JPH062177A - Method and apparatus for continuously annealing and picking cold-rolled stainless steel sheet - Google Patents
Method and apparatus for continuously annealing and picking cold-rolled stainless steel sheetInfo
- Publication number
- JPH062177A JPH062177A JP16505092A JP16505092A JPH062177A JP H062177 A JPH062177 A JP H062177A JP 16505092 A JP16505092 A JP 16505092A JP 16505092 A JP16505092 A JP 16505092A JP H062177 A JPH062177 A JP H062177A
- Authority
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- Japan
- Prior art keywords
- stainless steel
- cold
- steel sheet
- rolled stainless
- annealing
- 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.)
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷間圧延後のステンレ
ス鋼板の連続焼鈍酸洗方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous annealing pickling method and apparatus for stainless steel sheets after cold rolling.
【０００２】[0002]
【従来の技術】冷間圧延後のステンレス鋼板は、従来Ａ
ＰＬ（ステンレス鋼板連続焼鈍酸洗装置）によって焼鈍
−酸洗処理が施されている。この従来のＡＰＬを使用し
た連続焼鈍酸洗について図２を参照して説明する。図示
しないペイオフリールと入り側ルーパを経由してきた冷
間圧延ステンレス鋼板は、焼鈍炉１０において所定の温
度で焼鈍される。この焼鈍炉は直火型炉であり、酸化性
雰囲気となっている。2. Description of the Related Art Stainless steel sheets after cold rolling are
Annealing-pickling treatment is performed by PL (stainless steel plate continuous annealing pickling device). Continuous annealing pickling using this conventional APL will be described with reference to FIG. The cold-rolled stainless steel plate that has passed through a pay-off reel (not shown) and the entrance looper is annealed at a predetermined temperature in the annealing furnace 10. This annealing furnace is a direct-fired furnace and has an oxidizing atmosphere.
【０００３】一般に焼鈍温度は、オーステナイト系ステ
ンレスの場合は１１００〜１２００℃の範囲、フェライ
ト系ステンレスの場合は８００〜９００℃の範囲であ
る。上記温度範囲で焼鈍された冷間圧延ステンレス鋼板
は、冷却帯１２で冷却された後、中性塩、硫酸、硝弗
酸、硝弗酸等の組み合わせからなる酸を含んだ酸洗設備
１４により酸化スケールが除去され、図示しない出側ル
ーパを経て巻き取られる。Generally, the annealing temperature is in the range of 1100 to 1200 ° C. for austenitic stainless steel and 800 to 900 ° C. for ferritic stainless steel. The cold rolled stainless steel sheet annealed in the above temperature range is cooled in the cooling zone 12 and then subjected to the pickling facility 14 containing an acid composed of a combination of neutral salt, sulfuric acid, nitric hydrofluoric acid, nitric hydrofluoric acid and the like. The oxide scale is removed, and the scale is taken up via a delivery looper (not shown).
【０００４】[0004]
【発明が解決しようとする課題】ところで、ステンレス
の冷延鋼板は優れた表面光沢が要求され、表面の一部に
でも光沢の悪い部分があるときは商品価値が低下するた
め、従来から優れた表面光沢を得るために種々の方法が
試みられている。しかし、従来のＡＰＬを使用した場合
は、冷間圧延時にステンレス鋼板表面に圧延油、水、鉄
粉、スケール等が不均一に付着しているため、焼鈍時に
はこのステンレス鋼板表面が不均一に酸化され、焼鈍後
に酸洗いを行っても模様となって残存し、表面光沢が低
下して製品の欠陥となる。この模様を除去するために酸
洗いの程度を強くすると、粒界が酸化されて粒界模様が
生じる。By the way, the cold rolled steel sheet of stainless steel is required to have an excellent surface gloss, and the commercial value is lowered when a part of the surface has a poor gloss. Various methods have been tried to obtain the surface gloss. However, when conventional APL is used, rolling oil, water, iron powder, scale, etc. are non-uniformly adhered to the surface of the stainless steel plate during cold rolling, so that the surface of the stainless steel plate is unevenly oxidized during annealing. As a result, even if pickling is performed after annealing, it remains as a pattern and the surface gloss decreases, resulting in product defects. If the degree of pickling is increased to remove this pattern, the grain boundaries are oxidized and a grain boundary pattern is produced.
