JPS62297474A - Surface treatment of metallic strip - Google Patents
Surface treatment of metallic stripInfo
- Publication number
- JPS62297474A JPS62297474A JP13603186A JP13603186A JPS62297474A JP S62297474 A JPS62297474 A JP S62297474A JP 13603186 A JP13603186 A JP 13603186A JP 13603186 A JP13603186 A JP 13603186A JP S62297474 A JPS62297474 A JP S62297474A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- strip
- chemical conversion
- metal strip
- zone
- 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 19
- 238000011282 treatment Methods 0.000 claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000007654 immersion Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 15
- 238000005406 washing Methods 0.000 description 13
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 11
- 229910019142 PO4 Inorganic materials 0.000 description 10
- 235000021317 phosphate Nutrition 0.000 description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 9
- 239000010452 phosphate Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005238 degreasing Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007739 conversion coating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005111 flow chemistry technique Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000004712 monophosphates Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
６、発明の詳細な説明
〔産業上の利用分野〕
本発明は金属ストリップの表面処理方法、詳しくは金属
ストリップをりん酸塩処理、クロメート処理等の化成処
理ゾーンを含む表面処理装置内を通過させる表面処理方
法に関する。Detailed Description of the Invention 6. Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for surface treatment of metal strips, and more specifically, a method for treating the surface of metal strips, including a chemical conversion treatment zone such as phosphate treatment, chromate treatment, etc. The present invention relates to a surface treatment method that involves passing through a surface treatment device.
従来のりん酸塩処理、クロメート処理等の化成処理ゾー
ンを含む金属ストリップの表面処理装置としては、例え
ば第２図に示されるように、脱脂シー７１、水洗シー７
２、りん酸塩処理ゾーン６、クロメート処理シー７４、
水洗ゾーン５および水洗シー７６が直列に整列され、各
ゾーン１〜６にはそれぞれの処理に適合する処理液を収
容するタンクが下方に設けられるとともに、それぞれの
処理液をスプレーする空間を画成するブースが上方に設
けられ、金稿ストリップ７がほぼ水平に矢巌８の方向に
移送されるようになっていたものがある。金稿ストリッ
プのそれぞれのゾーンにおける処理に際しては、被処理
物である金属ストリップがそれらのゾーンのブースを縦
貫するように通過する間にタンク内の処理液がポンプに
よって揚液され、ブース内に配設されたノズルを通して
金属ストリップにスプレーされたのち該タンクに戻るよ
うになっている。Conventional surface treatment equipment for metal strips including chemical conversion treatment zones such as phosphate treatment and chromate treatment include, for example, a degreasing sheath 71 and a water washing sheath 7, as shown in FIG.
2, phosphate treatment zone 6, chromate treatment zone 74,
The washing zone 5 and the washing sea 76 are arranged in series, and each zone 1 to 6 is provided with a tank below that accommodates a processing liquid suitable for each treatment, and defines a space in which the respective processing liquid is sprayed. In some cases, a booth is provided above, and the manuscript strip 7 is transported almost horizontally in the direction of the arrow 8. When processing metal strips in each zone, the processing liquid in the tank is pumped up by a pump and distributed in the booth while the metal strip to be processed passes vertically through the booths of those zones. The metal strip is sprayed through a nozzle provided and then returned to the tank.
そして上述の装置を用いて、例えば金属ストリップに、
（１）脱脂−水洗一りん酸塩処理−水洗→水洗（１１）
脱脂→水洗−クロメート処理→水洗→水洗の二通りの表
面処理を行なうようにしていた。ところが上述のりん酸
塩処理、クロメート処理等の化成処理ゾーンを含む表面
処理装置を作動させる場合、それらの処理時間を対象と
される金輌ストリップにその都度適合させることができ
ないという問題があった。Then, using the above-mentioned apparatus, for example, a metal strip is subjected to (1) degreasing - water washing monophosphate treatment - water washing → water washing (11)
Two types of surface treatment were performed: degreasing -> water washing - chromate treatment -> water washing -> water washing. However, when operating a surface treatment device that includes a chemical conversion treatment zone such as the above-mentioned phosphate treatment or chromate treatment, there is a problem in that the treatment time cannot be adjusted each time to the target gold strip. .
