JPH06510U - Cooling device for hot rolled steel sheet - Google Patents
Cooling device for hot rolled steel sheetInfo
- Publication number
- JPH06510U JPH06510U JP4827292U JP4827292U JPH06510U JP H06510 U JPH06510 U JP H06510U JP 4827292 U JP4827292 U JP 4827292U JP 4827292 U JP4827292 U JP 4827292U JP H06510 U JPH06510 U JP H06510U
- Authority
- JP
- Japan
- Prior art keywords
- rolled steel
- steel sheet
- hot
- headers
- cooling water
- 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)
Abstract
(57)【要約】
【目的】 熱延鋼板Ｓの冷却に際し、板幅方向における
水量分布の均一化を図る。
【構成】 熱延鋼板Ｓの製造工程における仕上げ圧延ス
タンド出側とダウンコイラーとの間に設置されて熱延鋼
板Ｓの上方から冷却水を噴出する冷却装置において、熱
延鋼板Ｓの上方において熱延鋼板Ｓの搬送方向と直角方
向にその両エッジ部から相対移動可能に１対のヘッダー
２を配置する。多数の逆Ｕ字状ノズル４の一方端をヘッ
ダー２の上方に接続し、他方端はヘッダー２の一方側面
に隣接する位置に垂下させる。冷却すべき熱延鋼板Ｓの
板幅に応じて対をなすヘッダー２を相対移動させた際に
これらヘッダー２の重合部分における冷却水量を最適に
調整すべく、前記重合部分のノズル４のうち所定のノズ
ル４の冷却水噴出口４ａを遮蔽する遮蔽板５を対をなす
ヘッダー２に設置する。
(57) [Abstract] [Purpose] When cooling the hot-rolled steel sheet S, it is intended to make the water amount distribution uniform in the sheet width direction. In a cooling device that is installed between a finish rolling stand exit side and a down coiler in a manufacturing process of a hot-rolled steel sheet S and ejects cooling water from above the hot-rolled steel sheet S, heat is applied above the hot-rolled steel sheet S. A pair of headers 2 are arranged so as to be relatively movable from both edges of the rolled steel sheet S in a direction perpendicular to the conveying direction. One end of the plurality of inverted U-shaped nozzles 4 is connected above the header 2, and the other end is hung down to a position adjacent to one side surface of the header 2. In order to optimally adjust the amount of cooling water in the overlapped portions of the headers 2 when the paired headers 2 are relatively moved according to the width of the hot-rolled steel sheet S to be cooled, the nozzles 4 of the overlapped portions are predetermined. The shielding plate 5 that shields the cooling water ejection port 4a of the nozzle 4 is installed on the header 2 forming a pair.
Description
【０００１】[0001]
本考案は、熱延鋼板を製造する工程において、仕上げ圧延スタンドの出側から ダウンコイラーで巻き取られるまでの間に設置されて、熱延鋼板を冷却する装置 に関するものである。 The present invention relates to an apparatus for cooling a hot-rolled steel sheet, which is installed between the exit side of a finish rolling stand and the time when the hot-rolled steel sheet is wound by a down coiler in the process of manufacturing the hot-rolled steel sheet.
【０００２】[0002]
この種冷却装置は、圧延終了温度（仕上げ温度）から巻き取り完了温度（巻き 取り温度）までの冷却速度等を制御するためのものであり、熱延鋼板の内部性質 （組織、機械的性質）のみならず、表面品質にも影響を及ぼす極めて重要な装置 である。 This type of cooling device is for controlling the cooling rate from the rolling end temperature (finishing temperature) to the winding completion temperature (winding temperature), and the internal properties (structure and mechanical properties) of hot-rolled steel sheet. Not only is it a very important device that also affects the surface quality.
