JPS6043435A - Method and device for cooling hot-rolled steel plate - Google Patents
Method and device for cooling hot-rolled steel plateInfo
- Publication number
- JPS6043435A JPS6043435A JP58149963A JP14996383A JPS6043435A JP S6043435 A JPS6043435 A JP S6043435A JP 58149963 A JP58149963 A JP 58149963A JP 14996383 A JP14996383 A JP 14996383A JP S6043435 A JPS6043435 A JP S6043435A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- plate
- cooling
- hot steel
- rolls
- 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.)
- Granted
Links
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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鋼板の熱間圧延ラインあるいは熱処理ライン
における熱鋼板の冷却方法と、それに使用する装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for cooling a hot steel plate in a hot rolling line or a heat treatment line for steel plates, and an apparatus used therefor.
従来から、かかる熱鋼板の冷却に当たっては、その目的
に応じて、冷却水を噴霧する方式、スリット又はパイプ
ラミナーを用いる方式、浸堰をラインに設置して熱鋼板
を冷却水中に通板させる方式、近接スプレーノズルを用
いる方式等が採用されている。Conventionally, methods for cooling hot steel plates have been used, depending on the purpose: spraying cooling water, using slits or pipe lamina, or installing an immersion weir in the line and passing the hot steel plates through cooling water. , methods using close spray nozzles, etc. have been adopted.
しかしながら、冷却水を噴霧する方式、スリット又はパ
イプラミナーを用いる方式、あるいは浸堰をラインに設
置して熱鋼板を冷却水中に通板さゼる方式は冷却能の制
御範囲が狭く、また、その冷却のために用いられる装置
の構造上、鋼板形状が悪化し易い等の欠点が多く、一部
の特殊な用途で使用されているに過ぎない。However, methods that spray cooling water, use slits or pipe laminar, or install an immersion weir in the line and pass hot steel plates through cooling water have a narrow control range of cooling capacity. Due to the structure of the equipment used for cooling, there are many drawbacks such as the tendency for the shape of the steel plate to deteriorate, so it is only used for some special purposes.
他方、近接スプレーノズルを用いる方式は冷却能の制御
範囲が広く、例えば特公昭４７−４６６４１号公報に示
されているように、鋼板形状の悪化についてもかなり改
善されており、適用範囲が広い冷却方式であって近年広
く採用されている。On the other hand, the method using a close spray nozzle has a wide range of control over the cooling capacity, and as shown in Japanese Patent Publication No. 47-46641, the deterioration of the shape of the steel plate has been considerably improved, making it a cooling method with a wide range of applications. This method has been widely adopted in recent years.
しかし、この冷却方式にあっては、スプレーノズルから
噴射された冷却水の被冷却材である鋼板上への停滞の現
象が鋼板先端及び後端部と鋼板中央部で差があるため、
鋼板の先端部および後端部は中央部より鋼板温度が下が
ると共に上反り形状が発生しやすい欠点を持っている。However, in this cooling method, there is a difference in the phenomenon of stagnation of the cooling water injected from the spray nozzle onto the steel plate, which is the material to be cooled, between the front and rear ends of the steel plate and the center of the steel plate.
The tip and rear ends of the steel plate have the disadvantage that the temperature of the steel plate is lower than that of the center and that warping is likely to occur.
