JP2785437B2 - Slab width reduction method and apparatus - Google Patents
Slab width reduction method and apparatusInfo
- Publication number
- JP2785437B2 JP2785437B2 JP2100754A JP10075490A JP2785437B2 JP 2785437 B2 JP2785437 B2 JP 2785437B2 JP 2100754 A JP2100754 A JP 2100754A JP 10075490 A JP10075490 A JP 10075490A JP 2785437 B2 JP2785437 B2 JP 2785437B2
- Authority
- JP
- Japan
- Prior art keywords
- width
- slab
- mold
- compression
- camber
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 230000006835 compression Effects 0.000 claims description 38
- 238000007906 compression Methods 0.000 claims description 38
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 4
- 238000009749 continuous casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000465 moulding 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
-
- 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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/024—Forging or pressing
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は連続鋳造設備等により製造されるスラブの幅
圧下方法及び装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for reducing the width of a slab manufactured by a continuous casting facility or the like.
［従来の技術］ 連続鋳造等により製造された高温のスラブを、幅プレ
スによりスラブ全長にわたって連続的に幅圧下成形する
と、スラブにスラブ搬送ラインの側方に湾曲する曲り
（以下、キャンバと呼称する）が生じることがある。[Related Art] When a high-temperature slab manufactured by continuous casting or the like is continuously width-press-molded over the entire length of the slab by a width press, the slab is bent to the side of a slab conveyance line (hereinafter referred to as a camber). ) May occur.
スラブにキャンバが生じる原因は種々あるが、スラブ
に起因するもののひとつとして、スラブ幅方向における
温度分布の不均一さがあげられる。There are various causes of camber in the slab. One of the causes of the camber is uneven temperature distribution in the slab width direction.
以下、スラブ幅方向における温度分布の不均一さか
ら、幅圧下成形されるスラブにキャンバが生じる要因
を、第４図、第５図により説明する。Hereinafter, the cause of the occurrence of camber in the slab formed by width reduction due to the unevenness of the temperature distribution in the slab width direction will be described with reference to FIGS. 4 and 5. FIG.
第４図に示す如く、スラブ３の側面3aに対し平行な幅
圧下面1a,1a及び該幅圧下面1a,2aから搬送ラインＳ方向
上流側へ向けて広がる傾斜面1b,2bを有し且つスラブ３
の搬送ラインＳを中心に対向配置された互いに近接、離
反可能な一対の左右金型1,2により、高温（温度の変化
に伴い耐力変化の大きい範囲例えば500℃〜700℃の範
囲）のスラブ３をその全長にわたって順次幅圧下成形す
る際に、たとえば、スラブ３の一方の幅方向端部４近傍
が温度t1、他方の幅方向端部５近傍が温度t2（t1＞t2）
で、スラブ３の幅方向における温度分布が、第５図に示
す如く、幅方向端部５側から幅方向端部４側に向って温
度が略徐々に高くなる状態であると、スラブ３の耐力
は、幅方向端部４側のほうが幅方向端部５側よりも小さ
くなっている。As shown in FIG. 4, there are width pressing lower surfaces 1a, 1a parallel to the side surfaces 3a of the slab 3, and inclined surfaces 1b, 2b extending from the width pressing lower surfaces 1a, 2a toward the upstream side in the conveying line S direction, and Slab 3
A pair of left and right dies 1 and 2 which are opposed to and separated from each other with the transfer line S as a center, and have a high temperature (a range in which the proof stress changes greatly with a change in temperature, for example, a range of 500 ° C to 700 ° C). When the width of the slab 3 is sequentially reduced over its entire length, for example, the temperature near the one end 4 in the width direction of the slab 3 is temperature t 1 , and the temperature near the other end 5 in the width direction is temperature t 2 (t 1 > t 2 ).
When the temperature distribution in the width direction of the slab 3 is in a state where the temperature is gradually gradually increased from the width direction end 5 side to the width direction end 4 side as shown in FIG. The proof stress is smaller at the width direction end 4 side than at the width direction end 5 side.
