JP3389396B2 - Metal strip cleaning method - Google Patents
Metal strip cleaning methodInfo
- Publication number
- JP3389396B2 JP3389396B2 JP00824796A JP824796A JP3389396B2 JP 3389396 B2 JP3389396 B2 JP 3389396B2 JP 00824796 A JP00824796 A JP 00824796A JP 824796 A JP824796 A JP 824796A JP 3389396 B2 JP3389396 B2 JP 3389396B2
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- metal strip
- cleaning liquid
- pressure
- 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.)
- Expired - Fee Related
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明方法は、金属帯の洗浄
方法に関するものである。TECHNICAL FIELD The present invention relates to a method for cleaning a metal strip.
【０００２】[0002]
【従来の技術】周知のごとく、圧延後の金属帯洗浄方法
としては、化学洗浄液中へ連続的に金属帯を導き洗浄し
た後、更に水洗液（洗浄液）中へ導き、金属帯表面に付
着している化学洗浄液を水洗除去することが一般に行わ
れている。2. Description of the Related Art As is well known, as a method for cleaning a metal strip after rolling, a metal strip is continuously introduced into a chemical cleaning solution for cleaning and then introduced into a washing solution (cleaning solution) to adhere to the surface of the metal strip. It is common practice to remove the existing chemical cleaning solution with water.
【０００３】[0003]
【発明が解決しようとする課題】上記のごとき金属帯の
洗浄方法においては、確実に洗浄することが困難であ
り、ブラシロール等による機械的洗浄を組み合わせて洗
浄することもあるが、これも十分満足する洗浄効果が得
られない。従って、金属帯表面に光沢むら等が発生し、
品質を低下させる等の課題がある。本発明方法は、この
ような課題を有利に解決するためなされたものであり、
洗浄液中の金属帯表面へ洗浄液を噴射して、確実に洗浄
する方法を提供することを目的とするものである。In the method of cleaning a metal strip as described above, it is difficult to surely clean it, and mechanical cleaning with a brush roll or the like may be combined, but this is also sufficient. Satisfactory cleaning effect cannot be obtained. Therefore, uneven gloss etc. occurs on the surface of the metal strip,
There are problems such as deterioration of quality. The method of the present invention has been made in order to advantageously solve such a problem,
It is an object of the present invention to provide a method for reliably cleaning by spraying a cleaning liquid onto the surface of a metal strip in the cleaning liquid.
【０００４】[0004]
【課題を解決するための手段】本発明方法の特徴とする
ところは、金属帯を洗浄タンク内の洗浄液中へ導き、金
属帯表面を洗浄するに際し、洗浄液中の金属帯へ洗浄タ
ンク内の洗浄液圧より高圧の洗浄液を噴射することによ
り金属帯に１〜１０ＭＰａの衝突圧で衝突させるととも
に、高圧の洗浄液を気化させて気泡を発生させ、この気
泡の圧壊により放出される圧力エネルギーを利用して洗
浄作用を高めることを特徴とする金属帯の洗浄方法であ
る。The method of the present invention is characterized in that the metal strip is introduced into the cleaning liquid in the cleaning tank and the surface of the metal strip is cleaned. By injecting a cleaning liquid having a pressure higher than the pressure, the metal strip is collided with a collision pressure of 1 to 10 MPa.
In addition, it is a method of cleaning a metal band, characterized in that a high-pressure cleaning liquid is vaporized to generate bubbles, and the pressure energy released by the collapse of the bubbles is utilized to enhance the cleaning action.
【０００５】[0005]
【発明の実施の形態】本発明方法の一例を図面によって
説明する。図１において、洗浄タンク１内に洗浄液２を
満たして、この洗浄液２中へ金属帯３を金属帯ガイドロ
ール４、４ａを介して導き、金属帯を洗浄するに際し、
図示のごとくノズル５、５ａから洗浄液２を金属帯３の
表面（表裏面）へ噴射する。即ち、洗浄タンク１内の洗
浄液２を補助タンク６内へ導き、ポンプ７、７ａを介し
てノズル５、５ａから洗浄液２を金属帯３の表面（表裏
面）へ噴射するものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the method of the present invention will be described with reference to the drawings. In FIG. 1, the cleaning tank 2 is filled with the cleaning liquid 2, and the metal strip 3 is guided into the cleaning liquid 2 through the metal strip guide rolls 4 and 4a to clean the metal strip.
