JPH074602B2 - Manufacturing equipment for shaped steel with flange - Google Patents
Manufacturing equipment for shaped steel with flangeInfo
- Publication number
- JPH074602B2 JPH074602B2 JP28682886A JP28682886A JPH074602B2 JP H074602 B2 JPH074602 B2 JP H074602B2 JP 28682886 A JP28682886 A JP 28682886A JP 28682886 A JP28682886 A JP 28682886A JP H074602 B2 JPH074602 B2 JP H074602B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- web
- shaped steel
- flange
- rolling
- 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
Landscapes
- Metal Rolling (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、フランジを有する形鋼のウエブ内巾を拡巾す
る装置に関する。Description: TECHNICAL FIELD The present invention relates to a device for widening an inner width of a web of a shaped steel having a flange.
［従来の技術］ 第６図はＨ形鋼の通常のユニバーサル圧延法を示す図で
ある。例えばＨ形鋼をユニバーサル圧延機で製造する際
は、ブレークダウンミル（図示せず）で粗成形された粗
形鋼片を、第６図（イ）に示す中間ユニバーサルミルの
水平ロール31でウエブを圧延し、同時に水平ロール31の
側壁と垂直ロール32でフランジを圧延する。又フランジ
の端部は第６図（ロ）に示すエッジャーミルのエッジャ
ーロール33で圧延加工する。第６図（ハ）は仕上げユニ
バーサルミルで、中間ユニバーサルミルやエッジャーミ
ルで数回圧延された後に仕上げの成形の圧延を行うミル
である。このユニバーサル圧延法では、ウエブは圧延方
向に延伸加工されるが、第６図（ニ）に示したウエブ内
巾Ｗを拡巾したり内巾寸法を調節する圧延加工は行われ
ない。[Prior Art] FIG. 6 is a view showing a general universal rolling method for H-section steel. For example, when H-section steel is manufactured by a universal rolling mill, a rough-shaped steel slab roughly formed by a breakdown mill (not shown) is web-wound by a horizontal roll 31 of an intermediate universal mill shown in FIG. And at the same time, the flange is rolled by the side wall of the horizontal roll 31 and the vertical roll 32. The end portion of the flange is rolled by the edger roll 33 of the edger mill shown in FIG. FIG. 6C shows a finish universal mill, which is a mill that performs finish forming rolling after being rolled several times by an intermediate universal mill or an edger mill. In this universal rolling method, the web is stretched in the rolling direction, but the rolling for expanding the inner width W of the web or adjusting the inner width dimension shown in FIG. 6D is not performed.
即ち製造するＨ形鋼のウエブ内巾Ｗを変える場合は、各
水平ロールを粗形鋼片やＨ形鋼のウエブ内巾Ｗにあった
別の水平ロールに組替えて圧延を行う。形鋼の圧延工場
では、Ｗ寸法が異なる多種類のＨ形鋼を製造するが、Ｗ
寸法が変る毎に水平ロールを組替える作業は極めて煩瑣
であり、又多本数の水平ロールの常備が余儀なくされる
こととなる。圧延するＨ形鋼のウエブ内巾寸法Ｗが変っ
ても、水平ロールを変えない方法に関し特開昭53-84856
号、特開昭53-83961号、特公昭58-57244号の技術が公知
である。この方法は、粗形鋼片の段階で、あるいは中間
・仕上工程で、そのウエブをフランジの方向に引張って
延伸することによりウエブ内巾Ｗを引き伸ばす方法であ
る。しかしこの方法はウエブ内巾を若干大きくする際に
は適当であるが、後述するごとくウエブが局部的に伸張
したりウエブの肉厚が不同になりやすい問題点がある。
ウエブの内巾を変える別の方法として特開昭59-133902
号、特開昭59-178101号が公知である。即ち圧延の途中
で第７図（イ）に示した余肉部35をウエブ上に圧延で形
成し、次にこの余肉部を平圧延して第７図（ロ）のごと
くウエブを拡げるものである。しかしこの方法における
余肉部35の部分圧延は、余肉部の圧延方向のメタルフロ
ーを伴うため、圧延後は余肉部に該当したウエブ面が波
状となり易い。又この方法ではウエブの拡巾量は余肉部
の余肉量に相応するため、成品のウエブ内巾の寸法精度
を確保するには余肉量の正確な形成が重要であるが、製
造するＨ形鋼が変る毎に安定して正確な余肉量を形成す
る圧延はユニバーサルミルでは厄介である。That is, when changing the web inner width W of the H-shaped steel to be manufactured, each horizontal roll is replaced with another horizontal roll suitable for the web inner width W of the rough shaped billet or the H-shaped steel, and rolling is performed. In a section rolling mill for shaped steel, various types of H shaped steel with different W dimensions are manufactured.
The work of changing the horizontal rolls each time the dimensions change is extremely troublesome, and a large number of horizontal rolls must be prepared. A method in which the horizontal roll is not changed even if the width W in the web of the H-shaped steel to be rolled is changed is disclosed.
The techniques of JP-A-53-83961 and JP-B-58-57244 are known. This method is a method of extending the inner width W of the web by pulling and stretching the web in the direction of the flange at the stage of the rough shaped steel slab or in the intermediate / finishing step. However, this method is suitable when the inner width of the web is slightly increased, but there are problems that the web is locally stretched and the thickness of the web is uneven as described later.
As another method of changing the inner width of the web, Japanese Patent Laid-Open No. 59-133902.
And JP-A-59-178101 are known. That is, in the course of rolling, the extra thickness portion 35 shown in FIG. 7 (a) is formed on the web by rolling, and then the extra thickness portion is flat-rolled to spread the web as shown in FIG. 7 (b). Is. However, since the partial rolling of the excess thickness portion 35 in this method involves a metal flow in the rolling direction of the excess thickness portion, the web surface corresponding to the excess thickness portion is likely to become wavy after rolling. Further, in this method, since the width expansion amount of the web corresponds to the surplus amount of the surplus portion, it is important to form the surplus amount accurately in order to ensure the dimensional accuracy of the inner width of the product. It is difficult for a universal mill to perform rolling to form a stable and accurate surplus amount each time the H-section steel changes.
［発明が解決しようとする問題点］ 本発明はウエブ内巾を簡易に変える事ができ、且つその
際ウエブの厚さが均一に保持できる、フランジを有する
形鋼の製造を目的としている。[Problems to be Solved by the Invention] An object of the present invention is to manufacture a shaped steel having a flange, in which the inner width of the web can be easily changed and the thickness of the web can be kept uniform.
［問題点を解決するための手段］ 第１図は本発明の装置例で（イ）はパスラインに直角な
縦断面を示す図（ロ）はパスラインの近傍のその側面を
示す図である。即ち本発明の要旨は第１図のロールチョ
ック１に設けた駒型ロール支持部２に傾斜して軸支され
形鋼３のフランジ内面とウエブに当接してウエブ内巾を
拡巾する駒型ロール４と、該ロールチョック１に設けた
ディスクロール支持部５に軸支され水平面が形鋼３のウ
エブに当接し且つ側面が左右の駒型ロール４に当接する
ディクスロール６を有し、左右の該駒型ロールと該ディ
スクロールが押し合って、形鋼のウエブ内巾を拡巾す
る、フランジを有する形鋼の製造装置である。尚本発明
における駒型ロールとは図面に示すように、円錐体を底
面と平行な面で切断して得られる、裁頭円錐体のロール
をいう。[Means for Solving the Problems] FIG. 1 shows an example of the apparatus of the present invention. (A) shows a vertical cross section perpendicular to the pass line. (B) is a view showing the side surface near the pass line. . That is, the gist of the present invention is a piece roll for expanding the inner width of the web by incliningly supported by the piece roll supporting portion 2 provided in the roll chock 1 shown in FIG. 1 and being in contact with the flange inner surface of the shaped steel 3 and the web. 4 and a disk roll 6 supported by a disk roll supporting portion 5 provided on the roll chock 1 and having a horizontal surface abutting the web of the shaped steel 3 and side surfaces abutting the left and right piece-shaped rolls 4. This is an apparatus for manufacturing a shaped steel having a flange, in which a piece-shaped roll and the disc roll are pressed against each other to widen the inner width of the web of the shaped steel. The piece roll in the present invention means a roll having a truncated cone shape obtained by cutting a cone along a plane parallel to the bottom surface as shown in the drawings.
