JP2832912B2 - Bonding method of metal strip - Google Patents
Bonding method of metal stripInfo
- Publication number
- JP2832912B2 JP2832912B2 JP1020534A JP2053489A JP2832912B2 JP 2832912 B2 JP2832912 B2 JP 2832912B2 JP 1020534 A JP1020534 A JP 1020534A JP 2053489 A JP2053489 A JP 2053489A JP 2832912 B2 JP2832912 B2 JP 2832912B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- strip
- shaped metal
- arc
- metal plate
- 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.)
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- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は帯状金属板の接合方法に係り、特に、可撓性
のAl合金の帯状金属板の端部同士を接合する為の接合方
法に関する。Description: FIELD OF THE INVENTION The present invention relates to a method for joining strip metal sheets, and more particularly, to a joining method for joining the ends of flexible Al alloy strip metal sheets. .
帯状金属板の接合方法には、帯状金属板同士を重ね合
わせて接合する方法又は突き合わせて接合する方法があ
る。第４図（ａ）は従来の重ね合わせ接合方法を示す斜
視図である。第４図（ａ）に示すように、帯状金属板70
の端部と帯状金属板72の端部とは重ね合わせられ、接合
面73は両面接着テープで接着されるか、又は超音波によ
って融着される（特開昭59−24526号公報の第４図及び
第６図）。As a joining method of the band-shaped metal plates, there is a method of joining the band-shaped metal plates by overlapping each other or a method of joining them by abutting each other. FIG. 4 (a) is a perspective view showing a conventional overlap joining method. As shown in FIG.
And the end of the band-shaped metal plate 72 are overlapped with each other, and the joining surface 73 is bonded with a double-sided adhesive tape or fused by ultrasonic waves (Japanese Patent Application Laid-Open No. 59-24526, No. 4). FIG. 6 and FIG. 6).
又、第４図（ｂ）は従来の帯状金属板の突き合わせ接
合方法を示す斜視図である。第４図（ｂ）に示すよう
に、帯状金属板70、72の端部同士は突き合わせられ、突
き合わせ接合部75は片面接着テープ76、76によって接合
される（特開昭59−24526号公報の第２図）。FIG. 4B is a perspective view showing a conventional butt-joining method of a strip-shaped metal plate. As shown in FIG. 4 (b), the ends of the strip-shaped metal plates 70, 72 are butted together, and the butt joints 75 are joined by single-sided adhesive tapes 76, 76 (Japanese Patent Application Laid-Open No. 59-24526). FIG. 2).
しかしながら、第４図（ａ）に示すような従来の帯状
金属板の接合方法では、接合部に段差があるため、パス
ローラ等に円滑に接することが出来ない。又、平版印刷
板製造における感光層塗布工程において、塗布装置は帯
状金属板の接合部が通過する際に破損防止のために退避
させなければならない。また、塗布装置を退避させる必
要がない場合でも接合面73は、塗布状態に悪影響を与え
品質不良を起こす。However, in the conventional method of joining strip-shaped metal plates as shown in FIG. 4 (a), the joining portion has a step, so that it cannot be smoothly contacted with a pass roller or the like. In addition, in the photosensitive layer coating step in the production of a lithographic printing plate, the coating device must be retracted to prevent breakage when the joint of the strip-shaped metal plate passes. Further, even when it is not necessary to retract the coating device, the bonding surface 73 has a bad influence on the coating state and causes poor quality.
又、この様な不具合の他に接合面73が全面にわたって
接着されない場合が多いため、帯板の搬送中に接合面73
がめくれる事がある。又、工程上、処理液を用いた帯状
金属板の表面処理工程が存在する場合、帯状金属板が処
理液中を通過する際、接合面73の隙間の中に処理液等の
異物が入り込み、後工程での品質不良発生の原因とな
る。In addition, in addition to such a defect, the bonding surface 73 is often not adhered over the entire surface.
It can be curse. Further, in the process, when there is a surface treatment step of the band-shaped metal plate using the treatment liquid, when the band-shaped metal plate passes through the treatment liquid, foreign matter such as the treatment liquid enters the gap of the bonding surface 73, It causes quality defects in the post-process.
又、第４図（ｂ）に示す突き合わせによる接合方法で
は片面接着テープ76、76によって接合されるため、接合
部はテープ76、76による厚みの段差を生じる。この段差
は第４図（ａ）で示した重ね合わせ接合方法における不
具合と同様な不具合を生じる。特に、この方法の場合
は、工程中をパスロール等により搬送されている間に、
突き合わせ部のテープ76、76が突き合わせ部の帯板の縁
でけずられるため強度が弱くなり、切断し易いという問
題点がある。更に、このような接合帯状金属板は、パス
ローラを通過する際に曲げ応力を受けるが、この曲げ応
力によって接合部に破断が生じ易くなる。特に、0.1mm
乃至0.2mm等の薄い帯状板の場合や、接合される双方の
帯状板の厚みに大きな差がある場合には顕著に起こる。In addition, in the joining method by abutting shown in FIG. 4 (b), since the joining is performed by the single-sided adhesive tapes 76, 76, the joining portion has a step in thickness due to the tapes 76, 76. This step causes the same problem as the problem in the overlap joining method shown in FIG. 4 (a). In particular, in the case of this method, while being conveyed by a pass roll or the like during the process,
There is a problem that the tapes 76 of the butted portion are broken at the edge of the band plate of the butted portion, so that the strength is weakened and cutting is easy. Further, such a bonded strip-shaped metal plate is subjected to bending stress when passing through the pass roller, and the bending stress tends to cause breakage at the bonded portion. In particular, 0.1mm
In the case of a thin strip of about 0.2 mm or less, or when there is a large difference between the thicknesses of the two strips to be joined, it occurs remarkably.
これらの不具合を解決すべく、帯状金属板同士を溶接
接合し、その溶接接合部を圧延して段差の解消を図る接
合方法また、接合部に溶接によって生じる熱影響部に応
力集中が起こりにくいような加工を施す接合方法が開示
されている。In order to solve these problems, a method of welding strip-shaped metal plates to each other and rolling the welded joint to eliminate the step difference. Also, stress concentration is unlikely to occur in the heat affected zone caused by welding at the joint. There is disclosed a joining method for performing various processing.
この方法には、一般に自動アーク溶接が適用され、第
５図に示すように、電極86と帯状金属板10、22を非接触
状態で点弧（アーク発生）することが多い。即ち、溶接
トーチ84内にHe、Ar等の混合ガスを流入し、この混合ガ
スをトーチカップ85の開口部85Aから、シールドガスと
して下方に吹き出しながら電極86と、バックバー87との
間のアーク電圧でアークを発生させる。次に、溶接トー
チ84を、帯状金属板10、22の接合予定部に沿って（第５
図上で矢印Ａ方向に）移動させて帯状金属板10、22を溶
接接合する。Automatic arc welding is generally applied to this method, and as shown in FIG. 5, the electrode 86 and the strip-shaped metal plates 10 and 22 are often fired in a non-contact state (arc generation). That is, a mixed gas such as He or Ar flows into the welding torch 84, and the mixed gas is blown downward as a shielding gas from the opening 85A of the torch cup 85, and the arc between the electrode 86 and the back bar 87 is discharged. An arc is generated by voltage. Next, the welding torch 84 is moved along the portion where the band-shaped metal plates 10 and 22 are to be joined (fifth point).
(In the direction of arrow A in the figure) to weld the strip-shaped metal plates 10 and 22 together.
しかしながら、アークが安定したアークに変化するま
でに発生時から0.1秒ないし数秒のタイムラグがあるの
で、アーク発生後直ちに帯状金属板10、22を溶接接合す
ると、設定値より大きい、又は小さいアーク電流で帯状
金属板の溶接接合を行うことになる。即ち、帯状金属板
が薄い場合、アーク発生直後は設定値より大きいアーク
電流でアークが発するので溶接開始端が溶断するという
問題がある。一方、帯状金属板が厚い場合、設定値より
小さいアーク電流でアークが発生するので溶接開始端に
溶融不良や未溶融が発生するという問題がある。However, since there is a time lag of 0.1 seconds to several seconds from the time when the arc is generated until the arc changes to a stable arc, if the belt-shaped metal plates 10, 22 are welded immediately after the arc is generated, an arc current larger or smaller than the set value is obtained. Welding of the strip-shaped metal plate is performed. That is, when the strip-shaped metal plate is thin, an arc is generated with an arc current larger than the set value immediately after the arc is generated, so that there is a problem that the welding start end is blown. On the other hand, when the band-shaped metal plate is thick, an arc is generated with an arc current smaller than the set value, so that there is a problem that poor melting or unmelting occurs at the welding start end.