この現象を第１図に基づいて説明する。熱鋼板（１）が
冷却装置に進入すると、ＩＭ送ロール（２）の各ロール
間に配置されている下スプレーノズル（４ｂ）からの噴
射水は、鋼板＋１１の下面に衝突後、直ちに落下するが
、押えロール（３）の各ロール間に配置されている上ス
プレーノズル（４ａ）からの噴射水は鋼板（１）の上面
に（多ｉ突後は鋼板上に板上水として残る。押えロール
（３）の各ロール間の板」１水は鋼板の両側端部から落
下するのみであるので、この板上水の量は鋼板の中央部
においては（５ａ）として示す状態で滞留する。これに
対して、鋼板（１）の先端部あるいは後端部にあっては
、鋼板両側αＮ、１部からと同時に先端あるいは後端か
らも落下するため、鋼板先端部又は後端部の板上水（５
ｂ）の残存量は前記の中央部に比べて少なくなる。This phenomenon will be explained based on FIG. When the hot steel plate (1) enters the cooling device, the water jetted from the lower spray nozzle (4b) arranged between each roll of the IM feed roll (2) immediately falls after colliding with the lower surface of the steel plate +11. However, the water jetted from the upper spray nozzle (4a) arranged between each roll of the presser roll (3) is sprayed onto the upper surface of the steel plate (1) (after the multi-rolling, it remains on the steel plate as plate water. Since the water on the plate between each roll of rolls (3) only falls from both ends of the steel plate, the amount of water on the plate remains in the state shown in (5a) in the center of the steel plate. On the other hand, since the tip or rear end of the steel plate (1) falls from the tip or rear end of the steel plate at the same time as αN on both sides of the steel plate, Water (5
The remaining amount of b) is smaller than that in the central portion.
第２図に、板上水残存量の高さＨと、上スプレーノズル
（４ａ）から噴射されたスプレー水の鋼板（１１表面ｉ
■ｉ突圧との関係を示す。同図から衝突圧は板上水高さ
Ｈ４，：大きく影響されることが判る。このことは、第
１図に示す板上水（５ｂ）の残存高さ■１が低い鋼板の
先端あるいは後端部と板上水（５ａ）の残存高さＨが高
い中央部とでは、スプレー水の衝突圧に差を生じて、こ
れが鋼板の」二記各Ｊ（ｌにおける冷却能に差を発生さ
せることを示している。Figure 2 shows the height H of the remaining amount of water on the plate and the steel plate (11 surface i) of the spray water injected from the upper spray nozzle (4a).
■I shows the relationship with thrust pressure. From the same figure, it can be seen that the collision pressure is greatly influenced by the water height H4 above the plate. This means that the tip or rear end of the steel plate where the residual height (1) of the plate water (5b) shown in Figure 1 is low and the center part where the residual height H of the plate water (5a) is high are the same. This shows that a difference occurs in the impingement pressure of water, which causes a difference in the cooling capacity of the steel plate at each point.
即ち、鋼板先端又は後端部は中央部よりも、より急冷さ
れることになる。そして、スプレー水の冷却能に影響を
与える板上水（５）の残存高さＨは、使用スプレー水量
Ｑ、鋼板幅、ロールピッチＰによって変化するので、結
局、かかる型の鋼板冷却装置の冷却能は、これらがその
変動の因子となる。That is, the front or rear end of the steel plate is cooled more rapidly than the center. The remaining height H of the plate water (5), which affects the cooling ability of the spray water, changes depending on the amount of spray water used, Q, the width of the steel plate, and the roll pitch P. These are the factors that cause fluctuations in performance.
本発明の目的は、上記現象に着目して鋼板長手方向の温
度を均一化すると共に、良形状の鋼板を得る冷却方法と
装置を提供することにある。An object of the present invention is to provide a cooling method and apparatus for uniformizing the temperature in the longitudinal direction of a steel plate and obtaining a well-shaped steel plate by paying attention to the above-mentioned phenomenon.
本発明は、熱鋼板冷却装置における熱鋼板の位置をトラ
ッキング管理し、そのトラッキング情作で熱鋼板の先端
又は後端到達位置のスプレー噴射液の遮閉板を前進又は
後進制御するものである。The present invention tracks and manages the position of a hot steel plate in a hot steel plate cooling device, and uses the tracking to control forward or backward movement of a spray liquid blocking plate at a position where the leading or trailing end of the hot steel plate is reached.
以下に本発明の一実施例を図面を参照しながら詳細に説
明する。An embodiment of the present invention will be described in detail below with reference to the drawings.
第３図は本発明の冷却装置の全体構成図、第４図はスプ
レー縮閉装置の断面図、第５図は遮閉板および遮閉板駆
動用シリンダの平面図、第６図は遮閉板の開および閉状
態の説明図、第７図は冷却演算制御装置の構成の一例を
示す図、第８図は遮閉板制御説明用タイムチャートであ
る。Fig. 3 is an overall configuration diagram of the cooling device of the present invention, Fig. 4 is a sectional view of the spray closure device, Fig. 5 is a plan view of the shielding plate and the cylinder for driving the shielding plate, and Fig. 6 is the shielding plate. FIG. 7 is an explanatory diagram of the open and closed states of the plate, FIG. 7 is a diagram showing an example of the configuration of the cooling arithmetic and control device, and FIG. 8 is a time chart for explaining the shielding plate control.
（６）は冷却装置の全体を示し、熱鋼板ｔａ送シライン
設置されており、搬送用ロール（２）、押えロール（３
）、スプレーノズル（４）５ ヘッダー（７）及びスプ
レー縮閉装置α０）を有する。(6) shows the entire cooling system, in which a hot steel plate ta feed line is installed, a conveyor roll (2), a presser roll (3)
), a spray nozzle (4), a header (7), and a spray closure device α0).
（８）は冷却装置（６）の熱６１ｔｔ＆ ｏ、＋の進入
側に設けられた鋼板進入検出器を示し、（９ａ）および
（９ｂ）はそれぞれ冷却装置の入側と出側とに設置され
ている鋼板の温度を検出する温度計である。(8) shows a steel plate intrusion detector installed on the heat 61tt&o, + entrance side of the cooling device (6), and (9a) and (9b) are installed on the entrance and exit sides of the cooling device, respectively. This is a thermometer that detects the temperature of a steel plate.
前記のスプレー縮閉装置００）は、第４図にその詳細を
示すように、各ロール（２１，（３＋間のスプレーノズ
ル（４）と鋼板パスライン（１５）間に、鋼板パスライ
ン（１５）の上下方向に、且つ各ロール間毎に配置され
ており、遮閉坂（１２）と遮閉板駆動用シリンダ（１３
）とエプロン（１１）とから構成されている。同エプロ
ン（１１）は鋼板（１１が反った場合のスプレーノズル
（４）の破損を防止すると共に、遮閉板（１２）を保持
するための突起（１４）を持っていて、冷却装置の本体
（図示せず）に固定されている。As shown in detail in FIG. 4, the spray condensing device 00) has a steel plate pass line (15) between the spray nozzle (4) between each roll (21, (3+) and the steel plate pass line (15). ) is arranged in the vertical direction and between each roll, and the shielding slope (12) and the shielding plate driving cylinder (13
) and an apron (11). The apron (11) prevents damage to the spray nozzle (4) if the steel plate (11) warps, and also has a protrusion (14) for holding the shielding plate (12). (not shown).
また、前記のエプロン（１１）および遮閉板（１２）の
それぞれには、第５図に示すノズル（４）のピッチ（ａ
ｌに合う間隔を以て、複数のスプレー用孔（１６）と（
１７）とが設ｉノられている。縮閉板（１２）は、縮閉
板駆動用シリンダ（１３）によって往復運動可能に構成
されており、そして、同遮閉板駆動用シリンダ（１３）
は、後述の縮閉板オンオフタイミング制御機構（２２）
からの作動信号によってエプロンのスプレー孔（１６）
と縮閉板のスプレー孔（１７）とを第６図（ａ）に示す
開状態から、第６図（ｂ）に示す閉状態へ、また閉状態
から開状態へ縮閉板（１２）をａ／２ピッチ移動移動力
るように構成されている。Further, each of the apron (11) and the shielding plate (12) has a pitch (a) of the nozzle (4) shown in FIG.
A plurality of spray holes (16) and (
17) is established. The retractable plate (12) is configured to be able to reciprocate by a retractable plate driving cylinder (13), and the retractable plate driving cylinder (13)
is the retraction plate on/off timing control mechanism (22), which will be described later.
The spray hole (16) in the apron is activated by the activation signal from
and the spray hole (17) of the retractable plate from the open state shown in FIG. 6(a) to the closed state shown in FIG. 6(b), and from the closed state to the open state. It is configured to have a moving force of a/2 pitch.
