JPH0615086B2 - Shaped steel guiding device and universal rolling mill equipped with the device - Google Patents
Shaped steel guiding device and universal rolling mill equipped with the deviceInfo
- Publication number
- JPH0615086B2 JPH0615086B2 JP1029995A JP2999589A JPH0615086B2 JP H0615086 B2 JPH0615086 B2 JP H0615086B2 JP 1029995 A JP1029995 A JP 1029995A JP 2999589 A JP2999589 A JP 2999589A JP H0615086 B2 JPH0615086 B2 JP H0615086B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- flange
- rolling mill
- profile
- web
- 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
Classifications
-
- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、Ｈ形、Ｉ形あるいは溝形の如き形鋼を熱間
圧延する場合にユニバーサル圧延機において発生し易い
形材のウエブ中心の偏りを効果的に防止できる誘導装置
およびその装置を備えた圧延機に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a web center of a profile which is likely to occur in a universal rolling mill when hot-rolling a shaped steel such as an H-shaped, I-shaped or grooved steel. The present invention relates to an induction device that can effectively prevent deviation and a rolling mill equipped with the device.
以下Ｈ形鋼を圧延する場合を例として説明する。The case of rolling H-section steel will be described below as an example.
（従来の技術） Ｈ形鋼を圧延にて製造する場合には、形材のウエブ厚さ
の中心位置をフランジ幅の中心位置になるべく一致させ
るように圧延すること、すなわちウエブ中心の偏りの発
生をできる限り抑制することが製品品質上からも極めて
重要であつて、これに関する先行文献として特公昭53-3
4578号公報が参照される。(Prior Art) When manufacturing H-section steel by rolling, it is necessary to roll so that the center position of the web thickness of the shape member coincides with the center position of the flange width as much as possible, that is, the deviation of the web center occurs. It is extremely important from the standpoint of product quality to suppress this as much as possible.
Reference is made to Japanese Patent No. 4578.
（発明が解決しようとする課題） ところで上記の公報に開示の技術は、形材の誘導を司る
設備の大型化が避けられないばかりでなく、ユニバーサ
ル圧延機の圧延ロールの中心から誘導装置に至るまでの
間隔が比較的大きいため、その間における変形が避けら
れず、しかも支持フレームの適切な調整を施したとして
もウエブ中心の偏りの是正量は、支持フレームの移動量
の５〜10％程度であり、形鋼の寸法精度を大幅に向上さ
せることは非常に困難であった。(Problems to be Solved by the Invention) In the technique disclosed in the above publication, not only is it inevitable that the equipment for guiding the profile is increased in size, but also from the center of the rolling roll of the universal rolling mill to the guiding device. Since the distance between the upper and lower sides is relatively large, deformation during that period is unavoidable, and even if the support frame is appropriately adjusted, the amount of correction of the deviation of the web center is about 5 to 10% of the amount of movement of the support frame. However, it was very difficult to significantly improve the dimensional accuracy of shaped steel.
形鋼を圧延する際に不可避なウエブ中心の偏り等の従来
の問題をコンパクトな仕組みをもって効果的に軽減ない
しは防止できる新規な誘導装置とその装置を備えた圧延
機を提案することがこの発明の目的である。It is possible to propose a novel induction device and a rolling mill equipped with the device, which can effectively reduce or prevent the conventional problems such as the deviation of the web center that is unavoidable when rolling shaped steel with a compact mechanism. Is the purpose.
（課題を解決するための手段） この発明は、ユニバーサル圧延機の入側から出側に至る
までの連続した長さ、又は該圧延機の入側から圧延ロー
ルのロール中心に至るまでの連続した長さを有し、フラ
ンジおよびウエブを有する形材のフランジの幅端面をそ
れぞれ上下に挟む左右一対の長尺ガイドとこれら左右各
々の長尺ガイドの上下における少なくとも一方を上下方
向に移動させる昇降手段を備える形鋼の誘導装置で圧延
材の上・下方向位置を規制するものであり、ここに上記
の長尺ガイドには、形材のフランジ幅端面におけるすり
きず防止のため該形材のフランジ幅端に当接して転動す
るガイドローラを設けるのがよい。(Means for Solving the Problem) The present invention has a continuous length from the inlet side to the outlet side of a universal rolling mill, or a continuous length from the inlet side of the rolling mill to the roll center of a rolling roll. A pair of left and right long guides which vertically sandwiches the width end faces of the flange of the profile having a flange and a web and a lifting means for vertically moving at least one of the left and right long guides. The above-mentioned long guide includes the flange of the profile for preventing scratches on the end face of the flange of the profile by means of a shape guide device equipped with It is preferable to provide a guide roller that rolls in contact with the width end.
またこの発明は、フランジおよびウエブを有する形材の
該ウエブを上下から挟むかたりでウエブ厚を圧下するロ
ール幅の変更可能な水平ロールと形材のフランジ外面か
らフランジ厚を圧下する左右一対の竪ロールを備えたユ
ニバーサル圧延機において、上記ユニバーサル圧延機の
入側から出側に至るまで、又は該圧延機の入側から圧延
ロールのロール中心に至るまでの連続した長さを有し、
形材のフランジ幅端面をそれぞれ上下に挟む左右一対の
長尺ガイドと、これら左右各々の長尺ガイドの上下少な
くとも一方を上下方向に移動させる昇降手段よりなる誘
導装置を配設したことを特徴とするユニバーサル圧延機
である。The present invention also relates to a horizontal roll having a roll width that can reduce the web thickness by sandwiching the web of a profile having a flange and a web from above and below, and a pair of left and right pairs that reduce the flange thickness from the flange outer surface of the profile. In a universal rolling mill equipped with a vertical roll, from the inlet side to the outlet side of the universal rolling mill, or having a continuous length from the inlet side of the rolling mill to the roll center of the rolling roll,
A pair of left and right long guides sandwiching the flange width end face of the shape member vertically, and a guide device including an elevating means for vertically moving at least one of the upper and lower sides of each of the left and right long guides are provided. It is a universal rolling mill.
さて第１図に、この発明に従う誘導装置を水平ロールＨ
および竪ロールＶを有するユニバーサル圧延機に組み込
んだ状態として模式的に示す。図中１，１′および２，
２′は、フランジｈａおよびウエブｈｂを有する形材Ａ
のフランジ幅端をそれぞれ上下に挟む左右一対の長尺ガ
イド、３は例えばスクリューロッドおよびギヤからなり
各ガイド対１，１′および２，２′の少なくとも一方
（この例では１および２）を上下に移動させる昇降手
段、４は竪ロールＶのロールチョックカバーであり、ガ
イド１および２はそれぞれロールチョックカバー４を左
右に挟む補強板を兼ねた案内リブ１ａ、２ａを介してカ
バー４に固定保持される昇降手段３のスクリューロッド
へ連結される。Now, referring to FIG. 1, the guide device according to the present invention is provided with a horizontal roll H.
Also, it is schematically shown as being installed in a universal rolling mill having a vertical roll V. 1, 1'and 2, in the figure
2 ', profile A with a flange h a and the web h b
A pair of left and right long guides 3 sandwiching the flange width ends of the upper and lower sides, for example, are composed of screw rods and gears, and at least one of the guide pairs 1, 1'and 2, 2 '(1 and 2 in this example) is vertically moved. Elevating means 4 for moving the roll chock cover 4 to the vertical roll V is a roll chock cover, and the guides 1 and 2 are fixedly held to the cover 4 via guide ribs 1a and 2a which also function as reinforcing plates for sandwiching the roll chock cover 4 on the left and right. It is connected to the screw rod of the elevating means 3.
第２図に上記の構成になる誘導装置のとくに長尺ガイド
１，１′および２，２′の配置状況を分かりやすく図解
した。FIG. 2 illustrates the arrangement of the long guides 1, 1'and 2, 2'of the guiding device having the above-described configuration in an easy-to-understand manner.
また第３図に、この発明に従う誘導装置の他の例を片側
半分のみについて模式的に示し、図中の５はかききず防
止用のガイドローラで、このローラ５は水平ロールとの
干渉防止のための水平ロールＨの入側および出側におい
て該ロールに可能な限り近接して設置される。Further, FIG. 3 schematically shows another example of the guiding device according to the present invention with respect to only one half, and 5 in the drawing is a guide roller for preventing scratches, and this roller 5 prevents interference with a horizontal roll. The horizontal rolls H are installed on the inlet side and the outlet side as close to the roll as possible.
（作 用） 従来Ｈ形鋼の圧延では、第４図に示すように竪ロールＶ
の左右からの圧下により形材Ａのフランジｈａの幅中心
とパスラインが上下の何れかへΔｈだけ移動することが
あり、これがウエブ中心の偏りの原因となる。とくにロ
ールやガイドの頻繁な取り替えを要することなく同一圧
延チャンス内で多種サイズの形鋼を圧延したり外幅一定
の形鋼を圧延するのに有利な圧延方式（特願昭63-15981
8号、特願昭63-156828 号参照）においてはその傾向は
一層著しい。(Operation) In the conventional rolling of H-section steel, as shown in FIG.
