JPS6238044B2 - - Google Patents
Info
- Publication number
- JPS6238044B2 JPS6238044B2 JP8594085A JP8594085A JPS6238044B2 JP S6238044 B2 JPS6238044 B2 JP S6238044B2 JP 8594085 A JP8594085 A JP 8594085A JP 8594085 A JP8594085 A JP 8594085A JP S6238044 B2 JPS6238044 B2 JP S6238044B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- header
- rolling
- rolled material
- leading
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 23
- 238000005098 hot rolling Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 7
- 238000004781 supercooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】 この発明は熱間圧延機の冷却装置に関する。[Detailed description of the invention] The present invention relates to a cooling device for a hot rolling mill.
従来、熱間圧延機で低温材、特殊材等を圧延す
る場合、圧延ロールと圧延材の両方に冷却水をか
けて冷やすことは通常行われているが、上記圧延
材（圧延板）は板長手方向に対する先後端部分と
両側部分がこれらの縁部で取り囲まれる中央部分
よりも冷えやすいので、これらの部分をすべて同
じ条件で散水冷却すると、冷えやすい板縁部分
（200〜300mmの範囲）が所定の冷却終了温度（低
温材、特殊材の場合は600〜800℃）よりも下がつ
てしまうという縁部過冷却（温度降下）の問題が
発生する。 Conventionally, when rolling low-temperature materials, special materials, etc. in a hot rolling mill, cooling water is usually applied to both the rolling roll and the rolled material, but the rolled material (rolled plate) is The leading and trailing edges and both sides in the longitudinal direction are more easily cooled than the central part surrounded by these edges, so if these parts are all cooled with water under the same conditions, the edge parts (200 to 300 mm range) that are easy to cool will be The problem of edge supercooling (temperature drop) occurs, where the temperature drops below a predetermined cooling end temperature (600 to 800°C for low-temperature materials and special materials).
この縁部過冷却は特に板長手方向に対する先端
部分と後端部分がに二段圧延の場合等に問題とな
り、後段圧延における荷重出力チヤートは温度降
下した板先端部分と後端部分で極めて高くなつて
不均一圧延等の原因となつていた。 This edge supercooling becomes a problem especially when the leading edge and trailing edge of the plate are rolled in two stages in the longitudinal direction, and the load output chart in the later rolling becomes extremely high at the leading edge and trailing edge of the plate where the temperature has dropped. This caused uneven rolling.
この発明は上記のような事情に鑑みてなされた
もので、その目的とする処は圧延材の先端部分及
び後端部分の温度降下（過冷却）を防止し得るよ
うにした熱間圧延機の冷却装置を提供しようとす
るものである。 This invention was made in view of the above-mentioned circumstances, and its object is to provide a hot rolling mill capable of preventing a drop in temperature (supercooling) at the leading and trailing ends of a rolled material. The aim is to provide a cooling device.
以下、この発明装置の一実施例を図面に従い詳
述すると、図中１は熱間圧延機のハウジング、２
は圧延ロール、３はバツクアツプロール、４は圧
延材、５，５′は上側圧延ロール２を散水冷却す
る前後一対のロールクーラントヘツダー、６，
６′は圧延材４に冷却水をかけて冷却する前後一
対の圧延冷却ヘツダーを示している。 Hereinafter, one embodiment of the apparatus of the present invention will be described in detail with reference to the drawings.
1 is a rolling roll, 3 is a back-up roll, 4 is a rolled material, 5, 5' is a pair of front and rear roll coolant headers for cooling the upper rolling roll 2 with water, 6,
Reference numeral 6' designates a pair of front and rear rolling cooling headers that spray cooling water on the rolled material 4 to cool it.
而して、この発明は上記の如きヘツダー５，
５′，６，６′を具備する公知の熱間圧延機におい
て、上記圧延冷却ヘツダー６，６′に、圧延材４
にかかる冷却水を制御する手段として第２図に示
すヘツダーの方向可変機構８を設けると共に、圧
延材４の先端部４ａと後端部４ｂを検出して、こ
の検出信号により冷却水制御手段としてのヘツダ
ー可変機構８を、圧延材４の先後端部分が冷え過
ぎないように、即ち圧延材先端部分４ａと後端部
分４ｂの温度が所定の冷却終了温度より降下しな
いように、連動操作する先後端検出器９，１０を
設けてなることを特徴とするものである。 Therefore, this invention has the header 5 as described above,
In a known hot rolling mill equipped with 5', 6, 6', the rolled material 4 is placed in the rolling cooling header 6, 6'.
A header direction variable mechanism 8 shown in FIG. 2 is provided as a means for controlling the cooling water, and the header direction variable mechanism 8 shown in FIG. The header variable mechanism 8 is operated in conjunction with each other to prevent the front and rear end portions of the rolled material 4 from becoming too cold, that is, to prevent the temperature of the leading end portion 4a and rear end portion 4b of the rolled material from falling below a predetermined cooling end temperature. This device is characterized by being provided with end detectors 9 and 10.