第７図は、縮閉板（１２）の前記開閉移動を■；制御す
るための冷却演算制御装置を示すブロック図を示す。FIG. 7 is a block diagram showing a cooling calculation and control device for controlling the opening and closing movement of the retraction plate (12).
同図において、（２０）は、熱鋼板の鋼種、板厚。In the figure, (20) indicates the steel type and thickness of the hot steel plate.
板ｒｌＪ、板長、板長思入側温度って冷却液量、冷却装
置内通板速度等を演算して冷却装置全体の冷却能を制御
する冷却制御機構である。（２１）は、冷却制御機構（
２０）の指令によって縮閉板の使用個数、上、下遮閉板
の組合せ制御、縮閉タイミング等を演算する縮閉板制御
演算機構である。（２３）は、前記の冷却制御機構（２
０）から与えられる板長情報、鋼板進入検出器（８）で
得られる鋼板トランキング開始信号、冷却装置内搬送テ
ーブルに設けた回転数検出器で得られる搬送テーブル通
板速度情報に基づき、鋼板（１１の先端および後端の時
々刻々の位置を管理する鋼板位置トラッキング管理機構
である。（２２）は、前記縮閉板制御演算機構（２１）
と鋼板位置トランクキング管理機構（２３）の指令によ
って指令された特定の縮閉板を指令されたタイミングで
開、閉制御する縮閉板オンオフタイミング制御機構であ
り、（２４）は縮閉板の作動実績を検出して冷却制御機
構（２０）にフィードハックする縮閉板作動実績管理機
構である。It is a cooling control mechanism that controls the cooling capacity of the entire cooling device by calculating the plate rlJ, the plate length, the plate length consideration side temperature, the amount of cooling liquid, the plate passing speed in the cooling device, etc. (21) is the cooling control mechanism (
This is a retractable plate control calculation mechanism that calculates the number of retractable plates to be used, the combination control of the upper and lower shielding plates, the retracting/closing timing, etc. according to the commands 20). (23) The cooling control mechanism (2
0), the steel plate trunking start signal obtained from the steel plate entry detector (8), and the conveying table threading speed information obtained from the rotation speed detector installed on the conveying table in the cooling device. (22) is a steel plate position tracking management mechanism that manages the momentary positions of the leading and trailing ends of (11).
(24) is a retractable plate on/off timing control mechanism that controls the opening and closing of a specific retractable plate at the commanded timing according to the command of the steel plate position trunking management mechanism (23). This is a closure plate operation performance management mechanism that detects the operation performance and feeds it back to the cooling control mechanism (20).
各縮閉板の作動は、前記の冷却制御機構（２０）および
縮閉板制御演算機構（２１）の演算結果によって、予め
決められたプログラムに基づいて行われる。The operation of each contraction plate is performed based on a predetermined program based on the calculation results of the cooling control mechanism (20) and the contraction plate control calculation mechanism (21).
第８図に、縮閉板（Ａ）、（Ｂ）、（Ｃ）。FIG. 8 shows retractable plates (A), (B), and (C).
（Ｄ）、（Ｅ）５枚の場合の開閉制御のタイムチャート
を示す。同図において、上方図は鋼板の各縮閉板の位置
での通過時間を示し、下方図に各通過時間に対応しての
各縮閉板の開閉状態を示す。(D) and (E) show time charts of opening/closing control in the case of five sheets. In the figure, the upper view shows the passage time of the steel plate at the position of each evolute plate, and the lower view shows the open/closed state of each evolute plate corresponding to each passage time.
縦軸りは第３図に示す冷却装置（６）の入側からの距離
を示し、横軸は鋼板（１）の進入後の経過時間′ｒを示
す。■−１およびＬ２に設げられている縮閉板（Ａ）お
よび（Ｂ）は、鋼板の先端および後端の縮閉に使用し、
その制御タイミングは鋼板先端部がｒＬ１＋゛ΔＴｔ、
および Ｔｔ２→−ΔＴｔ２、鋼板後端部がＴｂ、−Δ
ＴｂＬおよび Ｔｂ２−ΔＴｂ２である。The vertical axis indicates the distance from the entrance side of the cooling device (6) shown in FIG. 3, and the horizontal axis indicates the elapsed time 'r after the steel plate (1) enters. ■ The retractable plates (A) and (B) provided at -1 and L2 are used to retract and close the front and rear ends of the steel plate.
The control timing is such that the tip of the steel plate is rL1+゛∆Tt,
and Tt2 → -ΔTt2, the rear end of the steel plate is Tb, -Δ
TbL and Tb2-ΔTb2.
また、距離Ｌ３に設りられている縮閉板（Ｃ）は、ｔ１
４扱先線先端みの縮閉に使用し制御タイミングはＴＬ３
→−ΔＴｔ３であり、距離Ｌ４に設けられている縮閉
仮（１））は鋼板後端部のシの縮閉に使用し、制御タイ
ミングはＴ ｂ ４．−ΔＴｂ４である。さらに、距に
１１Ｌ５に設りられている縮閉板（Ｅ）は先端および後
端部の縮閉には使用せず、鋼板（１）が冷却装置（６）
内に存在中は常時開の状態にある。Further, the retractable plate (C) installed at a distance L3 is t1
4 Used for closing and closing only the tip of the treated line, and the control timing is TL3.
→-ΔTt3, and the retraction temporary (1) provided at distance L4 is used to retract and close the rear end of the steel plate, and the control timing is T b 4. -ΔTb4. Furthermore, the retractable plate (E) installed at 11L5 in the distance is not used for retracting the front and rear ends, and the steel plate (1) is attached to the cooling device (6).
It is always open while it is inside.
熱鋼板（１）の冷却装置（６）内への進入は鋼板進入検
出器（８）の信号で検知し、鋼板位置トラッキング管理
機構（２３）で時々刻々の鋼板先端および後端位置を把
握し、縮閉板オンオフタイミング制御機構（２２）にそ
の信号を入力している。The entry of the heated steel plate (1) into the cooling device (6) is detected by the signal from the steel plate entry detector (8), and the steel plate position tracking management mechanism (23) grasps the position of the leading and trailing ends of the steel plate from time to time. , the signal is input to the retraction plate on/off timing control mechanism (22).
次に縮閉板の制御方法について説明する。Next, a method of controlling the contraction plate will be explained.
まず、通板速度Ｖで進行する鋼板先端が冷却装置（６）
内に進入する時間Ｔｔｉで、鋼板先端の縮閉には使用し
ない縮閉板（Ｄ）および（Ｅ）の駆動用シリンダ（１３
）を作動させて縮閉板（Ｄ）、（Ｅ）を第６図（ｂ）に
示す閉の状態から第６図（ａ）に示す開の状態にする。First, the tip of the steel plate that advances at the plate threading speed V is placed in the cooling device (6).
At the time Tti when the steel plate ends, the driving cylinders (13
) to change the retractable plates (D) and (E) from the closed state shown in FIG. 6(b) to the open state shown in FIG. 6(a).
次に鋼板先端が縮閉板（Δ）の設置位置Ｌ１に達すると
、縮閉板（Ａ）で鋼板先端部を距離■・ΔＴｔ、だげ縮
閉するために、時間Ｔｔ１ ＋ΔＴｔ、で縮閉板駆動用
シリンダ（１３）を作動させて閉から開Ｇこする。Next, when the tip of the steel plate reaches the installation position L1 of the retractable plate (Δ), the tip of the steel plate is retracted and closed by the retractable plate (A) by a distance of ∆Tt for a time of Tt1 +ΔTt. Activate the plate drive cylinder (13) and turn it from closed to open.
次に、鋼板先端が縮閉板（Ｂ）および（Ｃ）の位置Ｌ２
およびＬ３に達すると、前記縮閉ｔ＆（Ａ）の時と同様
に時間Ｔｔ２＋ΔＴｔ２およびＴｔａ →Δ’ｒｔａで
縮閉板（Ｂ）および（Ｃ）を閉から開にする。Next, the tip of the steel plate is at position L2 of the retractable plates (B) and (C).
When L3 is reached, the retractable plates (B) and (C) are changed from closed to open at the time Tt2 + ΔTt2 and Tta → Δ'rta, as in the case of the retractable t&(A).
さらに鋼板が進行し、鋼板後端が縮閉板（Ａ）の位置Ｌ
ｌ付近に到達すると鋼板後端を距離■・ΔＴｂｌ だけ
縮閉するために時間Ｔｂ、−ΔＴｔ１で縮閉板駆動用シ
リンダ（１３）を作動させて縮閉板を開から閉に制御す
る。The steel plate advances further, and the rear end of the steel plate is at position L of the retractable plate (A).
When reaching the vicinity of 1, the retractable plate driving cylinder (13) is operated at a time Tb, -ΔTt1 to retract and close the rear end of the steel plate by a distance .DELTA.Tbl, thereby controlling the retractable plate from open to closed.
同様に鋼板後端が縮閉板（Ｂ）および（Ｄ）の位置し２
およびり、！付近に到達すると時間Ｔｂ２−ΔＴｂ２お
よびＴｂ４−ΔＴｂ４で縮閉板（Ｂ）および（Ｄ）を開
から閉に制御する。Similarly, the rear end of the steel plate is located at the retractable plates (B) and (D).
And,! When reaching the vicinity, the evolute plates (B) and (D) are controlled from open to closed at times Tb2-ΔTb2 and Tb4-ΔTb4.
最後に６４仮後端が冷却装置から抽出される時間Ｔｂｏ
で開状態のままの縮閉板（Ｃ）および（Ｅ）を開から閉
にする。Finally, the time Tbo when the 64 temporary rear end is extracted from the cooling device
Open and close the retractable plates (C) and (E), which are still open.
上記の説明では縮閉板（Ａ）〜（Ｅ）に鋼板上面用、下
面用の区別はつけていないが、例えば厚物等で上面のみ
の縮閉では効果が期待できない場合又は上、下共に設け
ることにより全体の縮閉板の数を減少させるために上、
下共に設置することも可能である。In the above explanation, there is no distinction made between the retractable plates (A) to (E) for the upper and lower surfaces of the steel plate. In order to reduce the overall number of closing plates by providing
It is also possible to install both at the bottom.
又縮閉板は冷却装置内の全てのロール間に設けなく′ζ
、ある間隔をあけて設けてもよく、あるいは特定ゾーン
に設けてもよい。Also, no shrinkage plates are provided between all the rolls in the cooling device.
, may be provided at certain intervals or may be provided in specific zones.
縮閉板のノズル孔は全開、全閉で説明したが、前後動の
距離を調整することによって任息に冷却液量を制御可能
である。Although the nozzle hole of the retractable plate has been described as fully open and fully closed, the amount of cooling liquid can be controlled as desired by adjusting the distance of forward and backward movement.
冷却液としては、水又は水に防錆剤を添加したものが用
いられる。As the coolant, water or water to which a rust preventive agent is added is used.
又、縮閉板（Ａ）、（Ｂ）、（Ｃ）、（Ｄ）。Also, retractable plates (A), (B), (C), (D).
（Ｅ’）の鋼板先端および後端縮閉の組合せおよび縮閉
距離ΔＴ・■は、熱鋼板のサイズ、冷却パターン、冷却
前温度パターン等によって冷却後鋼板の長手方向温度偏
差および形状が最良になるように制御される。The combination of the front and rear ends of the steel plate in (E') and the contraction distance ΔT・■ are determined by the size of the hot steel plate, the cooling pattern, the temperature pattern before cooling, etc., so that the longitudinal temperature deviation and shape of the steel plate after cooling are the best. controlled so that
本発明による効果を列挙すると以下の通りである。 The effects of the present invention are listed below.
＋１１ 鋼板全長にわたり均一な冷却ができる。+11 Uniform cooling can be achieved over the entire length of the steel plate.
（２）上記（１）により鋼板全長が均一な材質が得られ
る。(2) According to (1) above, a steel plate having a uniform overall length can be obtained.