そこでりん酸塩処理、クロメート処理等の化成処理をす
る場合所望の処理時間にするために、例えば第６図に示
されるように、化成処理ゾーン金縦長型の処理ブース内
でのスプレ一方式による処理ゾーン１０とするとともに
、その処理ブース内を通過する金属ス） ＩＪツブの移
送径路に沿りてそれぞれ開閉パルプを伴った複数のスプ
レーノズルを配設しておき、その開閉バルブの開閉によ
って処理時間のｖ！４整を行なうようにしたことがある
が、金属ストリップを縦型で通常の空気中でスプレー処
理する場合は、上部は通常のスプレーであるので反応速
度は充分であるが、下部は上からの落下流によってノズ
ルからのスプレー液が遮断されるため層流処理となり、
時間−皮膜重量の関係は第４図のＢとなって一次式にて
表わせず、皮膜化成時間を調整するのが困難であるとい
う問題があったＯ
〔問題点を解決するための手段」
本発明は上述の問題を解決するために、金属ストリップ
を９ん酸塩処理、クロメート処理等の化成処理ゾーンを
含む表面処理装置内を通過させる表面処理方法におい【
、化成処理ゾーン會縦長型の処理液槽内への浸漬方式に
よる処理ゾーンとし、処理液槽内を通過する金属ストリ
ップの移送径路に沿って複数のスプレーノズルを配設す
るとともに、前記複数のスプレーノズルに対する処理液
供給パイプとそれぞれのスプレーノズルとの間に開閉パ
ルプを介装しておき、それぞれの前記開閉バルブの開閉
を対象となる金属ストリップに適合するように調節して
処理を行なうようにしたものである。Therefore, when performing chemical conversion treatments such as phosphate treatment and chromate treatment, in order to achieve the desired treatment time, for example, as shown in Figure 6, the chemical conversion treatment zone gold is sprayed in a vertically elongated processing booth. A plurality of spray nozzles with pulp that can be opened and closed are arranged along the transfer route of the IJ tube, and the treatment can be performed by opening and closing the valves. Time v! I have tried spraying metal strips vertically in normal air, and the upper part is a normal spray, so the reaction speed is sufficient, but the lower part is sprayed from above. The spray liquid from the nozzle is blocked by the falling flow, resulting in laminar flow processing.
The relationship between time and film weight becomes B in Figure 4, which cannot be expressed by a linear equation, and there is a problem in that it is difficult to adjust the film formation time. In order to solve the above-mentioned problems, the present invention provides a surface treatment method in which a metal strip is passed through a surface treatment apparatus including a chemical conversion treatment zone such as nonaphosphate treatment and chromate treatment.
The chemical conversion treatment zone is a treatment zone that is immersed in a vertically elongated treatment liquid tank, and a plurality of spray nozzles are arranged along the transfer path of the metal strip passing through the treatment liquid tank, and the plurality of spray An opening/closing pulp is interposed between the treatment liquid supply pipe to the nozzle and each spray nozzle, and the opening/closing of each opening/closing valve is adjusted to suit the metal strip to be treated. This is what I did.
〔作用Ｊ
化成処理反応速度は金鴎ストリップと化成処理液とが接
触することによるｍ解反応と皮膜形成イオンの金属表面
への拡散反応とによって制御されるので、拡散層の厚さ
が小さい根比成膜形成は速く、金偶ストリップと化成処
理液との接触面が乱流となれば層流に比して拡散層は薄
く拡散速度は速くなる。この理由で金属ストリップに対
する化成反応を速やかに行うためにはス） ＩＪツブ表
面を乱流状態にしておく必要がある。このため処理液中
で金属ストリップに直角にノズルを向けて噴流すれば、
拡散層は極めて薄くなり反応速度は上がることになり、
液中による噴流ではストリップ上下の落差による反応速
度の差はない。時間−皮膜重量の関係は第４図のＡとな
って一次式にて表わすことができ、装置設計上有利であ
る。[Effect J: The reaction rate of chemical conversion treatment is controlled by the m-reaction reaction caused by the contact between the metal strip and the chemical conversion treatment solution and the diffusion reaction of film-forming ions to the metal surface. The specific film formation is fast, and if the contact surface between the metal strip and the chemical conversion treatment liquid becomes turbulent, the diffusion layer will be thinner and the diffusion rate will be faster than in laminar flow. For this reason, in order to quickly carry out the chemical conversion reaction on the metal strip, it is necessary to keep the surface of the IJ tube in a turbulent state. Therefore, if you direct the nozzle at right angles to the metal strip in the processing solution,
The diffusion layer becomes extremely thin and the reaction rate increases.
In the case of jet flow in liquid, there is no difference in reaction speed due to the height difference between the top and bottom of the strip. The relationship between time and film weight can be expressed by a linear equation as shown in A in FIG. 4, which is advantageous in terms of equipment design.
以下本発明による金属ストリップの表面処理方法の実施
例について、図面を参照して説明する。Embodiments of the method for surface treatment of metal strips according to the present invention will be described below with reference to the drawings.
従来の表面処理装置については第２図および第６図を参
照して説明したとおりであり℃、本発明方法に用いられ
る表面処理装置についても第２図の脱脂ゾーン１、水洗
シー７２．５．６は同様の構成とすることができる。し
かしながら第２図の従来のりん酸塩処理シー７６および
クロメート処理ゾーン４並びに第３図の化成処理ゾーン
１０は、本発明方法においては第１図の化成処理ゾーン
１１となる。The conventional surface treatment apparatus is as described with reference to FIGS. 2 and 6, and the surface treatment apparatus used in the method of the present invention also has a degreasing zone 1, a water washing zone 72.5. 6 can have a similar configuration. However, the conventional phosphate treatment zone 76 and chromate treatment zone 4 of FIG. 2 and conversion treatment zone 10 of FIG. 3 become conversion treatment zone 11 of FIG. 1 in the method of the present invention.
１２は縦長型の処理液槽であって、上方に送入ロー２１
３および送出ロー２１４、下部に案内ローラ１５が設け
られ、金属ストリップ７が送入ローラ１６、案内ローラ
１５、送出クーラ１４を介して移送され、処理液槽１２
内の処理液に浸漬方式によって処理されるようになって
いる。１６は下方タンクであって、上部が処理液槽１２
の下部と連結されている。12 is a vertically elongated processing liquid tank, and a feed row 21 is placed above it.
3 and a delivery row 214 , and a guide roller 15 is provided at the bottom, and the metal strip 7 is transferred via the delivery roller 16 , the guide roller 15 , and the delivery cooler 14 , and the processing liquid tank 12
The process is carried out by immersion in the processing solution inside. 16 is a lower tank, and the upper part is a processing liquid tank 12
It is connected to the bottom of.
処理液槽１２には処理液スプレー装置が付設されており
、そのスプレー装置はりん酸塩等の化成処理を促進し【
均一な化成被覆を得る目的で、処理液槽内の金属ストリ
ップの移送径路に沿い金属ストＩＪツブ７の両側面に向
かうように上下に間隔をおいて配設されたノズル１７ａ
〜１７ｃおよび１７ｄ〜１７ｆを有し、処理液はポンプ
１８によって揚液され処理液供給パイプ１９を通り、パ
イプ１９とノズル１７ａ〜１７ｆとの間に介装された開
閉バルブの開閉を調節することによって処理液がノズル
１７ａ〜１７ｆから金属ストリップ７に向かってスプレ
ーされるようセなっている。またノズル１７ａ〜１７ｆ
はそれらのノズルに付設された開閉バルブの開閉を調節
することによって選択的に作動させることができ、所望
の化成被覆を得ることが可能となっている。A treatment liquid spray device is attached to the treatment liquid tank 12, and the spray device promotes chemical conversion treatment of phosphates, etc.
For the purpose of obtaining a uniform conversion coating, nozzles 17a are vertically arranged at intervals toward both sides of the metal strip IJ tube 7 along the transfer path of the metal strip in the treatment liquid tank.
17c and 17d to 17f, the processing liquid is pumped by the pump 18 and passes through the processing liquid supply pipe 19, and the opening and closing of the on-off valves interposed between the pipe 19 and the nozzles 17a to 17f is adjusted. The treatment liquid is sprayed toward the metal strip 7 from the nozzles 17a to 17f. Also, nozzles 17a to 17f
can be selectively operated by adjusting the opening and closing of on-off valves attached to these nozzles, making it possible to obtain a desired conversion coating.
りん酸塩処理ゾーン、クロメート処理ゾーン等の化成処
理シー／１１は対象とされる金属ストリップに対して選
択的に用いられるもので、その数および配列もそのスト
リップに適合するように設計されるとともに、処理液槽
１２内の処理液スプレーノズルの配役位置も対象となる
ストリップに適合するように設計される。Chemical conversion treatment zones such as phosphate treatment zones and chromate treatment zones are selectively used for the target metal strip, and their number and arrangement are designed to suit the strip. The position of the treatment liquid spray nozzle in the treatment liquid tank 12 is also designed to match the target strip.