更に、アーク発生直後は電極86の温度が安定せず、電
子の受け渡しが不安定になりやすいので、アークが不安
定なり、特に薄板に成形された帯状金属板の溶接接合で
は溶接開始端部でのビード不均一の原因となりやすく、
溶融不良、穴あき発生、外観不良（光沢感なくなる）等
が生じるという問題がある。Further, immediately after the arc is generated, the temperature of the electrode 86 is not stable, and the transfer of electrons is likely to be unstable, so that the arc becomes unstable, especially at the welding start end portion in the welding joining of a strip-shaped metal plate formed into a thin plate. Tends to cause non-uniform beads,
There is a problem that poor melting, occurrence of holes, poor appearance (loss of glossiness), and the like occur.
尚、上述した溶断、溶融不良、未溶融、穴あき等は、
溶接接合部の強度に著しい悪影響をおよぼすだけでな
く、後工程に表面処理工程や塗布工程がある場合、それ
らの工程中に薬液の裏回り等でロール類に汚れが発生す
るという問題や、接合端部でロール類に傷をつけやすい
問題がある。In addition, the above-mentioned fusing, poor melting, unmelted, perforated, etc.
In addition to having a significant adverse effect on the strength of the welded joint, if there is a surface treatment step or coating step in the post-process, problems such as contamination of the rolls due to the back of the chemical solution during those processes, There is a problem that the rolls are easily damaged at the end.
本発明はこのような事情に鑑みてなされたもので、帯
状金属板同士の溶接接合部の溶断、溶融不良、未溶融、
穴あき及び外観不良等が発生しない帯状金属板の接合方
法を提案することを目的としている。The present invention has been made in view of such circumstances, and the fusion of the welded joint between the strip-shaped metal plates, poor melting, unmelted,
An object of the present invention is to propose a joining method of a strip-shaped metal plate that does not cause perforation and poor appearance.
本発明は前記目的を達成する為に、帯状金属板の端部
同士をTIG溶接で溶接接合する方法に於いて、前記溶接
接合を開始する前に前記帯状金属板から離した位置で前
記帯状金属板と溶接トーチの溶接電極を非接触状態でア
ークを発生させると共に、溶接電流が安定する設定値よ
りも大きなパルス状の電流を0.2〜1.0秒間発生させ且つ
アーク発生時から0.6秒以上経過させてアークを安定さ
せた後に前記溶接トーチを前記帯状金属板上に移動して
前記帯状金属板同士の溶接を開始することを特徴とす
る。In order to achieve the above object, the present invention provides a method of welding and joining end portions of a band-shaped metal plate by TIG welding, wherein the band-shaped metal plate is separated from the band-shaped metal plate before starting the welding connection. Along with generating an arc in a non-contact state with the plate and the welding electrode of the welding torch, generating a pulse-shaped current larger than the set value at which the welding current is stabilized for 0.2 to 1.0 seconds and elapse of 0.6 seconds or more from the time of arc generation. After stabilizing the arc, the welding torch is moved onto the metal strip to start welding between the metal strips.
本発明によれば、溶接接合を開始する前に前記帯状金
属板から離した位置で前記帯状金属板と溶接トーチの溶
接電極を非接触状態でアークを発生させると共に、溶接
電流が安定する設定値よりも大きなパルス状の電流を0.