このように、スラブ幅方向中心線X0に対して左右の温
度分布が不均一なスラブを全長にわたって前記金型1,2
により、幅圧下成形前の幅寸法W0から所定の幅寸法W1に
順次幅圧下成形すると、前述した如く、スラブ３の各幅
方向端部4,5側で耐力が異なるため、本来ならば同じで
あるはずの左右幅方向端部4,5の幅圧縮量に差が生じ、
幅方向端部４の幅圧縮量λ1が幅方向端部５の幅圧縮量
λ2よりも大きくなってスラブ３は全体的に金型１側へ
押し出され、スラブ３の幅圧下成形された部分のスラブ
幅方向中心線X1は幅圧下成形前のスラブ幅方向中心線X0
よりも前記幅圧縮量λ1，λ2の差の半分の値であるｅだ
け金型１側へ偏位すると共に、幅方向端部４の搬送ライ
ンＳ方向の伸びが幅方向端部５の搬送ラインＳ方向の伸
びよりも大きくなってその差が曲げ力としてスラブ３に
作用することになり、スラブ３に金型２を支点としてス
ラブ３先端部が金型２側へ湾曲するキャンバが生じる。Thus, the mold temperature distribution of the right and left over the entire length of the non-uniform slab with respect to the slab width direction center line X 0 1, 2
Accordingly, when the sequentially width reduction molded from the width W 0 of the front width reduction molded into a predetermined width W 1, as mentioned above, because the yield strength is different at each widthwise end portions 4, 5 side of the slab 3, would otherwise There is a difference in the width compression amount of the left and right width direction ends 4, 5 which should be the same
When the width compression amount λ 1 of the width direction end 4 becomes larger than the width compression amount λ 2 of the width direction end 5, the slab 3 is entirely extruded toward the mold 1, and the slab 3 is subjected to width reduction molding. The slab width direction center line X 1 of the portion is the slab width direction center line X 0 before width reduction forming.
Than the width compression amount λ 1 , λ 2 , which is a half of the difference between the width compression amounts λ 1 and λ 2 , and the width direction end 4 extends in the conveying line S direction at the width direction end 5. The difference becomes larger than the elongation in the direction of the transport line S, and the difference acts on the slab 3 as a bending force. .
従来、スラブに生じるキャンバを制御する手段とし
て、特開昭61−222602号公報に開示されたものがある。Conventionally, as a means for controlling a camber generated in a slab, there is one disclosed in Japanese Patent Application Laid-Open No. 61-222602.
以下、第６図により上記先行技術の概要を説明する
と、スラブ搬送ラインＳを中心に対向配置された互いに
近接離反可能な一対の左右金型1,2の下流側に、スラブ
３を上下方向から挟持するピンチロール６を、水平面内
を回動し得るよう支持し、角度設定信号７に応じてスラ
ブ３の幅方向に対するピンチロチール６の軸線Ｙの角度
θを調整するための駆動装置８を、前記金型１の下流側
に設けている。In the following, the outline of the above-mentioned prior art will be described with reference to FIG. 6. The driving device 8 for supporting the pinch roll 6 to be held so as to be rotatable in a horizontal plane, and adjusting the angle θ of the axis Y of the pinch rotille 6 with respect to the width direction of the slab 3 according to the angle setting signal 7, It is provided downstream of the mold 1.
前記ピンチロール６の下流側に、スラブ３の幅方向端
部４の偏位を検出して位置検出信号９を出力するキャン
バ検出器10を配設し、その位置検出信号９を角度設定器
11に導くようにすると共に、該角度設定器11が位置検出
信号９に基づいて演算した角度設定信号７を前記駆動装
置８に導くようになっている。Downstream of the pinch roll 6, a camber detector 10 for detecting a deviation of the widthwise end 4 of the slab 3 and outputting a position detection signal 9 is provided, and the position detection signal 9 is converted to an angle setting device.
In addition, the angle setting device 11 guides the angle setting signal 7 calculated based on the position detection signal 9 to the driving device 8.
なお、図中12は金型1,2の上流側に設けたピンチロー
ルを示している。In the drawing, reference numeral 12 denotes a pinch roll provided on the upstream side of the dies 1 and 2.
上記従来装置において、スラブ３を幅圧下成形中に、
たとえば、スラブ３に金型２側へ湾曲するキャンバが生
じると、スラブ３の幅方向端部４の偏位をキャンバ検出
器10が検出して角度設定器11へ位置検出信号９が出力さ
れ、更に角度設定器11から駆動装置８へ角度設定信号７
が出力されて駆動装置８が作動し、ピンチロール６は、
スラブ３を挟持した状態で、ピンチロール６の金型１側
端部が金型１へ近接し且つ金型２側端部が金型２に対し
て離反するように回動して、スラブ３のピンチロール６
下流側に位置する部分を金型１側へ曲げ、スラブ３に生
じたキャンバを強制的に修正する。In the above-described conventional apparatus, the slab 3 is formed during width reduction forming.
For example, when a camber curving toward the mold 2 side occurs in the slab 3, the camber detector 10 detects the deviation of the width direction end 4 of the slab 3 and outputs the position detection signal 9 to the angle setting device 11. Further, the angle setting signal 11 is sent from the angle setting device 11 to the driving device 8.
Is output and the driving device 8 operates, and the pinch roll 6
With the slab 3 sandwiched, the pinch roll 6 rotates so that the end of the pinch roll 6 on the mold 1 approaches the mold 1 and the end of the pinch roll 6 on the mold 2 is separated from the mold 2, and the slab 3 is rotated. Pinch roll 6
The portion located on the downstream side is bent toward the mold 1, and the camber generated in the slab 3 is forcibly corrected.
又、特開昭62−192222号公報には、金型の下流側に設
置したキャンバ検出器によりスラブのキャンバ量を検出
し、該キャンバ量に基づいて左右金型の少なくとも一方
をスラブの搬送ライン方向に移動させて該左右金型の荷
重点を変え出側のキャンバを修正しながら幅圧下する方
法が開示されている。Japanese Patent Application Laid-Open No. 62-192222 discloses that a camber amount of a slab is detected by a camber detector installed on a downstream side of a mold, and at least one of right and left molds is transferred to a slab transfer line based on the camber amount. A method of changing the load point of the left and right dies by moving the right and left molds to correct the camber on the outlet side and reducing the width is disclosed.
［発明が解決しようとする課題］ しかしながら、前述の特開昭61−222602号公報に開示
された装置においては、ピンチロール６によりスラブ３
を挟持した状態でピンチロール６の向きを変え、スラブ
３に生じたキャンバを強制的に修正するので、スラブ３
の上下面に傷が付くと共に、向き変更可能なピンチロー
ル６の如きキャンバ修正装置が必要となるという問題点
があった。[Problem to be Solved by the Invention] However, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 61-222602, the slab 3 is pinched by the pinch roll 6.
The pinch roll 6 is turned in the state of holding the slab 3 and the camber generated in the slab 3 is forcibly corrected.
There is a problem that the upper and lower surfaces are damaged and a camber correcting device such as a pinch roll 6 whose direction can be changed is required.
又、特開昭62−192222号公報に開示されたものでは、
金型の下流側においてスラブにキャンバが発生した場合
にキャンバが発生しなくなるよう左右金型の荷重点を変
更するようにしているため、既に発生してしまったキャ
ンバについては修正を行うことは不可能であった。Also, in the one disclosed in JP-A-62-192222,
When the camber is generated in the slab downstream of the mold, the load points of the left and right molds are changed so that the camber does not occur.Therefore, it is impossible to correct the camber that has already occurred. It was possible.
本発明は斯かる実情に鑑み、スラブにキャンバが生じ
るのを未然に防止し得、特別なキャンバ修正装置により
キャンバを強制的に修正しなくて済むスラブの幅圧下方
法及び装置を提供しようとするものである。In view of such circumstances, the present invention aims to provide a slab width reduction method and apparatus that can prevent camber from occurring in a slab and do not need to forcibly correct the camber with a special camber correction device. Things.
［課題を解決するための手段］ 本方法発明は、スラブの左右両幅方向端部の幅圧縮量
を幅端位置検出器によって検出し、該幅圧縮量に基づい
て、スラブの側面に対し平行な幅圧下面及び該幅圧下面
から搬送ライン方向上流側へ向けて広がる傾斜面を有す
る左右一対の金型のうち少なくとも一方の金型を、該金
型の傾斜圧縮範囲全部が他方の金型の傾斜圧縮範囲の一
部と対向し且つ他方の金型の幅圧下面の圧縮範囲が一方
の金型の幅圧下面の一部と対向する範囲内で搬送ライン
方向へ移動させ幅圧下を行うことを特徴とするスラブの
幅圧下方法にかかるものである。Means for Solving the Problems According to the present invention, a width compression amount at both left and right width direction ends of a slab is detected by a width end position detector, and based on the width compression amount, a width of the slab is parallel to a side surface of the slab. At least one of a pair of left and right dies having a wide width lower surface and a sloping surface extending from the width lower surface toward the upstream side in the transport line direction. Is moved in the direction of the conveying line within the range in which the compression range of the width-pressed lower surface of the other mold opposes a part of the inclined compression range of the other mold and faces the part of the width-pressed lower surface of the other mold. The present invention relates to a method for reducing the width of a slab characterized by the above.
又、本装置発明は、スラブを挟んで近接、離反可能に
対向配置された一対のスライドの夫々に、スラブの側面
に対し平行な幅圧下面及び該幅圧下面から搬送ライン方
向上流側へ向けて広がる傾斜面を有する金型を、少なく
とも一方の金型が搬送ライン方向に移動可能となるよう
装着すると共に、前記金型のうち少なくとも一方の金型
を搬送ライン方向に移動せしめ得るシフト装置を設け、
前記金型によるスラブの左右両幅方向端部の幅圧縮量を
検出する幅端位置検出器を設け、且つ該幅端位置検出器
からの検出信号に基づき少なくとも一方の金型の搬送ラ
イン方向の移動量を演算し前記シフト装置に駆動信号を
出力する制御装置を設けたことを特徴とするスラブの幅
圧下装置にかかるものである。The present invention also provides a width-pressed lower surface parallel to the side surface of the slab and an upstream from the width-pressed lower surface in the conveying line direction on each of a pair of slides that are opposed to each other with the slab sandwiched therebetween. A shift device capable of mounting a mold having an inclined surface that spreads out so that at least one of the molds is movable in the direction of the transport line and moving at least one of the molds in the direction of the transport line. Provided,
A width end position detector for detecting a width compression amount of both left and right width direction ends of the slab by the mold is provided, and at least one of the dies is moved in a conveying line direction based on a detection signal from the width end position detector. A slab width reduction device is provided with a control device for calculating a movement amount and outputting a drive signal to the shift device.
［作用］ 本発明のスラブの幅圧下方法においては、スラブの左
右両幅方向端部の幅圧縮量が幅端位置検出器によって検
出され、該幅圧縮量に基づいて、左右一対の金型のうち
少なくとも一方の金型を、該金型の傾斜圧縮範囲全部が
他方の金型の傾斜圧縮範囲の一部と対向し且つ他方の金
型の幅圧下面の圧縮範囲が一方の金型の幅圧下面の一部
と対向する範囲内で搬送ライン方向へ移動させ幅圧下が
行われるため、スラブの左右幅方向端部の搬送ライン方
向の伸びが均等化され、スラブの幅方向における温度分
布の不均一さに起因するキャンバが生じることがない。[Operation] In the method for reducing the width of a slab according to the present invention, the width compression amount at both left and right width direction ends of the slab is detected by a width end position detector, and based on the width compression amount, a pair of left and right dies is formed. At least one of the molds, the entire inclined compression range of the mold is opposed to a part of the inclined compression range of the other mold, and the compression range of the width-pressed lower surface of the other mold is the width of one mold. Since the slab is moved in the direction of the conveying line within the area opposed to a part of the pressing surface and the width is reduced, the slabs in the left and right width direction ends are evenly stretched in the conveying line direction, and the temperature distribution in the slab width direction is reduced. There is no camber caused by unevenness.
又、本発明のスラブの幅圧下装置においては、スラブ
の左右両幅方向端部の幅圧縮量が幅端位置検出器によっ
て検出され、該幅端位置検出器からの検出信号に基づき
制御装置により少なくとも一方の金型の搬送ライン方向
の移動量が演算されてシフト装置に駆動信号が出力さ
れ、該シフト装置により少なくとも一方の金型が、該金
型の傾斜圧縮範囲全部が他方の金型の傾斜圧縮範囲の一
部と対向し且つ他方の金型の幅圧下面の圧縮範囲が一方
の金型の幅圧下面の一部と対向する範囲内で搬送ライン
方向へ移動させられ幅圧下が行われるため、スラブの左
右幅方向端部の搬送ライン方向の伸びが均等化され、ス
ラブの幅方向における温度分布の不均一さに起因するキ
ャンバが生じることがない。Further, in the width reduction device of the slab of the present invention, the width compression amount of the left and right width direction ends of the slab is detected by the width end position detector, and the control device performs the operation based on the detection signal from the width end position detector. The amount of movement of at least one of the dies in the transport line direction is calculated and a drive signal is output to the shift device, and the shift device causes at least one of the dies to have the entire inclined compression range of the other dies. The compression range of the width lower surface of the other mold is opposed to a part of the inclined compression range and the compression range of the width reduction lower surface of the other mold is moved in the conveying line direction within the range opposing a part of the width compression lower surface of the one mold, and the width reduction is performed. Therefore, the elongation of the ends of the slabs in the left-right width direction in the transport line direction is equalized, and camber due to uneven temperature distribution in the slab width direction does not occur.
［実施例］ 以下、本発明の実施例を図面を参照しつつ説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図（イ）（ロ）〜第３図は本発明の方法を実施す
る装置の一例であり、スラブ３の搬送ラインＳを挟んで
スラブ３幅方向に互いに近接、離反可能に配設された一
対のスライド13,14のうち一方のスライド14と一体のボ
ルスタ16のスラブ３対峙面に、搬送ラインＳ方向に延び
る嵌合溝19を形成し、該嵌合溝19に、案内部20aと嵌合
部20bとからなる断面凸形状のガイドクランプ部材20の
嵌合部20bを、前記案内部20aがボルスタ16のスラブ３対
峙面から突出するよう嵌め込むと共に、該ガイドクラン
プ部材20の案内部20aに、金型ホルダ18を搬送ラインＳ
方向に摺動自在に嵌合せしめ、該金型ホルダ18のスラブ
３対峙面に、スラブ３の側面3aに対し平行な幅圧下面2a
及び該幅圧下面2aから搬送ラインＳ方向上流側へ向けて
広がる傾斜面2bを有する金型２を取り付け、更に、前記
ボルスタ16のスラブ３対峙面にシリンダ等のシフト装置
21を搬送ラインＳ方向に延びるよう配設すると共に、該
シフト装置21のロッド22先端を、前記金型ホルダ18から
張り出すブラケット23に連結する。FIGS. 1 (a) to 1 (b) to 3 show an example of an apparatus for carrying out the method of the present invention, which are arranged so as to be able to approach and separate from each other in the width direction of the slab 3 with the conveyance line S of the slab 3 interposed therebetween. A fitting groove 19 extending in the direction of the transport line S is formed on a surface of the bolster 16 facing the slab 3 integrated with one of the slides 13 and 14 of the pair of slides 13 and 14, and a guide portion 20 a is formed in the fitting groove 19. The fitting portion 20b of the guide clamp member 20 having a convex cross section and the fitting portion 20b is fitted so that the guide portion 20a protrudes from the surface of the bolster 16 facing the slab 3, and the guide portion of the guide clamp member 20 is provided. 20a, the mold holder 18 is transferred to the transfer line S
Slidably in the direction, and a width-pressing lower surface 2a parallel to the side surface 3a of the slab 3
And a mold 2 having an inclined surface 2b extending from the width-pressing lower surface 2a toward the upstream side in the conveying line S direction, and further, a shift device such as a cylinder on a surface of the bolster 16 facing the slab 3.
The shift device 21 is arranged so as to extend in the direction of the transport line S, and the tip of the rod 22 of the shift device 21 is connected to a bracket 23 that projects from the mold holder 18.
前記ガイドクランプ部材20の嵌合部20b背面所要位置
には、第３図に示す如く、前記ボルスタ16内部にスラブ
３幅方向に延びるよう配設されたシリンダ等の駆動装置
24のロッド25先端を連結してあり、金型1,2によりスラ
ブ３の幅圧下を行う場合にのみ、前記駆動装置24を収縮
させてガイドクランプ部材20をボルスタ16側へ引き込
み、前記金型ホルダ18をボルスタ16に密着させることに
よりがたつき等を防止し得る一方、金型２を搬送ライン
Ｓ方向へ移動させる際には、前記駆動装置24を伸長させ
てガイドクランプ部材20をボルスタ16から押し出す方向
に僅かに移動させてやれば、前記金型ホルダ18を前記シ
フト装置21によって容易に移動させることができるよう
にしてある。As shown in FIG. 3, a driving device such as a cylinder disposed inside the bolster 16 so as to extend in the width direction of the slab 3 is provided at a required position on the back surface of the fitting portion 20b of the guide clamp member 20.
Only when the width of the slab 3 is reduced by the dies 1 and 2, the end of the rod 25 is connected and the drive device 24 is contracted to pull the guide clamp member 20 to the bolster 16 side. While holding the holder 18 in close contact with the bolster 16 can prevent rattling or the like, when the mold 2 is moved in the direction of the transport line S, the driving device 24 is extended to guide the guide clamp member 20 to the bolster 16. The mold holder 18 can be easily moved by the shift device 21 by slightly moving the mold holder 18 in the direction in which the mold holder 18 is pushed out.
又、前記スラブ13,14のうち他方のスライド13と一体
のボルスタ15のスラブ３対峙面には、金型ホルダ17を固
着し、該金型ホルダ17のスラブ３対峙面に、スラブ３側
面3aに対し平行な幅圧下面1a及び該幅圧下面1aから搬送
ラインＳ方向上流側へ向けて広がる傾斜面1bを有する金
型１を取り付けてある。Further, a mold holder 17 is fixed to the slab 3 facing surface of the bolster 15 integrated with the other slide 13 of the slabs 13 and 14, and the slab 3 side surface 3a is fixed to the slab 3 facing surface of the mold holder 17. A mold 1 having a width-pressed lower surface 1a parallel thereto and an inclined surface 1b extending from the width-pressed lower surface 1a toward the upstream side in the transport line S direction is attached.
