JP2000176508A - Equipment for continuously manufacturing high-strength steel sheet - Google Patents
Equipment for continuously manufacturing high-strength steel sheetInfo
- Publication number
- JP2000176508A JP2000176508A JP10357107A JP35710798A JP2000176508A JP 2000176508 A JP2000176508 A JP 2000176508A JP 10357107 A JP10357107 A JP 10357107A JP 35710798 A JP35710798 A JP 35710798A JP 2000176508 A JP2000176508 A JP 2000176508A
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- Japan
- Prior art keywords
- rolling
- continuous
- strip
- steel sheet
- width
- Prior art date
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- Continuous Casting (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工業的にフェライ
ト粒組織を超微粒化し、引張強度の高い高強度鋼板を連
続的に製造する高強度鋼板連続製造設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-strength steel sheet continuous production facility for industrially producing a high-strength steel sheet having a high tensile strength by ultra-fine ferrite grain structure industrially.
【０００２】[0002]
【従来の技術】ＮＲＩＭ（National Research Institur
te for Metal：金材研）ＮＥＷＳにおいて、林 透氏は
「粒径１μｍ以下のフェライト粒組織の創製」と題し
て、鋼のフェライト組織を微細化することにより高強度
化する方法を開示している。これによると、結晶粒径ｄ
と降伏応力σy の間には次に示すホールペッチ則として
良く知られている強い相関関係がある。 σy ＝σ0 ＋ｋｄ-1/2 …（１） ここでσ0 とｋは定
数である。2. Description of the Related Art NRIM (National Research Institur)
At te for Metal: NEWS, Toru Hayashi at NEWS, entitled "Creation of a ferrite grain structure with a grain size of 1 μm or less," disclosed a method of increasing the strength by refining the ferrite structure of steel. I have. According to this, the crystal grain size d
And the yield stress σ y have a strong correlation well known as the following Hall-Petch rule. σ y = σ 0 + kd −1/2 (1) where σ 0 and k are constants.
【０００３】この関係を立証するため、林 透氏は、図
４に模式的に示すように、引張強さ４００ＭＰａ級の鋼
片（厚さ０．８ｍｍ，幅５ｍｍ，長さ２０ｍｍ）を、
（１）１１００℃で６０ｓ保持し水焼入れしてマルテン
サイト化し、（２）次いで、６４０℃に再加熱して、３
００ｓ保持し５０％圧延後、水冷し、（３）更に、圧延
時と伸長する方向を９０°変化させて、６４０℃で８０
％アンビル圧延し、これを水冷して高強度片を製造し
た。得られた高強度片は、粒径０．７７μｍの超微粒フ
ェライト組織となっており、元の粒径約１０μｍから大
幅な微粒化に成功し、引張強度を２倍にできる可能性が
あることがわかった。[0003] To prove this relationship, Toru Hayashi, as schematically shown in FIG. 4, used a 400 MPa class steel slab (0.8 mm thick, 5 mm wide, 20 mm long).
(1) Hold at 1100 ° C. for 60 s and martensite by water quenching. (2) Then, reheat to 640 ° C.
(3) Further, the direction of elongation during rolling was changed by 90 °, and 80% at 640 ° C.
% Anvil rolling, and water-cooled to produce a high-strength piece. The obtained high-strength piece has an ultrafine ferrite structure with a particle size of 0.77 μm, and it has been possible to significantly reduce the particle size from the original particle size of approximately 10 μm, and possibly double the tensile strength. I understood.
【０００４】[0004]
【発明が解決しようとする課題】一方、従来の高強度化
は、特開平１０−８１３８号公報，特開平１０−１６８
５４２号公報に記載されているように合金元素の増量に
よるところが大きく、合金要素を増量すると溶接性が劣
化するだけでなく、リサイクルが困難となる。また、特
開平９−１２２８３９号のように、Ａｒ3 変態点とそれ
より２００℃高い温度との間で１０〜８０％の高圧下す
る手段も提案さてれいるが、大幅な引張強度の向上はで
きなかった。そこで上述したフェライト粒組織の微細化
手段が有望になるが、実験室レベルであり工業的には実
現が困難であった。On the other hand, conventional high strength is disclosed in JP-A-10-8138 and JP-A-10-168.