2〜1.0秒間発生させ且つアーク発生時から0.6秒以上経
過させてアークを安定させた後に前記溶接トーチを前記
帯状金属板上に移動して前記帯状金属板同士の溶接を開
始するようにしたので、アークが設定値に落ち着いてか
ら溶接することができ、更に、電極の温度が安定してか
ら溶接することができる。According to the present invention, an arc is generated in a non-contact state between the band-shaped metal plate and the welding electrode of the welding torch at a position separated from the band-shaped metal plate before starting welding, and a set value at which a welding current is stabilized. Pulse current larger than 0.
Since the arc is stabilized by generating for 2 to 1.0 seconds and elapse of 0.6 seconds or more from the time of arc generation, the welding torch is moved onto the metal strip to start welding between the metal strips. The welding can be performed after the arc has settled to the set value, and the welding can be performed after the temperature of the electrode is stabilized.
以下添付図面に従って本発明に係る帯状金属板の接合
方法の好ましい実施例を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は本発明に係る帯状金属板の接合方法の説明図
である。第１図に示すようにAl合金の帯状金属板10はロ
ール12から巻戻されパスローラ14に転送されて接合装置
16に搬送される。接合装置16のプリカット装置18は２組
のカッタ刃20、20から構成されている。帯状金属板10の
先端部10Aは、プリカット装置18によって切断され、Al
合金の帯状金属板22の後端部22Aと正確に突き合わせ又
は微小量重ね合わせができるように形成される。FIG. 1 is an explanatory view of a method for bonding a strip-shaped metal plate according to the present invention. As shown in FIG. 1, a strip-shaped metal plate 10 made of an Al alloy is rewound from a roll 12 and transferred to a pass roller 14, where the joining device is used.
It is transported to 16. The pre-cutting device 18 of the joining device 16 is composed of two sets of cutter blades 20,20. The tip portion 10A of the strip-shaped metal plate 10 is cut by the pre-cut device 18, and
It is formed so that it can be accurately butted or overlapped with the rear end portion 22A of the strip-shaped metal plate 22 made of the alloy.
プリカット装置18の後段には溶接装置24が設けられ、
溶接装置24はクランプ26、28と、溶接トーチ30とから構
成されている。クランプ26には帯状金属板10の先端部10
Aが保持され、クランプ28には帯状金属板22の後端部22A
が保持される。従って、先端部10Aと後端部22Aとは、第
２図に示すように、互いに突き合わされ、高周波パルス
アーク溶接で突き合わせ部を溶接する。即ち、溶接トー
チ30は第２図に示す突き合わせ部のＡ位置からＢ位置の
方向（矢印Ｃ方向）に移動して帯状金属板端部10A、22A
を溶接接合する。A welding device 24 is provided after the pre-cut device 18,
The welding device 24 includes clamps 26 and 28 and a welding torch 30. The tip 26 of the strip-shaped metal plate 10 is
A is held, and the rear end 22A of the strip-shaped metal plate 22 is
Is held. Therefore, as shown in FIG. 2, the front end portion 10A and the rear end portion 22A are butted against each other, and the butted portion is welded by high-frequency pulse arc welding. That is, the welding torch 30 moves from the position A of the butted portion shown in FIG.
Is welded.
本実施例の場合、溶接トーチ30は6m/分の速度で帯状
金属板の突き合わせ部に沿って移動し、また、溶接電流
は、先端部10Aと後端部22Aとを十分に溶融させる熱量を
供給することが出来るように設定されている。In the case of this embodiment, the welding torch 30 moves along the butt portion of the strip-shaped metal plate at a speed of 6 m / min, and the welding current is reduced by the amount of heat enough to melt the front end 10A and the rear end 22A. It is set so that it can be supplied.
第３図は本発明に係る帯状金属板の接合方法の溶接装
置24の作動フローシートである。FIG. 3 is an operation flow sheet of the welding device 24 in the method of joining strip metal sheets according to the present invention.
以下第３図に於いて、溶接装置24の作用について説明
する。先ず、第３図の（ａ）に示すように、溶接開始の
信号がONの状態に設定されると、第３図の（ｃ）に示す
ように、アーク発生回路に電圧が印加されて第３図の
（ｄ）に示すように、アークが発生する。アーク発生と
同時に第３図の（ｅ）に示すように、トーチ保持タイマ
が作動し、溶接トーチ30をt2秒間所定位置に保持する。
t2秒経過後、トーチ保持タイマが解除され、第３図の
（ｆ）に示すように、溶接トーチ30が移動して帯状金属
板10の先端部10Aと、帯状金属板22の先端部22Aとを溶接
接合する。溶接トーチ30のアーク電流は、第３図の
（ｇ）に示すように、アーク発生回路がONとなってから
約t1秒間は設定値〔１〕より高い〔２〕の値まで跳ね上
がり、その後は設定値〔１〕で安定している。従って、
アーク発生後、t2秒間溶接トーチ30を保持した後溶接ト
ーチ30を移動して帯状金属板同士を溶接接合するので、
アークが設定値〔１〕に落ち着いてから溶接接合するこ
とができる。溶接接合終了後、第３図の（ｂ）に示すよ
うに、溶接終了の信号がONの状態に設定され、アークの
発生が停止する。Hereinafter, the operation of the welding device 24 will be described with reference to FIG. First, as shown in FIG. 3 (a), when the welding start signal is set to the ON state, a voltage is applied to the arc generating circuit as shown in FIG. As shown in FIG. 3D, an arc is generated. Simultaneously with the occurrence of the arc, as shown in FIG. 3 (e), the torch holding timer is activated to hold the welding torch 30 at a predetermined position for t 2 seconds.
After a lapse of 2 seconds, the torch holding timer is released, and the welding torch 30 moves to move the leading end 10A of the strip-shaped metal plate 10 and the leading end 22A of the strip-shaped metal plate 22, as shown in FIG. And welded. Arc current of the welding torch 30, as shown in the FIG. 3 (g), the arcing circuit about t 1 seconds after the ON jump to a value higher [2] than the set value [1], then Is stable at the set value [1]. Therefore,
After the arc is generated, hold the welding torch 30 for 2 seconds and then move the welding torch 30 to weld and join the strip-shaped metal plates.
After the arc has settled to the set value [1], welding can be performed. After the end of the welding, as shown in FIG. 3B, the signal of the end of the welding is set to the ON state, and the generation of the arc is stopped.
尚、t1は0.2〜1.0秒t2は0.6秒以上であることが望ま
しい。Incidentally, t 1 is 0.2 to 1.0 sec t 2 is desirably more than 0.6 seconds.
溶接装置24の後段には圧延装置32が設けられ、圧延装
置32の圧延ローラ34は帯状金属板端部10A、22A同士の溶
接接合部の圧延を行う。このような圧延処理によって、
溶接接合部に生じた段差は押圧圧縮される。この圧延処
理により接合強度は高められる。これは溶接によって低
下した引張強度が圧延処理によって加工硬化して回復す
ると同時に、応力集中を起こしにくい形状に加工するた
めである。A rolling device 32 is provided downstream of the welding device 24, and a rolling roller 34 of the rolling device 32 rolls a welded joint between the end portions 10A and 22A of the strip-shaped metal plates. By such a rolling process,
The step generated at the weld joint is pressed and compressed. This rolling process increases the bonding strength. This is because the tensile strength reduced by welding is work-hardened by the rolling process to recover, and at the same time, it is processed into a shape that does not easily cause stress concentration.
前記実施例では帯状金属板10と帯状金属板22とを突き
合わせたが、これに限らず、微小重ね合わせてもよい。
尚、帯状金属板10と帯状金属板22とを微小重ね合わせ接
合した場合には、特に圧延処理が必要とされる。In the above-described embodiment, the band-shaped metal plate 10 and the band-shaped metal plate 22 are abutted with each other.
In addition, when the band-shaped metal plate 10 and the band-shaped metal plate 22 are minutely overlapped and joined, a rolling process is particularly required.
以下、本発明に係る帯状金属板の接合方法（アーク発
生時から0.6秒以上経過後溶接接合開始）で溶接接合さ
れた接合部と、アーク発生時から0.5sec以前に溶接接合
開始して溶接接合された接合部との比較試験について説
明する。Hereinafter, a welded portion welded by the method for joining strip-shaped metal plates according to the present invention (weld joining started after elapse of 0.6 seconds or more from the time of arcing), and a welded joint started by welding 0.5 seconds or less from the time of arcing A comparison test with the joined portion will be described.
試験用のサンプルNo.1〜No.5、及びサンプルNo.11〜N
o.40は板厚寸法0.10mm幅寸法915mmのAl合金の帯状金属
板同士を1mm重ね合わせた状態で溶接したものである。Test sample No.1 to No.5 and sample No.11 to N
In the case of o.40, Al alloy strip metal plates having a thickness of 0.10 mm and a width of 915 mm were welded in a state of being overlapped by 1 mm.
サンプルNo.6〜No.10は板厚寸法0.50mm幅寸法1470mm
のAl合金の帯状金属板同士を1mm重ね合わせた状態で溶
接したものである。Samples No.6 to No.10 have a thickness of 0.50mm and a width of 1470mm
Are welded in a state where the Al alloy strip-shaped metal plates are overlapped by 1 mm.
サンプルNo.41〜No.43は板厚寸法0.24mm幅寸法840mm
のAl合金の帯状金属板と板厚寸法0.10mm幅寸法840mmのA
l合金の帯状金属板を1mm重ね合わせた状態で溶接し、更
に、板厚寸法0.10mmの帯状金属板に生じた熱影響部と、
隣接する溶融部・Al母材との板厚寸法差が30％以上にな
るように接合部を圧延加工したものである。Sample No. 41 to No. 43 are 0.24mm in thickness and 840mm in width
Al alloy strip metal plate and plate thickness 0.10mm width 840mm A
l Welded in a state where the alloy strip metal plate was overlapped by 1 mm, furthermore, the heat affected zone generated on the strip metal plate of 0.10 mm thickness,
The joining portion was rolled so that the difference in thickness between the adjacent molten portion and the Al base material was 30% or more.
また、サンプルNo.1〜No.43は6m/分の溶接速度で溶接
され、サンプルNo.1〜No.5、No.11〜No.40の溶接電流は
16A、サンプルNo.6〜No.10の溶接電流は105A、サンプル
No.41〜No.43の溶接電流は26Aとした。但し、いずれも
アーク発生時の電流は30Aとした。Samples No.1 to No.43 were welded at a welding speed of 6 m / min, and the welding current of Samples No.1 to No.5 and No.11 to No.40 was
16A, sample No.6 ~ No.10 welding current is 105A, sample
The welding current of No. 41 to No. 43 was 26 A. However, in each case, the current at the time of arc generation was 30 A.
尚、サンプルNo.41〜No.43は同一条件で圧延した。 Note that samples No. 41 to No. 43 were rolled under the same conditions.
比較試験１では、サンプルNo.1〜No.5のアーク発生か
ら溶接開始までの時間をそれぞれ１秒、0.7秒、0.6秒、
0.5秒、０秒とし、サンプルNo.6〜No.10アーク発生から
溶接開始までの時間を、それぞれ１秒、0.6秒、0.5秒、
0.4、０秒とし、溶接開始端部の溶断及び溶融不良につ
いて比較した。その結果を第１表に示す。In Comparative Test 1, the time from the generation of the arc to the start of welding for samples No. 1 to No. 5 was 1 second, 0.7 seconds, 0.6 seconds,
0.5 seconds and 0 seconds, the time from the sample No. 6 to No. 10 arc generation to the start of welding are 1 second, 0.6 seconds, 0.5 seconds,
0.4 and 0 seconds were set, and the welding start end was compared for fusing and poor melting. Table 1 shows the results.
比較試験２では、サンプルNo.11〜No.20、サンプルN
o.21〜No.30、及びサンプルNo.31〜No.40のアーク発生
から溶接開始までの時間を、それぞれ1.0秒、0.6秒、0.
5秒とし、外観不良（スス状の汚れが発生して光沢感が
なくなる）の発生割合を比較した。その結果を第２表に
示す。 In Comparative Test 2, samples No. 11 to No. 20, sample N
The time from arc generation to the start of welding of o.21 to No.30 and sample No.31 to No.40 was 1.0 second, 0.6 second, and 0.
Five seconds were used, and the occurrence ratios of appearance defects (soot-like stains were generated and glossiness was lost) were compared. Table 2 shows the results.
比較試験３ではサンプルNo.41〜No.43を用いて、これ
らに張力235kgを負荷しながら、ゴムロール（φ600）２
本、及びゴムロール（φ200）22本、及びゴムロール
（φ180）２本間に周回させ、切断するまでの周回数を
調査した。 In Comparative Test 3, samples No. 41 to No. 43 were used while applying a tension of 235 kg to these rubber rolls (φ600).
It was wrapped around a book, 22 rubber rolls (φ200), and two rubber rolls (φ180), and the number of turns until cutting was examined.
このパスローラ通過テストの結果を第３表に示す。 Table 3 shows the results of the pass roller pass test.
第１表から明らかなように、本発明に係る帯状金属板
の接合方法で溶接接合したサンプルNo.1、２、３、６、
７には許容範囲外の不良が発生しない。 As is clear from Table 1, samples No. 1, 2, 3, 6, which were welded and joined by the method for joining strip metal plates according to the present invention.
No defect out of the allowable range occurs in 7.
また、第２表から明らかなように、アーク発生から溶
接開始までの時間を長くすれば、0.1mm−0.1mmのよう
な、スス状汚れの発生しやすい薄板帯状金属板の接合で
も汚れ発生率が低くなる。Also, as is clear from Table 2, if the time from arc generation to the start of welding is lengthened, the dirt generation rate can be reduced even in the joining of thin strip-shaped metal plates, such as 0.1 mm-0.1 mm, where soot-like dirt tends to occur. Becomes lower.
更に、第３表から明らかなように、アーク発生から溶
接開始までの時間が１秒のサンプルでは、溶断長さが1m
m程度と、他のサンプルより小さく、亀裂発生に到るま
でのハンドリング強度も大きい。Furthermore, as is clear from Table 3, in the sample in which the time from arc generation to the start of welding is 1 second, the fusing length is 1 m.
m, which is smaller than other samples, and has a high handling strength before cracking.
前記実施例では高周波パルスアーク溶接について説明
したが、これに限らず、他のTIG溶接でも同様の効果を
得ることが出来る。Although high frequency pulse arc welding has been described in the above embodiment, the present invention is not limited to this, and similar effects can be obtained with other TIG welding.
以上説明したように、本発明に係る帯状金属板の接合
方法によれば、帯状金属板から離してアークを発生させ
ると共に、溶接電流が安定する設定値よりも大きなパル
ス状の電流を0.2〜1.0秒間発生させ且つアーク発生時か
ら0.6秒以上経過した後に帯状金属板の端部同士を溶接
接合するので、アーク電流が設定値に安定した状態で溶
接接合することが出来る。As described above, according to the method for bonding a strip-shaped metal plate according to the present invention, an arc is generated apart from the strip-shaped metal plate, and a pulse-shaped current larger than a set value at which the welding current is stabilized is 0.2 to 1.0. Since the end portions of the strip-shaped metal plates are welded to each other for 0.6 seconds after the arc is generated for 0.6 seconds or more, welding can be performed in a state where the arc current is stabilized at a set value.
従って、溶接接合部の溶断、溶融不良、未溶接、穴あ
き、及び外観不良等を防止することが出来、また、溶接
接合部の強度を向上させることができ、更に、溶接接合
工程後の表面処理工程や塗布工程においてロール類に汚
れや傷が発生することを防止することが出来る。Therefore, it is possible to prevent fusing, poor melting, unwelding, perforation, and poor appearance of the welded joint, improve the strength of the welded joint, and further improve the surface after the welding joint process. It is possible to prevent the rolls from being stained or damaged in the processing step or the coating step.
第１図は本発明に係る帯状金属板の接合方法の説明図、
第２図は本発明に係る帯状金属板の接合方法で帯状金属
板を溶接した状態を示す平面図、第３図は本発明に係る
帯状金属板の接合方法に使用する溶接装置の作動フロー
シート及びアーク電流と時間との関係図、第４図（ａ）
及び（ｂ）は従来の帯状金属板の接合方法の斜視図、第
５図は従来の溶接装置の溶接電極と帯状金属板との位置
関係を示す概略説明図である。 10、22……帯状金属板、10A、22A……先端部、16……接
合装置、18……プリカット装置、24……溶接装置、30、
84……溶接トーチ、86……溶接電極。FIG. 1 is an explanatory diagram of a method of joining a strip-shaped metal plate according to the present invention,
FIG. 2 is a plan view showing a state where the band-shaped metal plates are welded by the method for joining band-shaped metal plates according to the present invention, and FIG. 3 is an operation flow sheet of a welding device used in the method for joining band-shaped metal plates according to the present invention. And the relationship between arc current and time, FIG. 4 (a)
5 (a) and 5 (b) are perspective views of a conventional method for joining a strip-shaped metal plate, and FIG. 5 is a schematic explanatory view showing a positional relationship between a welding electrode of a conventional welding device and the strip-shaped metal plate. 10, 22 ... strip metal plate, 10A, 22A ... tip, 16 ... joining device, 18 ... pre-cut device, 24 ... welding device, 30,
84 ... welding torch, 86 ... welding electrode.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−132773（ＪＰ，Ａ) 特開 昭63−212069（ＪＰ，Ａ) 特開 昭52−63136（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B23K 9/167 A B23K 9/025 A────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-132773 (JP, A) JP-A-63-212069 (JP, A) JP-A-52-63136 (JP, A) (58) Field (Int.Cl. 6 , DB name) B23K 9/167 A B23K 9/025 A
Claims (1)
合する方法に於いて、 前記溶接接合を開始する前に前記帯状金属板から離した
位置で前記帯状金属板と溶接トーチの溶接電極を非接触
状態でアークを発生させると共に、溶接電流が安定する
設定値よりも大きなパルス状の電流を0.2〜1.0秒間発生
させ且つアーク発生時から0.6秒以上経過させてアーク
を安定させた後に前記溶接トーチを前記帯状金属板上に
移動して前記帯状金属板同士の溶接を開始することを特
徴とする帯状金属板の接合方法。In a method of welding and joining end portions of a strip-shaped metal plate by TIG welding, welding of the strip-shaped metal plate and a welding torch at a position separated from the strip-shaped metal plate before starting the welding-joining. After generating an arc in a non-contact state with the electrode, generating a pulse-shaped current larger than the set value at which the welding current is stabilized for 0.2 to 1.0 seconds, and after elapse of 0.6 seconds or more from the time of the arc generation, and stabilizing the arc. A method for joining metal strips, wherein the welding torch is moved onto the metal strip and welding of the metal strips is started.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1020534A JP2832912B2 (en) | 1989-01-30 | 1989-01-30 | Bonding method of metal strip |
| DE69013525T DE69013525T2 (en) | 1989-01-30 | 1990-01-29 | Method and device for joining metal beans. |
| EP90101725A EP0381115B1 (en) | 1989-01-30 | 1990-01-29 | Method and apparatus for splicing metal webs |
| US08/395,290 US5506387A (en) | 1989-01-30 | 1995-02-27 | Method and apparatus for splicing metal webs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1020534A JP2832912B2 (en) | 1989-01-30 | 1989-01-30 | Bonding method of metal strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02200380A JPH02200380A (en) | 1990-08-08 |
| JP2832912B2 true JP2832912B2 (en) | 1998-12-09 |
Family
ID=12029821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1020534A Expired - Fee Related JP2832912B2 (en) | 1989-01-30 | 1989-01-30 | Bonding method of metal strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2832912B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2739882B2 (en) * | 1991-04-09 | 1998-04-15 | 富士写真フイルム株式会社 | Bonding method of metal strip |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916870B2 (en) * | 1975-11-19 | 1984-04-18 | 松下電器産業株式会社 | Pulse arc setup |
| JPS63132773A (en) * | 1986-11-22 | 1988-06-04 | Shinko Electric Co Ltd | Welding equipment |
| JPH0615104B2 (en) * | 1987-02-27 | 1994-03-02 | 日本鋼管工事株式会社 | Start method for automatic tag welding |
-
1989
- 1989-01-30 JP JP1020534A patent/JP2832912B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02200380A (en) | 1990-08-08 |
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