【０００３】 この冷却装置は、一般的には熱延鋼板の上下面に設置されたパイプラミナー、 スリットラミナー、スプレーで構成され、これら各冷却装置に設置されるノズル は鋼板幅方向に均一に配置されている。このようなノズル配置の場合、ノズルか ら熱延鋼板に噴出される冷却水は鋼板の幅中央部から板エッジ部に流れることが 多いので、板エッジ部が過冷却されて鋼板エッジ部の内部性質が不均一になると いう問題があった。This cooling device is generally composed of a pipe laminar, a slit laminar, and a spray installed on the upper and lower surfaces of a hot-rolled steel plate, and the nozzles installed in each of these cooling devices are uniformly arranged in the width direction of the steel plate. Has been done. In such a nozzle arrangement, the cooling water jetted from the nozzle to the hot-rolled steel sheet often flows from the width center of the steel sheet to the plate edge portion, so that the plate edge portion is overcooled and the inside of the steel sheet edge portion is There was a problem that the properties became uneven.
【０００４】 そこで、鋼板幅方向における品質の不均一を防止可能な冷却装置として、特開 昭５１−１１１４１１号公報や実開昭５８−１６６９１３号公報が開示されてい る。 このうち、前者の特開昭５１−１１１４１１号公報に記載の装置は、流体用ヘ ッダーを内筒と外筒との二重管構造とし、このうちの内筒にその軸線方向に長さ の異なるスリット等を円周方向に適宜の間隔をおいて複数列設け、冷却すべき鋼 板幅に応じて内筒を外筒に対して回動させることにより、外筒に配設したノズル の開閉を行い、鋼板幅に応じたノズル部分からのみ冷却水を噴出させる装置であ る。Therefore, Japanese Patent Laid-Open No. 51-111141 and Japanese Utility Model Laid-Open No. 58-166913 have been disclosed as cooling devices capable of preventing uneven quality in the width direction of the steel sheet. Among them, the former device disclosed in Japanese Patent Laid-Open No. 51-111411 has a fluid header having a double tube structure of an inner cylinder and an outer cylinder, and the inner cylinder of which has a length in the axial direction. Opening and closing the nozzles installed in the outer cylinder by providing multiple rows of different slits at appropriate intervals in the circumferential direction and rotating the inner cylinder with respect to the outer cylinder according to the width of the steel plate to be cooled. It is a device that ejects cooling water only from the nozzle part according to the steel plate width.
【０００５】 また、後者の実開昭５８−１６６９１３号公報に記載の装置は、冷却スプレー ヘッダーをその中心を軸にして水平方向に回転可能に構成し、鋼板幅に応じて冷 却スプレーヘッダーを水平方向に回転させて冷却可能幅を変化させる装置である 。In the latter device, which is disclosed in Japanese Utility Model Laid-Open No. 58-166913, a cooling spray header is configured to be horizontally rotatable about its center, and the cooling spray header is formed according to the width of the steel plate. It is a device that changes the width that can be cooled by rotating it horizontally.
【０００６】[0006]
しかしながら、前記開示された装置はいずれも鋼板幅方向の水量分布を変更す るものではないので、板エッジ部の過冷却を完全に防止することはできなかった 。このため、前記したような鋼板の内部性質が不均一となるという不具合の一部 は改善できるが、完全には内部性質の不均一を消滅させることはできない。 However, since none of the above-mentioned disclosed devices change the water amount distribution in the steel plate width direction, it was not possible to completely prevent supercooling of the plate edge portion. Therefore, although some of the problems that the internal properties of the steel sheet become non-uniform as described above can be improved, the non-uniformity of internal properties cannot be completely eliminated.
【０００７】 本考案は、上記した問題点に鑑みてなされたものであり、熱延鋼板の内部性質 の不均一を可及的に防止可能な冷却装置を提供することを目的とするものである 。The present invention has been made in view of the above problems, and an object of the present invention is to provide a cooling device capable of preventing nonuniformity of internal properties of a hot-rolled steel sheet as much as possible. .
