JP3225450B2 - Steel frame welding method - Google Patents
Steel frame welding methodInfo
- Publication number
- JP3225450B2 JP3225450B2 JP18961493A JP18961493A JP3225450B2 JP 3225450 B2 JP3225450 B2 JP 3225450B2 JP 18961493 A JP18961493 A JP 18961493A JP 18961493 A JP18961493 A JP 18961493A JP 3225450 B2 JP3225450 B2 JP 3225450B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- steel frame
- steel
- welding method
- present
- 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
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding Control (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築分野において、電
気溶接時の鉄骨への残留磁気量を低減させるための鉄骨
の溶接方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of welding a steel frame to reduce the amount of residual magnetism in the steel frame during electric welding in the field of construction.
【０００２】[0002]
【従来の技術】従来、鉄骨柱に鉄骨梁を電気溶接にて溶
接し固着する場合、スタッド溶接機の溶接ガンによりス
タッドを溶接箇所に配置するとともに、母材（鉄骨）の
一部に接地電極を取り付け、溶接電源を前記スタッドと
接地電極に接続してアークを発生させ溶接を行ってい
る。2. Description of the Related Art Conventionally, when a steel beam is welded and fixed to a steel column by electric welding, a stud is arranged at a welding position by a welding gun of a stud welding machine, and a ground electrode is partially attached to a base material (steel frame). And welding is performed by connecting a welding power source to the stud and the ground electrode to generate an arc.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の溶接方法は、鉄骨に溶接電流が流れる度に磁化され
るため、鉄骨の残留磁気量が増大するという問題を有し
ている。その結果、ＯＡ機器が磁気環境の影響を受けて
誤動作したり、コンピュータのＣＲＴディスプレイに色
ずれが生じたり、その中の情報の化け等が発生し、シス
テムの信頼性が低下し業務に重大な影響を与える。特
に、ＣＲＴディスプレイの高精細化、多色化が進展する
につれて大きな問題となることが予想される。この問題
を解決するためには、帯磁部を破壊して修復することも
考えられるが、建物構造体の強度上の問題があり、従
来、この問題を解決する有効な対策はとられていない。However, the conventional welding method described above has a problem that the magnetism is increased each time a welding current flows through the steel frame, so that the residual magnetism of the steel frame increases. As a result, the OA equipment malfunctions under the influence of the magnetic environment, a color shift occurs in the CRT display of the computer, information in the CRT is garbled, etc., thereby lowering the reliability of the system and seriously affecting operations. Affect. In particular, it is expected that this will become a major problem as CRT displays become more sophisticated and multicolored. To solve this problem, it is conceivable to repair the magnet by destroying the magnetized portion. However, there is a problem in the strength of the building structure, and no effective measures have been taken to solve this problem.
【０００４】本発明は、上記問題を解決するものであっ
て、電気溶接する際に、鉄骨に流れる溶接電流により生
じる磁界の方向を交互に逆向きに変化させることによ
り、鉄骨への残留磁気量を低減させ、磁気障害を低減さ
せることができる鉄骨の溶接方法を提供することを目的
とする。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problem. At the time of electric welding, the direction of a magnetic field generated by a welding current flowing through a steel frame is alternately changed in the opposite direction, so that the amount of residual magnetism in the steel frame is changed. It is an object of the present invention to provide a method for welding a steel frame that can reduce magnetic interference and reduce magnetic interference.
【０００５】[0005]
【課題を解決するための手段】そのために本発明の鉄骨
の溶接方法は、１対の鉄骨柱１間に鉄骨梁２を溶接する
に際し、溶接位置には溶接ガン５を配置し、１対の鉄骨
柱１にはそれぞれ接地電極６、７を設け、溶接する度に
溶接電源１０の接地電極６、７を切り換えることを特徴
とする。なお、上記構成に付加した番号は、本発明の理
解を容易にするために図面と対比させるためのもので、
これにより本発明の構成が何ら限定されるものではな
い。For this purpose, the method of welding a steel frame according to the present invention includes the steps of: welding a steel beam 2 between a pair of steel columns 1; The steel column 1 is provided with ground electrodes 6 and 7, respectively, and switches the ground electrodes 6 and 7 of the welding power source 10 every time welding is performed. The numbers added to the above configuration are for comparison with the drawings to facilitate understanding of the present invention,
This does not limit the configuration of the present invention at all.
【０００６】[0006]
【作用】本発明においては、例えば図１に示すように、
溶接電源１０は接地電極６、７に交互に切り換えられる
ため、鉄骨に流れる溶接電流により生じる磁界の方向が
交互に逆向きとなり、磁化された量が消磁されることに
なる。In the present invention, for example, as shown in FIG.
Since the welding power source 10 is alternately switched to the ground electrodes 6 and 7, the direction of the magnetic field generated by the welding current flowing through the steel frame is alternately reversed, and the magnetized amount is demagnetized.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。図１は、本発明の鉄骨の溶接方法の１実施例を
示し、図１（Ａ）は溶接装置の配置を示す斜視図、図１
（Ｂ）は溶接制御装置の電気回路図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a steel frame welding method according to the present invention, and FIG. 1 (A) is a perspective view showing an arrangement of a welding device.
(B) is an electric circuit diagram of the welding control device.
