JPH0289501A - Rolling mill line - Google Patents
Rolling mill lineInfo
- Publication number
- JPH0289501A JPH0289501A JP23959188A JP23959188A JPH0289501A JP H0289501 A JPH0289501 A JP H0289501A JP 23959188 A JP23959188 A JP 23959188A JP 23959188 A JP23959188 A JP 23959188A JP H0289501 A JPH0289501 A JP H0289501A
- Authority
- JP
- Japan
- Prior art keywords
- web
- rolling
- width
- mill
- stock
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は同一ロールチャンス内で各種サイズのＩ］形
、溝形あるいはそれに類似した形鋼を製造するのに有利
な圧延機列に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rolling mill row advantageous for producing I]-shaped, channel-shaped, or similar sections of various sizes within the same roll machine. be.
（従来の技術）
形鋼の製造に関する先行技術としては例えば、特開昭６
２−１６１４０３号公報、特開昭５９−１３３９０２号
公報などが参照される。(Prior art) Examples of prior art related to the manufacture of shaped steel include JP-A No. 6
References may be made to JP-A No. 2-161403, JP-A-59-133902, and the like.
（発明が解決しようとする課題）
上記公報に開示の技術は、何れも形鋼用素材のウェブ部
に部分圧延を施して、同一ロールチャンス内でＨ形鋼等
のウェブ高さを自由に調整しようとするものであるが、
その調整量は高々２０＋ｎｍ程度であり、その自由度は
非常に小さく、またロールの頻繁な組替をしなければ圧
延に供する素材の選択幅を拡大できない不利があった。(Problems to be Solved by the Invention) The techniques disclosed in the above-mentioned publications apply partial rolling to the web portion of the material for section steel, and freely adjust the web height of H-section steel etc. within the same roll chance. I am trying to do this, but
The amount of adjustment is about 20+ nm at most, and the degree of freedom is very small, and there is a disadvantage that the selection range of materials to be rolled cannot be expanded unless the rolls are frequently changed.
圧延に供する素材の選択幅の拡大および形材の圧延時に
おけるウェブ幅の可変量の拡大を図り同一ロールチャン
ス内で多種サイズの形鋼を製造できる圧延機列を提案す
ることがこの発明の目的である。An object of the present invention is to propose a rolling mill row that can manufacture sections of various sizes within the same roll chance by expanding the selection range of materials to be rolled and increasing the amount of variation in web width during rolling of sections. It is.
（課題を解決するための手段）
この発明はフランジおよびウェブ部を有する形材の該ウ
ェブ部をその厚み方向に圧下するフラットロールを備え
たユニバーサル圧延機を設けて、このユニバーサル圧延
機の入側および出側に、ロール幅の変更自在な分割構造
になるウェブ厚み圧下用ロール対を備えたユニバーサル
圧延機をそれぞれ配設してなる圧延機列である。(Means for Solving the Problems) The present invention provides a universal rolling mill equipped with flat rolls that roll down the web portion of a section having a flange and a web portion in the thickness direction, and This is a rolling mill row in which universal rolling mills each equipped with a pair of web thickness reduction rolls having a split structure and a roll width changeable roll width are disposed on the exit side.
以下この発明をフランジおよびウェブを備えるＨ形鋼の
圧延を例にとって説明する。The present invention will be explained below by taking as an example the rolling of an H-section steel provided with a flange and a web.
第１図はこの発明に従う圧延機列を模式的に示したもの
で、図中Ｕ２は形鋼用素材（以下単に形材という）■の
ウェブ部Ｗをその厚み方向に圧下する通常のフラットロ
ール３を備えたユニバーサル圧延機でありこのユニバー
サル圧延機Ｕ２の上流および下流には、ロール幅の変更
が可能なウェブ厚み圧下用の分割ロール２および４を備
えたユニバーサル圧延機Ｕ１およびＵｒをそれぞれ備え
る。なおユニバーサル圧延機Ｕ、、Ｕ、の間に配置しで
あるＥ、はエツジヤ−圧延機である。Fig. 1 schematically shows a rolling mill row according to the present invention, and U2 in the figure is a normal flat roll that rolls down the web part W of the material for section steel (hereinafter simply referred to as the section) in its thickness direction. Upstream and downstream of this universal rolling mill U2, there are universal rolling mills U1 and Ur, respectively, each equipped with split rolls 2 and 4 for reducing the web thickness, the roll width of which can be changed. . Incidentally, E, which is disposed between the universal rolling mills U, , U, is an edger rolling mill.
（作 用）
上記の構成になる圧延機列を用い、まず粗圧延工程を経
た形材１のウェブ幅を拡大して所望の製品サイズに仕上
げるには、次の要領で行う。形材１のフランジ部Ｆをま
ず第２図に示すようにその両側より拘束した状態でＵｌ
ミルおよびＵ２ミルによる少なくとも１回の圧延を行
う。そしてこの圧延の最終パス（Ｕ２ ミル）では■
ロールによる圧下が加わらないようにしてウェブ部Ｗの
拡幅を行い、ついでＵｙ ミルにてフランジ起しを兼ね
た仕上げ圧延を行う。(Function) Using the rolling mill row configured as described above, the web width of the profile 1 that has undergone the rough rolling process is expanded to obtain a desired product size in the following manner. First, the flange part F of the profile 1 is restrained from both sides as shown in Fig. 2, and then
At least one rolling with a mill and a U2 mill is carried out. And in the final pass of this rolling (U2 mill)
The width of the web portion W is widened without being subjected to rolling reduction by the rolls, and then finish rolling is performed in a Uy mill that also serves as flanging.
