JPH08267142A - Device for correcting tacking strain of welding wide-flange shape steel - Google Patents

Device for correcting tacking strain of welding wide-flange shape steel

Info

Publication number
JPH08267142A
JPH08267142A JP9808495A JP9808495A JPH08267142A JP H08267142 A JPH08267142 A JP H08267142A JP 9808495 A JP9808495 A JP 9808495A JP 9808495 A JP9808495 A JP 9808495A JP H08267142 A JPH08267142 A JP H08267142A
Authority
JP
Japan
Prior art keywords
web
section steel
welding
strain
welded
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
Application number
JP9808495A
Other languages
Japanese (ja)
Inventor
Hideki Hojo
英樹 北条
Yutaka Ito
裕 伊藤
Hiroshi Karube
洋 軽部
Shojiro Yokomizo
正二郎 横溝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topy Industries Ltd
Original Assignee
Topy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Topy Industries Ltd filed Critical Topy Industries Ltd
Priority to JP9808495A priority Critical patent/JPH08267142A/en
Publication of JPH08267142A publication Critical patent/JPH08267142A/en
Pending legal-status Critical Current

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  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To provide a welding wide flange shape steel tacking strain correcting device which can correct the strain effectively. CONSTITUTION: For the production of wide flange shape steel 1 by welding a lower flange 2, a web 3 and an upper flange 4, this device corrects the strain after tack-welding. The device is provided with a transfer roller 11 to transfer the wide flange shape steel 1 in the longitudinal direction, a pair of web holding rollers 12 to hold the web 3 in the vertical state by directing the rotary axial lines 12a up and down, installing them freely rotting and pushing respective circumferential faces on both side faces of the wide flange shape steel 1 being transferred on the transfer roller 11, and a pressing roller 18 which is arranged parallel to the transfer roller 11 on the upper side of the transfer roller 11 and which presses the upper flange 4 of the wide flange shape steel 1 after tack-welding downward by being moved parallel downward with an up and down driving device 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、溶接によりH形鋼を製
造する場合に、仮付け溶接した状態のH形鋼の歪を修正
する装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for correcting the distortion of tack welded H-section steel when producing H-section steel by welding.

【0002】[0002]

【従来の技術】サイズの大きなH形鋼や標準サイズでな
いH形鋼の場合、圧延によらずに、下フランジと、ウェ
ブと、上フランジとを相互に溶接してH形鋼を製造して
いる。図2は、そのようにして製造したH形鋼の正面図
である。このH形鋼1は、下フランジ2と、その幅方向
中央に立設されたウェブ3と、ウェブ3の上端に水平に
配された上フランジ4とからなり、下フランジ2の幅方
向中央部とウェブ3の下端が溶接され、上フランジ4の
幅方向中央部とウェブ3の上端が溶接され、それによ
り、上下両フランジ2、4が平行で、それらとウェブ3
が互いに垂直な関係に保たれて、一体化されている。5
は溶接箇所を示す。なお、上下フランジ2、4は、溶接
による変形分を相殺するように、中央で折れ曲げられて
いる。図では誇張して描いてある。
2. Description of the Related Art In the case of large H-section steel or non-standard H-section steel, the H-section steel is manufactured by welding the lower flange, the web and the upper flange to each other without rolling. There is. FIG. 2 is a front view of the H-section steel thus manufactured. This H-section steel 1 is composed of a lower flange 2, a web 3 standing upright in the widthwise center thereof, and an upper flange 4 horizontally arranged at the upper end of the web 3, and the widthwise central portion of the lower flange 2 is formed. And the lower end of the web 3 are welded to each other, and the widthwise central portion of the upper flange 4 and the upper end of the web 3 are welded to each other so that the upper and lower flanges 2 and 4 are parallel to each other.
Are kept in a vertical relationship with each other and are integrated. 5
Indicates a welded portion. The upper and lower flanges 2 and 4 are bent at the center so as to cancel the deformation caused by welding. The illustration is exaggerated.

【0003】ところで、このような溶接H形鋼を製造す
る場合、本溶接する前の仮組みの段階で、各部材つまり
下フランジ2と、ウェブ3と、上フランジ4を正確に位
置決めして仮付け溶接するが、仮付け溶接後に、熱変形
等により歪が発生することがある。図3は、歪が発生し
て、左側のフランジ間寸法Aと右側のフランジ間寸法
A’との間に差が生じた場合を示す。
By the way, when manufacturing such a welded H-section steel, each member, that is, the lower flange 2, the web 3, and the upper flange 4 are accurately positioned and provisionally prepared at the stage of temporary assembly before the main welding. Although tack welding is performed, distortion may occur due to thermal deformation or the like after tack welding. FIG. 3 shows a case where a strain occurs and a difference occurs between the left flange dimension A and the right flange dimension A ′.

【0004】このように仮組時に歪が発生した場合、検
査して修正しなくてはならないが、従来では、このよう
な仮付け溶接時の歪の修正は、図4に示すように、直角
治具6とハンマー7を用いて手作業で行っていた。
When distortion occurs during temporary assembly as described above, it must be inspected and corrected, but conventionally, such correction of distortion during temporary welding is performed at a right angle as shown in FIG. It was done manually using the jig 6 and the hammer 7.

【0005】[0005]

【発明が解決しようとする課題】従来は手作業であるた
め、時間がかかる上、精度良く修正できないという問題
があった。
Conventionally, there has been a problem that since it is manual work, it takes time and cannot be corrected accurately.

【0006】本発明は、上記事情を考慮し、効率良く歪
の修正ができる溶接H形鋼の仮付け歪修正装置を提供す
ることを目的とする。
In view of the above circumstances, it is an object of the present invention to provide a tacking strain correcting device for welded H-section steel capable of correcting strain efficiently.

【0007】[0007]

【課題を解決するための手段】請求項1の発明は、下フ
ランジとウェブと上フランジとを溶接してH形鋼を製造
するにあたり、仮付け溶接後の歪を修正する装置であっ
て、(イ)仮付け溶接されたH形鋼を載せる水平な載置
部と、(ロ)回転軸線を上下に向けて回転自在に設けら
れ、載置部上のH形鋼のウェブの両側面にそれぞれ周面
を当てることで、ウェブを垂直な状態に保持する少なく
とも一対のウェブ保持ローラと、(ハ)回転軸線が載置
部上のH形鋼の幅方向に水平に延びて回転自在に設けら
れ、H形鋼の上フランジの上面に当たる押圧ローラと、
(ニ)前記押圧ローラを下方に付勢する付勢手段と、を
備えたことを特徴とする溶接H形鋼の仮付け歪修正装
置。請求項2の発明は、請求項1に記載の溶接H形鋼の
仮付け歪修正装置において、前記載置部が、H形鋼をそ
の長手方向に搬送可能な多数の搬送ローラにより構成さ
れていることを特徴とする。請求項3の発明は、請求項
1または2に記載の溶接H形鋼の仮付け歪修正装置にお
いて、前記押圧ローラが、その回転軸線に沿って2分割
されていることを特徴とする。
The invention according to claim 1 is an apparatus for correcting a strain after tack welding in manufacturing an H-section steel by welding a lower flange, a web and an upper flange, (A) A horizontal placement part on which the temporary welded H-section steel is placed, and (b) a rotation axis that is rotatably provided vertically, and is provided on both sides of the H-section steel web on the placement part. At least a pair of web holding rollers for holding the web in a vertical state by applying circumferential surfaces to each other, and (c) a rotation axis extending horizontally in the width direction of the H-section steel on the mounting portion and rotatably provided. And a pressing roller that hits the upper surface of the upper flange of the H-section steel,
(D) An urging means for urging the pressure roller downward, and a temporary welding distortion correcting device for welded H-section steel. According to a second aspect of the present invention, in the temporary welding distortion correction device for the welded H-section steel according to the first aspect, the placing section is configured by a large number of conveying rollers capable of conveying the H-section steel in the longitudinal direction thereof. It is characterized by being According to a third aspect of the present invention, in the temporary welding distortion correction device for welded H-section steel according to the first or second aspect, the pressing roller is divided into two along the rotation axis thereof.