次に、冷却水制御手段としてヘツダーの散水方
向を前後に可変させる第２図の構造について詳述
すると、この実施例は上述した圧延冷却ヘツダー
６，６′を圧延機ハウジング１に対し軸受１４を
もつて回転自在に支承せしめ、このヘツダー軸端
に回動アーム１５を固着し、且つ該アーム端に前
記ヘツダー６，６′を一定の角度範囲回動させる
流体圧シリンダー１６を連結せしめたヘツダー可
変機構８を具備するものであり、圧延材４の先後
端を検出器９，１０によつて検出して、圧延材先
端部４ａと後端部４ｂの通過時に圧延冷却ヘツダ
ー６，６′の向きを前後に変化させるようにして
いる。 Next, we will explain in detail the structure shown in FIG. 2 which changes the water spraying direction of the header back and forth as a cooling water control means. The header is rotatably supported by the header, a rotating arm 15 is fixed to the shaft end of the header, and a hydraulic cylinder 16 for rotating the header 6, 6' within a certain angle is connected to the arm end. It is equipped with a mechanism 8, which detects the leading and trailing ends of the rolled material 4 with detectors 9 and 10, and determines the orientation of the rolling cooling headers 6 and 6' when the leading end 4a and rear end 4b of the rolled material pass. I try to change it back and forth.
この圧延冷却ヘツダー６，６′の可変動作は第
３図〜第６図に示されており、先ず圧延材４がロ
ール前方のヘツダー位置に移送されてくると、そ
の先端部４ａが検出器９により検出され、この検
出信号でシリンダー１６が前進作動されて、圧延
冷却ヘツダー６が第３図矢印方向に瞬時的に回動
され、冷却水が圧延材先端部分を逃げた後側位置
に斜めに拡散噴射されるようになる。従つて、こ
の場合は圧延材先端部分にかかる冷却水量が少な
くなり、該圧延材先端部分は極く僅かしか冷却さ
れずに。、そのまま圧延ロール２間に噛み込まれ
ることになり、ここでロール前方の冷却ヘツダー
６が第４図の如き下向き噴射の状態に戻される。
そして、ロール圧延された圧延材先端部４ａがロ
ール後側ヘツダー６′の所に至ると、該冷却ヘツ
ダー６′も冷却水が圧延材先端部分４ａを避けた
位置に斜行噴射されるように第４図の如く回動
し、圧延材先端部の通過後において再び第５図の
ような通常冷却状態に方向変換されることにな
る。 The variable operation of the rolling cooling headers 6, 6' is shown in FIGS. This detection signal causes the cylinder 16 to move forward, and the rolling cooling header 6 is instantaneously rotated in the direction of the arrow in FIG. It will be sprayed diffusely. Therefore, in this case, the amount of cooling water applied to the tip of the rolled material is reduced, and the tip of the rolled material is only slightly cooled. , the cooling header 6 in front of the rolls is returned to the downward jetting state as shown in FIG. 4.
When the tip end portion 4a of the rolled material reaches the roll rear header 6', the cooling water is also obliquely injected into the cooling header 6' to a position avoiding the tip end portion 4a of the rolled material. It rotates as shown in FIG. 4, and after the tip of the rolled material has passed, the direction is changed again to the normal cooling state as shown in FIG. 5.
圧延材４は第５図の状態で圧延され、該圧延進
行にともなつて圧延材後端部４ｂが検出器１０の
位置に第６図の如く到達すると、ここで後端検出
器１０により圧延材後端部が検出され、圧延冷却
ヘツダー６が第６図で示すように再び方向変換さ
れ、次いでロール後側の冷却ヘツダー６′も圧延
材後端部から逃げるように第４図と同様な状態に
方向変換されるのである。 The rolled material 4 is rolled in the state shown in FIG. The rear end of the rolled material is detected, and the rolling cooling header 6 is changed direction again as shown in FIG. It is transformed into a state.
以上の如きヘツダー６，６′の方向変換によ
り、圧延材４の先後端部分４ａ，４ｂの温度降下
（過冷却）を防止する。 By changing the direction of the headers 6, 6' as described above, the temperature drop (overcooling) of the leading and trailing end portions 4a, 4b of the rolled material 4 is prevented.
この発明の熱間圧延機冷却装置は上記のような
ものであるから、圧延材にかかる冷却水を圧延冷
却ヘツダーの方向変換によつて制御することによ
り、圧延材先後端部分の過冷却（温度降下）の問
題を確実に防止することができる効果がある。 Since the hot rolling mill cooling device of the present invention is as described above, by controlling the cooling water applied to the rolled material by changing the direction of the rolling cooling header, supercooling (temperature This has the effect of reliably preventing the problem of falling.