次に形材１のウェブ幅を縮小する場合としては第３図に
示すようにＵｌおよびＵ２ミルによる少なくとも１回の
圧延を施し、次いでロール４のロール幅を予め所定幅に
縮小しであるＵ、ミルに通して形材１のウェブ部Ｗを■
ロールにてその幅方向に圧下、縮小しつつフランジ起し
を兼ねた仕上圧延を行う。なお、形材１のウェブ幅を拡
大も縮小もしない通常の圧延を行う場合には、第４図に
示すように、形材ｌにＵｌおよびＵ２ミルによる圧延を
少なくとも１回旋したのち該形材１のウェブ幅とほぼ同
等のロール幅に設定したロール４を備えるＵｒ ミルに
通して形材１のフランジ起しを兼ねた仕上圧延を行う。Next, in order to reduce the web width of the profile 1, as shown in FIG. , the web part W of profile 1 is passed through a mill.■
Finish rolling, which also serves as flanging, is performed while reducing and reducing the material in the width direction using rolls. In addition, when performing normal rolling without enlarging or reducing the web width of the profile 1, as shown in FIG. Finish rolling, which also serves as flanging, is performed on the profile 1 through an Ur mill equipped with a roll 4 having a roll width set to approximately the same width as the web width of the profile 1.
この発明の圧延機列は、とくにＵ、ミルにロール幅の可
変なウェブ厚み圧下用ロールを設けであるので圧延に供
する素材の選択幅が比較的広いという利点がある。なお
この発明ではＵ２ミルのウェブ厚み圧下用ロールとして
フラットロールを用いる例を示したがロール幅の可変な
分割ロールを配設してもかまわない。The rolling mill train of the present invention has the advantage that the selection range of materials to be rolled is relatively wide, especially since the U mill is provided with a roll for reducing the web thickness with a variable roll width. In this invention, an example is shown in which a flat roll is used as a roll for reducing the web thickness of the U2 mill, but a divided roll having a variable roll width may also be provided.
この場合、Ｕ、、Ｕ、ミルにおいては最終パス前までタ
ンデム圧延を行い、最終パス（０２ミル）でウェブ厚み
圧下用ロールのロール幅を狭くして、ウェブ幅の縮小圧
延を行い続いてＵ、ミルにてウェブ幅を縮小しつつフラ
ンジ起しを兼ねた仕上圧延を行えばウェブ幅の縮小量を
有利に拡大できる。In this case, tandem rolling is performed in U,, U, and mills until the final pass, and in the final pass (02 mil), the roll width of the web thickness reduction roll is narrowed to reduce the web width, and then U If finishing rolling, which also serves as flanging, is performed while reducing the web width in a mill, the amount of reduction in the web width can be advantageously increased.
（実施例）
サイズＨ＝４５０Ｘ２００Ｘ９Ｘ１２〜４５０ Ｘ ２
００ Ｘ １４ Ｘ ２８になるＨ形鋼の製造を試みた
。その結果形材のウェブ幅を拡大する場合についてはプ
ラス１６ｍｍまで、またウェブ幅の縮小を行う場合マイ
ナス４５ｍｍまでのＨ形鋼を製品不良を招くことな（製
造できることが確められた。(Example) Size H=450X200X9X12~450X2
An attempt was made to manufacture H-beam steel with dimensions of 00 x 14 x 28. As a result, it was confirmed that it was possible to manufacture H-beams up to +16 mm when expanding the web width of the profile, and up to -45 mm when reducing the web width without causing product defects.
（発明の効果）
この発明によれば同一ロールチャンス内で、適用素材の
選択幅および形材のウェブ幅の可変量を大きくして多種
サイズの形鋼を製造できる。またこの発明によればウェ
ブ高さ一定の形鋼を製造する場合ロールの摩耗等が生し
ても常に同一高さの形鋼を安定して製造できる。(Effects of the Invention) According to the present invention, it is possible to manufacture section steel of various sizes within the same roll chance by increasing the selection range of applicable materials and the variable amount of the web width of the section. Further, according to the present invention, when producing a section steel with a constant web height, even if roll wear occurs, the section steel can always be stably produced with the same height.
第１図はこの発明に従う圧延機列の模式図、第２図、第
３図および第４図は、この発明に従う圧延機列を用いた
際の圧下要領の説明図である。FIG. 1 is a schematic diagram of a rolling mill row according to the present invention, and FIGS. 2, 3, and 4 are explanatory diagrams of the rolling procedure when using the rolling mill row according to the present invention.
Claims (1)
をその厚み方向に圧下するフラットロールを備えたユニ
バーサル圧延機を設けて、このユニバーサル圧延機の入
側および出側に、ロール幅の変更自在な分割構造になる
ウェブ厚み圧下用ロール対を備えたユニバーサル圧延機
をそれぞれ配設してなる圧延機列。1. A universal rolling mill equipped with flat rolls that rolls down the web part of a section having a flange and a web part in its thickness direction is provided, and the width of the rolls can be freely changed on the entry and exit sides of the universal rolling mill. A rolling mill row consisting of universal rolling mills each equipped with a pair of web thickness reduction rolls that have a split structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23959188A JPH0289501A (en) | 1988-09-27 | 1988-09-27 | Rolling mill line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23959188A JPH0289501A (en) | 1988-09-27 | 1988-09-27 | Rolling mill line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0289501A true JPH0289501A (en) | 1990-03-29 |
Family
ID=17047051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23959188A Pending JPH0289501A (en) | 1988-09-27 | 1988-09-27 | Rolling mill line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0289501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343726A (en) * | 1991-10-02 | 1994-09-06 | Mannesmann Aktiengesellschaft | Rolling train for rolling girder sections |
-
1988
- 1988-09-27 JP JP23959188A patent/JPH0289501A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343726A (en) * | 1991-10-02 | 1994-09-06 | Mannesmann Aktiengesellschaft | Rolling train for rolling girder sections |
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