【0008】[0008]

【作用】請求項1に発明では、歪を修正する場合、仮付
け溶接されたH形鋼を載置部に乗せ、ウェブ保持ローラ
でウェブを垂直に保持する。次いで、押圧ローラを下降
させて、上フランジを下向きに押圧し、一定の圧力を加
える。そして、その状態で押圧ローラに対してH形鋼を
その長手方向に相対移動させると、仮付け溶接されたH
形鋼が、載置部と押圧ローラ間に圧力を持って挟まれ
て、上下フランジとウェブの溶接歪が修正される。すな
わち、上下フランジとウェブとが直角になり、上下フラ
ンジの幅方向の両端間寸法間が等しくなるように矯正さ
れる。請求項2の発明では、載置部が搬送ローラにより
構成されるので、仮付け溶接されたH形鋼を長手方向に
搬送させることにより、押圧ローラに対して容易に相対
移動させることができる。請求項3の発明では、押圧ロ
ーラを2分割するので、各分割部分が互いに独立して回
転され、H形鋼の上フランジが蛇行していても、この上
フランジを押圧しながら円滑に回転することができ、上
フランジとの間に大きな摩擦が生じるのを防ぐことがで
きる。
According to the first aspect of the invention, when the strain is corrected, the temporarily welded H-section steel is placed on the mounting portion and the web is held vertically by the web holding roller. Next, the pressing roller is lowered to press the upper flange downward, and a constant pressure is applied. Then, in that state, when the H-section steel is moved relative to the pressing roller in the longitudinal direction thereof, the temporarily welded H
The shaped steel is sandwiched between the mounting portion and the pressing roller with pressure to correct the welding distortion between the upper and lower flanges and the web. That is, the upper and lower flanges are orthogonal to the web, and the upper and lower flanges are straightened so that the distance between both ends in the width direction is equal. According to the second aspect of the present invention, since the mounting portion is configured by the transport roller, the tack-welded H-section steel is transported in the longitudinal direction, so that it can be easily moved relative to the pressing roller. In the invention of claim 3, since the pressing roller is divided into two parts, the respective divided parts are rotated independently of each other, and even if the upper flange of the H-shaped steel meanders, it smoothly rotates while pressing the upper flange. Therefore, it is possible to prevent a large friction from being generated between the upper flange and the upper flange.

【0009】[0009]

【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図1は実施例の歪修正装置10の正面図であ
る。この歪修正装置10は、紙面と直交する方向に間隔
をおいて並んで配置された多数の搬送ローラ11と、こ
の搬送ローラ11の上方に配置された一対のウェブ保持
ローラ12と、このウェブ保持ローラ12の上方に配置
された押圧ローラ18とを備えている。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a distortion correction device 10 of the embodiment. The distortion correcting device 10 includes a large number of conveying rollers 11 arranged side by side in a direction orthogonal to the plane of the drawing, a pair of web holding rollers 12 arranged above the conveying rollers 11, and a web holding roller. The pressure roller 18 is disposed above the roller 12.

【0010】搬送ローラ11は、仮付け溶接されたH形
鋼1の幅方向に水平に延びる回転軸線11aを中心に回
転自在に設けられ、H形鋼1を長手方向に搬送するため
の搬送手段(載置部)を構成する。
The conveying roller 11 is rotatably provided around a rotation axis 11a extending horizontally in the width direction of the temporarily welded H-section steel 1 and conveys the H-section steel 1 in the longitudinal direction. (Placing section).

【0011】ウェブ保持ローラ12は、回転軸線12a
を上下に向けて回転自在に設けられ、搬送ローラ11上
を移送されるH形鋼1のウェブ3の両側面にそれぞれ周
面を当てることで、ウェブ3を垂直な状態で、かつH形
鋼1の幅方向の基準線(中心線)Kを基準にして挟持す
るもので、基準線Kに対して左右対称に幅調節可能に設
けられている。その駆動機構においては、図示しない
が、両ウェブ保持ローラ12を同期して動かせるように
なっている。この駆動機構は、例えば、ウェブ保持ロー
ラ12をそれぞれ保持するとともにH形鋼1の幅方向に
移動可能なサポートと、これらサポートにそれぞれ固定
されるとともに互いに平行をなす一対のラックと、これ
らラック間に配置されてかみ合うピニオンとを備えてい
る。一方のサポートには、空圧シリンダ(流体圧シリン
ダ)が連結されており、この空圧シリンダの作動によ
り、一対のサポートは基準線K方向に付勢されるように
なっている。なお、上記ウェブ保持ローラ12は、位置
調節機構により、ウエブ高さに応じて上下位置調節でき
るようにして、上記サポートに保持されている。
The web holding roller 12 has a rotation axis 12a.
Are vertically rotatably provided, and the peripheral surfaces of the webs 3 of the H-section steel 1 transported on the conveying roller 11 are brought into contact with the peripheral surfaces of the webs 3, respectively, so that the webs 3 are in a vertical state and It is sandwiched with a reference line (center line) K in the width direction of 1 as a reference, and the width is symmetrically adjustable with respect to the reference line K. Although not shown in the drawing, the drive mechanism can move both web holding rollers 12 in synchronization. This drive mechanism is, for example, a support that holds the web holding rollers 12 and that is movable in the width direction of the H-section steel 1, a pair of racks that are fixed to these supports and that are parallel to each other, and a space between these racks. It is equipped with a pinion that is placed in and meshes with. A pneumatic cylinder (fluid pressure cylinder) is connected to one of the supports, and the pair of supports are biased in the reference line K direction by the operation of the pneumatic cylinder. The web holding roller 12 is held on the support by a position adjusting mechanism so that the web holding roller 12 can be vertically moved according to the height of the web.