As shown in the figure, the cleaning liquid 2 is sprayed from the nozzles 5 and 5a onto the front surface (front and back surfaces) of the metal strip 3. That is, the cleaning liquid 2 in the cleaning tank 1 is introduced into the auxiliary tank 6, and the cleaning liquid 2 is sprayed from the nozzles 5, 5a to the front surface (front and back surfaces) of the metal strip 3 via the pumps 7, 7a.
【０００６】洗浄液２の金属帯３への噴射圧としては、
洗浄タンク１内の洗浄液２圧より高圧で噴射するもので
ある。このように洗浄液２を高圧で金属帯３へ噴射する
ことにより、ノズル５、５ａから噴射した高圧洗浄液
は、洗浄タンク１内の低圧洗浄液２に接触すると同時
に、蒸発（気化）して気泡が発生する。この気泡が金属
帯３へ衝突することにより、気泡内圧が上昇して圧壊
し、気泡がもっている表面エネルギー（界面エネルギ
ー）が一気に圧力エネルギーとして放出され、衝撃波と
なって金属帯３へ伝播し、洗浄作用を高めることができ
るものと考えられる。つまり、超音波洗浄と同様な洗浄
効果が得られるものである。As the injection pressure of the cleaning liquid 2 to the metal strip 3,
The injection is performed at a pressure higher than the pressure of the cleaning liquid in the cleaning tank 1. By thus injecting the cleaning liquid 2 onto the metal strip 3 at high pressure, the high-pressure cleaning liquid sprayed from the nozzles 5 and 5a contacts the low-pressure cleaning liquid 2 in the cleaning tank 1 and at the same time evaporates (vaporizes) to generate bubbles. To do. When the bubbles collide with the metal band 3, the bubble internal pressure rises and collapses, and the surface energy (interfacial energy) of the bubble is released as pressure energy at once, and the shock wave propagates to the metal band 3. It is considered that the cleaning action can be enhanced. That is, the same cleaning effect as ultrasonic cleaning can be obtained.
【０００７】しかして、金属帯３への洗浄液噴射圧とし
ては、例えば冷間圧延後の鋼帯表面の圧延油を脱脂する
ためのアルカリ水溶液等による化学洗浄、このような化
学洗浄後の洗浄液を除去するための水洗、熱間圧延後の
鋼帯酸洗、このような酸洗後の洗浄液を除去するための
水洗等においては、１〜１０ＭＰａ（鋼帯衝突圧）と洗
浄タンク１内洗浄液２圧より高圧噴射で確実に洗浄除去
することができる。このように確実に洗浄することがで
きるので、金属帯３の通板速度をより高速にしても確実
に洗浄することがでるので、金属帯３の品質を向上する
とともに、生産性を高めることができるものである。However, as the cleaning liquid injection pressure onto the metal strip 3, for example, chemical cleaning with an alkaline aqueous solution or the like for degreasing rolling oil on the surface of the steel strip after cold rolling, or cleaning liquid after such chemical cleaning is used. In washing with water for removing, steel strip pickling after hot rolling, and washing with water for removing the washing liquid after such pickling, 1-10 MPa (steel strip collision pressure) and the washing liquid 2 in the washing tank 1 It can be reliably washed and removed by high-pressure jetting rather than pressure. Since the metal strip 3 can be surely washed in this manner, the metal strip 3 can be surely washed even if the sheet passing speed of the metal strip 3 is higher. Therefore, the quality of the metal strip 3 can be improved and the productivity can be improved. It is possible.
【０００８】洗浄タンク１内の洗浄液２圧より高圧で噴
射する洗浄液２は、前記のごとく洗浄タンク１内の洗浄
液２を循環して鋼帯へ噴射する他、例えば洗浄液の補給
を兼ねて別系統から新たな洗浄液２をノズル５、５ａか
ら噴射することも有効である。このように、洗浄する金
属帯としては、例えば鋼帯、アルミニウム帯等に有効に
適用することができる。The cleaning liquid 2 injected at a pressure higher than the pressure of the cleaning liquid 2 in the cleaning tank 1 circulates the cleaning liquid 2 in the cleaning tank 1 and injects it into the steel strip as described above. Therefore, it is also effective to spray a new cleaning liquid 2 from the nozzles 5 and 5a. Thus, the metal strip to be cleaned can be effectively applied to, for example, a steel strip or an aluminum strip.