Width center of the pass line of the flange h a form material A by pressure from the right and left may move only Δh into either of the upper and lower, which causes a deviation of the web center. Especially, a rolling method that is advantageous for rolling shaped steels of various sizes and rolling shaped steels with a constant outer width within the same rolling chance without requiring frequent replacement of rolls and guides (Japanese Patent Application No. 63-15981).
8 and Japanese Patent Application No. 63-156828), the tendency is more remarkable.
この発明では、ユニバーサル圧延機の入側から出側に至
るまでの間またはその圧延材の入側から圧延ロールのロ
ール中心に至るまでの間に上述の如き構成になる誘導装
置を設けることとしたので形材を拘束した状態で少なく
とも圧延ロールのロール中心まで確実に誘導できるので
ウエブ中心の偏りは効果的に軽減される。In the present invention, the induction device having the above-described configuration is provided between the entrance side and the exit side of the universal rolling mill or between the entrance side of the rolled material and the roll center of the rolling roll. Therefore, it is possible to reliably guide at least the roll center of the rolling roll in a state in which the profile is restrained, so that the deviation of the web center is effectively reduced.
ここに形材Ａのフランジ幅をＢとし、長尺ガイドの上下
間隔をｂとしたとき、第５図に示すように形材Ａのフラ
ンジｈａが（ｂ−Ｂ）だけ上下の何れかに移動し、その
偏り量はパスラインと長尺ガイドの上下間隔ｂの中点が
一致している場合に最大で（ｂ−Ｂ）／２となる。Here the flange width of the frame members A and B, and vertical spacing of the elongate guide when is b, the flange h a of frame members A, as shown in FIG. 5 is (b-B) only one of the upper and lower The amount of deviation is maximum (b−B) / 2 when the midpoint of the vertical distance b between the pass line and the long guide is coincident.
従って各長尺ガイドの上下間隔ｂは、予め昇降手段３に
よって圧延すべき形材のフランジ幅Ｂになるべく近い値
に調整しておくことが肝要である。Therefore, it is important to adjust the vertical distance b between the long guides to a value as close as possible to the flange width B of the profile to be rolled by the elevating means 3 in advance.
第６図は、この発明に従う誘導装置を備えたユニバーサ
ル圧延機の模式を示すもので、この圧延機は、形材Ａの
ウエブｈｂを上下に挟むロール幅Ｗの変更可能な水平ロ
ールＨ′と形材Ａのフランジ外側を拘束する左右一対の
竪ロールＶを有し、水平ロールＨ′のロール幅Ｗおよび
竪ロールＶのロール間隔を適宜調整することによって、
ロールやガイドの頻繁な取り替えを要することなく外幅
一定の形鋼を製造したり、多種サイズの形鋼を同一圧延
チャンス内で製造するのに有利であり、特にウエブｈｂ
を高さ方向に圧下縮小する際に懸念されるウエブ中心の
大きな偏りの発生は回避され、寸法精度をより一層向上
させることができる。FIG. 6 shows a schematic diagram of a universal rolling mill equipped with a guiding device according to the present invention. This rolling mill has a horizontal roll H ′ with a roll width W between which a web h b of a profile A is vertically sandwiched. And a pair of left and right vertical rolls V for restraining the outside of the flange of the profile A, and by appropriately adjusting the roll width W of the horizontal roll H ′ and the roll interval of the vertical rolls V,
Or to produce outer width constant shape steel without requiring frequent replacement of the rolls and guide, it is advantageous to produce the structural steel of various sizes in the same rolling chance, especially web h b
It is possible to avoid the occurrence of a large deviation in the center of the web, which may occur when the sheet is reduced in the height direction, and it is possible to further improve the dimensional accuracy.
なお、この発明に従う誘導装置によれば第７図に示すよ
うに、形材Ａのパスラインと長尺ガイドの上下間隔ｂの
中点を意識的にΔｈだけずらすことによって、フランジ
の脚長の異なった特殊な用途の傾向を製造することもで
きる。According to the guiding device according to the present invention, as shown in FIG. 7, the leg length of the flange is changed by intentionally shifting the midpoint between the pass line of the profile A and the vertical interval b of the long guide by Δh. It is also possible to manufacture special application trends.
