JPH04116186A - Apparatus for pickling band steel - Google Patents
Apparatus for pickling band steelInfo
- Publication number
- JPH04116186A JPH04116186A JP23257190A JP23257190A JPH04116186A JP H04116186 A JPH04116186 A JP H04116186A JP 23257190 A JP23257190 A JP 23257190A JP 23257190 A JP23257190 A JP 23257190A JP H04116186 A JPH04116186 A JP H04116186A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- pickling
- movable
- steel
- steel 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.)
- Pending
Links
- 238000005554 pickling Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 239000002253 acid Substances 0.000 abstract description 14
- 238000007654 immersion Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、帯鋼を製造する場合に使用するのに適した酸
洗装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a pickling apparatus suitable for use in producing steel strips.
帯鋼の製造に際しては、熱処理後および熱間圧延後、形
成されたスケールの除去のために酸洗工程を設けている
。第2図は酸洗か行われる処理工程の一例を示すもので
、熱処理後、ンヨッ]・プラス!・工程21て処理され
た帯鋼Aは、第1の酸洗槽22に搬送され、第1回目の
酸洗処理が行われる。次いで、ブラシ洗浄工程23を経
て、第2の酸洗槽24に搬送され、第2回目の酸洗処理
か行われる。帯鋼は次いで水洗工程25で併行する酸溶
液を水先した後、乾燥工程26において乾燥され、さら
に検査工程27において、=J法、外観、超音波による
傷の有無の検査が行われ、ロール状に巻き取られる。When producing steel strips, a pickling process is provided after heat treatment and hot rolling to remove formed scale. Figure 2 shows an example of the treatment process in which pickling is performed. - The steel strip A treated in step 21 is transported to the first pickling tank 22, where it is subjected to a first pickling treatment. Next, after passing through a brush cleaning step 23, it is transported to a second pickling tank 24, where it is subjected to a second pickling process. The steel strip is then subjected to a washing process 25 in which an acid solution is applied in parallel, and then dried in a drying process 26. In an inspection process 27, the steel strip is inspected using the =J method, appearance, and ultrasonic waves for the presence or absence of flaws. is wound up.
従来、上記酸洗処理において使用されている酸洗装置は
、第3図に示すごとく、酸洗槽1の両端近傍に第1のロ
ール2及び第2のロール3を配設した構造を有するもの
であった。この酸洗装置では、帯j14Aは搬送ロール
5によって矢印方法に搬送されて、酸溶液Bか満たされ
た酸洗槽1に導入され、第1のロール2及び第20−ル
3との間で浸漬処理が行われた後、搬送ロール6によっ
て次の処理工程に搬送される。Conventionally, the pickling equipment used in the above-mentioned pickling treatment has a structure in which a first roll 2 and a second roll 3 are arranged near both ends of a pickling tank 1, as shown in FIG. Met. In this pickling device, the band j14A is conveyed in the direction of the arrow by the conveyor roll 5, introduced into the pickling tank 1 filled with acid solution B, and transferred between the first roll 2 and the 20th-rule 3. After the immersion treatment is performed, the material is transported to the next processing step by transport rolls 6.
ところが、上記従来の酸洗装置を用いた場合、帯鋼の上
下面の酸洗むらか発生したり、酸溶液の温度、濃度にむ
らか生したり、帯鋼の上面にスマットが残留する等の問
題かあった。従来、酸洗条件が変動した場合には、帯鋼
の搬送速度を制御することによって、酸洗槽の酸溶液中
での浸漬時間を調節していた。しかしながら、帯鋼の搬
送速度を制御して酸洗をすることは、一連の連続作業を
行なうライン操作において、作業に支障をきたし、作業
効率を著しく低下させることになる。したがって、従来
、ライン操作において、帯鋼の搬送速度を変化させるこ
となく一定に維持したまま、良好な酸洗肌を有する帯鋼
が得られるような酸洗処理を行うことが望まれている。However, when using the above-mentioned conventional pickling equipment, pickling may occur unevenly on the top and bottom surfaces of the steel strip, the temperature and concentration of the acid solution may be uneven, and smut may remain on the top surface of the steel strip. There was a problem. Conventionally, when the pickling conditions change, the immersion time in the acid solution in the pickling tank has been adjusted by controlling the transport speed of the steel strip. However, controlling the conveyance speed of the steel strip for pickling causes problems in line operation in which a series of continuous operations are performed, and significantly reduces work efficiency. Therefore, conventionally, in line operations, it has been desired to carry out pickling treatment such that a steel strip having a good pickling surface can be obtained while maintaining the conveying speed of the steel strip constant without changing it.
