
- 1990-05-11 JP JP2122159A patent/JP2719030B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59177393A (en) * | 1983-03-25 | 1984-10-08 | Kawasaki Steel Corp | Conditioning device for rolls |
| JPS63195293A (en) * | 1987-02-09 | 1988-08-12 | Nkk Corp | Method for removing metal deposited on conductor roll for horizontal electroplating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014181382A (en) * | 2013-03-19 | 2014-09-29 | Jfe Steel Corp | Method of surface-treating metallic strip |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2719030B2 (en) | 1998-02-25 |
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