（実施例） 粗ユニバーサル圧延を経た第８図(a) に示す如き断面形
状になる形材（Ｗ１＝376mm，ｈ１＝200mm,R1=19.0mm，
ｔ１＝8.2mm，ｆ１＝14.8m，Θ＝５゜）を上掲第６図に
示した圧延機を用いて、圧延機におけるＷ２＝358mm 、
ｈ２＝202m 、R2＝16.0mm、ｔ２＝8.0mm,、f2＝14.0m
m、Θ＝０゜（第８図(b)参照）として圧延を行った。な
お、この実施例ではウエブ中心の偏り易いウエブ高さ方
向に圧縮する圧延を実施し、なおかつガイド詰まりを発
生させないように長尺ガイドと圧延材の余裕代を考慮し
た。(Example) A profile (W 1 = 376 mm, h 1 = 200 mm, R 1 = 19.0 mm, which has a cross-sectional shape as shown in FIG. 8 (a) after rough universal rolling,
t 1 = 8.2 mm, f 1 = 14.8 m, Θ = 5 °), using the rolling mill shown in FIG. 6 above, W 2 = 358 mm in the rolling mill,
h 2 = 202m, R 2 = 16.0mm, t 2 = 8.0mm, f 2 = 14.0m
Rolling was performed with m and Θ = 0 ° (see FIG. 8 (b)). In this embodiment, rolling is performed by compressing in the web height direction where the center of the web is easily deviated, and the margin of the long guide and the rolled material is taken into consideration so as not to cause guide clogging.
その結果、長尺ガイドを使用しなかった同一条件での圧
延では、ウエブ中心の偏りが平均 ６．４mmであるのに
対し、この発明では±２．０mm程度であり、しかもそれ
が形鋼の全長にわたりほぼ同じ傾向・寸法で安定してい
ることが確かめられた。As a result, in the rolling under the same conditions without using the long guide, the deviation of the center of the web is 6.4 mm on average, whereas in the present invention, it is about ± 2.0 mm, which is more than that of the shaped steel. It was confirmed that it was stable with almost the same tendency and size over the entire length.
（発明の効果） この発明によれば、従来形鋼の圧延において回避するの
が難しかったウエブ中心の偏りを設備の大型化を伴うこ
となく軽減して、形鋼製品の寸法精度を有利に向上で
き、とくにフリーサイズ化を狙ったウエブ高さの縮小、
拡大といった特殊な圧延・条件においてその効果は非常
に大きい。(Effect of the Invention) According to the present invention, the deviation of the center of the web, which was difficult to avoid in the rolling of the conventional shaped steel, is reduced without increasing the size of the equipment, and the dimensional accuracy of the shaped steel product is advantageously improved. It is possible to reduce the height of the web, especially for free size.
The effect is very large under special rolling conditions such as expansion.
第１図(a) (b) は、この発明に従う誘導装置の構成説明
図、 第２図は、この発明に従う誘導装置のとくに長尺ガイド
の取りつけ状況を示した図、 第３図(a) (b)は、この発明に従う誘導装置の他の例を
示した図、 第４図および第５図は、ウエブ中心の偏り発生状況の説
明図、 第６図は、この発明に従う誘導装置を備えたユニバーサ
ル圧延機の模式図、 第７図は、フランジ脚長の異なる形鋼を製造する場合の
圧延要領説明図、 第８図 (a)、(b) は、実施例で使用した形材及び圧延機
の模式図である。 １，１′、２，２′……長尺ガイド ３……昇降手段 ４……ロールチョックカバー ５……ガイドローラ Ａ……形材 Ｈ，Ｈ′……水平ロール Ｖ……竪ロールFIGS. 1 (a) and (b) are explanatory views of the configuration of the guiding device according to the present invention, FIG. 2 is a view showing a mounting condition of a long guide of the guiding device according to the present invention, and FIG. 3 (a). (b) is a diagram showing another example of the guiding device according to the present invention, FIGS. 4 and 5 are explanatory views of a situation of deviation of the center of the web, and FIG. 6 is provided with a guiding device according to the present invention. Fig. 7 is a schematic diagram of a universal rolling mill, Fig. 7 is an explanatory diagram of a rolling procedure for manufacturing shaped steels having different flange leg lengths, and Figs. 8 (a) and 8 (b) are profile members and rolled materials used in Examples. It is a schematic diagram of a machine. 1, 1 ', 2, 2' ... Long guide 3 ... Lifting means 4 ... Roll chock cover 5 ... Guide roller A ... Profile H, H '... Horizontal roll V ... Vertical roll
Claims (3)
までの連続した長さ、又は該圧延機の入側から圧延ロー
ルのロール中心に至るまでの連続した長さを有し、Ｈ型
鋼等フランジおよびウエブを有する形材のフランジの幅
端面をそれぞれ上下に挟む左右一対の長尺ガイドと、こ
れら左右各々の長尺ガイドの上下における少なくとも一
方を上下方向に移動させる昇降手段を備える、形鋼の誘
導装置。1. An H-shaped steel having a continuous length from an inlet side to an outlet side of a universal rolling mill or a continuous length from an inlet side of the rolling mill to a roll center of a rolling roll. A pair of left and right long guides that vertically sandwich the width end surfaces of the flange of a profile having a uniform flange and a web, and elevating means that vertically moves at least one of the left and right long guides. Steel induction device.
して転動するガイドローラを有する請求項１記載の装
置。2. The apparatus according to claim 1, wherein the long guide has a guide roller that abuts against a flange width end of the shape member and rolls.
エブを上下から挟むロール幅の変更可能な水平ロールと
形材のフランジ面外側からフランジ厚みを圧下する左右
一対の竪ロールを備えたユニバーサル圧延機において、
上記ユニバーサル圧延機の入側から出側に至るまでの連
続した長さ、又は該圧延機の入側から圧延ロールのロー
ル中心に至るまでの連続した長さを有し、形材のフラン
ジ幅端面をそれぞれ上下に挟む左右一対の長尺ガイド
と、これら左右各々の長尺ガイドの上下における少なく
とも一方を上下方向に移動させる昇降手段よりなる誘導
装置を配設したことを特徴とするユニバーサル圧延機。3. A universal roll provided with a horizontal roll of a profile having a flange and a web that can change the roll width to sandwich the web from above and below, and a pair of left and right vertical rolls that reduce the flange thickness from the outside of the flange surface of the profile. In the machine
The continuous width from the inlet side to the outlet side of the universal rolling mill, or the continuous length from the inlet side of the rolling mill to the roll center of the rolling roll, the flange width end surface of the profile A universal rolling mill is provided with a pair of left and right long guides that sandwich each of the above and below, and a guide device that includes an elevating means that vertically moves at least one of the upper and lower of the left and right long guides.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029995A JPH0615086B2 (en) | 1989-02-10 | 1989-02-10 | Shaped steel guiding device and universal rolling mill equipped with the device |
| US07/367,947 US5009094A (en) | 1988-06-27 | 1989-06-19 | Method of rolling H-shaped steels |
| CA000603720A CA1333532C (en) | 1988-06-27 | 1989-06-23 | Rolling method of h-shaped steels |
| EP89111702A EP0348913B1 (en) | 1988-06-27 | 1989-06-27 | Rolling method of h-shaped steels |
| DE8989111702T DE68905679T2 (en) | 1988-06-27 | 1989-06-27 | METHOD FOR ROLLING DOUBLE T STEEL PROFILES. |
| KR1019890008905A KR970000369B1 (en) | 1988-06-27 | 1989-06-27 | Rolling method of h-shaped steels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029995A JPH0615086B2 (en) | 1989-02-10 | 1989-02-10 | Shaped steel guiding device and universal rolling mill equipped with the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02211908A JPH02211908A (en) | 1990-08-23 |
| JPH0615086B2 true JPH0615086B2 (en) | 1994-03-02 |
Family
ID=12291518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1029995A Expired - Fee Related JPH0615086B2 (en) | 1988-06-27 | 1989-02-10 | Shaped steel guiding device and universal rolling mill equipped with the device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615086B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698376B2 (en) * | 1989-09-29 | 1994-12-07 | 川崎製鉄株式会社 | Guide for rolling shaped steel |
| JPH0698377B2 (en) * | 1989-11-24 | 1994-12-07 | 川崎製鉄株式会社 | Shaped steel induction device |
| JP4811031B2 (en) * | 2006-01-27 | 2011-11-09 | Ｊｆｅスチール株式会社 | Universal rolling method for section steel |
| CN102125933A (en) * | 2010-12-24 | 2011-07-20 | 莱芜钢铁股份有限公司 | Universal mill type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6368204A (en) * | 1986-09-09 | 1988-03-28 | Kawasaki Steel Corp | Rolling device for wide flange beam |
-
1989
- 1989-02-10 JP JP1029995A patent/JPH0615086B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02211908A (en) | 1990-08-23 |
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