【０００８】図１（Ａ）において、鉄骨柱１には梁固定
部１ａが形成され、この梁固定部１ａ間にＨ型鋼からな
る鉄骨梁２がボルト３にて固定され、鉄骨柱１と鉄骨梁
２の連結部が溶接される。溶接箇所には、溶接ガン５が
配置されスタッドを配置し、一方、鉄骨梁２にを固定す
る１対の鉄骨柱１、１にはそれぞれ接地電極６、７が設
けられ、溶接ガン５と接地電極６、７は、溶接制御装置
８に接続されている。In FIG. 1A, a beam fixing portion 1a is formed in a steel column 1, and a steel beam 2 made of H-shaped steel is fixed between the beam fixing portions 1a by bolts 3, and the steel column 1 and the steel frame are fixed. The joint of the beam 2 is welded. At the welding location, a welding gun 5 is arranged and a stud is arranged. On the other hand, a pair of steel columns 1, 1 for fixing the steel beam 2 are provided with grounding electrodes 6, 7, respectively. The electrodes 6, 7 are connected to a welding control device 8.
【０００９】溶接制御装置８は、図１（Ｂ）に示すよう
に、溶接ガン５は溶接スイッチ９を介して溶接電源１０
に接続され、さらに切換スイッチ１１を介して、接地電
極６、７に接続されている。リレー１２は、励磁される
と切換スイッチ１１の接点を交互に切り換え可能なタイ
プのリレーであり、前記溶接スイッチ９を介して制御用
電源１３に接続されている。As shown in FIG. 1B, the welding control device 8 controls the welding gun 5 via a welding switch 9 and a welding power source 10.
, And further connected to ground electrodes 6 and 7 via a changeover switch 11. The relay 12 is a type of relay capable of alternately switching the contacts of the changeover switch 11 when excited, and is connected to the control power supply 13 via the welding switch 9.
【００１０】従って、溶接スイッチ９をオンする度に切
換スイッチ１１が切り換えられ、溶接電源１０は接地電
極６、７に交互に切り換えられるため、鉄骨に流れる溶
接電流により生じる磁界の方向が交互に逆向きとなり、
磁化された量が消磁されるため、鉄骨への残留磁気量を
低減させることができる。Therefore, each time the welding switch 9 is turned on, the changeover switch 11 is switched, and the welding power source 10 is alternately switched to the ground electrodes 6, 7, so that the direction of the magnetic field generated by the welding current flowing through the steel frame is alternately reversed. Orientation
Since the magnetized amount is demagnetized, the amount of residual magnetism in the steel frame can be reduced.
【００１１】[0011]
【発明の効果】以上の説明から明らかなように本発明に
よれば、電気溶接する際に、鉄骨に流れる溶接電流によ
り生じる磁界の方向を交互に逆向きに変化させることに
より、鉄骨への残留磁気量を低減させ、磁気障害を低減
させることができる。As is apparent from the above description, according to the present invention, during electric welding, the direction of the magnetic field generated by the welding current flowing through the steel frame is changed alternately in the opposite direction, so that the residual magnetic field on the steel frame is obtained. The amount of magnetism can be reduced, and magnetic disturbance can be reduced.
【図１】本発明の鉄骨の溶接方法の１実施例を示し、図
１（Ａ）は溶接装置の配置を示す斜視図、図１（Ｂ）は
溶接制御装置の電気回路図である。FIG. 1 shows an embodiment of a steel frame welding method according to the present invention, FIG. 1 (A) is a perspective view showing an arrangement of a welding device, and FIG. 1 (B) is an electric circuit diagram of a welding control device.
１…鉄骨柱、１ａ…梁固定部、２…鉄骨梁、３…ボル
ト、５…溶接ガン ６、７…接地電極、８…溶接制御装置、９…溶接スイッ
チ、１０…溶接電源 １１…切換スイッチ、１２…リレー、１３…制御用電源DESCRIPTION OF SYMBOLS 1 ... Steel column, 1a ... Beam fixing part, 2 ... Steel beam, 3 ... Bolt, 5 ... Welding gun 6, 7 ... Ground electrode, 8 ... Welding control device, 9 ... Welding switch, 10 ... Welding power supply 11 ... Changeover switch , 12 ... relay, 13 ... control power supply
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 9/00 B23K 9/08 B23K 9/32 B23K 101:28 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B23K 9/00 B23K 9/08 B23K 9/32 B23K 101: 28
Claims (1)
し、溶接位置には溶接ガンを配置し、１対の鉄骨柱には
それぞれ接地電極を設け、溶接する度に溶接電源の接地
電極を切り換えることを特徴とする鉄骨の溶接方法。When welding a steel beam between a pair of steel columns, a welding gun is arranged at a welding position, a ground electrode is provided on each of the pair of steel columns, and a grounding of a welding power source is performed every time welding is performed. A method for welding steel frames, characterized by switching electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18961493A JP3225450B2 (en) | 1993-07-30 | 1993-07-30 | Steel frame welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18961493A JP3225450B2 (en) | 1993-07-30 | 1993-07-30 | Steel frame welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0740040A JPH0740040A (en) | 1995-02-10 |
| JP3225450B2 true JP3225450B2 (en) | 2001-11-05 |
Family
ID=16244255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18961493A Expired - Fee Related JP3225450B2 (en) | 1993-07-30 | 1993-07-30 | Steel frame welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3225450B2 (en) |
-
1993
- 1993-07-30 JP JP18961493A patent/JP3225450B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740040A (en) | 1995-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |