JPH0565242B2 - - Google Patents
Info
- Publication number
- JPH0565242B2 JPH0565242B2 JP28426486A JP28426486A JPH0565242B2 JP H0565242 B2 JPH0565242 B2 JP H0565242B2 JP 28426486 A JP28426486 A JP 28426486A JP 28426486 A JP28426486 A JP 28426486A JP H0565242 B2 JPH0565242 B2 JP H0565242B2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- width
- press tool
- tool
- press
- 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 - Fee Related
Links
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 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
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0035—Forging or pressing devices as units
- B21B15/005—Lubricating, cooling or heating means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
スラブ幅圧下装置は、近年来のホツトストリツ
プミルにおける省エネルギー、工程短縮などを意
図した連鋳スラブの幅を統合することによる連鋳
とホツトストリツプミルの同期化計画を推進する
ために不可欠である。スラブの幅を統合すると下
工程であるホツト粗圧延工程でスラブの幅を製品
幅に適合するまで大幅圧下することが必要だから
である。[Detailed Description of the Invention] (Industrial Application Field) The slab width reduction device is capable of continuous casting by unifying the width of continuous casting slabs intended for energy saving and process shortening in recent hot strip mills. Essential for promoting hot strip mill synchronization plans. This is because, if the widths of the slabs are integrated, it is necessary to significantly reduce the width of the slabs in the hot rough rolling process, which is the lower process, until it matches the width of the product.
（従来の技術）
特開昭59−101201号公報では下死点開度を一定
に保つて往復作動している対のプレス工具間にス
ラブを送り進め、その幅加撃衝面の傾斜部でスラ
ブの幅を徐々に減じつつ平行部で所定のスラブ幅
に大幅圧下する連続プレス法が提案されている。(Prior art) In Japanese Patent Application Laid-Open No. 59-101201, a slab is fed between a pair of press tools that reciprocate while keeping the opening degree of the bottom dead center constant. A continuous pressing method has been proposed in which the width of the slab is gradually reduced and the slab is significantly reduced to a predetermined width in the parallel section.
このような方法では、スラブを連続的に幅圧下
するために圧下工具温度が上昇する。当然ながら
工具を冷却するために冷却水をかけるのである
が、幅圧下中に具備を冷却するための冷却水がス
ラブにかかるため、特にスラブ幅端部の温度が低
下しこの部分の材質不良の原因となる。 In such a method, the temperature of the rolling tool increases in order to continuously roll down the width of the slab. Naturally, cooling water is applied to cool the tools, but since the cooling water used to cool the equipment during width reduction is applied to the slab, the temperature especially at the width end of the slab decreases, causing material defects in this area. Cause.
（発明が解決しようとする問題点）
上記のようなスラブの温度低下を防止するとと
もに圧下工具の温度上昇を防止することのできる
幅圧下装置を提供することがこの発明の目的であ
る。(Problems to be Solved by the Invention) It is an object of the present invention to provide a width rolling device that can prevent the temperature of the slab from decreasing as described above and also prevent the temperature of the rolling tool from increasing.
（問題点を解決するための手段）
対向するプレス工具によりスラブの幅端面を圧
下してスラブの幅を減少させるスラブ幅圧下装置
の、ある期間中幅圧下稼働に供したプレス工具を
控え位置に回転させた状態で冷却させ、この冷却
中にはすでに控え位置で十分冷却させたもう一組
みのプレス工具についても稼働位置に転回させる
ことによりスラブの幅圧下が継続できるプレス工
具のタレツト方式とすることにより、スラブの温
度低下を防ぎかつプレス工具の冷却を可能とす
る。(Means for solving the problem) During a certain period of time, the press tool used for the width reduction operation of the slab width reduction device that reduces the width of the slab by rolling down the width end face of the slab with the opposing press tool is moved to the standby position. A press tool turret method is used in which the slab is cooled while being rotated, and during this cooling, the other set of press tools, which have already been sufficiently cooled in the standby position, are rotated to the operating position so that width reduction of the slab can be continued. This prevents the temperature of the slab from decreasing and allows the press tool to be cooled.
すなわちこの発明は、幅圧下加工に供した熱ス
ラブの側面と向かい合う幅加撃衝面を有するアン
ビルのプレス工具を、その取付け台を介して熱ス
ラブに対し接近及び離隔の向きの作動を司る往復
駆動装置の可動ブロツクに装着して、該プレス工
具の進退工程反覆の間に該スラブをその長手方向
に送り進め乍ら、幅方向の逐次的圧下成形を行な
うスラブの幅圧下装置にして、上記工具を常備と
予備の組みにして上記取付け台に並装しこの取付
け台を駆動ブロツクに対し転向可能に軸支すると
ともに、常備のプレス工具の稼働中、非稼働位置
を占める予備のプレス工具の幅加撃衝面に冷却水
を噴射するノズルを配備して成ることを特徴とす
るスラブ幅圧下装置である。 In other words, the present invention provides a reciprocating drive for moving an anvil press tool, which has a width impact surface facing the side surface of a hot slab subjected to width reduction, toward and away from the hot slab through its mounting base. The tool is attached to a movable block of the device, and is used as a width reduction device for a slab, which performs successive reduction in the width direction while advancing the slab in its longitudinal direction during repeated advances and retreats of the press tool. A set of regular and spare press tools are arranged side by side on the above-mentioned mount, and this mount is rotatably supported on the drive block, and the width of the spare press tool which occupies the non-operating position while the regular press tool is in operation. This slab width reduction device is characterized by being equipped with a nozzle that injects cooling water onto the impact surface.
第１図、第２図にこの発明に従うスラブ幅圧下
装置の構成を図解した。 FIGS. 1 and 2 illustrate the structure of a slab width rolling device according to the present invention.
図中１は幅圧下加工中の熱スラブ、２ａ，２ｂ
は仮に常備と予備とに添字で区別した一組みの、
各左右一対よりなるプレス工具、３は一組みのプ
レス工具２ａ，２ｂを並装した取付け台、４は取
付け台３をプレス工具２ａ又は２ｂの幅加撃衝面
が熱スラブ１の側面つまり幅端面に対し接近及び
離隔の向きに作動させる往復駆動装置（図示せ
ず：機械式又は液圧式などのプレス機械）の可動
ブロツクであり、５はその伝動ロツド、また６は
予備のプレス工具２ｂの幅加撃衝面の放水冷却を
司るノズルであり、７はこの放水の飛沫が常備の
プレス工具２ａにかかるのを阻止する隔離板であ
る。 In the figure, 1 is the heated slab during width reduction processing, 2a, 2b
is a set of standing and spare parts separated by subscripts,
3 is a mounting base on which a pair of press tools 2a and 2b are arranged side by side, and 4 is a mounting base on which a pair of press tools 2a and 2b are mounted. 5 is a movable block of a reciprocating drive device (not shown: a press machine such as a mechanical type or a hydraulic type) that is operated toward and away from the press tool, and 5 is the transmission rod thereof, and 6 is the width of the spare press tool 2b. This is a nozzle that controls water spray cooling on the impact surface, and 7 is a separator plate that prevents droplets of this water spray from hitting the press tool 2a.
取付け台３は可動ブロツク４を貫通する枢軸
３′によつて軸受９に枢架、軸支し、プレス工具
２ａ，２ｂを常備、予備各位置に転向可能とす
る。 The mounting base 3 is pivoted and pivotally supported on a bearing 9 by a pivot shaft 3' passing through the movable block 4, so that the press tools 2a and 2b can be turned to either a permanent position or a standby position.
図中１０は取付け台３の可動ブロツク４に対す
る装着位置を確保する位置定めピン、１１は枢軸
３′に楔止めしたプーリ、１２は駆動プーリ、１
３は両プーリ間にかけ渡したベルト又はチエン、
１４はモーターであり、さらに１５はたとえば取
付け台４に穿つた凹溝と対応してプレス工具２
ａ，２ｂの背面に突設した落し込み突起をはめ合
わせるような固定手段、１６は取付け台４にプレ
ス工具２ａ，２ｂが脱落しないように支える支持
具である。 In the figure, 10 is a positioning pin that secures the mounting position of the mounting base 3 on the movable block 4, 11 is a pulley wedged on the pivot shaft 3', 12 is a drive pulley, 1
3 is a belt or chain stretched between both pulleys,
14 is a motor, and 15 is a press tool 2 corresponding to a groove bored in the mounting base 4, for example.
16 is a support that supports the press tools 2a, 2b so that they do not fall off on the mounting base 4.
なお図示例ではプレス工具２ａ，２ｂを別個の
部材とした場合を図解したが、熱スラブの厚みの
２倍をこえるサイズであれば一体物であつてもよ
い。 In the illustrated example, the press tools 2a and 2b are made into separate members, but they may be made into one piece as long as the size exceeds twice the thickness of the thermal slab.