本発明は、上記実情に鑑みてなされたものであり、その
目的は、帯鋼の浸漬時間を調節することが可能な酸洗槽
を提供することにある。The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a pickling tank in which the immersion time of the steel strip can be adjusted.
本発明の酸とL装置は、酸6し槽と、該酸洗槽の両端近
傍に配設された第1及び第2のロールと、該第1のロー
ルと第2のロールの間に位置調節可能に配設された可動
ロールとよりなり、第1のロールと第2のロールに掛け
渡して搬送させる帯鋼を、さらに第2のロールから可動
ロールに掛け渡して搬送させることを特徴とする。The acid and L device of the present invention includes an acid washing tank, first and second rolls disposed near both ends of the pickling tank, and a position between the first roll and the second roll. It consists of movable rolls arranged in an adjustable manner, and the steel strip is conveyed by being stretched between the first roll and the second roll, and further by being conveyed by being stretched from the second roll to the movable roll. do.
本発明の酸6し装置を用いて帯鋼を酸洗処理する場合に
ついて、実施例に該当する第1図を参酌して説明すると
、酸洗槽1に導入された帯鋼Aは、第1のロール2から
第2のロール3に掛け渡され、次いて、第2のロールか
ら可動ロール4に掛け渡されて、酸洗槽から次の工程に
搬送される。その際、可動ロール4は、移動可能に載置
されているから、酸の濃度、温度の変動や、鋼種が変更
された場合には、移動させることによって第20−ル3
と可動ロール4との間の距離りを調節し、それによって
浸漬時+81を調整することができる。The case of pickling a steel strip using the acid pickling device of the present invention will be explained with reference to FIG. 1 corresponding to the embodiment. from the roll 2 to the second roll 3, and then from the second roll to the movable roll 4, and is transported from the pickling tank to the next step. At this time, since the movable roll 4 is movably mounted, if the concentration of acid, temperature changes, or the type of steel is changed, the movable roll 4 can be moved.
By adjusting the distance between the movable roll 4 and the movable roll 4, it is possible to adjust +81 during immersion.
次に、本発明の実施例を図面によって説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第1図(a)は本発明の酸洗装置の縦断面図、第1図(
b)はその平面図である。FIG. 1(a) is a longitudinal cross-sectional view of the pickling device of the present invention, FIG.
b) is a plan view thereof.
図中、■は酸洗槽てあって、酸溶液Bで満たされている
。酸洗槽の中には、第1のロール2および第2のロール
3が固定した位置に配設されている。酸洗槽の上部には
、可動ロールを支持するための一対の支持部材7.7が
ガイドレール9.9上を移動可能に載置されている。各
支持部材7には酸洗槽の内部に達するアーム8が設けら
れ、そのアーム8の下端に、可動ロール4が回動可能に
取り付けられている。したがって、可動ロールは、ガイ
ドレール9上で支持部材7を移動させることによって、
酸洗FΩ内で移動させることができる。In the figure, ■ indicates a pickling tank, which is filled with acid solution B. Inside the pickling tank, a first roll 2 and a second roll 3 are arranged at fixed positions. A pair of support members 7.7 for supporting the movable rolls are mounted on the top of the pickling tank so as to be movable on guide rails 9.9. Each support member 7 is provided with an arm 8 that reaches the inside of the pickling tank, and a movable roll 4 is rotatably attached to the lower end of the arm 8. Therefore, by moving the support member 7 on the guide rail 9, the movable roll can
It can be moved within the pickling FΩ.
なお、5,5および6,6は、帯鋼Aを搬送するための
一対の搬送ロールである。In addition, 5, 5 and 6, 6 are a pair of conveyance rolls for conveying the strip steel A.