【０００９】[0009]
【実施例】次に、本発明方法の実施例を比較例とともに
挙げる。表１に示すように比較例は、本発明方法による
洗浄液の高圧噴射を行わない従来の洗浄方法による結果
であり、実施例に比べ鋼帯洗浄歩留り落が数倍から数十
倍も多い結果になった。EXAMPLES Next, examples of the method of the present invention will be given together with comparative examples. As shown in Table 1, the comparative example is a result of the conventional cleaning method in which the cleaning liquid according to the present invention is not injected at a high pressure, and the steel strip cleaning yield is several times to several tens of times that of the example. There were many results.
【００１０】[0010]
【表１】 [Table 1]
【００１１】注１：鋼帯の洗浄は、冷間圧延後の鋼帯
（板厚０．６ｍｍ、板幅８００ｍｍ）を通常のアルカリ
水溶液（ＮａＯＨ：１０％、液温６０℃）により脱脂
後、鋼帯に付着しているアルカリ水溶液を除去するため
の水洗を図１のごとく実施した。
注２：高圧洗浄液噴射角度は、鋼帯通板方向に対向して
鋼帯表裏面から噴射した。
注３：鋼帯洗浄歩留り落は、注１のごとく水洗後の鋼帯
を連続熱処理設備（焼鈍設備）へ導き、通常条件で加
熱、均熱、冷却の処理時にアルカリ水溶液の残留によに
よって発生する「光沢むら」による歩留り落率である。Note 1: The steel strip is washed by degreasing the cold-rolled steel strip (plate thickness 0.6 mm, plate width 800 mm) with a normal alkaline aqueous solution (NaOH: 10%, liquid temperature 60 ° C.), Washing with water for removing the alkaline aqueous solution adhering to the steel strip was carried out as shown in FIG. Note 2: The high-pressure cleaning liquid was sprayed from the front and back sides of the steel strip so as to face the steel strip passing direction. Note 3: Steel strip cleaning yield is caused by residual alkaline aqueous solution during heating, soaking, and cooling under normal conditions by guiding the steel strip after washing to steel to continuous heat treatment equipment (annealing equipment) as in Note 1. This is the yield loss rate due to uneven gloss.
【００１２】[0012]
【発明の効果】本発明方法によれば、確実に金属帯の洗
浄ができ表面むら等の汚れによる歩留り落を大幅に改善
するとともに、品質を高めることができる。また、鋼帯
の通板速度を向上することができ生産性を高めることが
できる等の効果が得られる。According to the method of the present invention, the metal strip can be surely cleaned, the yield due to dirt such as surface unevenness can be greatly improved, and the quality can be improved. Further, it is possible to obtain an effect such that the strip running speed of the steel strip can be improved and the productivity can be enhanced.
【図１】本発明方法の一例を示す側面図である。FIG. 1 is a side view showing an example of the method of the present invention.