本発明による表面処理方法は、上述のように構成されて
いるので、例えばりん酸塩処理、クロメート処理等の化
成処理ゾーンにおいて個々のスプレーノズルによる処理
皮膜の量を所望の程度にすることが容易となり、処理時
間を対象となる金属ストリップに適合させることができ
る。Since the surface treatment method according to the present invention is configured as described above, it is easy to make the amount of treated film applied by each spray nozzle to a desired level in a chemical conversion treatment zone such as phosphate treatment or chromate treatment. This allows the processing time to be adapted to the metal strip in question.
第１図は本発明による金属スｌ−’Ｊツブの表面処理方
法に用いられる化成処理ゾーンの実施例の線図的側面図
、
第２図は従来の金祝ストリップを化成処理するための表
面処理装置の線図的側面図、
第６図は本発明に先立ち金属ストリップの表面処理の実
験に用いられた化成処理ゾーンの線図的側面図、
第４図は従来方法および本発明方法による時間−皮膜重
量の関係グラフである。
１ ・・・ 脱脂ゾーン
２ ・・・ 水洗ゾーン
３ ・・・ りん酸塩処理ゾーン
４ ・・・ クロメート処理ゾーン
５ ・・・ 水洗ゾーン
６ ・・・ 水洗ゾーン
７ ・・・ 金属ストリップ
１１ ・・・ りん酸塩処理ゾーン
１２ ・・・ 処理ブース
１６ ・・・ 下方タンク
１７８〜１７ｆ ・・・ ノズル
１８ ・・・ ポンプ
２１ ・・・ クロメート処理ゾーン
代理人 弁理士 藤 本 礒
代理人 弁理士 後 藤 武 夫
第１図
第２図FIG. 1 is a diagrammatic side view of an embodiment of a chemical conversion treatment zone used in the method for surface treatment of metal strips according to the present invention; FIG. 2 is a schematic side view of a surface for chemical conversion treatment of a conventional metal strip FIG. 6 is a schematic side view of a chemical conversion treatment zone used in experiments for surface treatment of metal strips prior to the present invention; FIG. - It is a relationship graph of film weight. 1 ... Degreasing zone 2 ... Washing zone 3 ... Phosphating zone 4 ... Chromate processing zone 5 ... Washing zone 6 ... Washing zone 7 ... Metal strip 11 ... Phosphate treatment zone 12... Processing booth 16... Lower tanks 178-17f... Nozzle 18... Pump 21... Chromate treatment zone representative Patent attorney Isao Fujimoto Patent attorney Takeshi Goto Husband 1st figure 2nd figure
Claims (1)
を通過させる表面処理方法において、前記化成処理ゾー
ンを縦長型の処理液槽内への浸漬方式による処理ゾーン
とし、前記処理液槽内を通過する金属ストリップの移送
径路に沿って複数のスプレーノズルを配設するとともに
、前記複数のスプレーノズルに対する処理液供給パイプ
とそれぞれのスプレーノズルとの間に開閉バルブを介装
しておき、それぞれの前記開閉バルブの開閉を対象とな
る金属ストリップに適合するように調節して処理を行な
うようにしたことを特徴とする金属ストリップの表面処
理方法。In a surface treatment method in which a metal strip is passed through a surface treatment apparatus including a chemical conversion treatment zone, the chemical conversion treatment zone is a treatment zone in which the metal strip is immersed in a vertically elongated treatment liquid tank, and the metal strip passes through the treatment liquid tank. A plurality of spray nozzles are arranged along the strip transfer path, and an on-off valve is interposed between a treatment liquid supply pipe for the plurality of spray nozzles and each spray nozzle, and each of the on-off valves 1. A method for surface treatment of a metal strip, characterized in that the opening and closing of the metal strip is adjusted to suit the metal strip to be treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13603186A JPH0759754B2 (en) | 1986-06-13 | 1986-06-13 | Surface treatment method for metal strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13603186A JPH0759754B2 (en) | 1986-06-13 | 1986-06-13 | Surface treatment method for metal strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62297474A true JPS62297474A (en) | 1987-12-24 |
| JPH0759754B2 JPH0759754B2 (en) | 1995-06-28 |
Family
ID=15165562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13603186A Expired - Lifetime JPH0759754B2 (en) | 1986-06-13 | 1986-06-13 | Surface treatment method for metal strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0759754B2 (en) |
-
1986
- 1986-06-13 JP JP13603186A patent/JPH0759754B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0759754B2 (en) | 1995-06-28 |
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