本発明の上記酸洗装置において、搬送ロール55によっ
て酸洗槽に送られてくる帯鋼Aは、第1のロール2から
第2のロール3に掛け渡され、さらに第2のロール3か
ら可動ロール4に折り返し状にHトは渡され、可動ロー
ル4て折り返されて、搬送ロール6.6に挟持されて搬
送される。酸洗槽には酸溶液Bか満たされているから、
帯鋼Aは第1のロール2から第2のロール3を経て可動
ロル4に至るまて酸溶液に浸漬された状態に維持される
。したがって、可動ロール4を移動させることによって
、浸漬時間を調節することが可能になる。即ち、可動ロ
ールと第2のロールとの間隔りを短くすれば、浸漬時間
が短縮され、間隔りを長くすれば、浸/1111η間を
長くすることが可能になる。In the above-mentioned pickling apparatus of the present invention, the steel strip A sent to the pickling tank by the conveyor roll 55 is passed from the first roll 2 to the second roll 3, and is further movable from the second roll 3. The H sheet is passed around the roll 4 in a folded manner, folded back over the movable roll 4, and conveyed while being held between the conveyor rolls 6 and 6. Since the pickling tank is filled with acid solution B,
The steel strip A is kept immersed in the acid solution from the first roll 2 through the second roll 3 to the movable roll 4. Therefore, by moving the movable roll 4, it becomes possible to adjust the immersion time. That is, by shortening the distance between the movable roll and the second roll, the immersion time can be shortened, and by increasing the distance, it is possible to increase the immersion/1111η interval.
本発明の酸6し装置は、上記のように、可動ロルを設け
たから、それによって酸洗処理される帯鋼の浸漬時間を
調節することが可能になり、したがって、帯鋼の搬送速
度を変更することなく、定に維持した状態で酸洗処理を
行なうことができる。したがって、本発明の酸洗装置は
、一定の搬送速度で作業が実施される連続ライン操作に
おいて使用するのに適している。As described above, the acid pickling device of the present invention is provided with a movable roll, so that it is possible to adjust the immersion time of the steel strip to be pickled, thereby changing the conveyance speed of the steel strip. The pickling treatment can be carried out in a constant state without having to do so. The pickling device of the invention is therefore suitable for use in continuous line operations where operations are carried out at a constant conveying speed.
第1図(a)は本発明の酸洗装置の縦断面図、第1図(
b)はその平面図であり、第2図は洗浄工程図であり、
第3図は従来の酸洗装置の縦断面図である。
1・・酸洗槽、2・第1のロール、3・・・第2のロー
ル、4・・可動ロール、5,6・・・搬送ロール、7支
持部材1.8・・アーム、9,9・・ガイドレール、A
・・・帯鋼、B・・酸溶液。FIG. 1(a) is a longitudinal cross-sectional view of the pickling device of the present invention, FIG.
b) is a plan view thereof, and FIG. 2 is a cleaning process diagram.
FIG. 3 is a longitudinal sectional view of a conventional pickling device. DESCRIPTION OF SYMBOLS 1... Pickling tank, 2... First roll, 3... Second roll, 4... Movable roll, 5, 6... Conveyance roll, 7 Support member 1.8... Arm, 9, 9. Guide rail, A
...Strip steel, B...Acid solution.
Claims (1)
1及び第2のロールと、該第1のロールと第2のロール
の間に位置調節可能に配設された可動ロールとよりなり
、第1のロールと第2のロールに掛け渡して搬送される
帯鋼を、さらに第2のロールから可動ロールに掛け渡し
て搬送させることを特徴とする帯鋼の酸洗装置。(1) A pickling tank, first and second rolls arranged near both ends of the pickling tank, and a position adjustable between the first roll and the second roll. Pickling of a steel band, which consists of a movable roll, and is characterized in that the steel band is conveyed by being stretched over a first roll and a second roll, and further conveyed by being stretched from the second roll to a movable roll. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23257190A JPH04116186A (en) | 1990-09-04 | 1990-09-04 | Apparatus for pickling band steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23257190A JPH04116186A (en) | 1990-09-04 | 1990-09-04 | Apparatus for pickling band steel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04116186A true JPH04116186A (en) | 1992-04-16 |
Family
ID=16941433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23257190A Pending JPH04116186A (en) | 1990-09-04 | 1990-09-04 | Apparatus for pickling band steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04116186A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19530551A1 (en) * | 1995-08-19 | 1997-02-20 | Bwg Bergwerk Walzwerk | Surface treatment of metal strip |
KR20200063901A (en) * | 2018-11-28 | 2020-06-05 | 주식회사 포스코 | Apparatus for controlling of staying lenghth of strip in pickling tank |
-
1990
- 1990-09-04 JP JP23257190A patent/JPH04116186A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19530551A1 (en) * | 1995-08-19 | 1997-02-20 | Bwg Bergwerk Walzwerk | Surface treatment of metal strip |
DE19530551C2 (en) * | 1995-08-19 | 2001-03-22 | Bwg Bergwerk Walzwerk | Method and device for surface treatment of metal strips |
KR20200063901A (en) * | 2018-11-28 | 2020-06-05 | 주식회사 포스코 | Apparatus for controlling of staying lenghth of strip in pickling tank |
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