【０００８】[0008]
上記した目的を達成するために、本考案は、熱延鋼板の製造工程における仕上 げ圧延スタンド出側とダウンコイラーとの間に設置されて熱延鋼板の上方から冷 却水を噴出する冷却装置において、前記熱延鋼板の上方において熱延鋼板の搬送 方向と直角方向にその両エッジ部から相対移動可能に配置された１対のヘッダー と、これらヘッダーの上方に一方端を接続し、他方端はヘッダーの一方側面に隣 接する位置に垂下させた多数の逆Ｕ字状ノズルと、前記ヘッダーのうちの少なく ともどちらか一方に設置され、冷却すべき熱延鋼板の板幅に応じて対をなすヘッ ダーを相対移動させた際にこれらヘッダーの重合部分における冷却水量を最適に 調整すべく、前記重合部分のノズルのうち所定のノズルの冷却水噴出口を遮蔽す る遮蔽板とを具備させているのである。 In order to achieve the above-mentioned object, the present invention is a cooling device installed between a finish rolling stand exit side and a down coiler in a manufacturing process of hot-rolled steel sheet to eject cooling water from above the hot-rolled steel sheet. In the above, a pair of headers is arranged above the hot-rolled steel sheet so as to be relatively movable from both edges of the hot-rolled steel sheet in the direction perpendicular to the conveying direction of the hot-rolled steel sheet, and one end is connected above these headers and Are installed in a number of inverted U-shaped nozzles that hang down adjacent to one side of the header and at least one of the headers, and pairs are formed according to the width of the hot-rolled steel sheet to be cooled. In order to optimally adjust the amount of cooling water in the overlapped portion of these headers when the heads of the eggplants are moved relative to each other, a shield plate that shields the cooling water jet port of a predetermined nozzle of the overlapped portion is provided. Is're allowed to.
【０００９】[0009]
【作用】 本考案に係る熱延鋼板の冷却装置は上記したような構成としたので、冷却すべ き板幅に応じて対をなすヘッダーを相対移動させれば、これらヘッダーの重合部 分におけるノズルのうちの所定のノズルの冷却水噴出口は遮蔽板で遮蔽され、前 記重合部分における冷却水量は最適に調整されることになって、板幅方向におけ る水量分布の均一化が図れる。The hot-rolled steel sheet cooling device according to the present invention is configured as described above. Therefore, if the paired headers are moved relative to each other according to the width of the cooling slide sheet, the nozzles in the overlapping portion of these headers are moved. Among these, the cooling water jet of a predetermined nozzle is shielded by a shielding plate, and the amount of cooling water in the above-mentioned overlapping portion is optimally adjusted, so that the distribution of water amount in the plate width direction can be made uniform.
【００１０】[0010]
以下、本考案に係る熱延鋼板の冷却装置を、添付図面に示す１実施例に基づい て説明する。 図１は本考案に係る熱延鋼板の冷却装置の１実施例を示す要部斜視図、図２は ノズルの冷却水噴出口部分と遮蔽板との位置関係を示す部分斜視図、図３は本考 案冷却装置の要部平面図で、（ａ）はヘッダーの移動制御前、（ｂ）はヘッダー の移動制御後、図４は本考案冷却装置の全体概略平面図である。 Hereinafter, a cooling device for hot rolled steel sheet according to the present invention will be described with reference to an embodiment shown in the accompanying drawings. FIG. 1 is a perspective view of an essential part of a cooling device for a hot rolled steel sheet according to the present invention, FIG. 2 is a partial perspective view showing a positional relationship between a cooling water jetting portion of a nozzle and a shielding plate, and FIG. FIG. 4 is a plan view of an essential part of the cooling device according to the present invention, (a) before the movement control of the header, (b) after the movement control of the header, and FIG. 4 is an overall schematic plan view of the cooling device of the present invention.
