JPS62161404A - Continuous hot rolling method - Google Patents
Continuous hot rolling methodInfo
- Publication number
- JPS62161404A JPS62161404A JP168386A JP168386A JPS62161404A JP S62161404 A JPS62161404 A JP S62161404A JP 168386 A JP168386 A JP 168386A JP 168386 A JP168386 A JP 168386A JP S62161404 A JPS62161404 A JP S62161404A
- Authority
- JP
- Japan
- Prior art keywords
- looper
- joining
- hot
- rolling
- welding
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- 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
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は、スラブから圧延された熱間圧延材または薄鋳
片による熱間鋳造材を接合して連続的に仕上圧延を行う
連続熱間圧延方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention is a continuous hot rolling method in which hot-rolled material rolled from a slab or hot cast material made of thin slabs are joined together and finish rolled continuously. The present invention relates to an inter-rolling method.
(ロ)従来技術
近年、通板性の向丘、スクラップ・ロスの減少、作業能
率の向上を図るために、連続熱間圧延が提案されている
。この連続熱間圧延は、仕上圧延機の前で、先行圧延材
の後端部と後行圧延材の先端部とを溶接等によって接合
して仕上圧延を連続して行うものである。(b) Prior art In recent years, continuous hot rolling has been proposed to improve threadability, reduce scrap loss, and improve work efficiency. In this continuous hot rolling, the trailing end of the preceding rolled material and the leading end of the succeeding rolling material are joined by welding or the like in front of a finishing rolling mill, and finishing rolling is performed continuously.
例えば、特開昭58−112601号公報には、粗圧延
機と仕上圧延機との間にコイル・ボックス、固定式溶接
機、シート・バー貯蔵装置を配置した圧延ラインが提案
されている。特開昭597209405号公報には、固
定式溶接機の後に、スパイラル・ルーパを配置した熱間
圧延ラインが提案されている。For example, JP-A-58-112601 proposes a rolling line in which a coil box, a stationary welding machine, and a sheet bar storage device are arranged between a rough rolling mill and a finishing rolling mill. JP-A-597209405 proposes a hot rolling line in which a spiral looper is arranged after a fixed welding machine.
しかしながら、厚み20間以上のバーを溶接する場合、
溶接能力の不足から、短時間で全断面を溶接することは
困難である。そこで、特開昭60−223657号公報
では複数の溶接トーチをバー幅方向に配置し、下向きア
ーク浴接する方法が提案されている。しかし、突き合せ
溶接では敢闘の厳しい位置合せが要求されるので、位置
合せに長時間を要し、実用的ではない。However, when welding bars with a thickness of 20 mm or more,
Due to lack of welding capacity, it is difficult to weld the entire cross section in a short time. Therefore, Japanese Patent Application Laid-Open No. 60-223657 proposes a method in which a plurality of welding torches are arranged in the width direction of the bar to perform downward arc bath welding. However, butt welding requires difficult positioning, which takes a long time and is not practical.
特開昭59−209405号公報で提案しているゼンジ
ミャ式、または、ケント式のスパイラル・ルーパでは、
接合部分も他の部分と同様にルーパ内で曲げ、曲げ戻し
を受けるために、接合部から破断するおそれがある。In the Senzimya type or Kent type spiral looper proposed in Japanese Patent Application Laid-Open No. 59-209405,
Like other parts, the joint part is bent and unbended within the looper, so there is a risk of the joint part breaking.
従来の接合法においては、先行および後行圧延材の端部
を別々に切断してから、端部を相互に接合していた。こ
の方法では手間がかかる上に端部の接合が円滑に行われ
にくい。そこで、この方法を改善するだめに、接合端部
を重ね合せて切断する方法が開発された。In conventional joining methods, the ends of the leading and trailing rolled materials are cut separately and then the ends are joined together. This method is time-consuming and difficult to join the ends smoothly. Therefore, in order to improve this method, a method was developed in which the joined ends are overlapped and cut.
その接合法は、先行圧延材後端部と後行圧延材先端部と
を重ね合せ、端部の開口幅が内実部の幅よりも狭くなっ
たジグソ形状(以下、ジグソ形状という。)に打ち抜い
ていた。この方法では切断先端部のカエリが互いに対向
する方向に発生する。The joining method involves overlapping the rear end of the preceding rolled material and the leading end of the following rolling material, and punching out a jigsaw shape (hereinafter referred to as jigsaw shape) in which the opening width at the end is narrower than the inner width. was. In this method, burrs at the cutting tips occur in opposite directions.
そのため、切断後、測圧延材の先後端部を互いに補完的
に重ね合せ、押し込みながら嵌め合すさいに、互いに対
向したカエリの存在によりそのスムーズな嵌合が妨げら
れ、圧延能率の向上が達成できなかった。Therefore, after cutting, when the leading and trailing ends of the gauging rolled material are overlapped complementary to each other and fitted together while being pressed, the presence of opposing burrs prevents smooth fitting, resulting in improved rolling efficiency. could not.
さらに、本出願人に係る特願昭59−225487号(
特開昭61− 号公報)には圧延材の先後端部を
上下に間隔をあけて重複させて順次切断・嵌合を行う方
法を開示している。この方法は、切断端部にカエリが生
じないので端部の嵌合が円滑に行われる。しかし、この
方法では端部クロップの排除に問題がちシ、また、嵌合
の締代の調節ができない。Furthermore, Japanese Patent Application No. 59-225487 (
Japanese Unexamined Patent Application Publication No. 1988-61 discloses a method in which the leading and trailing ends of a rolled material are overlapped vertically at intervals and sequentially cut and fitted. This method does not cause burrs on the cut ends, so the ends can be fitted smoothly. However, this method tends to have problems with eliminating end crops and does not allow for adjustment of the interference of the fit.
そこで、本出願人はその欠点を解決するために、特願昭
59−260543号(特開昭61− 号公報)
において、
[粗圧延後の先行圧延材の後端部と粗圧延後の後行圧延
材の先端部とを接合して連続的に仕上圧延を行う連続熱
間圧延ラインにおいて、該ラインに関して上側および下
側に別個に移動する圧延材誘導用通路を設けること、各
通路に1対の上刃および下刃からなる上側および下側刃
物ユニットを設けること、前記上刃および下刃を端部の
開口幅が内奥部の幅よりも狭くなったジグソ形状であっ
て相互に補完し合うように成形すること、前記の先端部
および後端部を前記の各1対の上側刃物ユニットおよび
下側刃物ユニットによってそれぞれ同一タイミングで切
断すること、前記切断と同時に切断先行端部を互いに嵌
合方向に移動させかつ前記の各通路を前記ラインに一致
するように移動させながら前記上側および下側刃物ユニ
ットによって前記切断端部を相互に補完し合うように嵌
め合うこと、該嵌合部側縁を溶接することからなる圧延
材の接合方法。」を提案した。Therefore, in order to solve this drawback, the present applicant has filed Japanese Patent Application No. 59-260543 (Japanese Unexamined Patent Publication No. 1988-61).
[In a continuous hot rolling line in which finish rolling is performed continuously by joining the rear end of the preceding rolled material after rough rolling and the leading end of the trailing rolled material after rough rolling, the upper and A path for guiding rolled material that moves separately on the lower side is provided, an upper and lower cutter unit consisting of a pair of upper and lower blades is provided in each path, and the upper and lower blades are connected to an opening at the end. The width is narrower than the width of the inner part, and the shape is formed so as to complement each other. cutting at the same timing by the units, and simultaneously moving the cutting leading ends in the direction of engagement with each other and moving the respective passages so as to coincide with the lines, by the upper and lower cutter units; A method for joining rolled materials, which comprises fitting the cut ends so as to complement each other, and welding the side edges of the fitting parts. ” was proposed.
この接合方法は、切断時に圧延材の先後端部にカエリが
対向して発生するのを防止し、端部クロップの排除を容
易確実に行い、嵌合締代を任意に選定でき、切断後の補
完的な嵌め合いを支障なく確実、迅速に行う点で非常に
有効である。This joining method prevents burrs from appearing at the leading and trailing ends of the rolled material during cutting, easily and reliably eliminates end crops, allows the fitting interference to be arbitrarily selected, and It is extremely effective in performing complementary fitting without any trouble, reliably, and quickly.
(ハ)発明が解決しようとする問題点
本発明が解決しようとする問題点は、前述した接合方法
を有効に活用して、圧延材の接合時間の短縮、接合強度
の確保、接合部のルーパ内通板性確保および破断防止を
図って熱間圧延の能率を向上させることにある。(c) Problems to be Solved by the Invention The problems to be solved by the present invention are to effectively utilize the above-described joining method to shorten the joining time of rolled materials, ensure joint strength, and improve the loopability of the joint. The objective is to improve the efficiency of hot rolling by ensuring sheet threadability and preventing breakage.
に)問題点を解決するだめの手段
本発明の連続熱間圧延方法は、コイル・ボックスからス
ラブから圧延された熱間圧延材または薄鋳片による熱間
鋳造材を巻き解き仕上圧延機に誘導して仕上圧延を行う
こと、該仕上圧延機入側において接合機によって先行材
の後端部と後行材の先端部とをジグソ形状に切断して互
いに嵌合溶接接合をすること、前記接合機と前記仕上圧
延機との間において回転式S字形ルーパによって熱間材
を変形自在のS字形ループに成形することによって、上
記問題点を解決している。B) Means for solving the problem The continuous hot rolling method of the present invention unwinds the hot rolled material rolled from the slab or the hot cast material made of thin slab from the coil box and guides it to the finishing rolling mill. cutting the trailing end of the leading material and the leading end of the trailing material into a jigsaw shape using a joining machine on the entry side of the finishing rolling machine and joining them together by fitting and welding; The above problem is solved by forming the hot material into a deformable S-shaped loop by means of a rotary S-shaped looper between the finishing mill and the finishing mill.
本発明の方法は、さらに、前記接合機と前記ルーパ間ま
たは該ルーパと前記仕上圧延機間においてサイド・シヤ
によって前記圧延材の接合部側縁を切断することによっ
ても上記問題点を解決できる。The method of the present invention can also solve the above-mentioned problems by cutting the side edge of the joint portion of the rolled material with a side shear between the joining machine and the looper or between the looper and the finishing rolling mill.
(ホ)実施例
本発明の方法の一実施例について以下に説明する。第1
図は粗圧延機を備えた熱間圧延ラインに適用した例であ
る。まず圧延ライン全体の構成について説明する。粗圧
延機1によって粗圧延された粗圧延材10αは、一旦コ
イル・ボックス2に巻き取られる。次に粗圧延材10α
はコイル・ボックス2から巻き解かれ、接合機31回転
式S字形ルーパ5、を経て仕上圧延機6に誘導される。(E) Example An example of the method of the present invention will be described below. 1st
The figure shows an example of application to a hot rolling line equipped with a rough rolling mill. First, the configuration of the entire rolling line will be explained. A rough rolled material 10α that has been rough rolled by the rough rolling mill 1 is once wound up into a coil box 2. Next, the rough rolled material 10α
is unwound from the coil box 2 and guided to the finishing mill 6 via the splicing machine 31 and the rotary S-shaped looper 5.
仕上圧延機6によって仕上圧延された仕上圧延材106
は、走間切断機7によって圧延材1(lの接合部で切断
分離された後、ダウン・コイ28に巻き取られる。Finish-rolled material 106 that has been finish-rolled by the finish-rolling mill 6
is cut and separated at the joint of the rolled material 1 (l) by the running cutter 7, and then wound around the down coil 28.
接合機3としては、前述した特願昭59−260543
号に開示されている方法を実施する装置でよい。As the joining machine 3, the above-mentioned patent application No. 59-260543 is used.
It may be an apparatus for carrying out the method disclosed in the above publication.
この装置は、先行圧延材および後行圧延材の端部をそれ
ぞれほぼ同時にジグソ形状に切断する機構とジグソ形状
に切断した先後端部を嵌合する機構と、少なくとも嵌合
部側縁を含む嵌合部の一部を溶接する(例えば、アーク
溶接)機構とを備えている。ジグソ接合と溶接接合とを
結合することによシ、接合部の接合強度が向上するほか
に、溶接のための位置合せが極めて容易となシ、接合時
間の短縮、溶接部の信頼性が向上する。This device includes a mechanism that cuts the ends of the leading rolled material and the trailing rolled material almost simultaneously into a jigsaw shape, a mechanism that fits the leading and trailing ends of the jigsaw shapes, and a fitting that includes at least the side edges of the fitting part. A mechanism for welding a part of the joint (for example, arc welding) is provided. By combining jigsaw joints and welded joints, in addition to improving the joint strength of the joint, alignment for welding is extremely easy, shortening the joining time, and improving the reliability of the welded joint. do.
回転式S字形ルーパ5の一例を、第3図および第4図を
参照して説明する。ルーパ5は一定の間隔をあけて平行
に配置された1対の円板51の円周方向に複数本のガイ
ド・ローラ52を回転自在に取り付け、円板51の直径
方向に1対の押込みロー253を回転自在に取シ付け、
円板51の中心部に1対のピンチ・ロー254を回転・
開閉自在に取シ付けられる。ガイドゝ・ロールおよびピ
ンチ・ロールは必要に応じて回転駆動することも可能で
ある。An example of the rotary S-shaped looper 5 will be described with reference to FIGS. 3 and 4. The looper 5 has a plurality of guide rollers 52 rotatably attached in the circumferential direction of a pair of discs 51 arranged in parallel at a constant interval, and a pair of push rollers in the diametrical direction of the discs 51. 253 is installed rotatably,
A pair of pinch rows 254 are rotated at the center of the disc 51.
It can be installed so that it can be opened and closed. The guide roll and pinch roll can also be rotationally driven as required.
円板51の中心部に支軸55が支柱56に回転自在に支
持され、モータ57によって円板51は両方向に回転駆
動される。A support shaft 55 is rotatably supported by a column 56 at the center of the disk 51, and the disk 51 is driven to rotate in both directions by a motor 57.
ピンチ・ローラ54は、流体圧シリンダ58によって、
開閉される。The pinch roller 54 is operated by a hydraulic cylinder 58.
It is opened and closed.
第3図を参照して、ルーパ5の動作について説明する。The operation of the looper 5 will be explained with reference to FIG.
まず、粗圧延材10αは、接合機3およびルーパ5を通
過して仕上圧延機6に誘導される(A)。First, the rough rolled material 10α passes through the joining machine 3 and the looper 5 and is guided to the finishing rolling mill 6 (A).
次に、静止接合に備え、ループが形成される。A loop is then formed in preparation for static bonding.
すなわち、ピンチロール54が閉じて粗圧延材10αを
挾み付け、続いて、押し込みロール53にて、粗圧延材
10CLを押し込み湾曲させながら、円板を駆動し、ル
ーパを時計方向に回転させる。このとき。That is, the pinch rolls 54 close to pinch the rough rolled material 10α, and then the push rolls 53 push and curve the rough rolled material 10CL while driving the disk and rotating the looper clockwise. At this time.
ルーパに入る粗圧延材の走行速度(ルーパ入側速度)を
仕上圧延機へのはき出し速度(ルーパ出側速度)よりも
大きく速度制御することにより、粗圧延材はガイド・ロ
ーラに巻き付けられ、ループが形成される(B)基本的
には、ループ形成時の板表面疵発生防止の観点から、ル
ープは一層巻きが望ましく、ループの径は必要とされる
板蓄積量から決定される。By controlling the traveling speed of the rough-rolled material entering the looper (looper entry speed) to be greater than the speed at which it is rolled out to the finishing rolling mill (looper exit speed), the rough-rolled material is wound around the guide rollers and formed into a loop. (B) Basically, from the viewpoint of preventing the occurrence of flaws on the plate surface during loop formation, it is desirable that the loop be wound one layer, and the diameter of the loop is determined based on the required amount of plate accumulation.
接合の際には、Cに示すように、先行材の後端と後行材
の先端とが接合機内に驚倒され、切断。During joining, as shown in C, the trailing end of the leading material and the leading end of the trailing material are thrown into the joining machine and cut.
嵌合、溶接にて接合が行われる。このとき、仕上ミルに
は、ルーパを反時計方向に回転させることによシ、ルー
パに蓄積した先行材が払い出され、圧延が行われるため
、静止した状態での接合が可能となる。接合が完了し、
先行材に接続した状態で後行材が走行し始めるが、接合
後がルーツ々内に入るときには%Aの状態に戻る。この
ため、接合部はルーパ内で曲げを受けずに通板できる。Connection is performed by fitting and welding. At this time, by rotating the looper counterclockwise, the preceding material accumulated in the looper is discharged to the finishing mill and rolling is performed, so that joining can be performed in a stationary state. The joining is completed,
The trailing material starts running while connected to the leading material, but returns to the state of %A when the joined material enters the roots. Therefore, the joint can be passed through the looper without being bent.
また、粗圧延材の先端および後端もAの状態で通板でき
るので、通板上のトラブルの発生もない。Furthermore, since the leading and trailing ends of the rough rolled material can also be threaded in the state A, no trouble occurs during threading.
嵌合部側縁を溶接する場合、側縁部では溶は落ちが発生
しやすく、側縁部の溶接深さが十分に得られない。さら
に厳しい圧延条件を採用した場合、仕上圧延の際、接合
部側縁の割れが進展し、圧延に支障をきだすことがある
。そこで、この対策として、第2図に示すように、仕上
圧延機6と接合機3との間に接合部端部を切断する走間
サイド・シヤ41を配置する。図示例では、サイド・シ
ヤ4を接合機3とルーツξ5との間に配置しているが、
ルーパ5と仕上圧延機6との間に配置してもよい。When welding the side edges of the fitting part, welding tends to drop off at the side edges, making it impossible to obtain a sufficient welding depth at the side edges. If even more severe rolling conditions are adopted, cracks on the side edges of the joint may develop during finish rolling, which may impede rolling. Therefore, as a countermeasure against this problem, as shown in FIG. 2, a running side shear 41 is disposed between the finishing mill 6 and the joining machine 3 to cut the end of the joining part. In the illustrated example, the side shear 4 is placed between the welding machine 3 and the roots ξ5, but
It may be arranged between the looper 5 and the finishing mill 6.
ルー/ξ5を活用し、接合機3とルーパ5との間に、静
止サイド・シヤ(図示せず)を配置することも可能であ
る。サイド・シヤにて、溶接接合強度が十分でない接合
部端部を切断除去することにより、十分な溶接深さを持
つ断面が新たに接合部側縁となり、接合部端部の強度が
増加する結果、側縁割れの問題が解決する。It is also possible to utilize the loop/ξ5 to arrange a stationary side shear (not shown) between the splicer 3 and the looper 5. By cutting and removing the edge of the joint where the strength of the welded joint is insufficient, a new section with sufficient weld depth becomes the side edge of the joint, increasing the strength of the edge of the joint. , the problem of side edge cracking is solved.
サイド・シヤ切断の一例として、第5図にサイド・シヤ
切断後の接合部の状態を示す。側縁溶接部の一部11を
切断除去することにより、接合部端部においても、他の
溶接部と同等の接合強度を得ることができる。As an example of side shear cutting, FIG. 5 shows the state of the joint after side shear cutting. By cutting and removing part 11 of the side edge weld, it is possible to obtain a joint strength equivalent to that of other welds also at the end of the joint.
(へ)効 果
本発明の方法によれば、熱間材の接合に従来1〜2分要
していたものが10〜30秒に短縮でき、接合時間の短
縮により熱間材の蓄積量を減少できるのでルーパを小型
化でき、接合の複合化により接合強度を大幅に向上させ
ることができ、熱間材の先端後端および接合部はルーパ
内での曲げを受けることなく通板できるので通板トラブ
ルが減少し、全体の圧延能率が向上する。(f) Effects According to the method of the present invention, the conventional 1 to 2 minutes required for joining hot materials can be shortened to 10 to 30 seconds, and the amount of accumulated hot materials can be reduced by shortening the joining time. This allows the looper to be made smaller, and the joint strength can be greatly improved by combining the joints.The leading and trailing ends of the hot material and the joint can be threaded without being bent inside the looper, making it possible to pass through the looper. Plate troubles are reduced and overall rolling efficiency is improved.
第1図は本発明の連続熱間圧延方法を実施する設備の概
略説明図。第2図は第1図に示す設備の変更例を示す概
略部分図。第3図は回転式S字形ルーツξの動作説明図
。第4図はルーパの正面図。
第5図は圧延材の接合部の平面図。
1:粗圧延機 2:コイル−ボックス3:接合機
4:サイド・シヤ5:回転式S字形 6:
仕上圧延機
7:走間切断機 8:ダウン・コイン10α:粗圧
延材 10h:仕上圧延材51:円 板
52ニガイド・ローラ53:押込みロー2 54:ピン
チ・ローラ55:支軸 56:支柱
57:モータ
特許出願人〜6 住友金属工業株式会社(外5名)FIG. 1 is a schematic explanatory diagram of equipment for carrying out the continuous hot rolling method of the present invention. FIG. 2 is a schematic partial diagram showing an example of modification of the equipment shown in FIG. 1. FIG. 3 is an explanatory diagram of the operation of the rotary S-shaped roots ξ. Figure 4 is a front view of the looper. FIG. 5 is a plan view of the joint of rolled materials. 1: Rough rolling mill 2: Coil box 3: Joining machine 4: Side shear 5: Rotating S-shaped 6:
Finish rolling mill 7: Inter-travel cutting machine 8: Down coin 10α: Rough rolled material 10h: Finish rolled material 51: Circular plate
52 Guide roller 53: Push-in row 2 54: Pinch roller 55: Support shaft 56: Support column 57: Motor patent applicant ~ 6 Sumitomo Metal Industries, Ltd. (5 others)
Claims (2)
圧延材または薄鋳片による熱間鋳造材を巻き解き、仕上
圧延機に誘導して仕上圧延を行うこと、該仕上圧延機入
側において接合機によつて先行材の後端部と後行材の先
端部とをジグソ形状に切断して互いに嵌合溶接接合をす
ること、前記接合機と前記仕上圧延機との間において回
転式S字形ルーパによつて熱間材を変形自在のS字形ル
ープに成形することからなる連続熱間圧延方法。(1) Uncoiling the hot-rolled material rolled from the slab or the hot-cast material made of thin slab from the coil box and guiding it to the finishing mill for finish rolling, and joining at the entry side of the finishing mill. The rear end of the preceding material and the leading end of the succeeding material are cut into a jigsaw shape by a machine, and they are fitted and welded to each other, and a rotary S-shaped A continuous hot rolling method comprising forming hot material into a deformable S-shaped loop using a looper.
圧延材または薄鋳片による熱間鋳造材を巻き解き仕上圧
延機に誘導して仕上圧延を行うこと、該仕上圧延機入側
において接合機によつて先行材の後端部と後行材の先端
部とをジグソ形状に切断して互いに嵌合溶接接合をする
こと、前記接合機と前記仕上圧延機との間において回転
式S字形ルーパによつて熱間材を変形自在のS字形ルー
プに成形すること、前記接合機と前記ルーパ間または該
ルーパと前記仕上圧延機間においてサイド・シヤによつ
て前記熱間材の接合部側縁を切断することからなる連続
熱間圧延方法。(2) The hot-rolled material rolled from the slab or the hot-cast material made of thin slab from the coil box is uncoiled and guided to a finishing mill for finishing rolling, and a joining machine is installed on the entry side of the finishing rolling mill. cutting the rear end of the preceding material and the leading end of the succeeding material into a jigsaw shape and fitting and welding them together; and a rotary S-shaped looper between the welding machine and the finishing rolling mill. forming the hot material into a deformable S-shaped loop by means of a side shear between the joining machine and the looper or between the looper and the finishing mill; A continuous hot rolling method consisting of cutting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP168386A JPS62161404A (en) | 1986-01-08 | 1986-01-08 | Continuous hot rolling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP168386A JPS62161404A (en) | 1986-01-08 | 1986-01-08 | Continuous hot rolling method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62161404A true JPS62161404A (en) | 1987-07-17 |
Family
ID=11508307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP168386A Pending JPS62161404A (en) | 1986-01-08 | 1986-01-08 | Continuous hot rolling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62161404A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000061312A1 (en) * | 1999-04-13 | 2000-10-19 | Wonjin Industrial Co., Ltd. | Rotary looper |
JP2010138492A (en) * | 1996-03-15 | 2010-06-24 | Jfe Steel Corp | Hot-rolled steel sheet for ultra-thin steel sheet and method for manufacturing the same |
-
1986
- 1986-01-08 JP JP168386A patent/JPS62161404A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010138492A (en) * | 1996-03-15 | 2010-06-24 | Jfe Steel Corp | Hot-rolled steel sheet for ultra-thin steel sheet and method for manufacturing the same |
WO2000061312A1 (en) * | 1999-04-13 | 2000-10-19 | Wonjin Industrial Co., Ltd. | Rotary looper |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6037575A (en) | Method and apparatus for removing a defect in joined metal blocks | |
US5121873A (en) | Method of and apparatus for joining hot materials to be rolled to each other as well as continuous hot rolling method and system | |
JP5092966B2 (en) | Continuous pickling cold rolling equipment and manufacturing method of cold rolled material | |
US3835681A (en) | Continuous rolling mill | |
JP2528808B2 (en) | Continuous hot rolling method for billet | |
US6237205B1 (en) | Reversing cold rolling apparatus | |
JPS62161404A (en) | Continuous hot rolling method | |
JP4698132B2 (en) | Hot rolling equipment | |
JPH1034203A (en) | Continuous hot rolling plant | |
JPS62134102A (en) | Hot rolling installation | |
JP3331508B2 (en) | Continuous hot rolling equipment for steel and flying crop shear used therefor | |
JPH0810802A (en) | Method for joining sheet bar by rotationally sliding insert in fully continuous hot rolling | |
JP3023261B2 (en) | Equipment for joining billets | |
JPS59130603A (en) | Continuous hot rolling method | |
JPH0351486B2 (en) | ||
JPS6321561B2 (en) | ||
JP3360000B2 (en) | Joining method in continuous hot rolling equipment | |
JP2626642B2 (en) | Continuous hot rolling of billets | |
JP3478119B2 (en) | Hot rolling method for metal strip | |
JP3478118B2 (en) | Hot rolling method for metal strip | |
WO2001019543A1 (en) | Method of hot-rolling metal pieces | |
JPH05277508A (en) | Full continuous hot rolling method | |
JPH064164B2 (en) | Method for trimming joints in continuous hot rolling | |
JPS59185503A (en) | Continuous rolling method | |
JP2003112202A (en) | Completely continuous hot-rolling method |