【０００５】また、冷間圧延ステンレス鋼板表面に付着
した鉄粉、スケール等が焼鈍炉のハースロールに付着す
ることがあるため、焼鈍炉内での押し込みキズとなり製
品欠陥となる場合がある。このような問題を解消するた
めに、脱脂装置、洗浄装置を設置し、焼鈍前に冷間圧延
ステンレス鋼板の表面を清浄にする方法が検討されてい
るが、いずれもあまり効果を上げていないのが実情であ
る。Further, since iron powder, scale and the like attached to the surface of the cold-rolled stainless steel plate may attach to the hearth roll of the annealing furnace, they may cause indentation scratches in the annealing furnace, resulting in product defects. In order to solve such a problem, a degreasing device and a cleaning device are installed, and a method of cleaning the surface of the cold-rolled stainless steel sheet before annealing has been studied, but none of them have been very effective. Is the reality.
【０００６】本発明は、上記事情に鑑み、冷間圧延ステ
ンレス鋼板の焼鈍前に表面を十分に清浄にし、焼鈍後の
酸洗いで再び清浄な表面にすることにより、表面光沢の
優れたステンレス冷延鋼板を得る冷間圧延ステンレス鋼
板の連続焼鈍酸洗方法及び装置を提供することを目的と
する。In view of the above circumstances, the present invention provides a stainless cold-rolled stainless steel sheet having excellent surface gloss by thoroughly cleaning the surface of the cold-rolled stainless steel sheet before annealing and then re-cleaning it by pickling after annealing. An object of the present invention is to provide a continuous annealing pickling method and apparatus for cold-rolled stainless steel sheets for obtaining rolled steel sheets.
【０００７】[0007]
【課題を解決するための手段】本発明者は上記目的を達
成するために種々の実験・研究を行った結果、焼鈍前の
冷間圧延ステンレス鋼板を特定成分のアルカリ溶液で洗
浄することにより十分清浄な表面が得られるため、焼鈍
時はこの表面が均一に酸化されて焼鈍後の酸洗いにより
酸化物が均一に除去され、この結果、表面光沢の優れた
ステンレス冷延鋼板が得られることを見い出し、本発明
をなすに至った。Means for Solving the Problems As a result of various experiments and researches for achieving the above-mentioned object, the present inventor has found that it is sufficient to wash a cold-rolled stainless steel sheet before annealing with an alkaline solution of a specific component. Since a clean surface is obtained, this surface is uniformly oxidized during annealing, and the oxide is uniformly removed by pickling after annealing.As a result, a stainless cold-rolled steel sheet with excellent surface gloss can be obtained. They have found the present invention and have completed the present invention.
【０００８】具体的には、本発明の冷間圧延ステンレス
鋼板の連続焼鈍酸洗方法は、冷間圧延ステンレス鋼板を
焼鈍する前に、 （１）重量濃度で０．５％以上５．０％以下のアルカリ
物質及び５０ｐｐｍ以上１．０％以下のキレート剤を含
有する溶液に浸漬して粗洗浄する工程 （２）粗洗浄された冷間圧延ステンレス鋼板に付着して
いる付着物を、重量濃度で０．５％以上５．０％以下の
アルカリ物質及び５０ｐｐｍ以上１．０％以下のキレー
ト剤を含有する溶液で電解除去して仕上洗浄する工程 （３）仕上洗浄された冷間圧延ステンレス鋼板に付着し
ている溶液を除去する工程 （４）溶液が除去された冷間圧延ステンレス鋼板を乾燥
する工程を含むことを特徴とするものである。Specifically, the method for continuous annealing and pickling of cold rolled stainless steel sheet according to the present invention is (1) 0.5% or more and 5.0% by weight concentration before annealing the cold rolled stainless steel sheet. Step of immersing in a solution containing the following alkaline substance and 50 ppm or more and 1.0% or less of a chelating agent for rough cleaning (2) The weight concentration of the adhered matter adhered to the roughly cleaned cold rolled stainless steel plate Of electrolytically removing with a solution containing 0.5% or more and 5.0% or less of an alkaline substance and 50 ppm or more and 1.0% or less of a chelating agent for finish cleaning (3) Finish-cleaned cold-rolled stainless steel sheet And (4) a step of drying the cold rolled stainless steel plate from which the solution has been removed.