As described in Japanese Patent Application Publication No. 542, the effect of increasing the amount of alloying elements is large, and increasing the amount of alloying elements not only deteriorates weldability but also makes recycling difficult. As disclosed in Japanese Patent Application Laid-Open No. 9-122839, a means for reducing the pressure by 10% to 80% between the Ar 3 transformation point and a temperature 200 ° C. higher than that is proposed. could not. Therefore, the above-mentioned means for refining the ferrite grain structure is promising, but it is at the laboratory level and is difficult to realize industrially.
【０００５】本発明はかかる要望を満たすために創案さ
れたものである。すなわち、本発明の目的は、フェライ
ト粒組織の超微粒化を工業的に実現し、引張強度を大幅
に高めた高強度鋼板を連続的に製造することができる高
強度鋼板連続製造設備を提供することにある。[0005] The present invention has been devised to satisfy such a demand. That is, an object of the present invention is to provide a high-strength steel sheet continuous manufacturing facility capable of industrially realizing ultra-fine graining of a ferrite grain structure and continuously manufacturing a high-strength steel sheet having significantly increased tensile strength. It is in.
【０００６】[0006]
【課題を解決するための手段】本発明によれば、ストリ
ップを連続鋳造する双ロールストリップキャスターと、
鋳造されたストリップを約３００℃まで急冷してマルテ
ンサイトを析出させる急冷装置と、約６４０℃まで再加
熱する昇温装置と、鋳造方向に連続圧延する連続圧延装
置と、鋳造方向に直交する幅方向にバッチ圧延する幅方
向圧延装置と、幅方向圧延装置の入側及び出側に設けら
れたルーパー装置と、連続圧延及び幅方向圧延した高強
度ストリップを巻き取るコイラー装置と、を備え、連続
圧延装置と幅方向圧延装置の一方で約５０％の圧延を
し、次いで他方で約８０％の圧延をする、ことを特徴と
する高強度鋼板連続製造設備が提供される。According to the present invention, a twin roll strip caster for continuously casting a strip,
A quenching device for rapidly cooling the cast strip to about 300 ° C. to precipitate martensite, a heating device for reheating to about 640 ° C., a continuous rolling device for continuously rolling in the casting direction, and a width perpendicular to the casting direction A width direction rolling device for batch rolling in the direction, a looper device provided on the entrance side and the exit side of the width direction rolling device, and a coiler device for winding the high-strength strip that has been continuously rolled and width direction rolled, There is provided a high-strength steel sheet continuous manufacturing facility characterized in that about 50% of rolling is performed on one of a rolling mill and a width rolling mill, and then about 80% is rolled on the other.
【０００７】この構成により、双ロールストリップキャ
スターで連続鋳造したストリップを、急冷装置で約３０
０℃まで急冷してマルテンサイトを析出させ、次いで昇
温装置で約６４０℃まで再加熱することにより、フェラ
イト組織化することができる。更に連続圧延装置と幅方
向圧延装置で約５０％の圧延と約８０％の圧延をするこ
とにより、フェライト粒組織を超微粒化することができ
る。また、幅方向圧延装置の入側及び出側にルーパー装
置を設けることにより、バッチ圧延の幅方向圧延装置の
入側及び出側を連続化できる。従って、全体として、連
続鋳造から鋳造方向の連続圧延、及び幅方向の圧延を連
続化でき、引張強度を大幅に高めた高強度鋼板を連続的
に製造することができる。[0007] With this configuration, a strip continuously cast by a twin-roll strip caster is cooled by a quenching device to about 30 minutes.
By rapidly cooling to 0 ° C. to precipitate martensite, and then reheating to about 640 ° C. with a heating device, a ferrite structure can be formed. Further, by performing about 50% rolling and about 80% rolling with a continuous rolling machine and a width rolling machine, it is possible to make the ferrite grain structure ultrafine. Further, by providing a looper device on the entrance side and the exit side of the width direction rolling device, the entrance side and the exit side of the width direction rolling device of the batch rolling can be made continuous. Therefore, as a whole, continuous casting, continuous rolling in the casting direction, and rolling in the width direction can be continuous, and a high-strength steel sheet having significantly increased tensile strength can be continuously produced.
【０００８】本発明の好ましい実施形態によれば、双ロ
ールストリップキャスター、急冷装置、昇温装置、入側
ルーパー装置、幅方向圧延装置、出側ルーパー装置、連
続圧延装置、コイラー装置の順で配列され、幅方向圧延
装置で約５０％の圧延をし、連続圧延装置で約８０％の
圧延をする。この構成により、幅方向圧延装置による圧
延で発生する凸凹を、連続圧延装置で均一化することが
でき、製造した高強度鋼板の板厚の均一性を高めること
ができる。According to a preferred embodiment of the present invention, a twin roll strip caster, a quenching device, a heating device, an inlet looper device, a width rolling device, an outlet looper device, a continuous rolling device, and a coiler device are arranged in this order. Then, about 50% of the rolling is performed by the width direction rolling device, and about 80% of the rolling is performed by the continuous rolling device. With this configuration, unevenness generated by rolling by the width direction rolling device can be made uniform by the continuous rolling device, and the uniformity of the thickness of the manufactured high-strength steel sheet can be increased.
【０００９】また、双ロールストリップキャスター、急
冷装置、昇温装置、連続圧延装置、入側ルーパー装置、
幅方向圧延装置、出側ルーパー装置、コイラー装置の順
で配列され、連続圧延装置で約５０％の圧延をし、幅方
向圧延装置で約８０％の圧延をしてもよい。更に、前記
幅方向圧延装置はストリップの幅方向に移動しながら圧
延することが好ましい。Further, twin roll strip casters, a quenching device, a heating device, a continuous rolling device, an entrance looper device,
It is arranged in the order of the width direction rolling device, the exit side looper device, and the coiler device, and the continuous rolling device may perform about 50% rolling, and the width direction rolling device may perform about 80% rolling. Further, it is preferable that the width direction rolling device performs rolling while moving in the width direction of the strip.
【００１０】幅方向圧延装置を固定しストリップを板幅
方向に移動させることは大掛かりな設備が必要となるの
で、幅方向圧延装置をストリップの板幅方向に移動し
て、板幅方向の圧延を行なう。[0010] Since large-scale equipment is required to fix the width-direction rolling device and move the strip in the width direction of the strip, the width-direction rolling device is moved in the width direction of the strip to perform rolling in the width direction of the strip. Do.
【００１１】[0011]
【発明の実施の形態】以下、本発明の好ましい実施形態
を図面を参照して説明する。なお、各図において共通す
る部分には同一の符号を付し、重複した説明を省略す
る。図１は、本発明の高強度鋼板連続製造設備の第１実
施形態を示す構成図である。この図に示すように、本発
明の高強度鋼板連続製造設備は、双ロールストリップキ
ャスター１、急冷装置２、昇温装置３、入側ルーパー装
置４、幅方向圧延装置５、出側ルーパー装置６、連続圧
延装置７、及びコイラー装置８を備えている。また、こ
の実施形態では、双ロールストリップキャスター１、急
冷装置２、昇温装置３、入側ルーパー装置４、幅方向圧
延装置５、出側ルーパー装置６、連続圧延装置７、コイ
ラー装置８の順で配列されている。なお、９はシャー
（切断機）である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In addition, the same reference numerals are given to the common parts in the respective drawings, and the duplicate description will be omitted. FIG. 1 is a configuration diagram illustrating a first embodiment of a high-strength steel sheet continuous manufacturing facility of the present invention. As shown in this figure, the continuous high-strength steel sheet manufacturing equipment of the present invention comprises a twin roll strip caster 1, a quenching device 2, a temperature raising device 3, an entrance looper device 4, a width direction rolling device 5, and an exit looper device 6. , A continuous rolling device 7 and a coiler device 8. In this embodiment, the twin roll strip caster 1, the quenching device 2, the temperature raising device 3, the entrance looper device 4, the width direction rolling device 5, the exit side looper device 6, the continuous rolling device 7, and the coiler device 8 are arranged in this order. It is arranged in. In addition, 9 is a shear (cutting machine).