［作用及び実施例］ 第２図は本発明の作用を示す模式図で、［Ａ］図は圧延
方向からみた正面模式図、［Ｂ］図は矢視イ−イの平面
模式図である。図中ａは駒型ロール４の上面、ｂは駒型
ロールの側面、Ｃは駒型ロールの最大直径面、斜線３は
Ｈ形鋼で、矢印は圧延方向である。駒型ロール４のＣ面
はＨ形鋼のフランジ内面と、最初ｄ点で当接し、駒型ロ
ールの回転（Ｈ形鋼の前進）と共に、駒型ロール上のｄ
点はｅ点に至り、Ｈ形鋼のウエブ内巾をl1からl2に拡巾
する。この際第２図［Ｂ］でｄ−ｄ′とｅ−ｅ′の間の
ウエブは、ウエブの拡巾に伴いフランジ方向に大きく引
張り加工されるが、この引張り応力だけではウエブは局
部的に延伸してウエブの厚さが不均一になり易い。ディ
スクロール６の側面ｆは、駒型ロール４の側面ｂと当接
して駒型ロール４の拡巾作用をバックアップするが、同
時にその水平面ｇはＨ形鋼のウエブに当接しウエブを厚
さ方向に加圧する。[Operation and Examples] FIG. 2 is a schematic view showing the operation of the present invention, [A] is a schematic front view as seen from the rolling direction, and [B] is a schematic plan view taken along the arrow ii. In the figure, a is the upper surface of the piece roll 4, b is the side surface of the piece roll, C is the maximum diameter surface of the piece roll, diagonal line 3 is H-shaped steel, and the arrow indicates the rolling direction. The C surface of the piece roll 4 first contacts the inner surface of the flange of the H-section steel at point d, and when the piece roll rotates (advance of the H-section steel), d on the piece roll
The point reaches point e, and the width of the H-section steel web is expanded from l 1 to l 2 . At this time, the web between d-d 'and e-e' in FIG. 2B is largely stretched in the direction of the flange as the web is widened. However, the tensile stress alone causes the web to be locally localized. The thickness of the web tends to become non-uniform when stretched. The side surface f of the disk roll 6 comes into contact with the side surface b of the piece roll 4 to back up the widening action of the piece roll 4, but at the same time, its horizontal surface g comes into contact with the web of the H-section steel to make the web thickness direction. Pressurize.
一般に拡巾量ΔＷはロールと材料の幾何学的位置関係で
決り、その拡巾メカニズムにより分離して拡巾量の成分
を表わすと下式のようになる。In general, the width expansion amount ΔW is determined by the geometrical positional relationship between the roll and the material, and the components of the width expansion amount are separated by the width expansion mechanism and expressed by the following formula.
拡巾量ΔＷ＝余肉部圧下による拡巾量＋余肉部引き伸ば
しによる拡巾量＋余肉部以外のウエブ引き伸ばしによる
拡巾量 ここで、引き伸ばし拡巾が大きくなるとウエブ厚さが不
均一となり、断面内のくびれを生じ、更に引き伸ばし拡
巾を増大するとウエブ破断に至ってしまう。逆に余肉部
圧下のみで拡巾を行うと、余肉圧下部に圧延方向のメタ
ルフローを伴うため、圧延方向の伸張を拘束されている
ウエブ面が座屈して波状となり易い。本発明のように駒
型ロール４とディスクロール６で引き伸ばし拡巾と余肉
圧下を同時に行うと、引き伸ばし作用により材料内部に
作用する応力と、余肉圧下作用により材料内部に作用す
る応力が相互にバランスするので変形がスムースとな
り、ウエブ厚みが均一となる。更に付随効果とし拡巾加
工に伴う材料の異常変形や表面疵の問題もなく、且つ拡
巾に要する荷重や加工エネルギーも低減される。Widening amount ΔW = Widening amount due to excess thickness reduction + Widening amount due to excess thickness extension + Wideness amount due to web stretching other than excess thickness area Here, if the extension width increases, the web thickness becomes uneven. However, if a constriction occurs in the cross section and the stretching and widening are further increased, the web will be broken. On the contrary, if the width expansion is performed only by rolling the excess thickness portion, the metal surface in the rolling direction is accompanied by the excess thickness portion lowering, so that the web surface whose extension in the rolling direction is restricted is likely to buckle and become wavy. When the piece roll 4 and the disc roll 6 are simultaneously stretched and widened and the excess thickness reduction is performed as in the present invention, the stress acting on the inside of the material by the stretching action and the stress acting on the inside of the material by the excess thickness reduction action are mutually caused. Since it is balanced, the deformation is smooth and the web thickness is uniform. Further, as an attendant effect, there is no problem of abnormal deformation of the material and surface defects associated with the widening processing, and the load and processing energy required for the widening are reduced.