【０００９】この方法を行うための本発明の冷間圧延ス
テンレス鋼板の連続焼鈍酸洗装置は、焼鈍炉の冷間圧延
ステンレス鋼板通路上流側に、 （１）冷間圧延ステンレス鋼板を浸漬して洗浄するアル
カリ浸漬槽 （２）この浸漬槽で洗浄された冷間圧延ステンレス鋼板
をさらに洗浄するアルカリ電解槽 （３）このアルカリ電解槽で仕上洗浄された冷間圧延ス
テンレス鋼板に付着しているアルカリ溶液を除去するリ
ンス槽 （４）このリンス槽でアルカリ溶液を除去された冷間圧
延ステンレス鋼板を乾燥する乾燥機を備えたことを特徴
とするものである。The continuous annealing pickling apparatus for cold rolling stainless steel sheet of the present invention for carrying out this method is (1) immersing the cold rolling stainless steel sheet on the upstream side of the cold rolling stainless steel sheet passage of the annealing furnace. Alkali immersion tank for cleaning (2) Alkaline electrolysis tank for further cleaning cold-rolled stainless steel sheet cleaned in this immersion tank (3) Alkali attached to cold-rolled stainless steel sheet finish cleaned in this alkaline electrolysis tank Rinsing tank for removing the solution (4) The rinsing tank is equipped with a dryer for drying the cold-rolled stainless steel plate from which the alkaline solution has been removed in the rinsing tank.
【００１０】また、次に、本発明の基礎となった実験に
ついて、表１及び表２を参照して説明する。表１及び表
２は、アルカリ浸漬槽及びアルカリ電解槽のアルカリ濃
度、キレート剤濃度をさまざまに変更し、乾燥機出側か
ら出たステンレス鋼板表面の調査結果を示したものであ
る。Experiments on which the present invention is based will be described with reference to Tables 1 and 2. Tables 1 and 2 show the results of an examination of the surface of the stainless steel plate that emerged from the dryer outlet side with various changes in the alkali concentration and chelating agent concentration in the alkali dipping tank and the alkaline electrolysis tank.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【表２】 [Table 2]
【００１３】表１及び表２から、圧延油、鉄、スケール
をいずれも効率よく除去でき、鋼板表面を清浄にできる
のは次のような濃度条件になることが判明した。 （１）アルカリ濃度 ０．５％以上５．０％以下（重
量濃度） （２）キレート濃度 ５０ｐｐｍ以上１．０％以下
（重量濃度） なお、特に限定していないが、界面活性剤は本実験では
微量に溶液中に入っていればよく、濃度の上限も特にな
い。From Tables 1 and 2, it was found that the following concentration conditions can efficiently remove all of the rolling oil, iron and scale and clean the surface of the steel sheet. (1) Alkali concentration 0.5% or more and 5.0% or less (weight concentration) (2) Chelate concentration 50 ppm or more and 1.0% or less (weight concentration) Although not particularly limited, the surfactant is used in this experiment. Then, it only needs to be contained in a small amount in the solution, and there is no particular upper limit of the concentration.