【００１２】双ロールストリップキャスター１は、２つ
のロールの間から溶湯を押し出して１〜２ｍｍの薄肉の
被圧延材（ストリップ）を連続鋳造する。急冷装置２
は、冷却水を噴射して鋳造されたストリップを約２００
〜３００℃まで急冷してマルテンサイトを析出させる。
昇温装置３は、急冷してマルテンサイトを析出させたス
トリップを約６４０℃まで再加熱してフェライト組織化
する。また、この例では、上下に配置したロールの間を
ストリップを通して、ストリップのバッファーの役目も
兼ねている。The twin roll strip caster 1 extrudes a molten metal from between two rolls, and continuously casts a thin rolled material (strip) of 1 to 2 mm. Rapid cooling device 2
Injects cooling water into the cast strip for about 200
Rapid cooling to ~ 300 ° C to precipitate martensite.
The temperature raising device 3 reheats the strip on which martensite is precipitated by rapid cooling to about 640 ° C. to form a ferrite structure. Further, in this example, the strip passes between the rolls arranged vertically and also serves as a buffer for the strip.
【００１３】幅方向圧延装置５は、約６４０℃まで再加
熱されてフェライト組織化されたストリップを鋳造方向
に直交する幅方向にバッチ圧延する。また、このバッチ
圧延において、約５０％の圧延をする。入側ルーパー装
置４と出側ルーパー装置６は、幅方向圧延装置５の前後
に配置され、バッチ圧延の幅方向圧延装置５の入側及び
出側を連続化できるように、ストリップの弛みを内部に
吸収するようになっている。連続圧延装置７は、この例
では４段ロール圧延機であり、鋳造方向に連続圧延す
る。また、この連続圧延装置で約８０％の圧延をする。
コイラー装置８は、連続圧延及び幅方向圧延した高強度
ストリップを巻き取る。The widthwise rolling device 5 batch-rolls the ferrite-structured strip reheated to about 640 ° C. in the widthwise direction perpendicular to the casting direction. In this batch rolling, about 50% rolling is performed. The entrance-side looper device 4 and the exit-side looper device 6 are disposed before and after the width-direction rolling device 5, and the slack of the strip is internally set so that the entrance side and the exit side of the width-direction rolling device 5 for batch rolling can be continuous. Is to be absorbed. The continuous rolling device 7 is a four-roll mill in this example, and performs continuous rolling in the casting direction. In addition, about 80% of the rolling is performed by the continuous rolling apparatus.
The coiler device 8 winds the high-strength strip continuously rolled and width-rolled.
【００１４】上述した構成の高強度鋼板連続製造設備に
より、双ロールストリップキャスター１で連続鋳造した
ストリップを、急冷装置２で約３００℃まで急冷してマ
ルテンサイトを析出させ、次いで昇温装置３で約６４０
℃まで再加熱することにより、フェライト組織化するこ
とができる。更に幅方向圧延装置５と連続圧延装置７と
で約５０％の圧延と約８０％の圧延をすることにより、
フェライト粒組織を超微粒化することができる。また、
幅方向圧延装置５の入側及び出側にルーパー装置４，６
を設けることにより、バッチ圧延の幅方向圧延装置５の
入側及び出側を連続化できる。従って、全体として、連
続鋳造から鋳造方向の連続圧延、及び幅方向の圧延を連
続化でき、引張強度を大幅に高めた高強度鋼板を連続的
に製造することができる。また、図１のように、幅方向
圧延装置５の後に連続圧延装置７を設け、幅方向圧延装
置５で約５０％の圧延をし、連続圧延装置７で約８０％
の圧延をすることにより、幅方向圧延装置による圧延で
発生する凸凹を、連続圧延装置で均一化することがで
き、製造した高強度鋼板の板厚の均一性を高めることが
できる。The strip continuously cast by the twin-roll strip caster 1 is rapidly cooled to about 300 ° C. by the rapid cooling device 2 to precipitate martensite by the high-strength steel sheet continuous manufacturing equipment having the above-described configuration, and then the martensite is precipitated by the temperature raising device 3. About 640
By reheating to ° C., a ferrite structure can be formed. Further, by performing about 50% rolling and about 80% rolling in the width direction rolling device 5 and the continuous rolling device 7,
The ferrite grain structure can be made ultrafine. Also,
Looper devices 4 and 6 are provided on the entry side and the exit side of the width direction rolling device 5.
Is provided, the entry side and the exit side of the width direction rolling device 5 of the batch rolling can be made continuous. Therefore, as a whole, continuous casting, continuous rolling in the casting direction, and rolling in the width direction can be continuous, and a high-strength steel sheet having significantly increased tensile strength can be continuously produced. Also, as shown in FIG. 1, a continuous rolling device 7 is provided after the width-direction rolling device 5, and about 50% of the rolling is performed by the width-direction rolling device 5, and about 80% by the continuous rolling device 7.
By rolling, unevenness generated by rolling by the width direction rolling device can be made uniform by the continuous rolling device, and the uniformity of the thickness of the manufactured high-strength steel sheet can be increased.
【００１５】図２は、本発明の高強度鋼板連続製造設備
の第２実施形態を示す構成図である。この例では第１実
施形態と比べて、幅方向圧延装置５と連続圧延装置７の
配列順序が逆になっている。すなわち、双ロールストリ
ップキャスター１、急冷装置２、昇温装置３、連続圧延
装置７、入側ルーパー装置４、幅方向圧延装置５、出側
ルーパー装置６、コイラー装置８の順で配列され、連続
圧延装置７で約５０％の圧延をし、幅方向圧延装置５で
約８０％の圧延する。この構成によっても、連続圧延装
置７と幅方向圧延装置５で約５０％の圧延と約８０％の
圧延をすることにより、フェライト粒組織を超微粒化す
ることができ、全体として、連続鋳造から鋳造方向の連
続圧延、及び幅方向の圧延を連続化でき、引張強度を大
幅に高めた高強度鋼板を連続的に製造することができ
る。FIG. 2 is a block diagram showing a second embodiment of the continuous production equipment for high-strength steel sheets of the present invention. In this example, the arrangement order of the width direction rolling device 5 and the continuous rolling device 7 is reversed as compared with the first embodiment. That is, the twin roll strip caster 1, the quenching device 2, the temperature raising device 3, the continuous rolling device 7, the entrance-side looper device 4, the width-direction rolling device 5, the exit-side looper device 6, and the coiler device 8 are arranged in this order, and are continuously arranged. The rolling device 7 performs about 50% rolling, and the width direction rolling device 5 performs about 80% rolling. Also according to this configuration, by performing approximately 50% rolling and approximately 80% rolling in the continuous rolling device 7 and the widthwise rolling device 5, the ferrite grain structure can be ultra-fine-grained. Continuous rolling in the casting direction and rolling in the width direction can be continuous, and a high-strength steel sheet with significantly increased tensile strength can be continuously produced.
【００１６】図３は、図１及び図２のＸ−Ｘ矢視図であ
る。この図に示すように、幅方向圧延機５は、「Ｃ」字
型の剛性の大きなフレーム１１の開口端に軸箱１４を設
け、１対のワークロール１２と１対のバックアップロー
ル１３とを備え、下部に設けた車輪１５によりレール１
６上を図に矢印で示すように、ストリップ（被圧延材）
１０の幅方向（圧延方向に直角方向）に往復してストリ
ップ１０を幅方向に圧延する。圧延量は大きく、例えば
８０％程度であり、このためワークロール１２の径を小
さくし高圧下を可能にしている。また、高圧下により幅
の伸びが大きくなるので、フレーム１１の懐を大きく
し、かつ大きな剛性を持たしている。FIG. 3 is a view taken along the line XX of FIGS. 1 and 2. As shown in this figure, the width direction rolling mill 5 is provided with an axle box 14 at an open end of a “C” -shaped rigid frame 11 having a pair of work rolls 12 and a pair of backup rolls 13. The rail 1 is provided by wheels 15 provided at the bottom.