第２図［Ａ］ではウエブの中央部に余肉部ｈを設けた例
を示した。これはディスクロール６の水平面ｇがウエブ
を一層有効に加圧する事に役立ち、拡巾加工は更にスム
ーズに行われる。FIG. 2 [A] shows an example in which the excess thickness portion h is provided in the central portion of the web. This helps the horizontal surface g of the disk roll 6 to more effectively press the web, and the widening process can be performed more smoothly.
第３図は本発明の効果の例を示す図で（イ）はH250×90
×5/9のＨ形鋼を用いてウエブ内巾を拡巾した際のウエ
ブ厚さの偏差を示している。図中Ｂ線は第３図の（ロ）
に示した公知の拡巾装置を用いてウエブをフランジ方向
に引張って拡巾した例であるが、拡巾量が大きくなると
ウエブ厚さの偏差が大きくなりウエブ厚さが不均一とな
る。図中Ａ線はウエブに厚さ方向の加圧を併せ加えたも
ので、ウエブ内巾の拡巾量が大きくなってもウエブ厚さ
の偏差は小さく、厚さは均一に保たれる。FIG. 3 is a diagram showing an example of the effect of the present invention, in which (a) is H250 × 90.
The deviation of the web thickness when the inner width of the web is widened using the H-section steel of × 5/9 is shown. Line B in the figure is (b) in Fig. 3.
This is an example in which the web is stretched and stretched in the direction of the flange by using the well-known widening device shown in FIG. 2. However, when the width of the web is increased, the deviation of the web thickness increases and the web thickness becomes uneven. The line A in the figure is obtained by applying pressure in the thickness direction to the web, and even if the width of the inner width of the web increases, the deviation of the web thickness is small and the thickness is kept uniform.
本発明では駒型ロールやディスクロールの大きさや形
状、又各ロールの配置等に関して特に限定するものでは
ない。第４図はその例示であるが、図示したごとく例え
ば駒型ロールの側面の延長線上のＦ−Ｆにディスクロー
ルの軸芯を配すると、駒型ロール面とディスクロール面
間の摩擦が軽減されて、ロールの摩耗量を少なくするこ
とができる。ディスクロールを（イ）（ロ）（ハ）
（ホ）図のごとく大径ロールにして駆動させると強い拡
巾力を有する独立した装置となるし、又（ニ）図のごと
く小径ロールにすると装置に作用する荷重は小さくでき
る。従って例えばユニバーサルロールとエッジャーロー
ル等の間に配して、非駆動のローラーガイドを兼ねた拡
巾装置としても使用できる。又（ロ）、（ハ）図はウエ
ブ面を広範囲に加圧するのに適当な例である。In the present invention, the size and shape of the piece roll or the disc roll, the arrangement of the rolls, etc. are not particularly limited. As shown in FIG. 4, for example, when the axis of the disc roll is arranged at F-F on the extension line of the side face of the piece roll as shown in the figure, the friction between the piece roll surface and the disc roll surface is reduced. Therefore, the amount of roll wear can be reduced. Disc roll (a) (b) (c)
(E) When a large-diameter roll is driven as shown in the figure, an independent device having a strong spreading force is obtained, and when a small-diameter roll is used as shown in (d), the load acting on the device can be reduced. Therefore, for example, it can be arranged between the universal roll and the edger roll and used as a widening device which also serves as a non-driving roller guide. Also, (b) and (c) are examples suitable for pressing the web surface in a wide range.
ところで、本発明におけるディスクロール６の構造は、
第1,2,4,5図ではいずれも簡単のため一体物として図示
しているが、実用上は第８図の如く、左右の駒型ロール
４と当接するディスクロール6aとウエブ面を加圧するデ
ィスクロール6bとは、相互に分離され、互いに回転自在
なごとく軸受で連接されている。By the way, the structure of the disc roll 6 in the present invention is as follows.