【００１４】[0014]
【作用】冷間圧延後のステンレス鋼板は、焼鈍前に、ア
ルカリ浸漬槽に浸漬され粗洗浄される。さらに、その
後、アルカリ電解槽で仕上洗浄され、リンス槽でこの鋼
板に付着したアルカリ溶液が除去され、乾燥機で乾燥さ
れる。その後、焼鈍炉で焼鈍が施され、酸洗いされる。The stainless steel sheet after cold rolling is immersed in an alkali dipping tank and roughly washed before being annealed. Further, after that, finish cleaning is carried out in an alkaline electrolysis tank, the alkaline solution adhering to the steel sheet is removed in a rinse tank, and it is dried in a dryer. Then, it is annealed in an annealing furnace and pickled.
【００１５】上記のアルカリ浸漬槽とアルカリ電解槽に
は、それぞれ重量濃度で０．５％以上５％以下のアルカ
リ物質及び５０ｐｐｍ以上１．０％以下のキレート剤を
含有する溶液が収容されているため、焼鈍前の冷間圧延
ステンレス鋼板の表面は清浄度が高く圧延油、水、鉄
粉、スケール等の付着はない。このため、焼鈍時には均
一に酸化され、焼鈍後の酸洗いにより酸化物が均一に除
去されるため、表面光沢の優れたステンレス冷延鋼板が
得られる。しかも、上述のように焼鈍前の冷間圧延ステ
ンレス鋼板の表面には鉄粉、スケール等の付着がないた
め、焼鈍炉のハースロールにこれらが付着することもな
く、焼鈍炉内で鋼板表面に押し込みキズが生じることも
ない。A solution containing 0.5% or more and 5% or less by weight of an alkaline substance and 50 ppm or more and 1.0% or less of a chelating agent is contained in each of the above alkaline dipping tank and alkaline electrolysis tank. Therefore, the surface of the cold-rolled stainless steel sheet before annealing has a high cleanliness and no rolling oil, water, iron powder, scale, or the like is attached. Therefore, it is uniformly oxidized during annealing and the oxide is uniformly removed by pickling after annealing, so that a stainless cold-rolled steel sheet having excellent surface gloss can be obtained. Moreover, as described above, since there is no adhesion of iron powder, scale, etc. on the surface of the cold-rolled stainless steel sheet before annealing, these do not adhere to the hearth roll of the annealing furnace, and the surface of the steel sheet does not adhere to the annealing furnace. It does not cause indentation.
【００１６】[0016]
【実施例】次に本発明の一実施例を図面を参照して説明
する。図１は、本実施例の冷間圧延ステンレス鋼板の連
続焼鈍酸洗装置２０の概略構成を示す概略構成図であ
る。図中の矢印Ａは冷間圧延ステンレス鋼板が送られる
方向を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a schematic configuration of a continuous annealing pickling apparatus 20 for cold-rolled stainless steel sheets according to this embodiment. The arrow A in the figure indicates the direction in which the cold rolled stainless steel sheet is fed.
【００１７】ペイオフリール（図示せず）を出た冷間圧
延ステンレス鋼板２２は、まずアルカリ溶液２４が収容
されたアルカリ浸漬槽２６に浸漬され、その表面に付着
している圧延油、水、鉄粉、スケール等が大まかに除去
される。この浸漬槽２６から出た冷間圧延ステンレス鋼
板は、ナイロン製の柔らかいブラシを有した装置２８に
より、その表面の付着物が強制的に除去される。次に、
アルカリ溶液３０が収容されたアルカリ電解槽３２に浸
漬される。このアルカリ電解槽３２では、浸漬槽２６で
除去されずに鋼板表面に残っていた付着物が、電気分解
により発生したＨ2 、Ｏ2 ガスの撹拌力によりこの表面
から除去される。このアルカリ電解槽３２から出た冷間
圧延ステンレス鋼板は、ナイロン製の柔らかいブラシを
有した装置３４により、その表面に付着物があるときは
強制的に除去される。The cold-rolled stainless steel plate 22 coming out of the pay-off reel (not shown) is first dipped in an alkaline dipping tank 26 containing an alkaline solution 24, and rolling oil, water, iron adhered to the surface thereof. The powder, scale, etc. are roughly removed. The cold-rolled stainless steel plate discharged from the dipping tank 26 is forcibly removed of the deposits on its surface by the device 28 having a soft nylon brush. next,
It is immersed in an alkaline electrolysis tank 32 containing an alkaline solution 30. In this alkaline electrolysis tank 32, the deposits left on the surface of the steel sheet without being removed by the immersion tank 26 are removed from this surface by the stirring force of H 2 and O 2 gas generated by electrolysis. The cold-rolled stainless steel plate discharged from the alkaline electrolysis tank 32 is forcibly removed by the device 34 having a soft nylon brush when there is an adhered substance on its surface.
