JPH08281475A - Flux cored wire for gas shield arc welding for coating finished steel plate - Google Patents
Flux cored wire for gas shield arc welding for coating finished steel plateInfo
- Publication number
- JPH08281475A JPH08281475A JP8159995A JP8159995A JPH08281475A JP H08281475 A JPH08281475 A JP H08281475A JP 8159995 A JP8159995 A JP 8159995A JP 8159995 A JP8159995 A JP 8159995A JP H08281475 A JPH08281475 A JP H08281475A
- Authority
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- Prior art keywords
- slag
- welding
- coating
- cored wire
- wire
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガスシールドアーク溶
接の後、塗料により塗装仕上げされる鋼板の溶接におい
て、特に塗膜の密着性の良好な溶接部を形成させるとが
できるガスシールドアーク溶接用フラックス入りワイヤ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to gas shielded arc welding capable of forming a welded portion having particularly good adhesion of a coating film in the welding of a steel sheet coated with paint after gas shielded arc welding. Flux-cored wire for use.
【０００２】[0002]
【従来の技術】一般に溶接鋼構造物、部品等は、溶接
後、硝化綿系や合成樹脂系等の塗料により塗装仕上げさ
れることが普通であり、特に薄板分野では、屋根板をは
じめとする建築材料、電気機器の部品、自動車車体等の
ように、防錆および美観上の理由から高品質な塗装性が
要求されている。2. Description of the Related Art In general, welded steel structures, parts, etc. are usually painted and finished with a paint such as a nitrification cotton type or a synthetic resin type after welding. High-quality paintability is required for rust prevention and aesthetic reasons, such as construction materials, parts of electric equipment, and car bodies.
【０００３】一方、近年溶接の自動化が発達し、リソッ
ドワイヤやメタル系フラックス入りワイヤを使用し、溶
接ロボット等の自動溶接装置を用いたガスシールドアー
ク溶接による溶接工程と、洗浄・塗装工程等を連続させ
た一貫ライン化により効率的な施工を行う方法が採用さ
れている。そのため、従来の手溶接や半自動溶接方法の
ように、溶接後、溶接者がたがねで丁寧にスラグを除去
したり、ワイヤブラシ等で清掃する工程が省略される傾
向にある。特にメタル系フラックス入りワイヤは、薄板
の溶接における耐溶落ち性や溶接継手開先部の耐ギャッ
プ性、さらにはスパッタが少ない等の溶接性に優れるた
め、自動溶接分野での適用範囲が拡大している。On the other hand, the automation of welding has been developed in recent years, and the welding process by gas shield arc welding using an automatic welding device such as a welding robot using a solid wire or a metal flux-cored wire and a cleaning / painting process are continuously performed. The method of performing efficient construction by adopting the integrated line is adopted. Therefore, as in the conventional manual welding or semi-automatic welding method, after welding, there is a tendency that a welder carefully removes the slag with a chisel or a step of cleaning with a wire brush or the like. In particular, metal-based flux-cored wire has excellent burn-through resistance during welding of thin plates, gap resistance at the weld joint groove, and excellent weldability such as less spatter, so its application range in the automatic welding field has expanded. There is.