6 Strip (rolled material) as indicated by the arrow in the figure
The strip 10 is rolled in the width direction by reciprocating in the width direction of 10 (direction perpendicular to the rolling direction). The amount of rolling is large, for example, about 80%. Therefore, the diameter of the work roll 12 is reduced to enable high pressure. Further, since the width of the frame 11 is increased under high pressure, the frame 11 has a large pocket and a large rigidity.
【００１７】なお、図３では幅方向圧延機５は４段圧延
機の場合を示したが、圧下量に応じてさらに多段圧延機
とする。また、その他の高圧下圧延機構を適用してもよ
い。また、本発明は上述した実施形態に限定されず、本
発明の要旨を逸脱しない範囲で種々に変更することがで
きる。Although FIG. 3 shows a case where the width direction rolling mill 5 is a four-high rolling mill, a multi-high rolling mill is further used in accordance with the rolling reduction. Further, another high-pressure rolling mechanism may be applied. Further, the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist of the present invention.
【００１８】[0018]
【発明の効果】上述したように、本発明の高強度鋼板連
続製造設備は、フェライト粒組織の超微粒化を工業的に
実現し、引張強度を大幅に高めた高強度鋼板を連続的に
製造することができる、優れた効果を有する。As described above, the continuous production equipment for high-strength steel sheets of the present invention realizes ultra-fine ferrite grain structure industrially and continuously produces high-strength steel sheets with significantly increased tensile strength. Can have excellent effect.
【図１】本発明の高強度鋼板連続製造設備の第１実施形
態を示す構成図である。FIG. 1 is a configuration diagram showing a first embodiment of a high-strength steel sheet continuous production facility of the present invention.
【図２】本発明の高強度鋼板連続製造設備の第２実施形
態を示す構成図である。FIG. 2 is a configuration diagram showing a second embodiment of the continuous high-strength steel sheet manufacturing facility of the present invention.
【図３】図２のＸ−Ｘ断面図である。FIG. 3 is a sectional view taken along line XX of FIG. 2;
【図４】フェライト粒組織細流化方法の原理を示す図で
ある。FIG. 4 is a diagram showing the principle of a ferrite grain structure trickling method.
１ 双ロールストリップキャスター ２ 急冷装置 ３ 昇温装置 ４ 入側ルーパー装置 ５ 幅方向圧延装置 ６ 出側ルーパー装置 ７ 連続圧延装置 ８ コイラー装置 ９ シャー １０ ストリップ（圧延材） １１ フレーム １２ ワークロール １３ バックアップロール １４ 軸箱 １５ 車輪 １６ レール Reference Signs List 1 twin roll strip caster 2 quenching device 3 heating device 4 entrance looper device 5 width direction rolling device 6 exit looper device 7 continuous rolling device 8 coiler device 9 shear 10 strip (rolled material) 11 frame 12 work roll 13 backup roll 14 Axle box 15 Wheel 16 Rail
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4E002 AA04 AD02 BC05 BC10 BD03 CB01 4E004 DA13 DB03 SB04 SE01 SE02 SE03 TA07 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4E002 AA04 AD02 BC05 BC10 BD03 CB01 4E004 DA13 DB03 SB04 SE01 SE02 SE03 TA07
Claims (4)
リップキャスターと、鋳造されたストリップを約３００
℃まで急冷してマルテンサイトを析出させる急冷装置
と、約６４０℃まで再加熱する昇温装置と、鋳造方向に
連続圧延する連続圧延装置と、鋳造方向に直交する幅方
向にバッチ圧延する幅方向圧延装置と、幅方向圧延装置
の入側及び出側に設けられたルーパー装置と、連続圧延
及び幅方向圧延した高強度ストリップを巻き取るコイラ
ー装置と、を備え、連続圧延装置と幅方向圧延装置の一
方で約５０％の圧延をし、次いで他方で約８０％の圧延
をする、ことを特徴とする高強度鋼板連続製造設備。1. A twin roll strip caster for continuous casting of a strip, and a cast strip of about 300
Quenching device for quenching to martensite by quenching to ℃, heating device for reheating to about 640 ° C, continuous rolling device for continuous rolling in casting direction, width direction for batch rolling in width direction orthogonal to casting direction A rolling device, a looper device provided on the entrance side and the exit side of the width direction rolling device, and a coiler device for winding a high-strength strip that has been continuously rolled and width direction rolled, and a continuous rolling device and a width direction rolling device. A high-strength steel sheet continuous manufacturing facility, wherein one side is rolled by about 50% and the other side is rolled by about 80%.
置、昇温装置、入側ルーパー装置、幅方向圧延装置、出
側ルーパー装置、連続圧延装置、コイラー装置の順で配
列され、幅方向圧延装置で約５０％の圧延をし、連続圧
延装置で約８０％の圧延をする、ことを特徴とする請求
項１に記載の高強度鋼板連続製造設備。2. A twin roll strip caster, a quenching device, a heating device, an inlet looper device, a width rolling device, an outlet looper device, a continuous rolling device, and a coiler device are arranged in this order. 2. The high-strength steel sheet continuous production equipment according to claim 1, wherein the high-strength steel sheet is rolled by 50% and rolled by about 80% by a continuous rolling device.
置、昇温装置、連続圧延装置、入側ルーパー装置、幅方
向圧延装置、出側ルーパー装置、コイラー装置の順で配
列され、連続圧延装置で約５０％の圧延をし、幅方向圧
延装置で約８０％の圧延する、ことを特徴とする請求項
１に記載の高強度鋼板連続製造設備。3. A twin-roll strip caster, a quenching device, a heating device, a continuous rolling device, an entrance looper device, a width direction rolling device, an exit looper device, and a coiler device are arranged in this order. 2. The high-strength steel sheet continuous manufacturing equipment according to claim 1, wherein the high-strength steel sheet is rolled to about 80% by a width direction rolling device.
向に移動しながら圧延することを特徴とする請求項１乃
至３に記載の高強度鋼板連続製造設備。4. The high-strength steel sheet continuous production equipment according to claim 1, wherein the width-direction rolling device performs rolling while moving in a width direction of the strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10357107A JP2000176508A (en) | 1998-12-16 | 1998-12-16 | Equipment for continuously manufacturing high-strength steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10357107A JP2000176508A (en) | 1998-12-16 | 1998-12-16 | Equipment for continuously manufacturing high-strength steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000176508A true JP2000176508A (en) | 2000-06-27 |
Family
ID=18452424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10357107A Pending JP2000176508A (en) | 1998-12-16 | 1998-12-16 | Equipment for continuously manufacturing high-strength steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000176508A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1918403A1 (en) * | 2006-10-30 | 2008-05-07 | ThyssenKrupp Steel AG | Process for manufacturing steel flat products from a steel forming martensitic structure |
| CN106282495A (en) * | 2016-10-27 | 2017-01-04 | 贵州大学 | Medium high carbon chrome-vanadium steel is formed the process of micro/nano-scale twin crystal martensite |
| US11225697B2 (en) | 2014-12-19 | 2022-01-18 | Nucor Corporation | Hot rolled light-gauge martensitic steel sheet and method for making the same |
-
1998
- 1998-12-16 JP JP10357107A patent/JP2000176508A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1918403A1 (en) * | 2006-10-30 | 2008-05-07 | ThyssenKrupp Steel AG | Process for manufacturing steel flat products from a steel forming martensitic structure |
| WO2008052918A1 (en) * | 2006-10-30 | 2008-05-08 | Thyssenkrupp Steel Ag | Method for manufacturing flat steel products from a steel forming a martensitic structure |
| US11225697B2 (en) | 2014-12-19 | 2022-01-18 | Nucor Corporation | Hot rolled light-gauge martensitic steel sheet and method for making the same |
| CN106282495A (en) * | 2016-10-27 | 2017-01-04 | 贵州大学 | Medium high carbon chrome-vanadium steel is formed the process of micro/nano-scale twin crystal martensite |
| CN106282495B (en) * | 2016-10-27 | 2018-03-27 | 贵州大学 | The process of micro/nano-scale twin crystal martensite is formed in medium high carbon chrome-vanadium steel |
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