【００１８】この２つの槽２６、３２で付着物を除去さ
れた鋼板は、リンス槽３６内を通過する。このリンス槽
３６内では、鋼板に付着しているアルカリ溶液の除去が
行われる。その後、鋼板はドライヤ３８で乾燥され、焼
鈍炉（図示せず）に送られ所定の温度で焼鈍が施され
る。焼鈍が終了した後には酸洗いが施され、焼鈍中に生
じたスケール等が除去される。The steel plate from which the deposits have been removed in the two tanks 26 and 32 passes through the rinse tank 36. In the rinse tank 36, the alkaline solution adhering to the steel plate is removed. After that, the steel sheet is dried by a dryer 38, sent to an annealing furnace (not shown), and annealed at a predetermined temperature. After the annealing is finished, pickling is performed to remove scales and the like generated during the annealing.
【００１９】次に、連続焼鈍酸洗装置を使用して、下記
の（１）〜（５）の条件で冷間圧延ステンレス鋼板を連
続焼鈍酸洗した例を示す（濃度は重量％で示す）。 （１）アルカリ浸漬槽 アルカリ濃度 ３．０％ キレート濃度 ２００ｐｐｍ 温度 ８０℃ （２）アルカリ電解槽 アルカリ濃度 １．５％ キレート濃度 ２００ｐｐｍ 温度 ８０℃ （３）リンス槽 温度 ８５℃ （４）ドライヤー 温風温度 ９０℃ （５）ライン速度 ８０ｍｐｍ 上記の条件で連続焼鈍酸洗した結果、水ぬれ性１００％
良好な鋼板表面が得られた。しかも、鋼板表面のミクロ
分析の結果、鉄粉、スケール、油成分の検出は全く認め
られなかった。Next, an example of continuously annealing and pickling a cold-rolled stainless steel sheet under the following conditions (1) to (5) using a continuous annealing and pickling device (concentration is shown by weight%) is shown. . (1) Alkali immersion tank: Alkali concentration 3.0% Chelate concentration: 200ppm Temperature: 80 ° C (2) Alkaline electrolysis tank: Alkali concentration: 1.5% Chelate concentration: 200ppm Temperature: 80 ° C (3) Rinse tank temperature: 85 ° C (4) Dryer hot air Temperature 90 ° C (5) Line speed 80 mpm As a result of continuous annealing pickling under the above conditions, 100% water wettability
A good steel plate surface was obtained. Moreover, as a result of microanalysis of the surface of the steel sheet, no iron powder, scale, or oil component was detected.
【００２０】また、焼鈍後、酸洗後の鋼板表面には、付
着物に起因する模様は全く見られず、表面光沢の優れた
ステンレス冷延鋼板が得られた。なお、上記実施例で
は、アルカリ液としてＮａＯＨ水溶液、キレートとして
エチレンジアミル四酢酸（ＥＤＴＡ）を用いた。On the surface of the steel sheet after annealing and pickling, no pattern due to deposits was observed, and a stainless cold-rolled steel sheet having excellent surface gloss was obtained. In addition, in the said Example, the NaOH aqueous solution was used as an alkaline liquid, and ethylene diamyl tetraacetic acid (EDTA) was used as a chelate.