（３） 上記（１）により鋼板全長にわたって良形状鋼
板が得られる。(3) According to (1) above, a steel plate with good shape can be obtained over the entire length of the steel plate.
第１図は従来タイプの近接スプレー型冷却装置の説明図
、第２図は板上水高さとスプレー衝突圧の関係図、第３
図は本発明の熱鋼板冷却装置の全体構成図、第４図はス
プレー縮閉装置の断面図、第５図は縮閉板および縮閉板
駆動用シリンダの平面図、第６図は縮閉板の開および閉
状態の説明図、第７図は冷却演算制御装置の構成の一例
を示す図、第８図は縮閉板制御説明用タイムチャートで
ある。
１１ 熱鋼板 （２）ｔａ送用ロール
（３）対向押えロール （４） スプレーノズル（５）
板上水 （６）冷却装置
（７）ヘソグー （８） Ｇｆ４板進入検出器（９）鋼
板温度計 ００）スプレー縮閉装置（１１）エプロン
（１２）縮閉板
（１３）縮閉板駆動用シリンダ
（１４）突起
（１５）鋼板パスライン
（１６）エプロンのスプレー用孔
（１７）縮閉板のスプレー用孔
（２０）冷却制御機構
（２１）縮閉板制御演算機構
（２２）縮閉板オンオフタイミング制御機構（２３）鋼
板位置トラッキング管理機構（２４）縮閉板作動実績管
理機構
特許出願人 新日本１ｉ！鐵株式會社
代理人 手掘 益（ほか２名）
第 １１１
第２０
捺上末高之（Ｈ）
ム】６０
（ａ） （ｂ）
第 ７ １３Figure 1 is an explanatory diagram of a conventional type of proximity spray cooling device, Figure 2 is a diagram of the relationship between the water height above the plate and the spray impingement pressure, and Figure 3
The figure is an overall configuration diagram of the hot steel plate cooling device of the present invention, FIG. 4 is a sectional view of the spray closure device, FIG. 5 is a plan view of the closure plate and the cylinder for driving the closure plate, and FIG. 6 is the closure diagram. FIG. 7 is a diagram showing an example of the configuration of the cooling arithmetic and control device, and FIG. 8 is a time chart for explaining the evolute plate control. 11 Heat steel plate (2) TA feed roll (3) Opposing presser roll (4) Spray nozzle (5)
Plate water (6) Cooling device (7) Hesogu (8) Gf4 plate entry detector (9) Steel plate thermometer 00) Spray condensation device (11) Apron
(12) Retraction plate (13) Retraction plate drive cylinder (14) Protrusion (15) Steel plate pass line (16) Apron spray hole (17) Retraction plate spray hole (20) Cooling control mechanism ( 21) Retraction plate control calculation mechanism (22) Retraction plate on/off timing control mechanism (23) Steel plate position tracking management mechanism (24) Retraction plate operation performance management mechanism Patent applicant Shin Nippon 1i! Steel Corporation Agent Masu Tegori (and 2 others) No. 111 No. 20 Takayuki Ushiage (H) Mu]60 (a) (b) No. 7 13
Claims (1)
る方法において、 ロール間の上方および／又は下方に冷却液通過量の制御
手段を設け、さらに該熱鋼板の通過位置検知手段と冷却
演算制御手段を設け、移動中の該熱鋼板の先端部および
／又は後端部が通過しようとする位置の冷却液の通過量
を制御することを特徴とする熱鋼板の冷却方法。 ２、 熱鋼板の搬送ラインの搬送用ローラテーブルの上
方の対になる位置に複数個の押えロールを配置し、該押
えロール間の上下にメ：！シ鋼板冷却用ノズルを配置し
た熱鋼板冷却装置において、該ノズルと核熱鋼板のパス
ライン間の上および／又は下に、該ノズルからの冷却液
量を制御する遮閉坂を該熱鋼板の進行方向と直角方向に
進退自在に取り付け、進退距離制御機構を設けて該遮閉
板と接続し、熱鋼板検出器と冷却演算制御装置を設けて
接続し、かつ該冷却演算制御装置と咳遮閉板の進退距離
制御ｉ機構とを接続したことを特徴とする熱鋼板の冷却
装置。[Claims] 1. In a method of injecting liquid into a heated steel plate while pressing it from above and below with rolls, a means for controlling the amount of cooling liquid passing is provided above and/or below between the rolls, and furthermore, a means for controlling the amount of cooling liquid passing through the heated steel plate is provided above and/or below between the rolls. Cooling of a hot steel plate, characterized in that a position detection means and a cooling calculation control means are provided, and the amount of cooling liquid passing through a position where the leading end and/or rear end of the moving hot steel sheet is to be passed is controlled. Method. 2. A plurality of presser rolls are arranged at paired positions above the conveyor roller table of the hot steel plate conveyor line, and there are mechanisms above and below between the presser rolls. In a hot steel plate cooling device equipped with a nozzle for cooling a nuclear hot steel plate, a shielding slope for controlling the amount of cooling liquid from the nozzle is placed above and/or below between the nozzle and the pass line of the nuclear hot steel plate. It is attached so that it can move forward and backward in a direction perpendicular to the direction of travel, is provided with an advance/retreat distance control mechanism and connected to the shield plate, is provided with a hot steel plate detector and a cooling calculation control device, and is connected to the cooling calculation control device and the cough shield. A cooling device for a hot steel plate, characterized in that it is connected to an i-mechanism for controlling the advancing and retreating distance of a closing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58149963A JPS6043435A (en) | 1983-08-17 | 1983-08-17 | Method and device for cooling hot-rolled steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58149963A JPS6043435A (en) | 1983-08-17 | 1983-08-17 | Method and device for cooling hot-rolled steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6043435A true JPS6043435A (en) | 1985-03-08 |
| JPS631376B2 JPS631376B2 (en) | 1988-01-12 |
Family
ID=15486429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58149963A Granted JPS6043435A (en) | 1983-08-17 | 1983-08-17 | Method and device for cooling hot-rolled steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003026813A1 (en) * | 2001-09-21 | 2003-04-03 | Jfe Steel Corporation | Method and device for cooling steel sheet |
| EP1925373A1 (en) * | 2006-08-18 | 2008-05-28 | Nippon Steel Corporation | Method of cooling steel sheet |
| CN111069308A (en) * | 2019-12-09 | 2020-04-28 | 北京科技大学 | Method for improving on-line accelerated cooling uniformity of medium plate |
-
1983
- 1983-08-17 JP JP58149963A patent/JPS6043435A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003026813A1 (en) * | 2001-09-21 | 2003-04-03 | Jfe Steel Corporation | Method and device for cooling steel sheet |
| EP1428589A1 (en) * | 2001-09-21 | 2004-06-16 | JFE Steel Corporation | Method and device for cooling steel sheet |
| EP1428589A4 (en) * | 2001-09-21 | 2005-08-10 | Jfe Steel Corp | Method and device for cooling steel sheet |
| US7294215B2 (en) | 2001-09-21 | 2007-11-13 | Jfe Steel Corporation | Method and device for cooling steel sheet |
| JP4678112B2 (en) * | 2001-09-21 | 2011-04-27 | Ｊｆｅスチール株式会社 | Steel plate cooling method and apparatus |
| EP1925373A1 (en) * | 2006-08-18 | 2008-05-28 | Nippon Steel Corporation | Method of cooling steel sheet |
| EP1925373A4 (en) * | 2006-08-18 | 2008-08-27 | Nippon Steel Corp | Method of cooling steel sheet |
| KR100882931B1 (en) | 2006-08-18 | 2009-02-10 | 신닛뽄세이테쯔 카부시키카이샤 | Method of cooling steel sheet |
| US8282747B2 (en) | 2006-08-18 | 2012-10-09 | Nippon Steel Corporation | Cooling method of steel plate |
| CN111069308A (en) * | 2019-12-09 | 2020-04-28 | 北京科技大学 | Method for improving on-line accelerated cooling uniformity of medium plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS631376B2 (en) | 1988-01-12 |
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