【０００４】しかしながら、メタル系フラックス入りワ
イヤを用いたガスシールドアーク溶接においてはスラグ
の発生は皆無とはいえず、単位溶着金属量当たりの質量
百分率で数％程度のスラグが発生する。また、スラグ組
成によっては硬質のスラグとなり、かつ極少量であるた
め、溶接ビード趾端部やクレータ部ではスラグが溶接ビ
ードに噛み込んで非常に剥離し難いため、溶接直後には
完全には除去されず、塗装工程にそのまま供された場合
には、スラグ部に塗膜が付着しなかったり、塗膜が付着
した場合でもわずかな応力でスラグ部が剥離し、塗装不
良品となる場合があった。However, in gas shielded arc welding using a metal-based flux-cored wire, it cannot be said that slag is not generated at all, and slag of about several% is generated in a mass percentage per unit amount of deposited metal. Also, depending on the slag composition, it becomes a hard slag, and since it is an extremely small amount, it is very difficult to peel it off because the slag bites into the weld bead at the toe end and crater of the weld bead, so it is completely removed immediately after welding. However, if it is used in the coating process as it is, the coating film may not adhere to the slag portion, or even if the coating film adheres, the slag portion may peel off with a slight stress, resulting in a defective coating product. It was
【０００５】[0005]
【発明が解決しようとする課題】従来、溶接部は溶接後
スラグを除去して塗装に供されるのが通常であるとの考
えから、前述のような塗装不良に対しては、溶接方法に
よる対策は全く考慮されておらず、たとえ微少量ではあ
っても、スラグが付着している部分は再清掃および再塗
装によって手直ししなければならなかった。Conventionally, since it is generally considered that the welded portion is used for painting after removing the slag after welding, the welding method can be applied to the above-mentioned coating failure. No countermeasures were taken into consideration, and even if the amount was very small, the part where the slag adhered had to be repaired by recleaning and repainting.
【０００６】本発明は、このような塗装不良の問題に対
し、特定の成分のフラックス入りワイヤを使用すること
によって解決することを課題としてなされたものであ
る。[0006] The present invention has been made to solve the problem of coating failure by using a flux-cored wire having a specific component.
【０００７】[0007]
【課題を解決するための手段】一般に、溶接スラグは溶
接後除去して塗装されることが普通であるが、本発明者
らは、 ア．スラグの存在自体は溶接部の強度に影響を及ぼすも
のではない、 イ．使用中に剥離さえしなければスラグを除去する必要
がない、 ウ．溶接後に塑性加工しない部品、構造であれば、スラ
グ付着部に作用する弾性ひずみ量は数％以内である、 との着想から、逆にスラグを剥離し難く、かつ塗装性の
良好な性状とすることによって、スラグを付着させたま
までも密着性の良好な塗膜を保持できれば、溶接コスト
的にも優れた方法であると考え、本発明のガスシールド
アーク溶接用フラックス入りワイヤを創案した。Generally, the welding slag is usually removed and then painted after welding. The presence of slag itself does not affect the strength of the weld, a. It is not necessary to remove slag if it does not peel off during use. From the idea that the amount of elastic strain acting on the slag adhesion part is within a few percent if the parts and structure are not plastically worked after welding, conversely it is difficult to peel off the slag and the property is good in paintability. Therefore, if a coating film having good adhesion can be retained even with slag adhered, it is considered to be an excellent method in terms of welding cost, and a flux-cored wire for gas shield arc welding of the present invention was devised.
【０００８】すなわち、本発明の要旨とするところは、
鋼製外皮に金属粉を主体としたフラックスを充填して構
成されるメタル系フラックス入りワイヤにおいて、ワイ
ヤ全体に対する質量百分率でＣ：０．２０％以下、Ｓ
ｉ：０．１０〜０．６０％、Ｍｎ：０．６０〜１．５０
％、Ｎｂ、ＶおよびＰの１種または２種以上：０．０５
〜０．３０％、スラグ剤：１．０％以下、かつスラグ剤
中のＦｅＯ、ＳｉＯ2 が質量比で（ＦｅＯ／ＳｉＯ2 ）
≧１．０であることを特徴とする塗装仕上げ鋼板用のガ
スシールドアーク溶接用フラックス入りワイヤにある。That is, the gist of the present invention is to
In a metal-based flux-cored wire constituted by filling a steel shell with a flux mainly composed of metal powder, C: 0.20% or less by mass percentage of the whole wire, S
i: 0.10 to 0.60%, Mn: 0.60 to 1.50
%, One or more of Nb, V and P: 0.05
0.30%, slag agent: 1.0% or less, and FeO in the slag agent, SiO 2 is a mass ratio (FeO / SiO 2)
A flux-cored wire for gas shield arc welding for a coated steel sheet, wherein ≧ 1.0.
【０００９】[0009]
【作用】以下に、本発明の作用を詳細に説明する。本発
明は、フラックス入りワイヤの成分を特定の範囲に調整
することによって、溶接スラグの発生量および組成を制
御し、スラグと母材およびスラグと塗膜との密着性を向
上させることにその特徴があるが、本発明の塗装仕上げ
鋼板用ワイヤでは、構成各成分の相互作用によって、溶
融金属の脱酸、合金化やアーク安定化といった従来から
知られている作用以外に、スラグの発生量およびスラグ
の物性を改質する作用が付与されている。The function of the present invention will be described in detail below. The present invention is characterized in that by adjusting the components of the flux-cored wire within a specific range, the amount and composition of welding slag generated are controlled, and the adhesion between the slag and the base material and between the slag and the coating film is improved. However, in the coated steel sheet wire of the present invention, by the interaction of the constituent components, in addition to the conventionally known actions such as deoxidation of molten metal, alloying and arc stabilization, the amount of slag and It has an effect of modifying the physical properties of the slag.
【００１０】以下、それぞれの成分限定理由を述べる。 （１）Ｃ：０．２０％以下 Ｃは溶接時に溶融金属の脱酸剤として作用し、脱酸反応
によってＣＯやＣＯ2を生成させる元素である。ＣはＳ
ｉやＭｎのような他の脱酸元素に比べてスラグ量増加の
原因とはならないが、０．２０％を超えて過剰に添加し
た場合には、アークが不安定になるとともに生成した溶
接スラグが脆い物性となり、塗装後に剥離しやすくなる
ため、０．２０％以下に規制する必要がある。The reasons for limiting the respective components will be described below. (1) C: 0.20% or less C is an element that acts as a deoxidizer for molten metal during welding and produces CO and CO 2 by a deoxidation reaction. C is S
It does not cause an increase in the amount of slag compared to other deoxidizing elements such as i and Mn, but when added in excess of 0.20%, the arc becomes unstable and the welding slag generated Becomes brittle and easily peels off after coating, so it is necessary to control the content to 0.20% or less.
【００１１】（２）Ｓｉ：０．１０〜０．６０％ Ｍｎ：０．６０〜１．５０％ ワイヤ中のＳｉおよびＭｎは何れも脱酸剤として溶接金
属に作用し、十分な脱酸を行うためには、Ｓｉ：０．１
０％以上およびＭｎ：０．６０％以上の添加が必要であ
る。しかし、ＳｉやＭｎを過剰に添加した場合には、Ｓ
ｉＯ2 やＭｎＯのような脱酸生成物が発生してスラグ量
を増加させる。スラグ量が多量である場合には厚みのあ
るスラグが形成されやすく、たとえスラグの表面物性が
密着性の良好なものであっても、塗装後に剥離しやすく
なる。また、特にＳｉは生成スラグ中のＳｉＯ2 を増加
させ、スラグが脆い物性となる原因ともなる。従って、
Ｓｉ：０．１０〜０．６０％およびＭｎ：０．６０〜
１．５０％の範囲で添加される必要がある。(2) Si: 0.10 to 0.60% Mn: 0.60 to 1.50% Both Si and Mn in the wire act as a deoxidizing agent on the weld metal to sufficiently deoxidize it. To do this, Si: 0.1
It is necessary to add 0% or more and Mn: 0.60% or more. However, if Si or Mn is added excessively, S
Deoxidized products such as iO 2 and MnO are generated to increase the amount of slag. When the amount of slag is large, a thick slag is likely to be formed, and even if the surface properties of the slag have good adhesion, they are easily peeled off after coating. In addition, especially Si increases SiO 2 in the generated slag, which also causes the slag to become brittle. Therefore,
Si: 0.10-0.60% and Mn: 0.60-
It must be added in the range of 1.50%.
【００１２】（３）Ｎｂ、ＶおよびＰの１種または２種
以上：０．０５〜０．３０％ ワイヤ中のＮｂ、ＶおよびＰは溶接雰囲気中で酸化し、
Ｎｂ2 Ｏ5 、Ｖ2 Ｏ5、Ｐ2 Ｏ5 としてスラグ構成成分
となる。これらの酸化成分はスラグの物性に影響を及ぼ
し、スラグと母材、スラグと塗膜との密着性を向上させ
るように作用する。しかし、過剰に添加した場合にはス
ラグ自体が脆くなるとともに溶接金属の延性を損なうた
め、その適正添加範囲はＮｂ、ＶおよびＰの１種または
２種以上として：０．０５〜０．３０％とする。(3) One or more of Nb, V and P: 0.05 to 0.30% Nb, V and P in the wire are oxidized in the welding atmosphere,
Nb 2 O 5 , V 2 O 5 , and P 2 O 5 serve as slag constituents. These oxidizing components affect the physical properties of the slag and act to improve the adhesion between the slag and the base material and between the slag and the coating film. However, if added excessively, the slag itself becomes brittle and the ductility of the weld metal is impaired, so the appropriate addition range is one or two or more of Nb, V and P: 0.05 to 0.30% And
【００１３】（４）スラグ剤：１．０％以下、かつスラ
グ剤中のＦｅＯ、ＳｉＯ2 が質量比で（ＦｅＯ／ＳｉＯ
2 ）≧１．０ フラックス入りワイヤは、鋼製外皮に粉体を充填した構
造であるため、ワイヤ中にスラグ剤を添加できることが
その特徴であり、フラックス入りワイヤ特有のアーク特
性もワイヤ中スラグ量に大きく影響される。そのため、
ＳｉＯ2 を主成分とした珪酸アルカリ金属塩類やアルミ
ノ珪酸塩等が添加されていた。しかしながら、スラグ剤
が過大に添加された場合には、溶接時に発生するスラグ
量も多くなる。スラグの発生量が過大な場合には、厚み
のあるスラグが形成され、たとえスラグの表面物性が密
着性の良好なものであっても、スラグ自体が脆いために
塗装後に剥離しやすくなる。従って、ワイヤ中のスラグ
剤は１．０％以下に制限する必要がある。(4) Slag agent: 1.0% or less, and FeO and SiO 2 in the slag agent are in a mass ratio (FeO / SiO 2).
2 ) ≧ 1.0 Flux-cored wire has a structure in which powder is filled in the steel shell, so the characteristic is that a slag agent can be added to the wire, and the arc characteristics peculiar to flux-cored wire are the slag in the wire. It is greatly affected by the quantity. for that reason,
Alkali metal silicates having SiO 2 as a main component, aluminosilicate, etc. were added. However, if the slag agent is added excessively, the amount of slag generated during welding also increases. When the amount of slag generated is too large, a thick slag is formed, and even if the surface properties of the slag have good adhesion, the slag itself is brittle and therefore easily peels off after coating. Therefore, it is necessary to limit the slag agent in the wire to 1.0% or less.
【００１４】また、スラグ剤中のＦｅＯ／ＳｉＯ2 につ
いてであるが、従来のメタル系フラックス入りワイヤを
使用したガスシールドアーク溶接におけるスラグの成分
は、スラグ剤の主成分であるＳｉＯ2 と溶接ワイヤ中の
Ｓｉが溶接アーク雰囲気中で酸化して生成したＳｉＯ2
が主成分で、ＭｎＯやＦｅＯが数％程度含まれる組成で
あった。そのため、スラグ表面層はガラス質で表面張力
の小さいものが多く、溶接ビード表面や塗膜との密着性
は必ずしも良好ではなかった。鋼板およびスラグと塗膜
との密着性はＦｅＯ／ＳｉＯ2 と密接な関係があり、添
加スラグ剤中のＦｅＯ／ＳｉＯ2 が１．０未満の場合に
は、有機被膜塗装時にスラグ部の濡れ性が悪く、塗膜が
スラグ部に付着しない塗装不良が生じたり、溶接部の歪
量が大きい場合にはスラグと溶接ビードおよびスラグと
塗膜の密着性が悪くなる。従って、良好な塗装性と密着
性を得るためには、スラグ剤中のＦｅＯ／ＳｉＯ2 を
１．０以上にする必要がある。また、スラグの密着性は
本発明のワイヤ組成により制御可能であるため、本発明
ではワイヤ中のＴｉＯ2 、Ａｌ2 Ｏ3 等の酸化物成分、
他の低融点化合物等の成分は限定していないが、スラグ
の密着性を損なわない範囲での添加および不純物として
の存在も本発明に含まれる。Regarding FeO / SiO 2 in the slag agent, the components of slag in gas shielded arc welding using a conventional metal flux-cored wire are SiO 2 which is the main component of the slag agent and the welding wire. SiO 2 generated by oxidation of Si in a welding arc atmosphere
Was the main component, and the composition contained MnO and FeO in an amount of about several percent. Therefore, many slag surface layers are vitreous and have a low surface tension, and the adhesion to the surface of the weld bead and the coating film was not always good. Steel sheet and the adhesion between the slag and the coating film is closely related with the FeO / SiO 2, when FeO / SiO 2 in the additive slag agent is less than 1.0, the wettability of the slag portion during organic coating paint And the coating film does not adhere to the slag, resulting in poor coating, or when the amount of strain in the weld is large, the adhesion between the slag and the weld bead and between the slag and the coating film deteriorates. Therefore, in order to obtain good coatability and adhesiveness, it is necessary to set FeO / SiO 2 in the slag agent to 1.0 or more. Further, since the adhesion of the slag can be controlled by the wire composition of the present invention, in the present invention, oxide components such as TiO 2 , Al 2 O 3 in the wire,
Other components such as a low melting point compound are not limited, but addition within the range not impairing the adhesiveness of the slag and existence as an impurity are also included in the present invention.
【００１５】なお、本発明におけるスラグとはアーク溶
接の際に溶接ワイヤまたは溶接金属中の金属成分が酸化
したもの、あるいは母材または溶接ワイヤ中の酸化物成
分が溶融金属上に浮上して溶接ビード表面に生成したガ
ラス質または結晶質の酸化物または被膜のことである。The term "slag" used in the present invention means that the metal component in the welding wire or the weld metal is oxidized during arc welding, or the oxide component in the base metal or the welding wire floats on the molten metal and is welded. It is a glassy or crystalline oxide or film formed on the bead surface.
【００１６】[0016]
【実施例】以下に本発明を実施例により具体的に説明す
る。表１に示すワイヤ成分に調整したメタル系のフラッ
クス入りワイヤを用い、Ａｒ−２０％ＣＯ2 混合ガスに
よるガスシールドアーク溶接を行い、スラグ量およびス
ラグのＦｅＯ／ＳｉＯ2 を調整した試験溶接部を作製
し、塗装性およびスラグ剥離性との関係を調査した。EXAMPLES The present invention will be specifically described below with reference to examples. Using a metal-based flux-cored wire adjusted to the wire components shown in Table 1, gas shield arc welding was performed using an Ar-20% CO 2 mixed gas to prepare a test welded part in which the amount of slag and FeO / SiO 2 of the slag were adjusted. It was produced and investigated for its relationship with paintability and slag releasability.
【００１７】試験板は、ＪＩＳ Ｇ ３１４１ ＳＰＣ
Ｃ、板厚３．２ｍｍを使用し、２００Ａ−２５Ｖ−１ｍ
／ｍｉｎの条件でＩ型突合わせ溶接を行い、溶接部から
４０ｍｍ幅の短冊形の引張試験片を採取した。試験片の
形状寸法を図１に示す。先ず、塗装性および塗膜の剥離
性を評価するために、図１にハッチングで示す試験片の
溶接ビード側、中央４０×５０ｍｍの部分にエポキシ系
樹脂による塗装（膜厚３０μｍ）を行い、外観観察を行
った。その後、引張試験機により試験片に２％の引張歪
を与え、剥離したスラグおよび塗膜量を測定し、塗装面
積に対する剥離質量で評価した。ワイヤ成分と塗装性お
よび塗膜剥離試験結果を表２（表１のつづき）に示す。The test plate is JIS G 3141 SPC.
C, using a plate thickness of 3.2 mm, 200A-25V-1m
I-type butt welding was performed under the condition of / min, and a strip-shaped tensile test piece having a width of 40 mm was sampled from the welded portion. The geometry of the test piece is shown in FIG. First, in order to evaluate the coating property and the peeling property of the coating film, epoxy resin coating (film thickness 30 μm) was applied to the weld bead side of the test piece shown in FIG. Observed. Then, a tensile tester was used to apply a tensile strain of 2% to the test piece, the amount of slag and the amount of coating film that had been peeled off were measured, and the peeled mass relative to the coated area was evaluated. Table 2 (continued from Table 1) shows the wire components, paintability, and coating film peeling test results.
【００１８】表１、表２中Ｎｏ．１〜Ｎｏ．４が本発明
のワイヤを使用して溶接を行った例、Ｎｏ．５〜Ｎｏ．
１３が比較例である。No. 1 in Tables 1 and 2 1 to No. No. 4 is an example of welding using the wire of the present invention, No. 5-No.
13 is a comparative example.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【表２】 [Table 2]
【００２１】本発明例であるＮｏ．１〜Ｎｏ．４は良好
な塗装性が得られるとともに溶接部の塗膜剥離試験結果
も良好であり、通常の歪量では、溶接部のスラグを除去
することなく塗装仕上げを行っても塗膜が剥離すること
はないなど、極めて満足する結果であった。比較例中、
Ｎｏ．５はワイヤ中のＣが高いので塗装後の外観は良好
であるが、スラグが脆いために塗膜の剥離試験ではスラ
グ付着部からスラグおよび塗膜が剥離した。No. 1, which is an example of the present invention. 1 to No. No. 4 has good coatability, and also has good results of the peeling test of the coating on the welded portion. At normal strain, the coating peels off even if the coating finish is performed without removing the slag on the welded portion. It was a very satisfying result. In the comparative example,
No. No. 5 had a high C content in the wire and thus had a good appearance after coating. However, since the slag was brittle, the slag and the coating film were peeled from the slag adhesion portion in the coating film peeling test.
【００２２】また、ワイヤ中のＳｉおよびＭｎが本発明
の範囲より少ない例をＮｏ．６およびＮｏ．８に示す
が、何れの場合も脱酸不足によるビード外観不良となっ
た。また、Ｓｉが本発明の範囲よりも多い場合のＮｏ．
７はスラグ部で塗膜の濡れ性が劣るため、塗装時に塗膜
の付着不良が発生し、さらに塗膜の剥離試験結果も劣っ
た。Ｎｏ．９はＭｎが多いので溶接時に発生するスラグ
量が多くなり、肉厚となるため塗膜が剥離しやすくなっ
た。Further, in the case of No. 3 in which Si and Mn in the wire are less than the range of the present invention. 6 and No. 6 8, the bead appearance was poor due to insufficient deoxidation in all cases. Further, in the case where Si is larger than the range of the present invention, No.
In No. 7, the wettability of the coating film was poor at the slag portion, so that the adhesion of the coating film failed during coating and the peeling test result of the coating film was also poor. No. Since No. 9 had a large amount of Mn, the amount of slag generated at the time of welding was large, and the thickness was so thick that the coating film was easily peeled off.
【００２３】Ｎｏ．１０はＮｂ、ＶおよびＰの合計が少
ないのでスラグと母材の密着性が劣り、剥離試験によっ
てスラグが剥離した。逆に、Ｎｏ．１１はＮｂ、Ｖ、Ｐ
の合計が多すぎるためスラグが脆くなり、同様に剥離試
験によってスラグが剥離した。さらに、スラグ剤添加量
が多いＮｏ．１２はスラグが塗装後剥離し、またＦｅＯ
／ＳｉＯ2 が１未満のＮｏ．１３は塗膜の未付着部が発
生して塗装不良となった。No. In No. 10, since the total amount of Nb, V and P was small, the adhesion between the slag and the base material was poor, and the slag was peeled off by the peeling test. Conversely, No. 11 is Nb, V, P
The slag became brittle because the total amount was too large, and the slag was peeled off by the peeling test in the same manner. Further, No. 1 with a large amount of slag agent added. In No. 12, the slag peeled off after coating, and FeO
/ SiO 2 is less than 1 No. In No. 13, a non-adhered portion of the coating film was generated, resulting in coating failure.
【００２４】[0024]
【発明の効果】本発明のメタル系フラックス入りワイヤ
によれば、溶接スラグ部の塗料の濡れ性が良好で、スラ
グと塗膜およびスラグと溶接ビードとの密着性が高く、
溶接のままで塗料による塗装仕上げが可能な溶接部が得
られるので、溶接作業の高能率化に大きく寄与するもの
である。According to the metal flux-cored wire of the present invention, the wettability of the coating material of the welding slag portion is good, and the adhesion between the slag and the coating film and the slag and the welding bead is high,
Since it is possible to obtain a welded portion which can be painted and finished with a paint as it is, it greatly contributes to high efficiency of welding work.
【図１】溶接後塗装部の剥離試験片の形状寸法を示す模
式図である。FIG. 1 is a schematic diagram showing the geometrical dimensions of a peel test piece of a coated portion after welding.
Claims (1)
スを充填して構成されるメタル系フラックス入りワイヤ
において、ワイヤ全体に対する質量百分率でＣ：０．２
０％以下、 Ｓｉ：０．１０〜０．６０％、 Ｍｎ：０．６０〜１．５０％、 Ｎｂ、ＶおよびＰの１種または２種以上：０．０５〜
０．３０％、 スラグ剤：１．０％以下、かつスラグ剤中のＦｅＯ、Ｓ
ｉＯ2 が質量比で （ＦｅＯ／ＳｉＯ2 ）≧１．０ であることを特徴とする塗装仕上げ鋼板用のガスシール
ドアーク溶接用フラックス入りワイヤ。1. A metal flux-cored wire constituted by filling a steel outer shell with a flux mainly composed of metal powder, wherein C: 0.2 as a mass percentage with respect to the entire wire.
0% or less, Si: 0.10 to 0.60%, Mn: 0.60 to 1.50%, one or more of Nb, V and P: 0.05 to
0.30%, slag agent: 1.0% or less, and FeO and S in the slag agent
A flux-cored wire for gas shield arc welding for a coated steel sheet, wherein iO 2 has a mass ratio of (FeO / SiO 2 ) ≧ 1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8159995A JPH08281475A (en) | 1995-04-06 | 1995-04-06 | Flux cored wire for gas shield arc welding for coating finished steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8159995A JPH08281475A (en) | 1995-04-06 | 1995-04-06 | Flux cored wire for gas shield arc welding for coating finished steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08281475A true JPH08281475A (en) | 1996-10-29 |
Family
ID=13750791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8159995A Pending JPH08281475A (en) | 1995-04-06 | 1995-04-06 | Flux cored wire for gas shield arc welding for coating finished steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08281475A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741816A (en) * | 2015-03-06 | 2015-07-01 | 西安理工大学 | Flux-cored welding wire for X120 pipeline steel welding and manufacturing method thereof |
| KR20170128603A (en) | 2015-04-28 | 2017-11-22 | 가부시키가이샤 고베 세이코쇼 | Flux cored wire and welding method for gas shield arc welding |
| KR20210107596A (en) * | 2020-01-16 | 2021-09-01 | 현대종합금속 주식회사 | Extra low silicon welding consumable having excellent porosity resistance and electro coating, and weld metal |
-
1995
- 1995-04-06 JP JP8159995A patent/JPH08281475A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741816A (en) * | 2015-03-06 | 2015-07-01 | 西安理工大学 | Flux-cored welding wire for X120 pipeline steel welding and manufacturing method thereof |
| KR20170128603A (en) | 2015-04-28 | 2017-11-22 | 가부시키가이샤 고베 세이코쇼 | Flux cored wire and welding method for gas shield arc welding |
| US10702955B2 (en) | 2015-04-28 | 2020-07-07 | Kobe Steel, Ltd. | Flux-cored wire for gas-shielded arc welding and welding method |
| KR20210107596A (en) * | 2020-01-16 | 2021-09-01 | 현대종합금속 주식회사 | Extra low silicon welding consumable having excellent porosity resistance and electro coating, and weld metal |
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