JPH0790241B2 - Rolling method for bar steel - Google Patents
Rolling method for bar steelInfo
- Publication number
- JPH0790241B2 JPH0790241B2 JP22716389A JP22716389A JPH0790241B2 JP H0790241 B2 JPH0790241 B2 JP H0790241B2 JP 22716389 A JP22716389 A JP 22716389A JP 22716389 A JP22716389 A JP 22716389A JP H0790241 B2 JPH0790241 B2 JP H0790241B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- rolling mill
- trough
- carry
- steel
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims description 88
- 229910000831 Steel Inorganic materials 0.000 title claims description 40
- 239000010959 steel Substances 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 18
- 239000000463 material Substances 0.000 claims description 64
- 238000001816 cooling Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance 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
- B21B15/0007—Cutting or shearing the product
-
- 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- 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
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
- B21B43/003—Transfer to bed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、冷却床への条鋼搬入トラフまたは搬入ロー
ラーテーブル入口で圧延材にトラブルが発生した時、ト
ラブルを自動的に検知し、圧延材をコブルカッティング
して圧延機への圧延材の噛込みを中断してミスロールの
発生量を低減させる条鋼の圧延方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention detects a trouble automatically in a rolled material at the entrance of a steel strip carry-in trough or a carry-in roller table to a cooling floor, and automatically detects the trouble, and The present invention relates to a method for rolling a strip steel in which cobble cutting is performed to interrupt the biting of the rolled material into the rolling mill to reduce the amount of misrolls.
［従来技術］ 条鋼の圧延は、通常第５図のような設備配置にて行なわ
れる。すなわち、条鋼圧延用のビレットは、加熱炉21で
加熱される。そして、加熱されたビレットは、粗圧延機
22、中間圧延機23および仕上圧延機24の順に圧延されて
最終製品の断面形状となる。次いで仕上圧延機24の後方
に配置した分割シヤー25で100m程度の長さごとに切断さ
れた後、冷却床26に搬入される。冷却床26において前記
切断された長尺条鋼27は、レッヘン28により冷却床26の
出口方向に移送され、アラインメントローラ29により長
さ方向に送られて、ストッパ30に衝突させられ、長尺条
鋼27の先端が揃えられる。そして、冷却床26の搬出口に
設けたドライブローラ31により、長尺条鋼27は５〜100
本毎に冷却床26から搬出され、コールドシヤー32により
まとめて切断され、長さの揃った短尺条鋼33となる。な
お、粗圧延機22、中間圧延機23および仕上圧延機24の間
には、コブル切断用のフライングシヤー34を設けて、ト
ラブル発生時にコブルカッティングを行ない、圧延材の
圧延機への噛込みを中断して、大量のミスロール材が発
生しないようにしている。[Prior Art] Rolling of bar steel is usually performed with equipment arrangement as shown in FIG. That is, the billet for rolling steel strip is heated in the heating furnace 21. And the billet heated is the rough rolling mill.
22, the intermediate rolling mill 23, and the finish rolling mill 24 are rolled in this order to form the sectional shape of the final product. Next, after being cut by a split shear 25 arranged at the rear of the finish rolling mill 24 into lengths of about 100 m, the pieces are carried into the cooling floor 26. The long strip 27 cut in the cooling floor 26 is transferred to the exit of the cooling floor 26 by the regchen 28, is sent in the length direction by the alignment roller 29, and is collided with the stopper 30 to make the long strip 27 The tips of are aligned. And, by the drive roller 31 provided at the carry-out port of the cooling floor 26, the long strip 27 is
Each piece is carried out from the cooling floor 26, cut together by the cold shear 32, and becomes short strip steel 33 having a uniform length. In addition, between the rough rolling mill 22, the intermediate rolling mill 23 and the finish rolling mill 24, a flying shear 34 for cobble cutting is provided, and cobble cutting is performed when trouble occurs, and biting of the rolled material into the rolling mill is performed. It is suspended so that a large amount of misroll material is not generated.
ところで、冷却床26の入口には条鋼を冷却床26に搬入す
るための搬入テーブルまたは搬入トラフ35が設けられい
るが、搬入トラフ35を設けている設備においては、条鋼
は自動的に複数の搬入トラフ35に振り分けられて、搬入
トラフ35内を進み全長が搬入トラフ35内に納まったタイ
ミングで搬入トラフ35の回転軸が回転し、搬入トラフ35
内の長尺条鋼27は搬入トラフ35から落下し、冷却床26に
設けたレッヘン28により冷却床26に搬入されるようにな
っている。また、搬入テーブルは傾斜した多数のローラ
ーからなり、比較的低速度で搬入される条鋼の場合に使
用される。By the way, at the entrance of the cooling floor 26, a carry-in table or a carry-in trough 35 for carrying the bar steel into the cooling floor 26 is provided, but in the equipment having the carry-in trough 35, the bar steel is automatically carried into a plurality of carry-in bars. The rotary shaft of the carry-in trough 35 is rotated at the timing when it is distributed to the trough 35 and advances in the carry-in trough 35, and when the entire length is stored in the carry-in trough 35, the carry-in trough 35
The long steel strip 27 therein falls from the carry-in trough 35 and is carried into the cooling floor 26 by the Rechen 28 provided in the cooling floor 26. Further, the carry-in table is composed of a large number of inclined rollers, and is used in the case of a steel strip carried in at a relatively low speed.
［発明が解決しようとする課題］ 上記した搬入トラフ35に条鋼が突入するとき、長尺条鋼
27の先端の切断面に切断時に発生した切断ばりが付着し
ていると、この切断ばりが搬入トラフ35の縁に当たっ
て、長尺条鋼27が搬入トラフ35にうまく導かれず、搬入
トラフ35の前でくしゃくしゃに折れ曲がって後続の長尺
条鋼27の進行を妨害することになり、圧延を中断しなけ
ればならない自体が発生することがある。[Problems to be Solved by the Invention] When a steel strip plunges into the above-mentioned carry-in trough 35, a long strip steel
If the cutting burrs generated during cutting adhere to the cutting surface of the tip of 27, the cutting burrs hit the edge of the carry-in trough 35, the long steel strip 27 is not guided well to the carry-in trough 35, and is in front of the carry-in trough 35. It may be crumpled and hinder the progress of the subsequent long steel strip 27, which may itself require the interruption of rolling.
上記したような状態が発生した場合、従来は作業員が目
視でその状態を確認し、電話等で圧延機の運転者に連絡
して、条鋼の圧延を中断するようにしていた。しかしな
がら、このような方法で圧延を中断するのでは、トラブ
ルの発生から圧延を中断するまでに時間がかかりすぎ、
その間中条鋼が圧延されしかもそのすべてが搬入トラフ
前で折れ曲がってしまうので、ほとんどビレット１本分
のスクラップが発生し、そのスクラップを除去するため
に30分もの時間を要するので、条鋼圧延の稼働率を著し
く低下させるという問題点があった。When the above-mentioned state occurs, conventionally, an operator visually confirms the state and contacts the operator of the rolling mill by telephone or the like to interrupt the rolling of the steel strip. However, if the rolling is interrupted by such a method, it takes too much time from the occurrence of trouble to the interruption of the rolling,
During that time, the medium bar steel is rolled and all of it is bent before the carry-in trough, so almost one billet scrap is generated, and it takes as long as 30 minutes to remove the scrap. However, there is a problem in that
この発明は、従来技術の上述のような問題点を解消し、
搬入トラフ前でトラブルが発生したとき、自動的に異常
を検出して圧延材をコブルカッティングして、圧延材の
圧延機への噛込みを中断することにより、スクラップの
発生を極力減少させる条鋼の圧延方法を提供することを
目的としている。The present invention solves the above-mentioned problems of the prior art,
When a trouble occurs before the carry-in trough, abnormalities are automatically detected and the rolled material is cobble-cut, and the biting of the rolled material into the rolling mill is interrupted to reduce the generation of scrap as much as possible. The purpose is to provide a rolling method.
［課題を解決するための手段］ この発明に係る条鋼の圧延方法は、条鋼圧延機群に後続
する冷却床入口の搬入トラフまたは搬入ローラーテーブ
ルの中間に圧延材検出装置を設け、圧延機群と冷却床の
間に配置された走行分割シヤーからの切断信号が発せら
れてから所定の時間内に前記圧延材検出装置が圧延材を
検出しない場合、圧延機群の間に設けたフライングシヤ
ーにて圧延材をコブルカッティングして圧延機への圧延
材の噛込みを中断する条鋼の圧延方法である。[Means for Solving the Problems] A method for rolling a strip according to the present invention is to provide a rolling material detection device in the middle of a carry-in trough or a carry-in roller table at an inlet of a cooling floor subsequent to a group of strip rolling mills, and to provide a rolling mill group When the rolling material detection device does not detect the rolling material within a predetermined time after the cutting signal from the traveling division shear arranged between the cooling floors is issued, the rolling material is provided by the flying shear provided between the rolling mill groups. Is a method of rolling a bar steel in which cobble cutting is performed to interrupt the biting of the rolled material into the rolling mill.
［作用］ この発明に係る条鋼の圧延方法においては、条鋼圧延機
群に後続する冷却床入口の搬入トラフまたは搬入ローラ
ーテーブルの中間に圧延材検出装置を設け、圧延機群と
冷却床の間に配置された走行分割シヤーからの切断信号
が発せられてから所定の時間内に前記圧延材検出装置が
圧延材を検出しない場合、圧延機群の間に設けたフライ
ングシヤーにて圧延材をコブルカッティングして圧延機
への圧延材の噛込みを中断するようにしている。このよ
うにして圧延しているので、搬入トラフまたは搬入ロー
ラーテーブルに条鋼がうまく導かれずにトラブルが発生
した場合、圧延材検出装置は走行分割シヤーからの切断
信号が発せられてから所定時間内に条鋼を検出できない
ので、これに基づく警報信号を圧延機運転室に送る。こ
の警報信号に基づき、圧延機の間に設けられているコブ
ルカッティング用のフライングシヤーが自動的に作動し
て、圧延材のコブルカッティングを行ない、圧延機への
圧延材の噛込みを中断させる。前記圧延材検出装置は、
異常発生から短時間で異常を検出できるので、異常発生
から圧延中断までの時間も短くなり、その間に発生する
スクラップの発生量は少なくてすむ。したがって、異常
発生に伴うスクラップ除去作業も短時間で行なえるので
圧延機の稼働率を高めることができる。合わせてスクラ
ップの減少に伴い圧延歩留が向上する。[Operation] In the strip rolling method according to the present invention, a rolled material detection device is provided in the middle of the carry-in trough or the carry-in roller table at the cooling floor entrance subsequent to the strip rolling mill group, and the rolled material detection device is arranged between the rolling mill group and the cooling floor. When the rolling material detection device does not detect the rolling material within a predetermined time after the cutting signal from the traveling division shear is issued, the rolling material is cobble-cut by the flying shear provided between the rolling mill groups. The rolling material is prevented from being caught in the rolling mill. Since rolling is carried out in this way, if a trouble occurs because the bar steel is not properly guided to the carry-in trough or carry-in roller table, the rolled material detection device will detect the cutting signal from the traveling split shear within a predetermined time. Since the steel strip cannot be detected, an alarm signal based on this is sent to the rolling mill cab. Based on this alarm signal, the cobble cutting flying shears provided between the rolling mills are automatically operated to perform cobble cutting of the rolled material and interrupt the biting of the rolled material into the rolling mill. The rolled material detection device,
Since the abnormality can be detected in a short time after the abnormality has occurred, the time from the occurrence of the abnormality to the interruption of rolling can be shortened, and the amount of scrap generated during that period can be reduced. Therefore, the scrap removal work due to the occurrence of an abnormality can be performed in a short time, and the operating rate of the rolling mill can be increased. Together with the reduction of scrap, the rolling yield improves.
［実施例］ 本発明の１実施例の条鋼の圧延方法を第１図〜第４図に
より説明する。本発明の１実施例の鋼材の直送圧延方法
においては、条鋼圧延設備の粗圧延機１の入口に粗圧延
機材料検出器２を、中間圧延機３の入口に中間圧延機材
料検出器４を、仕上圧延機５の入口には仕上圧延機材料
検出器６を、また冷却床７の入口に連結するトラフライ
ン８の中間に冷却床入口部材料検出器９を設けている。
トラフライン８の中間に設けた冷却床入口部材料検出器
９について詳述すると次のようになる。第２図はトラフ
ライン８の一部側面図であるが、圧延された条鋼は第１
図に示すトラフライン８の入口に設置されている振分装
置10により振り分けられ、第２図に示す上下方向に４段
に並んで配置されたトラフ11に導入される。このトラフ
11は、ラッパ状の口を有する300mm程度の短尺トラフ12
を20mm程度の間隔をあけて多数連続して配置したもので
あり、直径30mm程度の内部空間を有している。このトラ
フ11の中間に、トラフ11内を搬送されている条鋼を検出
するための冷却床入口部材料検出器９を各トラフ11に設
けている。第３図は第２図のＡ−Ａ矢視図であるが、こ
の冷却床入口部材料検出器９は、短尺トラフ12と短尺ト
ラフ12の間の隙間から光学的に条鋼を検出するようにな
っている。そして、検出した信号はケーブル13を通し
て、制御器14に伝えられる。[Example] A method for rolling a bar steel according to an example of the present invention will be described with reference to Figs. In the method for directly sending and rolling steel material according to one embodiment of the present invention, a rough rolling mill material detector 2 is provided at the inlet of the rough rolling mill 1 of the strip rolling equipment, and an intermediate rolling mill material detector 4 is provided at the inlet of the intermediate rolling mill 3. A finish rolling mill material detector 6 is provided at the entrance of the finish rolling mill 5, and a cooling bed inlet material detector 9 is provided in the middle of a trough line 8 connected to the entrance of the cooling floor 7.
The cooling bed inlet material detector 9 provided in the middle of the trough line 8 will be described in detail below. FIG. 2 is a partial side view of the trough line 8, but the rolled steel bar is
It is distributed by the distribution device 10 installed at the entrance of the trough line 8 shown in the figure, and is introduced into the troughs 11 arranged in four stages in the vertical direction shown in FIG. This trough
11 is a short trough of about 300 mm with a trumpet-shaped mouth 12
Are continuously arranged at intervals of about 20 mm and have an internal space of about 30 mm in diameter. In the middle of the trough 11, a cooling floor inlet material detector 9 for detecting the steel strip conveyed in the trough 11 is provided in each trough 11. FIG. 3 is a view taken along the line AA of FIG. 2, and this cooling bed inlet material detector 9 is designed to optically detect the steel bar from the gap between the short troughs 12 and 12. Has become. Then, the detected signal is transmitted to the controller 14 through the cable 13.
本発明の１実施例の条鋼の圧延方法においては、上述し
た各材料検出器を使用して、トラフ11に条鋼がうまく誘
導されず、トラフ11の入口で折れ曲がってミスロールと
なった場合、後続の条鋼の進行を妨げて、連続してミス
ロール材が発生するのを防止するようにしている。その
方法は、第１図に示す仕上圧延機５の後方の分割シヤー
15で条鋼が切断されてから所定時間内に冷却床入口部材
料検出器９が条鋼を検知しない時には、その信号に基づ
き粗圧延機と中間圧延機の間に設けたNo.1フライングシ
ヤー16、および中間圧延機と仕上圧延機の間に設けたN
o.2フライングシヤー17を作動させ、圧延材をコブルカ
ッティングして圧延材の圧延機への噛込みを中断させ
て、ミスロール材の多量発生を防止するというものであ
る。In the method for rolling a bar steel according to one embodiment of the present invention, when the bar steel is not well guided to the trough 11 by using each of the above-mentioned material detectors and a bending at the entrance of the trough 11 causes a misroll, the following The progress of the steel strip is hindered to prevent the continuous generation of misrolled material. The method is as follows: a split shear at the rear of the finish rolling mill 5 shown in FIG.
When the cooling bed inlet material detector 9 does not detect the strip steel within a predetermined time after the strip steel is cut at 15, No. 1 flying shear 16 provided between the rough rolling mill and the intermediate rolling mill based on the signal, And N installed between the intermediate rolling mill and the finishing mill.
o.2 The flying shear 17 is operated to cobble-cut the rolled material to interrupt the biting of the rolled material into the rolling mill, thereby preventing a large amount of misrolled material from being generated.
第４のブロック図により、本発明の１実施例のミスロー
ル材を多量に発生させない条鋼の圧延方法を説明する。
分割シヤーの切断信号と検出された仕上圧延機の最終圧
延スタンドの回転数の信号を演算器に送り、切断された
条鋼が、導入さるべきトラフに配置した冷却床入口部材
料検出器９で検出される到達予定時間を演算し、その結
果を演算タイマーに送り、条鋼の到達予定時間を設定す
る。冷却床入口部材料検出器９が予定到達時間内に条鋼
を検知した時には、制御器14からNo.1およびNo.2フライ
ングシヤー対して正常状態保持指令、すなわち作動しな
くてもよいという指令が発せられる。冷却床入口部材料
検出器９が予定到達時間内に条鋼を検知せず、かつ粗圧
延機材料検出器２、中間圧延機材料検出器４および仕上
圧延機材料検出器６が圧延材料を検出している時には、
No.1フライングシヤー16およびNo.2フライングシヤー17
に対して連続カット指令、すなわちコブルカッティング
指令が発せられ、圧延材料はコブルカッティングされ
る。そして、コブルカッティングが完了して、No.1フラ
イングシヤー16およびNo.2フライングシヤー17に設けた
材料検出器が材料を検知しなくなった時には、一定時間
経過後No.1フライングシヤー16およびNo.2フライングシ
ヤー17に対して連続カット停止指令が発せられ、No.1フ
ライングシヤー16およびNo.2フライングシヤー17は作動
を停止する。冷却床入口部材料検出器９が予定到達時間
内に条鋼を検知しなくても、粗圧延機材料検出器２、中
間圧延機材料検出器４および仕上圧延機材料検出器６が
圧延材料を検出していない時には、連続カット指令は発
せられない。With reference to the fourth block diagram, a method for rolling a bar steel that does not generate a large amount of misrolled material according to the first embodiment of the present invention will be described.
The cutting signal of the split shear and the detected rotation speed signal of the final rolling stand of the finishing rolling mill are sent to the arithmetic unit, and the cut steel strip is detected by the cooling floor inlet material detector 9 arranged in the trough to be introduced. The expected arrival time is calculated, and the result is sent to the calculation timer to set the expected arrival time of the steel strip. When the cooling floor inlet material detector 9 detects the steel bar within the expected arrival time, the controller 14 issues a normal state maintenance command to the No. 1 and No. 2 flying shears, that is, a command that it does not have to operate. Is emitted. The cooling floor inlet material detector 9 does not detect the steel bar within the expected arrival time, and the rough rolling mill material detector 2, the intermediate rolling mill material detector 4 and the finish rolling mill material detector 6 detect rolling material. When you are
No. 1 flying shear 16 and No. 2 flying shear 17
A continuous cut command, that is, a cobble cutting command is issued to the rolled material, and the rolled material is cobble cut. When the cobble cutting is completed and the material detectors provided in the No. 1 flying shear 16 and No. 2 flying shear 17 stop detecting the material, the No. 1 flying shear 16 and No. A continuous cut stop command is issued to the 2 flying shears 17, and the No. 1 flying shear 16 and the No. 2 flying shear 17 stop operating. Even if the cooling bed inlet material detector 9 does not detect the steel strip within the expected arrival time, the rough rolling mill material detector 2, the intermediate rolling mill material detector 4 and the finishing mill material detector 6 detect the rolled material. If not, the continuous cut command is not issued.
本発明の１実施例の条鋼の圧延方法においては、上述し
たように、トラフラインでのトラブルをいち早く検出し
て、自動的にコブルカッティングして、圧延材の圧延機
への噛込みを中断するようにしているので、トラブル発
生時のミスロール材の除去処理に時間を要しないととも
に、圧延歩留も向上する。In the method for rolling steel bar according to the first embodiment of the present invention, as described above, the trouble in the trough line is detected promptly, the cobble cutting is automatically performed, and the biting of the rolled material into the rolling mill is interrupted. Therefore, it takes no time to remove the misrolled material when trouble occurs, and the rolling yield is improved.
なお、本発明の１実施例の条鋼の圧延方法を搬入トラフ
の場合で説明したが、搬入ローラーテーブルの場合に
も、本圧延方法が適用可能であるのは当然である。Although the rolling method for rolled steel according to the first embodiment of the present invention has been described in the case of the carry-in trough, it is natural that the present rolling method can be applied to the case of the carry-in roller table.
［発明の効果］ この発明により、トラフラインでのトラブル発生時のミ
スロール材の除去処理に時間を要しないとともに、圧延
歩留も向上する。[Advantages of the Invention] According to the present invention, it is possible to reduce the time required for removing the misrolled material when trouble occurs in the trough line, and to improve the rolling yield.
第１図は本発明の１実施例の条鋼の圧延方法を実施する
圧延ラインの設備配置を示す平面図、第２図はトラフの
側面図、第３図は第２図のＡ−Ａ矢視図、第４図は本発
明の１実施例の条鋼の圧延方法を示すブロック図、第５
図は従来の圧延ラインの設備配置を示す平面図である。 ２……粗圧延機材料検出器、４……中間圧延機材料検出
器、６……仕上圧延機材料検出器、９……冷却床入口部
材料検出器、11……トラフ、15……分割シヤー、16……
No.1フライングシヤー、17……No.2フライングシヤー。FIG. 1 is a plan view showing the equipment layout of a rolling line for carrying out the method for rolling steel bar according to one embodiment of the present invention, FIG. 2 is a side view of a trough, and FIG. 3 is a view taken along the line AA of FIG. FIG. 4 is a block diagram showing a method for rolling a bar steel according to one embodiment of the present invention, FIG.
The figure is a plan view showing a facility arrangement of a conventional rolling line. 2 …… Rough rolling mill material detector, 4 …… Intermediate rolling mill material detector, 6 …… Finishing mill material detector, 9 …… Cooling floor inlet material detector, 11 …… Trough, 15 …… Split Sheer, 16 ……
No.1 flying shear, 17 …… No.2 flying shear.
フロントページの続き (56)参考文献 特開 昭49−93251（ＪＰ，Ａ) 特開 昭60−92010（ＪＰ，Ａ) 特公 昭53−34675（ＪＰ，Ｂ２)Continuation of front page (56) References JP-A-49-93251 (JP, A) JP-A-60-92010 (JP, A) JP-B-53-34675 (JP, B2)
Claims (1)
トラフまたは搬入ローラーテーブルの中間に圧延材検出
装置を設け、圧延機群と冷却床の間に配置された分割シ
ヤーからの切断信号が発せられてから所定の時間内に前
記圧延材検出装置が圧延材を検出しない場合、圧延機群
の間に設けたフライングシヤーにて圧延材をコブルカッ
ティングして圧延機への圧延材の噛込みを中断すること
を特徴とする条鋼の圧延方法。1. A rolled material detection device is provided in the middle of a carry-in trough or a carry-in roller table at an inlet of a cooling floor subsequent to a strip rolling mill group, and a cutting signal is issued from a split shear arranged between the rolling mill group and the cooling floor. If the rolled material detection device does not detect the rolled material within a predetermined time after the rolling, the rolled material is cobble-cut by the flying shear provided between the rolling mill groups to prevent the rolled material from being caught in the rolling mill. A method for rolling a steel strip characterized by interruption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716389A JPH0790241B2 (en) | 1989-09-01 | 1989-09-01 | Rolling method for bar steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716389A JPH0790241B2 (en) | 1989-09-01 | 1989-09-01 | Rolling method for bar steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390201A JPH0390201A (en) | 1991-04-16 |
| JPH0790241B2 true JPH0790241B2 (en) | 1995-10-04 |
Family
ID=16856481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22716389A Expired - Lifetime JPH0790241B2 (en) | 1989-09-01 | 1989-09-01 | Rolling method for bar steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790241B2 (en) |
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| US6911496B2 (en) | 1995-12-18 | 2005-06-28 | Cohesion Technologies, Inc. | Composition for administration of a biologically active compound |
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| US8834864B2 (en) | 2003-06-05 | 2014-09-16 | Baxter International Inc. | Methods for repairing and regenerating human dura mater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5334675B2 (en) | 2009-05-13 | 2013-11-06 | 株式会社日立ハイテクノロジーズ | Proximity exposure apparatus, method for preventing mask misalignment of proximity exposure apparatus, and method for manufacturing display panel substrate |
-
1989
- 1989-09-01 JP JP22716389A patent/JPH0790241B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5334675B2 (en) | 2009-05-13 | 2013-11-06 | 株式会社日立ハイテクノロジーズ | Proximity exposure apparatus, method for preventing mask misalignment of proximity exposure apparatus, and method for manufacturing display panel substrate |
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|---|---|---|---|---|
| US6969400B2 (en) | 1995-12-18 | 2005-11-29 | Cohesion Technologies, Inc. | Synthetic implant with nonimmunogenicity coating |
| US7151135B2 (en) | 1995-12-18 | 2006-12-19 | Angiotech Pharmaceuticals (Us), Inc. | Crosslinked polymer compositions |
| US7176256B2 (en) | 1995-12-18 | 2007-02-13 | Angiotech Pharmaceuticals (Us), Inc. | Biocompatible crosslinked composition |
| EP2111876A2 (en) | 1995-12-18 | 2009-10-28 | AngioDevice International GmbH | Crosslinked polymer compositions and methods for their use |
| US6911496B2 (en) | 1995-12-18 | 2005-06-28 | Cohesion Technologies, Inc. | Composition for administration of a biologically active compound |
| US8834864B2 (en) | 2003-06-05 | 2014-09-16 | Baxter International Inc. | Methods for repairing and regenerating human dura mater |
| US9353218B2 (en) | 2004-09-17 | 2016-05-31 | Angiotech Pharmaceuticals, Inc. | Kit for multifunctional compounds forming crosslinked biomaterials |
| EP2468310A1 (en) | 2006-08-02 | 2012-06-27 | Baxter International Inc | Rapidly acting dry sealant and methods for use and manufacture |
| EP3909619A1 (en) | 2006-08-02 | 2021-11-17 | Baxter International Inc | Rapidly acting dry sealant and methods for use and manufacture |
| US8962025B2 (en) | 2006-08-02 | 2015-02-24 | Baxter International Inc. | Rapidly acting dry sealant and methods for use and manufacture |
| EP3466454A1 (en) | 2006-08-02 | 2019-04-10 | Baxter International Inc | Rapidly acting dry sealant and methods for use and manufacture |
| US9533069B2 (en) | 2008-02-29 | 2017-01-03 | Ferrosan Medical Devices A/S | Device for promotion of hemostasis and/or wound healing |
| US9993298B2 (en) | 2009-05-18 | 2018-06-12 | Baxter International Inc. | Method for the improvement of mesh implant biocompatibility |
| US9039783B2 (en) | 2009-05-18 | 2015-05-26 | Baxter International, Inc. | Method for the improvement of mesh implant biocompatibility |
| US9162006B2 (en) | 2009-06-16 | 2015-10-20 | Baxter International Inc. | Hemostatic sponge |
| US12576181B2 (en) | 2009-06-16 | 2026-03-17 | Baxter International Inc. | Hemostatic sponge |
| US9408945B2 (en) | 2010-06-01 | 2016-08-09 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
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| US10245348B2 (en) | 2010-06-01 | 2019-04-02 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
| US8940335B2 (en) | 2010-06-01 | 2015-01-27 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
| US9265858B2 (en) | 2012-06-12 | 2016-02-23 | Ferrosan Medical Devices A/S | Dry haemostatic composition |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH0390201A (en) | 1991-04-16 |
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