１ 洗浄タンク ２ 洗浄液 ３ 金属帯 ４ 金属帯ガイドロール ４ａ 金属帯ガイドロール ５ ノズル ５ａ ノズル ６ 補助タンク ７ ホンプ ７ａ ホンプ 1 washing tank 2 cleaning liquid 3 metal bands 4 Metal strip guide rolls 4a Metal strip guide roll 5 nozzles 5a nozzle 6 auxiliary tanks 7 hoop 7a Homp
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭48−17432（ＪＰ，Ａ) 特開 平７−241494（ＪＰ，Ａ) 特開 平５−179471（ＪＰ，Ａ) 特開 平６−330360（ＪＰ，Ａ) 実開 昭59−76564（ＪＰ，Ｕ) 実開 平５−89453（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) C23G 3/02 B08B 3/04 ─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-48-17432 (JP, A) JP-A-7-241494 (JP, A) JP-A-5-179471 (JP, A) JP-A-6- 330360 (JP, A) Actual development Sho 59-76564 (JP, U) Actual development Hei 5-89453 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) C23G 3/02 B08B 3 / 04
Claims (2)
き、金属帯表面を洗浄するに際し、洗浄液中の金属帯へ
洗浄タンク内の洗浄液圧より高圧の洗浄液を噴射するこ
とにより金属帯に１〜１０ＭＰａの衝突圧で衝突させる
とともに、高圧の洗浄液を気化させて気泡を発生させ、
この気泡の圧壊により放出される圧力エネルギーを利用
して洗浄作用を高めることを特徴とする金属帯の洗浄方
法。1. When a metal strip is introduced into a cleaning liquid in a cleaning tank and the surface of the metal strip is cleaned, a cleaning liquid having a pressure higher than the cleaning liquid pressure in the cleaning tank is sprayed onto the metal strip in the cleaning liquid to remove the metal strip into the metal strip. Collide with a collision pressure of 10 MPa
At the same time, the high-pressure cleaning liquid is vaporized to generate bubbles,
A method for cleaning a metal band, characterized in that the cleaning action is enhanced by utilizing the pressure energy released by the collapse of the bubbles.
へ高圧洗浄液を噴射することを特徴とする請求項１に記
載の金属帯の洗浄方法。2. The method of cleaning a metal strip according to claim 1, wherein the cleaning liquid in the cleaning tank is circulated to inject the high-pressure cleaning liquid onto the metal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00824796A JP3389396B2 (en) | 1996-01-22 | 1996-01-22 | Metal strip cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00824796A JP3389396B2 (en) | 1996-01-22 | 1996-01-22 | Metal strip cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09195075A JPH09195075A (en) | 1997-07-29 |
| JP3389396B2 true JP3389396B2 (en) | 2003-03-24 |
Family
ID=11687822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00824796A Expired - Fee Related JP3389396B2 (en) | 1996-01-22 | 1996-01-22 | Metal strip cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3389396B2 (en) |
-
1996
- 1996-01-22 JP JP00824796A patent/JP3389396B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09195075A (en) | 1997-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101249167B1 (en) | Pickling method for steel plates, and pickling apparatus | |
| JP3389396B2 (en) | Metal strip cleaning method | |
| CN109321928A (en) | A kind of super austenitic stainless steel volume continuous acid-washing method | |
| JP2010100900A (en) | Method and device for cleaning steel sheet | |
| JP3551809B2 (en) | How to descaling stainless steel sheet | |
| JP2004306077A (en) | Manufacturing method of stainless steel strip | |
| JP2701636B2 (en) | Descaling method of hot rolled steel strip | |
| JPH05125573A (en) | Continuous pickling and rinsing method and device for steel sheet | |
| JP2689845B2 (en) | Descaling method for hot rolled steel | |
| JPS6261364B2 (en) | ||
| CA1090684A (en) | Method and an apparatus for cleaning a cold rolled steel sheet | |
| JP2892595B2 (en) | Method and apparatus for cleaning metal strip after cold rolling | |
| JP2003181522A (en) | Method and device for manufacturing steel plate having excellent surface property | |
| JP3706483B2 (en) | Continuous annealing equipment for steel strip | |
| JPH10265986A (en) | Method for continuously annealing and pickling cold rolled stainless steel strip and device therefor | |
| JP3411799B2 (en) | Metal strip cleaning method after cold rolling | |
| JPS5940525B2 (en) | Temper rolling method | |
| GB1574323A (en) | Methods of cleaning metal sheets | |
| JPH09271832A (en) | Descaling method of hot rolled ferritic stainless steel plate | |
| JPS58128218A (en) | Device for descaling hot rolled band steel | |
| JPS58128217A (en) | Device for descaling hot rolled band steel | |
| KR100394947B1 (en) | Cooling and scale peeling method of stainless annealing plate | |
| JP3037130B2 (en) | Method and apparatus for pickling stainless steel | |
| JP2991646B2 (en) | Steel strip cooling device for descaling stainless steel strip and descaling pretreatment method for stainless steel strip | |
| CN112680738A (en) | Surface treatment method for aluminum alloy plate strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20021210 |
|
| LAPS | Cancellation because of no payment of annual fees |