【００１１】 図面において、１は本考案に係る熱延鋼板の冷却装置であり、熱延鋼板Ｓの製 造工程における仕上げ圧延スタンド出側とダウンコイラーとの間に設置され、以 下に説明するような構成となされている。In the drawings, reference numeral 1 denotes a hot-rolled steel sheet cooling device according to the present invention, which is installed between a finish rolling stand exit side and a down coiler in a hot-rolled steel sheet S manufacturing process, which will be described below. It is configured like this.
【００１２】 ２は熱延鋼板Ｓの上方に配置されたヘッダーであり、これらヘッダー２はその 中心軸が所要の間隔を存して、かつ対抗状に配置された２個で対をなし、それぞ れが熱延鋼板Ｓの搬送方向と直角方向にそのエッジ部から例えばシリンダ装置３ のロッドの出退動によって相対移動が可能なように配置されている。Reference numeral 2 denotes a header arranged above the hot-rolled steel sheet S, and these headers 2 form a pair with their central axes having a required distance and arranged in opposition. Each of them is arranged so as to be capable of relative movement in the direction perpendicular to the conveying direction of the hot-rolled steel sheet S from its edge portion by, for example, withdrawal and retraction of the rod of the cylinder device 3.
【００１３】 ４は前記それぞれのヘッダー２内に供給された冷却水を熱延鋼板Ｓに向けて噴 出するノズルであり、ヘッダー２の上方に一方端を接続し、他方端はヘッダー２ の一方側面に隣接する位置に垂下させた、例えば逆Ｕ字状に形成されている。こ のノズル４はヘッダー２に所定の間隔を存して多数配設され、また、対をなす各 ヘッダー２に配設されるノズル４の他方端は、図４に示すように、互いに離反す べき位置状態となるように設置されている。Reference numeral 4 denotes a nozzle for ejecting the cooling water supplied into each of the headers 2 toward the hot-rolled steel plate S, one end of which is connected above the header 2 and the other end of which is one of the headers 2. For example, it is formed in an inverted U-shape that hangs down at a position adjacent to the side surface. A large number of these nozzles 4 are arranged in the header 2 at a predetermined interval, and the other ends of the nozzles 4 arranged in each pair of headers 2 are separated from each other as shown in FIG. It is installed so that it is in the proper position.
【００１４】 ５は前記それぞれのヘッダー２に一方側を設置し、他方側は対をなすヘッダー ２方向に延出させた遮蔽板であり、前記対をなすヘッダー２に配設した多数のノ ズル４の他方端である冷却水噴出口４ａを結ぶ線と相対する遮蔽板５上の位置に は、所要のノズル４設置ピッチで冷却水噴出口４ａの直径と略同径の開口５ａが 設けられている。Reference numeral 5 denotes a shielding plate having one side installed on each of the headers 2 and the other side extending in the direction of the paired headers 2. The plurality of nozzles arranged on the paired headers 2 are provided. At the position on the shield plate 5 opposite to the line connecting the cooling water jets 4a, which is the other end of 4, the openings 5a having the same diameter as the diameter of the cooling water jets 4a are provided at the required nozzle 4 installation pitch. ing.
【００１５】 従って、冷却すべき熱延鋼板Ｓの板幅に応じて対をなすヘッダー２を相対移動 させた際には、これらヘッダー２の重合部分における所定ノズル４の冷却水噴出 口４ａは遮蔽板５によって塞がれ、他方残りのノズル４の冷却水噴出口４ａは遮 蔽板５の開口５ａと一致することになって冷却水量を最適に調整できることにな る。Therefore, when the pair of headers 2 are moved relative to each other according to the width of the hot rolled steel sheet S to be cooled, the cooling water ejection port 4a of the predetermined nozzle 4 in the overlapping portion of these headers 2 is shielded. The cooling water jet 4a of the remaining nozzle 4 is blocked by the plate 5, and the cooling water jet 4a coincides with the opening 5a of the shielding plate 5, so that the amount of cooling water can be optimally adjusted.