【0012】上記押圧ローラ18は、搬送ローラ11と
平行をなして回転自在に配置されている。この押圧ロー
ラ18は、フレーム30に設けられた昇降駆動装置20
(付勢手段)により昇降させられるようになっている。
この昇降駆動装置20は、フレーム30の上面に固定さ
れた一対のガイド21と、このガイド21に案内され
て、フレーム30を上下移動可能に貫通するガイドポス
ト22と、ガイドポスト22の下端に固定され、上記押
圧ローラ18を貫通するシャフト18x(回転軸線)を
水平に保持するサポート23とを備えている。これによ
り、押圧ローラ18は水平状態を維持したまま上下移動
可能である。さらに昇降駆動装置20は、フレーム30
に固定され、そのロッド先端がサポート23の中央に連
結された空圧シリンダ25(流体圧シリンダ)を備えて
いる。なお、押圧ロッド18は、2分割されている。各
分割部分18a,18bは、上記回転シャフト18xに
支持されて互いに独立して回転可能となっている。
The pressing roller 18 is rotatably arranged in parallel with the conveying roller 11. The pressing roller 18 is a lifting drive device 20 provided on the frame 30.
It can be moved up and down by (biasing means).
The lift drive device 20 is fixed to a pair of guides 21 fixed to an upper surface of a frame 30, a guide post 22 that is guided by the guide 21 and penetrates the frame 30 in a vertically movable manner, and fixed to a lower end of the guide post 22. And a support 23 that horizontally holds a shaft 18x (rotation axis) that penetrates the pressing roller 18. As a result, the pressing roller 18 can move up and down while maintaining the horizontal state. Further, the lifting drive device 20 includes a frame 30.
Is equipped with a pneumatic cylinder 25 (fluid pressure cylinder) whose rod tip is connected to the center of the support 23. The pressing rod 18 is divided into two. The divided portions 18a and 18b are supported by the rotary shaft 18x and can rotate independently of each other.

【0013】次に作用を説明する。仮付け溶接したH形
鋼1の歪を修正する場合は、同H形鋼1を搬送ローラ1
1上に乗せ、ウェブ保持ローラ12を内方に移動して、
その周面でウェブ3の両側面を挟持し、ウェブ3を垂直
に保持する。次いで、空圧シリンダ25を作動させて、
押圧ローラ18を下降させて、上フランジ4を下向きに
押圧し、一定の圧力を加える。この場合、ウェブ保持ロ
ーラ12および押圧ローラ18の圧力は、各空圧シリン
ダの圧力を圧力スイッチで監視することにより、一定に
制御する。
Next, the operation will be described. When correcting the distortion of the tack welded H-section steel 1, the H-section steel 1 is fixed to the transport roller 1
1 and move the web holding roller 12 inward,
Both side surfaces of the web 3 are sandwiched by the peripheral surface thereof, and the web 3 is held vertically. Then, the pneumatic cylinder 25 is operated,
The pressing roller 18 is lowered to press the upper flange 4 downward, and a constant pressure is applied. In this case, the pressures of the web holding roller 12 and the pressing roller 18 are controlled to be constant by monitoring the pressure of each pneumatic cylinder with a pressure switch.