第１図はこの発明の装置を備えた熱間圧延機の
構成説明図、第２図は同圧延機のヘツダー方向可
変機構を示す斜視図、第３図〜第６図は同ヘツダ
ーの方向変換状態を順次に示した作用説明図であ
る。
１……ハウジング、２……圧延ロール、３……
バツクアツプロール、４……圧延材、５，５′…
…ロールクーラントヘツダー、６，６′……圧延
冷却ヘツダー、８……圧延冷却ヘツダーの可変機
構、９，１０……先後端検出器、１４……圧延冷
却ヘツダーの軸受、１５……回動アーム、１６…
…流体圧シリンダー。
Fig. 1 is an explanatory diagram of the configuration of a hot rolling mill equipped with the device of the present invention, Fig. 2 is a perspective view showing a header direction variable mechanism of the rolling mill, and Figs. 3 to 6 are direction change of the header. FIG. 3 is an action explanatory diagram showing states in sequence. 1...housing, 2...rolling roll, 3...
Back-up roll, 4...Rolled material, 5,5'...
... Roll coolant header, 6, 6'... Rolling cooling header, 8... Variable mechanism of rolling cooling header, 9, 10... Lead/rear end detector, 14... Bearing of rolling cooling header, 15... Rotation Arm, 16...
...hydraulic cylinder.
Claims (1)
ダーと、圧延材を冷却する圧延冷却ヘツダーを具
備した熱間圧延機において、圧延冷却ヘツダーを
散水方向が前後に可変できるように回動させる機
構と、前記圧延材の先後端を検出してこの検出信
号により圧延冷却ヘツダーの向きを圧延材先後端
部分の温度降下を防ぐように可変回動させる先後
端検出器とを設けたことを特徴とする熱間圧延機
の冷却装置。 ２ 圧延材冷却ヘツダーの向きを先後端検出器の
信号により前後に可変回動させる機構は、軸受に
回転支承された圧延冷却ヘツダーの軸端に回動ア
ームを取付け、この回動アームを流体圧シリンダ
ーによつて一定の角度範囲回動させる構成となつ
ていることを特徴とする特許請求の範囲第１項に
記載の熱間圧延機の冷却装置。[Scope of Claims] 1. In a hot rolling mill equipped with a roll coolant header for cooling rolling rolls and a rolling cooling header for cooling a rolled material, the rolling cooling header is rotated so that the direction of water sprinkling can be varied back and forth. and a leading and trailing end detector that detects the leading and trailing ends of the rolled material and variably rotates the direction of the rolling cooling header based on the detection signal so as to prevent a temperature drop at the leading and trailing ends of the rolled material. Cooling equipment for hot rolling mills. 2. The mechanism that variably rotates the direction of the rolled material cooling header back and forth based on signals from the leading and trailing end detectors involves attaching a rotating arm to the shaft end of the rolling cooling header that is rotatably supported by a bearing, and applying fluid pressure to the rotating arm. 2. The cooling device for a hot rolling mill according to claim 1, wherein the cooling device is configured to be rotated within a certain angular range by a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8594085A JPS60244411A (en) | 1985-04-22 | 1985-04-22 | Cooling device of hot rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8594085A JPS60244411A (en) | 1985-04-22 | 1985-04-22 | Cooling device of hot rolling mill |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9568377A Division JPS5429862A (en) | 1977-08-10 | 1977-08-10 | Cooler for hot bolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60244411A JPS60244411A (en) | 1985-12-04 |
| JPS6238044B2 true JPS6238044B2 (en) | 1987-08-15 |
Family
ID=13872755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8594085A Granted JPS60244411A (en) | 1985-04-22 | 1985-04-22 | Cooling device of hot rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60244411A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19846900C2 (en) * | 1998-10-12 | 2000-08-10 | Thyssenkrupp Stahl Ag | Method and device for producing a metal strip for tailored blanks |
| KR100823592B1 (en) | 2001-12-07 | 2008-04-21 | 주식회사 포스코 | Device for adjusting angle of nozzle in alkali tank of cleaning line |
| KR100864437B1 (en) * | 2001-12-07 | 2008-10-22 | 주식회사 포스코 | Device for assembling pipe in alkali tank of cleaning line |
| EP2676744A1 (en) | 2012-06-22 | 2013-12-25 | Siemens VAI Metals Technologies GmbH | Device for sprinkling a rolling plant and method for extracting/inserting said system from/in said rolling cage |
| JP7295409B2 (en) * | 2019-06-24 | 2023-06-21 | 日本製鉄株式会社 | Descaling equipment and hot working system |
-
1985
- 1985-04-22 JP JP8594085A patent/JPS60244411A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60244411A (en) | 1985-12-04 |
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