【００１６】 ６は前記シリンダ装置３のロッドの出退動を行わせる駆動源であり、上位計算 機７から出力された冷却すべき熱延鋼板Ｓの板幅値に基づくヘッダー位置制御装 置８からの出力信号によってシリンダ装置３のロッドを出退動させるものである 。なお、９はシリンダ装置３のロッドの出退量（ヘッダー２の移動量）を検出す る検出器である。Reference numeral 6 denotes a drive source for moving the rod of the cylinder device 3 back and forth, and a header position control device 8 based on the plate width value of the hot-rolled steel plate S to be cooled output from the host computer 7. The rod of the cylinder device 3 is moved in and out by an output signal from the. Reference numeral 9 is a detector for detecting the amount of rod movement of the cylinder device 3 (the amount of movement of the header 2).
【００１７】 次に、本考案冷却装置を用いて熱延鋼板Ｓを冷却する方法について説明する。 上位計算機７から送信された熱延鋼板Ｓの板幅値に基づき、ヘッダー位置制御 装置８は駆動源６にシリンダ装置３のロッドの出動作量を指令する。このロッド の出動作量は、対をなすヘッダー２の最外部に位置するノズル４間距離が板幅と 同じとなる量である。Next, a method of cooling the hot-rolled steel sheet S using the cooling device of the present invention will be described. Based on the plate width value of the hot-rolled steel plate S transmitted from the host computer 7, the header position control device 8 commands the drive source 6 to output the rod of the cylinder device 3. The amount of movement of this rod is such that the distance between the nozzles 4 located at the outermost part of the pair of headers 2 becomes the same as the plate width.
【００１８】 以上のように対をなすヘッダー２の相対位置を制御したのち、それぞれのヘッ ダー２に冷却水を供給すれば、ヘッダー２内に供給された冷却水はそれぞれのノ ズル４の冷却水噴出口４ａから熱延鋼板Ｓの表面に向かって噴出し熱延鋼板Ｓを 冷却することになる。この時、ヘッダー２の重合部分における所定ノズル４の冷 却水噴出口４ａは遮蔽板５によって塞がれ、他方残りのノズル４の冷却水噴出口 ４ａは遮蔽板５の開口５ａと一致するので、重合部分における冷却水量は最適に 制御され、板幅方向の水量分布は均一となる。After controlling the relative position of the pair of headers 2 as described above, if the cooling water is supplied to each of the headers 2, the cooling water supplied into the header 2 is cooled by each of the nozzles 4. The hot-rolled steel sheet S is cooled by being jetted from the water jet port 4a toward the surface of the hot-rolled steel sheet S. At this time, the cooling water ejection port 4a of the predetermined nozzle 4 in the overlapping portion of the header 2 is blocked by the shielding plate 5, while the cooling water ejection port 4a of the remaining nozzle 4 coincides with the opening 5a of the shielding plate 5. The amount of cooling water in the polymerized part is optimally controlled, and the water amount distribution in the plate width direction becomes uniform.
【００１９】[0019]
以上説明したように、本考案によれば、冷却すべき熱延鋼板の板幅方向におけ る水量分布を最適に制御できるので、板エッジ部の過冷却を防止できる。従って 、熱延鋼板の内部性質の均一化が可能となり、品質の優れた熱延鋼板を製造でき るという効果を有する。 As described above, according to the present invention, it is possible to optimally control the water amount distribution in the plate width direction of the hot rolled steel plate to be cooled, so that it is possible to prevent overcooling of the plate edge portion. Therefore, the internal properties of the hot-rolled steel sheet can be made uniform, and the hot-rolled steel sheet of excellent quality can be manufactured.
【００２０】 なお、本実施例では対をなすヘッダー２それぞれに遮蔽板５を設置したものを 示したが、どちらか一方のヘッダー２のみに遮蔽板５を設置してもよいことは勿 論である。In this embodiment, the shield plate 5 is installed on each of the pair of headers 2, but it is needless to say that the shield plate 5 may be installed on only one of the headers 2. is there.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案に係る熱延鋼板の冷却装置の１実施例を
示す要部斜視図である。FIG. 1 is a perspective view of an essential part showing an embodiment of a hot-rolled steel sheet cooling device according to the present invention.
【図２】ノズルの冷却水噴出口部分と遮蔽板との位置関
係を示す部分斜視図である。FIG. 2 is a partial perspective view showing a positional relationship between a cooling water jetting portion of a nozzle and a shielding plate.
【図３】本考案冷却装置の要部平面図で、（ａ）はヘッ
ダーの移動制御前、（ｂ）はヘッダーの移動制御後を示
す。3A and 3B are plan views of a main part of a cooling device according to the present invention, where FIG. 3A is before header movement control and FIG.
【図４】本考案冷却装置の全体概略平面図である。FIG. 4 is an overall schematic plan view of the cooling device of the present invention.
Ｓ 熱延鋼板 １ 熱延鋼板の冷却装置 ２ ヘッダー ３ シリンダ装置 ４ ノズル ４ａ 冷却水噴出口 ５ 遮蔽板 S Hot-rolled steel plate 1 Cooling device for hot-rolled steel plate 2 Header 3 Cylinder device 4 Nozzle 4a Cooling water jet port 5 Shielding plate
Claims (1)
スタンド出側とダウンコイラーとの間に設置されて熱延
鋼板の上方から冷却水を噴出する冷却装置において、前
記熱延鋼板の上方において熱延鋼板の搬送方向と直角方
向にその両エッジ部から相対移動可能に配置された１対
のヘッダーと、これらヘッダーの上方に一方端を接続
し、他方端はヘッダーの一方側面に隣接する位置に垂下
させた多数の逆Ｕ字状ノズルと、前記ヘッダーのうちの
少なくともどちらか一方に設置され、冷却すべき熱延鋼
板の板幅に応じて対をなすヘッダーを相対移動させた際
にこれらヘッダーの重合部分における冷却水量を最適に
調整すべく、前記重合部分のノズルのうち所定のノズル
の冷却水噴出口を遮蔽する遮蔽板とを具備してなること
を特徴とする熱延鋼板の冷却装置。1. A cooling device, which is installed between the exit side of a finish rolling stand and a down coiler in a manufacturing process of a hot rolled steel sheet and jets cooling water from above the hot rolled steel sheet, heat is provided above the hot rolled steel sheet. A pair of headers arranged to be relatively movable from both edge portions in the direction perpendicular to the direction of conveyance of the rolled steel sheet, and one end is connected above these headers, and the other end is located at a position adjacent to one side surface of the header. A large number of hanging U-shaped nozzles and at least one of the headers are installed, and when a pair of headers are moved relative to each other according to the width of the hot rolled steel sheet to be cooled, these headers are moved. In order to optimally adjust the amount of cooling water in the overlapped portion, a hot-rolled steel sheet, comprising: a shield plate that shields a cooling water jet of a predetermined nozzle among the nozzles in the overlapped portion. Cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4827292U JP2551663Y2 (en) | 1992-06-16 | 1992-06-16 | Cooling equipment for hot rolled steel sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4827292U JP2551663Y2 (en) | 1992-06-16 | 1992-06-16 | Cooling equipment for hot rolled steel sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06510U true JPH06510U (en) | 1994-01-11 |
| JP2551663Y2 JP2551663Y2 (en) | 1997-10-27 |
Family
ID=12798811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4827292U Expired - Lifetime JP2551663Y2 (en) | 1992-06-16 | 1992-06-16 | Cooling equipment for hot rolled steel sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2551663Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51129999A (en) * | 1975-05-07 | 1976-11-11 | Shiyuuei Takai | Cutting tools |
-
1992
- 1992-06-16 JP JP4827292U patent/JP2551663Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51129999A (en) * | 1975-05-07 | 1976-11-11 | Shiyuuei Takai | Cutting tools |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2551663Y2 (en) | 1997-10-27 |
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