更に、前記金型1,2によるスラブ３の両幅方向端部4,5
の位置を検出して幅圧縮量λ1，λ2を検出可能な幅端位
置検出器26,27を、前記金型1,2の搬送ラインＳ方向上流
側に設け、該幅端位置検出器26,27からの検出信号28,29
に基づき前記金型２の搬送ラインＳ方向の基準位置から
の移動量Δｌを演算し前記シフト装置21に駆動信号31を
出力する制御装置30を設ける。Further, both widthwise ends 4,5 of the slab 3 by the molds 1,2 are used.
Are provided on the upstream side of the dies 1 and 2 in the conveying line S direction to detect the width compression amounts λ 1 and λ 2 by detecting the positions of the width end positions λ 1 and λ 2 . Detection signals from 26, 27 28, 29
And a control device 30 for calculating a movement amount Δl of the mold 2 from a reference position in the direction of the transport line S and outputting a drive signal 31 to the shift device 21.
次に、上記実施例の作動を説明する。 Next, the operation of the above embodiment will be described.
図示しないクランク軸等の駆動によりスライド13,14
をスラブ３幅方向に近接、離反せしめ、金型1,2により
スラブ１を幅圧下した際、スラブ３幅方向の温度分布の
不均一さに伴い第４図に示されるようにスラブ３の左右
両幅方向端部4,5の幅圧縮量λ1，λ2に差が生じた場
合、該幅圧縮量λ1，λ2が幅端位置検出器26,27によっ
て検出され、該幅端位置検出器26,27からの検出信号28,
29に基づき制御装置30により金型２の搬送ラインＳ方向
の基準位置からの移動量Δｌが演算されてシフト装置21
に駆動信号31が出力される。該シフト装置21に駆動信号
31が出力されると、前記スライド13,14が離反し再び近
接してくる間に、第３図に示す駆動装置24が伸長しガイ
ドクランプ部材20がボルスタ16から押し出される方向に
僅かに移動すると共に、前記金型ホルダ18が前記シフト
装置21の収縮動作によって、金型２の傾斜圧縮範囲B2全
部が金型１の傾斜圧縮範囲B1の一部と対向し且つ金型１
の幅圧下面1aの圧縮範囲A1が金型２の幅圧下面2aの一部
と対向する範囲内で、搬送ラインＳ方向上流側へ移動量
Δｌだけ移動し、再び前記駆動装置24が収縮してガイド
クランプ部材20がボルスタ16側へ引き込まれ、前記金型
ホルダ18がボルスタ16に密着した状態で、金型1,2によ
りスラブ３が第１図（イ）に示す如く幅圧下される。Slides 13 and 14 are driven by driving a crankshaft (not shown).
When the slab 1 is reduced in width by the molds 1 and 2 due to the unevenness of the temperature distribution in the slab 3 width direction, as shown in FIG. width compression of lambda 1 in both widthwise end portions 4 and 5, if the difference in lambda 2 is generated, the width compression of lambda 1, lambda 2 is detected by the width end position detector 26 and 27, the width end position Detection signals 28 from detectors 26 and 27,
The shift amount 21 is calculated by the control device 30 from the reference position of the mold 2 in the direction of the transport line S based on the shift amount 21 based on the control device 30.
The drive signal 31 is output to A drive signal is supplied to the shift device 21.
When 31 is output, while the slides 13 and 14 are separated and approach again, the drive device 24 shown in FIG. together, by the mold holder 18 is contracting operation of the shift device 21, a portion inclined compression range B 2 all mold 2 is inclined compression range B 1 of the mold 1 and the opposite and mold 1
In a portion within the opposing, moved by the moving amount Δl the conveying line S direction upstream side, said driving device 24 contracts again compressed range A 1 of width reduction surface 1a of the width reduction surface 2a of the mold 2 Then, the guide clamp member 20 is pulled toward the bolster 16 and the slab 3 is reduced in width by the dies 1 and 2 as shown in FIG. .
この結果、スラブ３の左右幅方向端部4,5の搬送ライ
ンＳ方向の伸びが均等化され、スラブ３の幅方向におけ
る温度分布の不均一さに起因するキャンバの発生を未然
に防止できると共に、特別なキャンバ修正装置によりキ
ャンバを強制的に修正する必要がなくなり、スラブ３の
上下面が傷付くことも防止できる。As a result, the left and right width direction ends 4 and 5 of the slab 3 are evenly stretched in the direction of the transport line S, so that camber due to uneven temperature distribution in the width direction of the slab 3 can be prevented from occurring. In addition, it is not necessary to forcibly correct the camber by using a special camber correction device, and it is possible to prevent the upper and lower surfaces of the slab 3 from being damaged.
この後、前記幅端位置検出器26,27によって検出され
る幅圧縮量λ1，λ2に変化がなければ、前記金型２は第
１図（ロ）に示す如く基準位置から搬送ラインＳ方向上
流側へ移動量Δｌだけ移動した位置に保持され、金型1,
2によりスラブ３の幅圧下が行われる。尚、第１図
（イ）（ロ）中、A2は金型２の幅圧下面2aの圧縮範囲を
示している。Thereafter, if there is no change in the width compression amounts λ 1 , λ 2 detected by the width edge position detectors 26, 27, the mold 2 is moved from the reference position to the transfer line S as shown in FIG. In the mold 1,
2 reduces the width of the slab 3. Incidentally, in FIG. 1 (b) (ii), A 2 represents the compression range of the width reduction surface 2a of the mold 2.
尚、本発明のスラブの幅圧下方法及び装置は、上述の
実施例にのみ限定されるものではなく、検出した幅圧縮
量λ1，λ2に基づいて金型２を搬送ラインＳ方向上流側
へ移動量Δｌだけ移動させる代りに、金型１を搬送ライ
ンＳ方向下流側へ移動量Δｌだけ移動させたり、或いは
金型1,2の両方を夫々搬送ラインＳ方向へ所要量ずつ移
動させるようにしてもよいこと、走間プレスにも適用可
能なこと等、その他、本発明の要旨を逸脱しない範囲内
において種々変更を加え得ることは勿論である。The method and apparatus for reducing the width of a slab of the present invention are not limited to the above-described embodiment, and the mold 2 is moved upstream in the transport line S direction based on the detected width compression amounts λ 1 and λ 2. Instead of moving the mold 1 by the moving amount Δl, the mold 1 is moved by the moving amount Δl downstream in the conveying line S, or both the dies 1 and 2 are moved by the required amount in the conveying line S direction. It goes without saying that various changes can be made without departing from the gist of the present invention, for example, the present invention may be applied to a running press.
［発明の効果］ 以上説明したように、本発明のスラブの幅圧下方法及
び装置によれば、下記の如き種々の優れた効果を奏し得
る。[Effects of the Invention] As described above, according to the slab width reduction method and apparatus of the present invention, the following various excellent effects can be obtained.
（１）本発明のスラブの幅圧下方法においては、スラブ
の幅方向における温度分布の不均一さに起因するキャン
バが生じることがない。(1) In the method for reducing the width of a slab according to the present invention, camber due to non-uniform temperature distribution in the width direction of the slab does not occur.
（２）本発明のスラブの幅圧下装置においては、スラブ
の幅方向における温度分布の不均一さに起因するキャン
バの発生を防止することができ、特別なキャンバ修正装
置によりキャンバを強制的に修正する必要がなくなるの
で、スラブの上下面が傷付くことがなく、また従来装置
に比べて装置の機械的構造を簡略化することができる。(2) In the slab width reduction device of the present invention, the occurrence of camber due to uneven temperature distribution in the width direction of the slab can be prevented, and the camber is forcibly corrected by a special camber correction device. Therefore, the upper and lower surfaces of the slab are not damaged, and the mechanical structure of the device can be simplified as compared with the conventional device.
第１図（イ）（ロ）は本発明の方法を実施する装置の一
例を示す平面図、第２図は第１図に示す装置の斜視図、
第３図はガイドクランプ部材の要部平断面図、第４図は
スラブの幅方向における温度分布の不均一さから幅圧下
成形されるスラブにキャンバが生じる要因を説明するた
めの平面図、第５図は第４図に示すスラブの幅方向にお
ける温度分布を示すグラフ、第６図は従来の幅圧下装置
の一例を示す平面配置図である。 1,2は金型、1a,2aは幅圧下面、1b,2bは傾斜面、３はス
ラブ、3aは側面、4,5は幅方向端部、13,14はスライド、
21はシフト装置、26,27は幅端位置検出器、28,29は検出
信号、30は制御装置、31は駆動信号、λ1，λ2は幅圧縮
量、Ｓは搬送ライン、A1，A2は圧縮範囲、B1，B2は傾斜
圧縮範囲を示す。1 (a) and 1 (b) are plan views showing an example of an apparatus for performing the method of the present invention, FIG. 2 is a perspective view of the apparatus shown in FIG. 1,
FIG. 3 is a plan cross-sectional view of a main part of the guide clamp member, and FIG. 4 is a plan view for explaining a factor that causes camber in a slab formed by width reduction due to uneven temperature distribution in the width direction of the slab. FIG. 5 is a graph showing the temperature distribution in the width direction of the slab shown in FIG. 4, and FIG. 6 is a plan view showing an example of a conventional width reduction device. 1, 2 is a mold, 1a, 2a is a width lower surface, 1b, 2b is an inclined surface, 3 is a slab, 3a is a side surface, 4, 5 is a width direction end, 13, 14 is a slide,
21 is a shift device, 26 and 27 are width end position detectors, 28 and 29 are detection signals, 30 is a control device, 31 is a drive signal, λ 1 and λ 2 are width compression amounts, S is a transport line, A 1 , A 2 indicates a compression range, and B 1 and B 2 indicate a gradient compression range.
Claims (2)
端位置検出器によって検出し、該幅圧縮量に基づいて、
スラブの側面に対し平行な幅圧下面及び該幅圧下面から
搬送ライン方向上流側へ向けて広がる傾斜面を有する左
右一対の金型のうち少なくとも一方の金型を、該金型の
傾斜圧縮範囲全部が他方の金型の傾斜圧縮範囲の一部と
対向し且つ他方の金型の幅圧下面の圧縮範囲が一方の金
型の幅圧下面の一部と対向する範囲内で搬送ライン方向
へ移動させ幅圧下を行うことを特徴とするスラブの幅圧
下方法。1. A width compression amount at both left and right width direction ends of a slab is detected by a width end position detector, and based on the width compression amount,
At least one of a pair of left and right molds having a width pressing lower surface parallel to the side surface of the slab and an inclined surface extending from the width pressing lower surface toward the upstream side in the transport line direction, the inclined compression range of the mold. The whole is opposed to a part of the inclined compression range of the other mold, and the compression range of the width-pressed lower surface of the other mold is opposed to a part of the width-pressed lower surface of the one mold in the conveying line direction. A width reduction method for a slab, which comprises moving the slab to reduce the width.
された一対のスライドの夫々に、スラブの側面に対し平
行な幅圧下面及び該幅圧下面から搬送ライン方向上流側
へ向けて広がる傾斜面を有する金型を、少なくとも一方
の金型が搬送ライン方向に移動可能となるよう装着する
と共に、前記金型のうち少なくとも一方の金型を搬送ラ
イン方向に移動せしめ得るシフト装置を設け、前記金型
によるスラブの左右両幅方向端部の幅圧縮量を検出する
幅端位置検出器を設け、且つ該幅端位置検出器からの検
出信号に基づき少なくとも一方の金型の搬送ライン方向
の移動量を演算し前記シフト装置に駆動信号を出力する
制御装置を設けたことを特徴とするスラブの幅圧下装
置。2. A widthwise lower surface parallel to a side surface of the slab and spreads from the widthwise lower surface toward an upstream side in a transport line direction on each of a pair of slides which are opposed to each other so as to be able to approach and separate from each other across the slab. A mold having an inclined surface is mounted so that at least one mold is movable in the transport line direction, and a shift device capable of moving at least one of the dies in the transport line direction is provided, A width end position detector for detecting a width compression amount of both left and right width direction ends of the slab by the mold is provided, and at least one of the dies is moved in a conveying line direction based on a detection signal from the width end position detector. A slab width reduction device provided with a control device for calculating a movement amount and outputting a drive signal to the shift device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100754A JP2785437B2 (en) | 1990-04-17 | 1990-04-17 | Slab width reduction method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100754A JP2785437B2 (en) | 1990-04-17 | 1990-04-17 | Slab width reduction method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03297501A JPH03297501A (en) | 1991-12-27 |
| JP2785437B2 true JP2785437B2 (en) | 1998-08-13 |
Family
ID=14282308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2100754A Expired - Fee Related JP2785437B2 (en) | 1990-04-17 | 1990-04-17 | Slab width reduction method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2785437B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI664033B (en) * | 2016-05-13 | 2019-07-01 | 日商新日鐵住金股份有限公司 | Method for edging and device for edging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62192222A (en) * | 1986-02-19 | 1987-08-22 | Ishikawajima Harima Heavy Ind Co Ltd | Method for width rolling reduction by press |
-
1990
- 1990-04-17 JP JP2100754A patent/JP2785437B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03297501A (en) | 1991-12-27 |
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