In FIGS. 1, 2, 4, and 5, all of them are shown as an integrated body for the sake of simplicity, but in practice, as shown in FIG. 8, the disk roll 6a that abuts the left and right piece rolls 4 and the web surface are added. The disc roll 6b to be pressed is separated from each other and is connected to each other by a bearing so as to be rotatable.
第８図で（イ）は、ウエブ加工用ディスクロール6bの左
右に一対のスラスト軸受50を配したもので、ウエブ加工
用ディスクロール6bを駆動する形式に好都合である。
（ロ）はラジアル軸受60を介してウエブ加工用ディスク
ロール6bを回転自在としたもので、無駆動方式に適して
いるが、この場合ディスクロール6aを駆動する形式にし
て、材料の噛込から蹴出しまでを円滑化することも可能
である。尚他の方法として第９図の如く、バックアップ
ロール70を配して各部の円滑接触条件を満足させる方法
もあるが、この方法は構造が若干複雑となるが、一応所
期の目的は達成できる。In FIG. 8A, a pair of thrust bearings 50 are arranged on the left and right of the web processing disk roll 6b, which is convenient for driving the web processing disk roll 6b.
(B) is a disc roll 6b for web processing that can be rotated via a radial bearing 60, which is suitable for a non-drive system. In this case, the disc roll 6a is driven to prevent the material from being caught. It is also possible to smooth out the kick. As another method, as shown in FIG. 9, a backup roll 70 may be provided to satisfy the smooth contact condition of each part. This method has a slightly complicated structure, but the intended purpose can be achieved for the time being. .
各ロールを非駆動とする場合は、本発明装置を例えばユ
ニバーサル圧延装置列のエッジャーミルとユニバーサル
との間に設け、本発明装置に材料の先端を押し込む時に
は、本発明装置の前段に位置するミルの押し込み力を利
用し、材料の後端がその前段ミルを蹴出した後は後段ミ
ルの引っ張り力を利用すればよい。When the rolls are not driven, the device of the present invention is provided, for example, between the edger mill and the universal of the row of universal rolling devices, and when the tip of the material is pushed into the device of the present invention, the mill located at the stage before the device of the present invention The pushing force may be used, and after the trailing edge of the material has kicked out the former mill, the tensile force of the latter mill may be used.
本発明で上下のロールチョック１は図示していない固定
用のハウジングまたはフレームに取付られ、上下ロール
の間隔は上下動自在に所定の位置へ高剛性に保持され
る。このような本発明製造装置をリバース圧延を行う圧
延装置列で用いる場合は途中のパスでは上下方向にロー
ルチョック１を開放し、最終のパスで所定の位置にセッ
トして拡巾圧延する。上下動させる構造は油圧シリンダ
ーまたはスクリュー方式など周知の手段を採用すればよ
い。又各ロールスタンドを１パスで連続的に圧延する連
続圧延装置列で用いる場合はハウジングまたはフレーム
を上下一体のフレームで構成してもよい。In the present invention, the upper and lower roll chocks 1 are attached to a fixing housing or frame (not shown), and the interval between the upper and lower rolls is vertically movable and held at a predetermined position with high rigidity. When such a manufacturing apparatus of the present invention is used in a rolling apparatus train for performing reverse rolling, the roll chock 1 is opened in the vertical direction in the middle pass, and set in a predetermined position in the final pass for widening rolling. A well-known means such as a hydraulic cylinder or a screw system may be adopted for the structure for moving up and down. When each roll stand is used in a continuous rolling apparatus train that continuously rolls in one pass, the housing or frame may be configured as a vertically integrated frame.
本発明をＨ形鋼の製造に関して詳説したが、本発明は他
のフランジを有する形鋼のウエブ内巾を拡巾する装置と
しても使用するものである。第５図は本発明をＨ形鋼以
外の形鋼に使用した例を示す図で（イ）は溝形鋼、
（ロ）はＵ型鋼矢板の例である。図中７は水平ロール、
８は溝形鋼、９はＵ型鋼矢板である。Although the present invention has been described in detail with respect to the production of H-section steel, the present invention is also used as a device for expanding the inner width of the web of a section steel having another flange. FIG. 5 is a view showing an example in which the present invention is used for a shaped steel other than the H-shaped steel, (a) is a channel steel,
(B) is an example of a U-shaped steel sheet pile. In the figure, 7 is a horizontal roll,
8 is a channel steel and 9 is a U-shaped steel sheet pile.
又本発明の装置は圧延方向に複数個を配置すると、フラ
ンジ内巾は複数回にわたって拡巾されるために大きな拡
巾量を得ることが出来る。Further, when a plurality of the devices of the present invention are arranged in the rolling direction, the inner width of the flange is expanded a plurality of times, so that a large width expansion amount can be obtained.
［発明の効果］ 以上の説明から明らかなごとく、本発明の装置を使用す
る事により、フランジを有する形鋼のウエブ内巾は、駒
型ロールによりウエブ肉厚が均一で寸法精度もよく拡巾
される。また本発明の装置は小型に製作することがで
き、圧延ラインに配した際の取り替が簡易であるため、
製造する形鋼の寸法が変っても容易に又迅速に対応する
ことができる。[Effects of the Invention] As is clear from the above description, by using the apparatus of the present invention, the web inner width of the shaped steel having the flange is expanded by the piece roll with a uniform web thickness and good dimensional accuracy. To be done. Further, since the device of the present invention can be manufactured in a small size and can be easily replaced when placed on a rolling line,
Even if the dimension of the shaped steel to be manufactured changes, it is possible to easily and quickly cope with it.
第１図は本発明の装置例の図、第２図は本発明の作用を
示す図、第３図は本発明の効果の例を示す図、第４図は
本発明のロールの形状や配置の例を示す図、第５図はＨ
形鋼以外の形鋼に本発明を使用した例を示す図、第６図
は通常のユニバーサル圧延法を示す図、第７図は従来の
技術の例を示す図、第８図はディスクロール６の詳細説
明図、第９図はディスクロール６の他の詳細説明図、で
ある。FIG. 1 is a diagram of an example of the device of the present invention, FIG. 2 is a diagram showing the operation of the present invention, FIG. 3 is a diagram showing an example of the effect of the present invention, and FIG. 4 is a shape and arrangement of rolls of the present invention. Fig. 5 shows an example of H
The figure which shows the example which uses this invention for shaped steels other than shaped steel, FIG. 6 is a figure which shows the normal universal rolling method, FIG. 7 is a figure which shows the example of a prior art, FIG. 8 is disk roll 6 And FIG. 9 is another detailed explanatory view of the disc roll 6.
Claims (1)
ール支持部２に傾斜して軸支され形鋼３のフランジ内面
とウエブに当接してウエブ内巾を拡巾する駒型ロール４
と、該ロールチョック１に設けたディスクロール支持部
５に軸支され水平面が形鋼３のウエブに当接し且つ側面
が左右の駒型ロール４に当接するディスクロール６を有
し、左右の該駒型ロール４と該ディスクロール６が押し
合って、形鋼のウエブ内巾を拡巾する、フランジを有す
る形鋼の製造装置。1. A piece-type roll 4 which is tilted and supported by a piece-type roll support portion 2 provided on a roll chock 1 shown in FIG. 1 and contacts the flange inner surface of a shaped steel 3 with the web to widen the inner width of the web.
And a disk roll 6 pivotally supported by a disk roll supporting portion 5 provided on the roll chock 1 and having a horizontal surface abutting the web of the shaped steel 3 and side surfaces abutting the left and right piece-shaped rolls 4. An apparatus for manufacturing a shaped steel having a flange, in which the die roll 4 and the disc roll 6 are pressed against each other to widen the inner width of the web of the shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28682886A JPH074602B2 (en) | 1986-12-03 | 1986-12-03 | Manufacturing equipment for shaped steel with flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28682886A JPH074602B2 (en) | 1986-12-03 | 1986-12-03 | Manufacturing equipment for shaped steel with flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140708A JPS63140708A (en) | 1988-06-13 |
| JPH074602B2 true JPH074602B2 (en) | 1995-01-25 |
Family
ID=17709563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28682886A Expired - Lifetime JPH074602B2 (en) | 1986-12-03 | 1986-12-03 | Manufacturing equipment for shaped steel with flange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074602B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2584095C2 (en) | 2011-05-13 | 2016-05-20 | Маннштет Гмбх | Method and device for production of metal sections with accurate size of cavity |
-
1986
- 1986-12-03 JP JP28682886A patent/JPH074602B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140708A (en) | 1988-06-13 |
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