【００２１】[0021]
【発明の効果】以上説明したように本発明によれば、冷
間圧延ステンレス鋼板の焼鈍前にこの表面を清浄にする
ため、付着物起因による焼鈍、酸洗後の異常酸化、模様
が皆無になる。また、付着物起因による焼鈍炉ハースロ
ール疵が皆無になる。しかも、アルカリ濃度、キレート
濃度を管理することにより、アルカリ物質やキレート剤
の原単位が改善される。As described above, according to the present invention, since the surface of the cold-rolled stainless steel sheet is cleaned before being annealed, annealing due to deposits, abnormal oxidation after pickling, and no pattern are eliminated. Become. In addition, the annealing hearth roll defects due to the deposits are eliminated. Moreover, by controlling the alkali concentration and the chelate concentration, the basic unit of the alkaline substance and the chelating agent is improved.
【図１】本発明の一実施例の冷間圧延ステンレス鋼板の
連続焼鈍酸洗装置の概略構成を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a schematic configuration of a continuous annealing pickling apparatus for cold rolled stainless steel sheets according to an embodiment of the present invention.
【図２】従来のステンレス鋼板連続焼鈍酸洗装置を示す
概略構成図である。FIG. 2 is a schematic configuration diagram showing a conventional stainless steel plate continuous annealing pickling apparatus.
２０ 連続焼鈍酸洗装置 ２２ 冷間圧延ステンレス鋼板 ２４ アルカリ溶液 ２６ アルカリ浸漬槽 ２８，３４ ナイロン製の柔らかいブラシを有した装置 ３０ アルカリ溶液 ３２ アルカリ電解槽 ３６ リンス槽 ３８ ドライヤ 20 Continuous Annealing and Pickling Device 22 Cold Rolled Stainless Steel Plate 24 Alkaline Solution 26 Alkali Immersion Tank 28,34 Equipment with Soft Nylon Brush 30 Alkaline Solution 32 Alkaline Electrolyzer 36 Rinse Tank 38 Dryer
フロントページの続き (72)発明者 佐藤 邦昭 千葉市中央区川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (72)発明者 磯部 敏樹 千葉市中央区川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (72)発明者 園山 光吉 千葉市中央区川崎町１番地 川崎製鉄株式 会社千葉製鉄所内Front page continuation (72) Inventor Kuniaki Sato 1 Kawasaki-cho, Chuo-ku, Chiba City Chiba Works, Kawasaki Steel Co., Ltd. ) Inventor Mitsuyoshi Sonoyama 1 Kawasaki-cho, Chuo-ku, Chiba City Chiba Works, Kawasaki Steel Co., Ltd.
Claims (2)
方法において、 該冷間圧延ステンレス鋼板を焼鈍する前に、 （１）重量濃度で０．５％以上５．０％以下のアルカリ
物質及び５０ｐｐｍ以上１．０％以下のキレート剤を含
有する溶液に浸漬して粗洗浄する工程と、 （２）前記粗洗浄された冷間圧延ステンレス鋼板に付着
している付着物を、重量濃度で０．５％以上５．０％以
下のアルカリ物質及び５０ｐｐｍ以上１．０％以下のキ
レート剤を含有する溶液で電解除去して仕上洗浄する工
程と、 （３）前記仕上洗浄された冷間圧延ステンレス鋼板に付
着している溶液を除去する工程と、 （４）前記溶液が除去された冷間圧延ステンレス鋼板を
乾燥する工程とを含むことを特徴とする冷間圧延ステン
レス鋼板の連続焼鈍酸洗方法。1. A continuous annealing pickling method for a cold rolled stainless steel sheet, comprising: (1) 0.5% to 5.0% by weight of an alkaline substance before annealing the cold rolled stainless steel sheet; A step of immersing in a solution containing a chelating agent in an amount of 50 ppm or more and 1.0% or less to perform rough cleaning; and (2) the deposit adhered to the rough-cleaned cold-rolled stainless steel sheet is 0 in weight concentration. A step of electrolytically removing and finishing cleaning with a solution containing an alkaline substance of 5% or more and 5.0% or less and a chelating agent of 50 ppm or more and 1.0% or less, and (3) the cold-cleaned stainless steel subjected to the finishing cleaning. Continuous annealing pickling method for cold-rolled stainless steel sheet, comprising: a step of removing a solution adhering to the steel sheet; and (4) a step of drying the cold-rolled stainless steel sheet from which the solution has been removed. .
の連続焼鈍酸洗装置において、 前記焼鈍炉の前記冷間圧延ステンレス鋼板通路上流側
に、 （１）前記冷間圧延ステンレス鋼板を洗浄するアルカリ
浸漬槽と、 （２）該浸漬槽で洗浄された冷間圧延ステンレス鋼板を
さらに洗浄するアルカリ電解槽と、 （３）該アルカリ電解槽で洗浄された冷間圧延ステンレ
ス鋼板に付着しているアルカリ溶液を除去するリンス槽
と、 （４）該リンス槽でアルカリ溶液を除去された冷間圧延
ステンレス鋼板を乾燥する乾燥機とを備えたことを特徴
とする冷間圧延ステンレス鋼板の連続焼鈍酸洗装置。2. A continuous annealing pickling apparatus for cold-rolled stainless steel sheet, comprising an annealing furnace, wherein (1) the cold-rolled stainless steel sheet is washed upstream of the cold-rolled stainless steel sheet passage of the annealing furnace. An alkaline dipping bath, (2) an alkaline electrolysis bath for further cleaning the cold-rolled stainless steel sheet washed in the dipping bath, and (3) adhered to the cold-rolled stainless steel sheet washed in the alkali electrolysis bath A continuous annealing acid for a cold-rolled stainless steel sheet, comprising: a rinse tank for removing the alkaline solution; and (4) a dryer for drying the cold-rolled stainless steel sheet from which the alkaline solution has been removed. Washing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16505092A JPH062177A (en) | 1992-06-23 | 1992-06-23 | Method and apparatus for continuously annealing and picking cold-rolled stainless steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16505092A JPH062177A (en) | 1992-06-23 | 1992-06-23 | Method and apparatus for continuously annealing and picking cold-rolled stainless steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH062177A true JPH062177A (en) | 1994-01-11 |
Family
ID=15804885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16505092A Pending JPH062177A (en) | 1992-06-23 | 1992-06-23 | Method and apparatus for continuously annealing and picking cold-rolled stainless steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062177A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067498A (en) * | 1993-03-30 | 1994-01-18 | L I C:Kk | Rotary barrel type game machine |
| US7226358B2 (en) | 1994-09-23 | 2007-06-05 | Igt | Method, apparatus and system for gaming using a rotatable payout indicator |
| US20100072076A1 (en) * | 2008-09-25 | 2010-03-25 | Shenzhen Futaihong Precision Industry Co., Ltd. | Surface treatment method for housings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075529A (en) * | 1973-11-08 | 1975-06-20 | ||
| JPS55141577A (en) * | 1979-04-21 | 1980-11-05 | Asahi Kagaku Kogyo Kk | Detergent for steel material |
-
1992
- 1992-06-23 JP JP16505092A patent/JPH062177A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075529A (en) * | 1973-11-08 | 1975-06-20 | ||
| JPS55141577A (en) * | 1979-04-21 | 1980-11-05 | Asahi Kagaku Kogyo Kk | Detergent for steel material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067498A (en) * | 1993-03-30 | 1994-01-18 | L I C:Kk | Rotary barrel type game machine |
| US7226358B2 (en) | 1994-09-23 | 2007-06-05 | Igt | Method, apparatus and system for gaming using a rotatable payout indicator |
| US20100072076A1 (en) * | 2008-09-25 | 2010-03-25 | Shenzhen Futaihong Precision Industry Co., Ltd. | Surface treatment method for housings |
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