【0014】そして、一定の押圧力を付与して、押圧ロ
ーラ18と搬送ローラ11で上下フランジ2、4を挟み
込んだ状態で、搬送ローラ11を駆動して、H形鋼1を
搬送する。そうすると、圧延と同様の原理で、搬送に従
い、仮組みしたH形鋼1の歪が修正される。すなわち、
ウェブ3が垂直に維持されて、下フランジ2の幅方向両
端が搬送ローラ11に当たり、上フランジ4の幅方向両
端が押圧ローラ18に当たるため、上下フランジ2,4
に対してウェブ3が直角に矯正されるとともに、上下フ
ランジの幅方向両端間の寸法を等しくすることができ
る。この際、押圧ローラ18は2分割構造になっている
ので、H形鋼1が蛇行形状をしていてもよく追従し、無
理な摩擦が発生しない。
Then, with a constant pressing force applied, the upper and lower flanges 2 and 4 are sandwiched between the pressing roller 18 and the conveying roller 11, and the conveying roller 11 is driven to convey the H-section steel 1. Then, according to the same principle as rolling, the strain of the temporarily assembled H-section steel 1 is corrected according to the conveyance. That is,
Since the web 3 is maintained vertically, both widthwise ends of the lower flange 2 hit the conveying rollers 11, and both widthwise ends of the upper flange 4 hit the pressing rollers 18, so that the upper and lower flanges 2, 4
On the other hand, the web 3 is straightened at a right angle, and the widthwise ends of the upper and lower flanges can be equalized. At this time, since the pressing roller 18 has a two-divided structure, the H-shaped steel 1 can follow the meandering shape well, and unnecessary friction does not occur.

【0015】[0015]

【発明の効果】以上説明したように、請求項1の発明に
よれば、ウェブ保持ローラでウェブを垂直に保持し押圧
ローラで押圧力を加えながら、H形鋼を長手方向に相対
移動させることにより、仮付け溶接したH形鋼の歪を簡
単かつ高精度に矯正することができる。請求項2によれ
ば、搬送ローラにより、仮付け溶接されたH形鋼を押圧
ローラに対して容易に相対移動させることができる。請
求項3によれば、押圧ローラを2分割するので、H形鋼
の上フランジが蛇行していても、押圧ローラと上フラン
ジとの間に大きな摩擦が生じるのを防ぐことができる。
As described above, according to the first aspect of the present invention, the H-section steel is relatively moved in the longitudinal direction while the web holding roller holds the web vertically and the pressing roller applies the pressing force. Thus, the distortion of the tack welded H-section steel can be corrected easily and with high accuracy. According to the second aspect, the H-shaped steel temporarily tack-welded can be relatively moved by the conveying roller with respect to the pressing roller. According to the third aspect, since the pressing roller is divided into two, even if the upper flange of the H-shaped steel meanders, it is possible to prevent a large friction from occurring between the pressing roller and the upper flange.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の正面図である。FIG. 1 is a front view of an embodiment of the present invention.

【図2】仮溶接された歪みのあるH形鋼の形状を誇張し
て示す正面図である。
FIG. 2 is a front view showing exaggeratedly the shape of a distorted H-section steel temporarily welded.

【図3】仮付け溶接した状態で歪が生じていないH形鋼
の形状を誇張して示す正面図である。
FIG. 3 is an exaggerated front view showing the shape of H-section steel in which distortion has not occurred in the state of tack welding.

【図4】従来の歪修正方法の説明図である。FIG. 4 is an explanatory diagram of a conventional distortion correction method.

【符号の説明】[Explanation of symbols]

1 H形鋼 2 下フランジ 3 ウェブ 4 上フランジ 10 歪修正装置 11 搬送ローラ(載置部) 11a 回転軸線 12 ウェブ保持ローラ 12a 回転軸線 18 押圧ローラ 18x シャフト(回転軸線) 20 昇降駆動装置(付勢手段) 1 H-Shaped Steel 2 Lower Flange 3 Web 4 Upper Flange 10 Strain Correction Device 11 Conveyor Roller (Mounting Part) 11a Rotation Axis 12 Web Holding Roller 12a Rotation Axis 18 Pressing Roller 18x Shaft (Rotation Axis) 20 Lifting Drive (Biasing) means)

───────────────────────────────────────────────────── フロントページの続き (72)発明者 横溝 正二郎 東京都千代田区四番町5番地9 トピー工 業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shojiro Yokomizo, 5-5, Yonbancho, Chiyoda-ku, Tokyo Topy Industries Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 下フランジとウェブと上フランジとを溶
接してH形鋼を製造するにあたり、仮付け溶接後の歪を
修正する装置であって、 (イ)仮付け溶接されたH形鋼を載せる水平な載置部
と、 (ロ)回転軸線を上下に向けて回転自在に設けられ、載
置部上のH形鋼のウェブの両側面にそれぞれ周面を当て
ることで、ウェブを垂直な状態に保持する少なくとも一
対のウェブ保持ローラと、 (ハ)回転軸線が載置部上のH形鋼の幅方向に水平に延
びて回転自在に設けられ、H形鋼の上フランジの上面に
当たる押圧ローラと、 (ニ)前記押圧ローラを下方に付勢する付勢手段と、 を備えたことを特徴とする溶接H形鋼の仮付け歪修正装
置。
1. A device for correcting strain after tack welding when manufacturing a H-section steel by welding a lower flange, a web and an upper flange, comprising: (a) H-section steel tack-welded. A horizontal placement part on which the web is placed, and (b) a rotation axis line that is vertically rotatably provided, and the web is made vertical by applying circumferential surfaces to both sides of the H-section steel web on the placement part. At least a pair of web holding rollers that hold the H-shaped steel and (c) a rotation axis extending horizontally in the width direction of the H-shaped steel on the mounting portion and rotatably provided, and hitting the upper surface of the upper flange of the H-shaped steel. A temporary welding distortion correcting device for welded H-section steel, comprising: a pressing roller; and (d) an urging means for urging the pressing roller downward.
【請求項2】 前記載置部が、H形鋼をその長手方向に
搬送可能な多数の搬送ローラにより構成されていること
を特徴とする請求項1に記載の溶接H形鋼の仮付け歪修
正装置。
2. The tacking strain of the welded H-section steel according to claim 1, wherein the mounting portion is composed of a large number of conveyance rollers capable of conveying the H-section steel in the longitudinal direction thereof. Correction device.
【請求項3】 前記押圧ローラが、その回転軸線に沿っ
て2分割されていることを特徴とする請求項1または2
に記載の溶接H形鋼の仮付け歪修正装置。
3. The pressure roller is divided into two along the axis of rotation thereof.
The temporary strain correction device for the welded H-section steel according to 1.
JP9808495A 1995-03-30 1995-03-30 Device for correcting tacking strain of welding wide-flange shape steel Pending JPH08267142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9808495A JPH08267142A (en) 1995-03-30 1995-03-30 Device for correcting tacking strain of welding wide-flange shape steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9808495A JPH08267142A (en) 1995-03-30 1995-03-30 Device for correcting tacking strain of welding wide-flange shape steel

Publications (1)

Publication Number Publication Date
JPH08267142A true JPH08267142A (en) 1996-10-15

Family

ID=14210487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9808495A Pending JPH08267142A (en) 1995-03-30 1995-03-30 Device for correcting tacking strain of welding wide-flange shape steel

Country Status (1)

Country Link
JP (1) JPH08267142A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394924A (en) * 2013-08-13 2013-11-20 南通华恒机械制造有限公司 H-shaped steel assembling, welding and straightening all-in-one machine with welding deformation straightening device
CN104438477A (en) * 2014-11-20 2015-03-25 宁波华业钢结构有限公司 Flange face straightening tool
CN107530750A (en) * 2015-03-31 2018-01-02 日新制钢株式会社 Weld the manufacture device of shaped steel and weld the manufacture method of shaped steel
CN117226370A (en) * 2023-11-16 2023-12-15 中铁建工集团有限公司 Steel structure overpass truss structure, welding device and welding installation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394924A (en) * 2013-08-13 2013-11-20 南通华恒机械制造有限公司 H-shaped steel assembling, welding and straightening all-in-one machine with welding deformation straightening device
CN104438477A (en) * 2014-11-20 2015-03-25 宁波华业钢结构有限公司 Flange face straightening tool
CN104438477B (en) * 2014-11-20 2016-06-01 宁波华业钢结构有限公司 Flange face correction tool
CN107530750A (en) * 2015-03-31 2018-01-02 日新制钢株式会社 Weld the manufacture device of shaped steel and weld the manufacture method of shaped steel
CN117226370A (en) * 2023-11-16 2023-12-15 中铁建工集团有限公司 Steel structure overpass truss structure, welding device and welding installation method thereof
CN117226370B (en) * 2023-11-16 2024-03-19 中铁建工集团有限公司 Steel structure overpass truss structure, welding device and welding installation method thereof

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