（作用）
第３図に上述のスラブ幅圧下装置による熱スラ
ブ１の加工要領を図解したが、この点従来の方法
でも同様で、統合幅W0の熱スラブ１をプレス工
具２，２間に送り込む毎にプレス工具２，２を相
互近接させ目標スラブ幅W1を下死点開度として
作動させる。ここに入側から熱スラブ１をまず送
り込み、ついで入側傾斜部及びそれに続く工具底
面でスラブ幅を減少させる。１本のスラブは通常
４〜12ｍ程度であり、生産性を上げるために１本
のスラブの成形が完了し、次のスラブが成形開始
されるまでの時間間隔は最短では５〜10秒位に短
い。(Function) Fig. 3 illustrates the procedure for processing the hot slab 1 using the above-mentioned slab width reduction device, but this point is also the same with the conventional method, and the hot slab 1 with the integrated width W 0 is placed between the press tools 2 and 2. Each time the press tools are fed, the press tools 2, 2 are brought close to each other and operated with the target slab width W1 as the bottom dead center opening. The hot slab 1 is first fed into this from the entry side, and then the width of the slab is reduced at the entrance slope and the subsequent tool bottom. One slab is usually about 4 to 12 meters long, and in order to increase productivity, the time interval between the completion of molding of one slab and the start of molding of the next slab is at least 5 to 10 seconds. short.
スラブ温度は通常1000〜1300℃程度であるの
で、幅圧下中に工具温度は上昇する。 Since the slab temperature is usually about 1000 to 1300°C, the tool temperature increases during width reduction.
そこで、圧下工具温度上昇を抑制するために従
来から工具冷却が行なわれているが、その状況は
第４図に示すように幅圧下のはじまる前に工具の
圧下面を冷却するためノズル６′から冷却水をか
け続け、ここに熱スラブ１の側面と工具の間隔が
十分に開いている間は工具の冷却は可能である
が、圧下が開始されて第４図ｂの下死点に進む
間、冷却水は熱スラブ１のコーナー部にもかかり
この部分の温度が低下する。 Therefore, tool cooling has traditionally been carried out to suppress the rise in temperature of the rolling tool, but as shown in Figure 4, in order to cool the rolling surface of the tool before the width rolling begins, the tool is cooled from the nozzle 6'. It is possible to cool the tool as long as cooling water is continued to be applied and there is a sufficient gap between the side surface of the hot slab 1 and the tool, but until rolling starts and progresses to the bottom dead center in Figure 4b, , the cooling water is also applied to the corner part of the thermal slab 1, and the temperature of this part decreases.
連続幅プレスによるスラブ幅変更は、間欠的な
逐次鍛造方式であるために通常の非間欠プロセス
である竪ロール方式による幅変更よりもスラブの
成形時間が長く、従つてコーナー部の温度低下は
はるかに著しくなる。 Changing the width of a slab using a continuous width press is an intermittent sequential forging method, so it takes longer to form the slab than changing the width using a vertical roll method, which is a normal non-intermittent process, and the temperature at the corners is much lower. becomes noticeable.
これに反してこの発明では再び第１図を参照し
幅圧下用のプレス工具として、スラブ１の幅圧下
を行なう位置にある常備のプレス２ａと控え位置
にある予備のプレス工具２ｂを組みにして用い、
これらの工具は取付け台３の枢軸３′を中心に取
付け台３とともに転回することが可能であり、従
つてパスラインレベルＡ−Ａにある熱スラブ１は
常備のプレス工具２ａにより幅圧下され、このと
き控え位置には予備のプレス工具２ｂがプレス工
具２ａの下側にあつてノズル６からの高圧水噴射
により有効に冷却される。 On the other hand, in the present invention, referring again to FIG. 1, as a press tool for width reduction, a regular press 2a in a position for width reduction of the slab 1 and a spare press tool 2b in a standby position are combined. use,
These tools can rotate together with the mount 3 about the pivot 3' of the mount 3, so that the hot slab 1 at the pass line level A-A is rolled down in width by the regular press tool 2a, At this time, a spare press tool 2b is placed in the reserved position below the press tool 2a and is effectively cooled by high-pressure water jet from the nozzle 6.
このような構成で、控え位置で圧した工具を十
分冷却させておき、１本のスラブの成形が終わつ
たら取付け台３を転回させると、控え位置にあつ
た予備のプレス工具２ｂは圧下位置に転回移動
し、次のスラブの成形を行なう。 With this configuration, if the press tool 2b in the stand-up position is sufficiently cooled and the mounting base 3 is rotated after forming one slab, the spare press tool 2b that was in the hold-down position will be moved to the pull-down position. The next slab is formed.
この転回はモーター１４からプーリー１２、ベ
ルトまたはチエン１３を介して伝わる回転力によ
り回転軸３′に固定されたプーリー１１が回転し
て取付け台３を回転させる。なお、回転機構はこ
の方法に限定するものではない。 In this rotation, the pulley 11 fixed to the rotating shaft 3' rotates due to the rotational force transmitted from the motor 14 via the pulley 12, belt or chain 13, and the mounting base 3 is rotated. Note that the rotation mechanism is not limited to this method.
（実施例）
来方法に従い一組みだけのプレス工具を用いて
これに水冷を施し乍ら幅圧下を行なう場合は、厚
み220mm、之幅1300mm、幅圧下代200mmのとき、熱
スラブ１の温度低下がほぼ120℃にも達していた
のに対してこの発明によれば事実上の温度低下な
しに幅圧下加工をすることができた。(Example) When performing width reduction while water cooling using only one set of press tools according to the conventional method, the temperature of hot slab 1 will decrease when the thickness is 220 mm, the width is 1300 mm, and the width reduction is 200 mm. However, according to the present invention, it was possible to carry out width reduction processing without virtually reducing the temperature.
（発明の効果）
この発明では控え位置で非稼働中のプレス工具
の冷却が十分に行なえるので幅圧下位置で稼働時
には圧下工具面を強冷却をする必要がないのでス
ラブコーナー部がこの冷却水で冷えることがなく
なる。(Effect of the invention) In this invention, since the press tool which is not in operation can be sufficiently cooled at the stand-by position, there is no need to strongly cool down the rolling tool surface when it is operating at the width reduction position, so that the cooling water can be used at the slab corner. You won't get cold anymore.
第１図、第２図は、この発明によるスラブ幅圧
下装置の要部の断面図と側面図、第３図は連続幅
圧下要領の説明図であり、第４図は従来のプレス
工具冷却に伴う難点の説明図である。
１……熱スラブ、２ａ，２ｂ……プレス工具、
３……工具取付け台、４……可動ブロツク。
1 and 2 are a sectional view and a side view of the main parts of the slab width reduction device according to the present invention, FIG. 3 is an explanatory diagram of the continuous width reduction method, and FIG. 4 is a diagram showing the conventional press tool cooling method. It is an explanatory diagram of the accompanying difficulty. 1... Heat slab, 2a, 2b... Press tool,
3... Tool mounting stand, 4... Movable block.
Claims (1)
合う幅加撃衝面を有するアンビル状のプレス工具
を、その取付け台を介して熱スラブに対し接近及
び離隔の向きの作動を司る往復駆動装置の可動ブ
ロツクに装着して、該プレス工具の進退工程反覆
の間に該スラブをその長手方向に送り進め乍ら、
幅方向の逐次的圧下成形を行うスラブの幅圧下装
置にして、 上記工具を常備と予備の組みにして上記取付け
台に並装しこの取付け台を駆動ブロツクに対し転
向可能に軸支するとともに、常備のプレス工具の
稼働中、非稼働位置を占める予備のプレス工具の
幅加撃衝面に冷却水を噴射するノズルを配備して
成ること を特徴とするスラブ幅圧下装置。[Claims] 1. An anvil-shaped press tool having a width impact surface facing the side surface of a hot slab subjected to width reduction is operated in the direction of approaching and separating from the hot slab via its mounting base. The press tool is attached to a movable block of a reciprocating drive that controls the pressing tool, and while the slab is being fed in its longitudinal direction during the repetition of the advancing and retreating steps of the press tool,
A width reduction device for slabs that performs sequential reduction forming in the width direction, the above-mentioned tools are set as a permanent set and a spare set and are arranged side by side on the above-mentioned mount, and this mount is rotatably supported with respect to the drive block, A slab width reduction device characterized by being equipped with a nozzle that injects cooling water onto the width impact surface of a spare press tool that occupies a non-operating position while the regular press tool is in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28426486A JPS63140711A (en) | 1986-12-01 | 1986-12-01 | Edging device for slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28426486A JPS63140711A (en) | 1986-12-01 | 1986-12-01 | Edging device for slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140711A JPS63140711A (en) | 1988-06-13 |
| JPH0565242B2 true JPH0565242B2 (en) | 1993-09-17 |
Family
ID=17676275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28426486A Granted JPS63140711A (en) | 1986-12-01 | 1986-12-01 | Edging device for slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63140711A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW340067B (en) * | 1996-11-13 | 1998-09-11 | Ishikawajima Harima Heavy Ind | Rolled strip joining device and a hot strip mill having such a device |
-
1986
- 1986-12-01 JP JP28426486A patent/JPS63140711A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140711A (en) | 1988-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |