JPH07100692A - Stainless steel flux cored wire - Google Patents
Stainless steel flux cored wireInfo
- Publication number
- JPH07100692A JPH07100692A JP26795493A JP26795493A JPH07100692A JP H07100692 A JPH07100692 A JP H07100692A JP 26795493 A JP26795493 A JP 26795493A JP 26795493 A JP26795493 A JP 26795493A JP H07100692 A JPH07100692 A JP H07100692A
- Authority
- JP
- Japan
- Prior art keywords
- flux
- stainless steel
- cored wire
- fluoride
- carbonate
- 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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- Nonmetallic Welding Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はスパッタが少なく、スラ
グの被包性や剥離性等の溶接作業性が良好で、かつ耐気
孔性及び延性、靭性の優れたステンレス鋼フラックス入
りワイヤに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stainless steel flux-cored wire which has a small amount of spatter, has good welding workability such as slag encapsulation and peelability, and has excellent porosity resistance, ductility and toughness.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】フラッ
クス入りワイヤによるガスシールドアーク溶接は、被覆
アーク溶接棒やＴＩＧ溶接に比べて高能率であることか
ら、近年適用範囲が拡大されてきており、ステンレス鋼
の溶接において高品質なフラックス入りワイヤの開発要
求が高くなってきている。2. Description of the Related Art Gas shielded arc welding using flux-cored wire has a high efficiency as compared with covered arc welding rods and TIG welding, and thus its application range has been expanded in recent years. There is an increasing demand for the development of high-quality flux-cored wires for welding stainless steel.
【０００３】従来、この種のステンレス鋼溶接用フラッ
クス入りワイヤとして、特公平１−５９０７９号、特開
昭５９−２１２１９２号、特開昭５８−７７７９３号、
特開昭５２−２６４９７号等で提案されているが、いず
れもＴiＯ2系が主体であり、耐気孔性、延性、靭性が十
分ではない。Conventionally, as a flux-cored wire for welding stainless steel of this kind, Japanese Examined Patent Publication No. 1-59079, JP-A-59-212192, JP-A-58-77793,
Although proposed in JP-A-52-26497 and the like, all of them are mainly composed of TiO 2 and have insufficient porosity resistance, ductility and toughness.
【０００４】一般にステンレス鋼は高温から極低温まで
の広い温度範囲で使用され、特に高温では延性が、低温
では靭性が要求される。このような仕様の場合、従来の
フラックス入りワイヤでは十分要求に応えられていなか
った。Generally, stainless steel is used in a wide temperature range from high temperature to extremely low temperature, and ductility is required especially at high temperature and toughness is required at low temperature. In the case of such specifications, the conventional flux-cored wire has not sufficiently met the requirements.
【０００５】本発明の目的は、上記従来技術の欠点を解
消して、スパッタが少なく、スラグの被包性や剥離性等
の溶接作業性が良好で、特に耐気孔性に優れ、かつ延
性、靭性が良好なステンレス鋼フラックス入りワイヤを
提供することにある。The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to reduce spatter, to improve welding workability such as slag encapsulation and peelability, and particularly to improve porosity resistance and ductility. It is to provide a stainless steel flux-cored wire having good toughness.
【０００６】[0006]
【課題を解決するための手段】本発明者は、前記課題を
解決するために鋭意研究を重ねた結果、ステンレス鋼を
外皮とするフラックス入りワイヤで、内包するフラック
スはＴiＯ2を抑えて炭酸塩と弗化物を主体とすることに
より、耐気孔性、延性、靭性を向上させることができる
こと、またＹ或いは希土類元素を添加することにより、
逆に従来スラグの剥離性改良のために添加していたＢ
i、Ｐb、Ｓe等の低融点化合物形成元素を積極的に排除
することにより、延性、靭性、耐割れ性を更に向上させ
ることができることを知見して、ここに本発明を完成し
たものである。As a result of intensive studies for solving the above-mentioned problems, the present inventor has found that a flux-cored wire having a stainless steel outer shell, and the flux to be encapsulated is carbonate which suppresses TiO 2. By mainly using the above-mentioned compounds and fluoride, it is possible to improve the pore resistance, ductility and toughness, and by adding Y or a rare earth element,
On the contrary, B which was conventionally added to improve the peelability of slag
The inventors have found that it is possible to further improve ductility, toughness, and crack resistance by positively excluding low melting point compound forming elements such as i, Pb, and Se, and the present invention has been completed here. .
【０００７】すなわち、本発明は、Ｃrを１１％以上含
有するステンレス鋼を外皮とするフラックス入りワイヤ
において、内包するフラックスのフラックス率がワイヤ
全重量に対して１０〜３０％であり、フラックス成分と
して、ワイヤ全重量に対して、炭酸塩を０.３〜８％、
弗化物を０.５〜５％、ＴiＯ2を０.１〜４％含み、更に
ＳiＯ2、Ａl2Ｏ3、ＺrＯ2、ＭgＯ及びＣaＯからなるス
ラク形成剤の１種又は２種以上を０.１〜５％と、金属
粉末を１〜２７％を含み、かつ、ＴiＯ2／(炭酸塩＋弗
化物)比が０.０５〜１.４であることを特徴とするステ
ンレス鋼フラックス入りワイヤを要旨としている。That is, according to the present invention, in a flux-cored wire having a stainless steel shell containing 11% or more of Cr, the flux rate of the contained flux is 10 to 30% with respect to the total weight of the wire, and the flux component is , Carbonate to 0.3-8% of the total weight of the wire,
It contains 0.5 to 5% of fluoride and 0.1 to 4% of TiO 2 , and further contains one or more slack-forming agents consisting of SiO 2 , Al 2 O 3 , ZrO 2 , MgO and CaO. 1 to 5% and 1 to 27% of metal powder, and a TiO 2 / (carbonate + fluoride) ratio of 0.05 to 1.4, a stainless steel flux cored wire Is the gist.
【０００８】また、他の本発明は、上記フラックス入り
ワイヤにおいて、フラックス成分として、更にＹ及び希
土類元素の金属単体又は化合物の１種又は２種以上を合
計で金属単体に換算した量にて０.０１〜１％含むこと
を特徴とし、或いは、フラックス成分として、単体又は
化合物の形でのＢi、Ｐb、Ｓeを積極的に含まないこと
を特徴としている。According to another aspect of the present invention, in the above-described flux-cored wire, as a flux component, one or two or more metal simple substances or compounds of Y and rare earth elements are added in an amount calculated as a total metal simple substance. It is characterized in that it contains 0.01 to 1% or does not positively contain Bi, Pb, or Se in the form of a simple substance or a compound as a flux component.
【０００９】[0009]
【作用】以下に本発明における外皮、フラックス成分等
の下丁理由について述べる。The following will explain the reasons for using the outer skin, flux components and the like in the present invention.
【００１０】（１）外皮 外皮にステンレス鋼を使用するのは、溶接金属の均一性
を損なわないためとフラックスが充填過剰にならないよ
うにフラックス中からの合金添加量を抑えるためであ
る。このためには、ステンレス鋼として、Ｃrを１１％
以上含有したステンレス鋼を使用する必要がある。この
ようなステンレス鋼としてはＪＩＳ Ｇ ４３０６に記載
のＳＵＳ４１０Ｌ、４３０ＬＸ、３０４Ｌ、３１６Ｌ等
が挙げられる。(1) Outer skin Stainless steel is used for the outer skin in order not to impair the uniformity of the weld metal and to suppress the amount of alloy added from the flux so as not to overfill the flux. For this purpose, as stainless steel, Cr is 11%
It is necessary to use the stainless steel containing the above. Examples of such stainless steel include SUS410L, 430LX, 304L, 316L described in JIS G 4306.
【００１１】（２）フラックス率 フラックス率(ワイヤ全重量に対する割合)は、ワイヤ製
造工程において安定した充填率を確保し、かつ溶接時に
十分なスラグ被包性を確保し健全な溶接金属を得るため
に１０％以上が必要である。しかし、３０％超ではアー
クの集中力低下による溶接作業性の悪化、特にスラグ巻
き込み等の溶接欠陥を生じやすくなるので、フラックス
率は１０〜３０％の範囲とする。(2) Flux rate The flux rate (ratio to the total weight of the wire) is to ensure a stable filling rate in the wire manufacturing process and to secure sufficient slag encapsulation during welding to obtain a sound weld metal. 10% or more is required. However, if it exceeds 30%, the welding workability is deteriorated due to a decrease in the concentration of the arc, and in particular, welding defects such as slag entrainment are likely to occur, so the flux rate is set to the range of 10 to 30%.
【００１２】 （３）フラックス成分及び添加量(対ワイヤ全重量)(3) Flux component and addition amount (relative to total weight of wire)
【００１３】炭酸塩：炭酸塩を０.３％以上添加するの
は、スラぐの溶融池への被りすぎを防止し、かつ溶融熱
により分解した炭酸ガスがアークの水蒸気分圧を下げて
ブローホール等の欠陥発生を防止するためである。しか
し、８％超ではスパッタが多発するので好ましくない。
したがって、炭酸塩の添加量は０.３〜８％とする。な
お、炭酸塩としては、ＣaＣＯ3、ＬiＣＯ3、ＢaＣＯ3、
ＭgＣＯ3、ＳrＣＯ3、ＭnＣＯ3、Ｎa2ＣＯ3等が挙げら
れる。Carbonate: Addition of 0.3% or more of carbonate prevents the slag from being over-covered in the molten pool, and the carbon dioxide gas decomposed by the heat of fusion lowers the partial pressure of steam in the arc and blows it. This is to prevent the occurrence of defects such as holes. However, if it exceeds 8%, spatter frequently occurs, which is not preferable.
Therefore, the amount of carbonate added should be 0.3-8%. The carbonates include CaCO 3 , LiCO 3 , BaCO 3 ,
MgCO 3 , SrCO 3 , MnCO 3 , Na 2 CO 3 and the like can be mentioned.
【００１４】弗化物：弗化物を０.５％以上添加するの
は、スラグの粘性を低下させて溶接金属へのスラグの被
りを均一にし、かつブローホール等の欠陥を防止するた
めである。しかし、５％超ではスパッタが多発するので
好ましくない。したがって、弗化物の添加量は０.５〜
５％とする。なお、弗化物としては、ＣaＦ2、ＢaＦ2、
ＮaＦ、ＬiＦ、ＣeＦ3、ＹＦ、Ｋ2ＳiＦ6、Ｎa3ＡlＦ6
等が挙げられる。Fluoride: The reason for adding 0.5% or more of fluoride is to reduce the viscosity of the slag so that the slag can be uniformly covered with the weld metal and to prevent defects such as blowholes. However, if it exceeds 5%, spatter frequently occurs, which is not preferable. Therefore, the addition amount of fluoride is 0.5
5%. As the fluoride, CaF 2 , BaF 2 ,
NaF, LiF, CeF 3 , YF, K 2 SiF 6 , Na 3 AlF 6
Etc.
【００１５】ＴiＯ2：ＴiＯ2が多いと耐気孔性、延性、
靭性の点で望ましくない。しかしながら、アークを安定
させ溶融池の母材へのなじみを良くして健全な溶接金属
を得るために少なくとも０.１％は必要であるが、４％
を超えるとスラグが溶接金属に密着し(焼き付という)剥
離が困難となるため、これを上限とする。なお、ＴiＯ2
源としては、ルチール、白チタン、チタン酸カリ、チタ
ン酸ソーダ、チタン酸カルシウム、チタン酸バリウム等
がある。TiO 2 : When the content of TiO 2 is large, porosity resistance, ductility,
Not desirable in terms of toughness. However, at least 0.1% is necessary to stabilize the arc and improve the fit-in to the base metal of the molten pool to obtain a sound weld metal.
If it exceeds, the slag will adhere to the weld metal and peeling (called seizure) will be difficult, so this is the upper limit. In addition, TiO 2
Sources include rutile, white titanium, potassium titanate, sodium titanate, calcium titanate, barium titanate and the like.
【００１６】ＳiＯ2、Ａl2Ｏ3、ＺrＯ2、ＭgＯ、Ｃa
Ｏ：ＳiＯ2、Ａl2Ｏ3、ＺrＯ2、ＭgＯ、ＣaＯはスラグ
を形成して溶接金属の表面性状を良好ならしめるために
１種又は２種以上を添加するが、０.１％未満ではその
効果がなく、また５％を超えるとアークが不安定になり
スパッタが多発するので、これらの添加量は１種又は２
種以上の合計で０.１〜５％の範囲とする。ＳiＯ2、Ａl
2Ｏ3、ＺrＯ2、ＭgＯ、ＣaＯ源としては、硅砂、マイ
カ、カリ長石、アルミナ、ジルコンサンド、マグネシア
クリンカ、硅灰石、チタン酸カルシウム等がある。SiO 2 , Al 2 O 3 , ZrO 2 , MgO, Ca
O: SiO 2, Al 2 O 3, ZrO 2, MgO, CaO is added one or more in order to makes it good surface properties of the weld metal to form slag, is less than 0.1% There is no such effect, and if it exceeds 5%, the arc becomes unstable and spatter frequently occurs.
The total amount of seeds is 0.1 to 5%. SiO 2 , Al
Sources of 2 O 3 , ZrO 2 , MgO, and CaO include silica sand, mica, potassium feldspar, alumina, zircon sand, magnesia clinker, silica stone, calcium titanate, and the like.
【００１７】金属粉末：きんぞく粉末は酸化消耗分を補
充し、かつ所定の溶接金属の化学成分を確保するため、
或いは脱酸剤として溶接金属の清浄度を上げて、延性、
靭性を確保するために添加する。しかし、１％未満では
酸化消耗分を十分補充できず、また延性、靭性も確保で
きなく、また２７％を超えると十分なスラグ量を確保で
きずスラグ被包性や剥離性等の溶接作業性が悪化する。
したがって、金属粉末の添加量は１〜２７％の範囲とす
る。なお、金属粉末としては、Ｎi、Ｃr、Ｆe、Ｍo、Ｎ
b、Ｗ、Ｍn、Ｓi、Ｔi、Ａl、Ｍg、Ｚr等の単体やこれ
らの合金が挙げられる。Metal powder: Kinzoku powder is used to replenish the oxidative consumption and to secure the predetermined chemical composition of the weld metal.
Alternatively, as a deoxidizer, the cleanliness of the weld metal is increased to improve ductility,
Add to ensure toughness. However, if it is less than 1%, it is not possible to sufficiently supplement the oxidative consumption, and it is not possible to secure ductility and toughness, and if it exceeds 27%, it is not possible to secure a sufficient amount of slag and welding workability such as slag encapsulation and peelability. Becomes worse.
Therefore, the addition amount of the metal powder is in the range of 1 to 27%. In addition, as the metal powder, Ni, Cr, Fe, Mo, N
Examples include simple substances such as b, W, Mn, Si, Ti, Al, Mg and Zr, and alloys thereof.
【００１８】ＴiＯ2／(炭酸塩＋弗化物)の比：ＴiＯ2は
溶接金属の粘性を変化させる成分で気孔発生に大きく影
響し、炭酸塩や弗化物は気孔発生防止に有効な成分であ
る。本発明者は、ステンレス鋼フラックス入りワイヤに
おいてはＴiＯ2／(炭酸塩＋弗化物)の比と気孔発生とは
密接な関係にあることを見い出した(図１)。Ratio of TiO 2 / (carbonate + fluoride): TiO 2 is a component that changes the viscosity of the weld metal and has a great influence on the generation of pores, and carbonate and fluoride are effective components for preventing the generation of pores. . The present inventor has found that in a stainless steel flux-cored wire, the ratio of TiO 2 / (carbonate + fluoride) is closely related to the generation of pores (FIG. 1).
【００１９】すなわち、この比が０.０５未満ではアー
クが不安定となり、逆に１.４を超えるとブローホー
ル、ピットが急増する。このため、上述のＴiＯ2、炭酸
塩、弗化物の添加量の範囲内でＴiＯ2／(炭酸塩＋弗化
物)の比を０.０５〜１.４の範囲に規制することが重要
である。より好ましくは０.０５〜０.９の範囲が望まし
い。That is, when this ratio is less than 0.05, the arc becomes unstable, and when it exceeds 1.4, blow holes and pits increase sharply. Therefore, it is important to regulate the ratio of TiO 2 / (carbonate + fluoride) within the range of 0.05 to 1.4 within the above-mentioned range of addition amount of TiO 2 , carbonate and fluoride. . The range of 0.05 to 0.9 is more preferable.
【００２０】Ｙ、希土類元素：Ｙ及び希土類元素は溶接
割れに有害な酸素、硫黄と結合して無害化し耐割れ性を
向上させる作用があるので、必要に応じて、これらの元
素の金属単体又は化合物の１種又は２種以上を合計で金
属単体に換算した量にて０.０１〜１％を添加すること
ができる。０.０１％未満では溶接割れに対する効果が
なく、逆に１％を超えるとアークが不安定となりスパッ
タが増える。Y, rare earth element: Y and the rare earth element have the action of binding oxygen and sulfur, which are harmful to welding cracks, to make them harmless and improve crack resistance. 0.01 to 1% can be added in an amount of one or two or more compounds converted into a metal simple substance in total. If it is less than 0.01%, there is no effect on welding cracks, while if it exceeds 1%, the arc becomes unstable and spatter increases.
【００２１】Ｂi、Ｐb、Ｓe：Ｂi、Ｐb、Ｓeは低融点化
合物を形成して粒界強度を低下させるため、高温延性や
低温靭性が低下するが、ＴiＯ2の高い従来のステンレス
鋼フラックス入りワイヤではスラグの焼き付き防止のた
め、止むなく添加していた。しかし、本発明ワイヤでは
これらの成分を添加することなく良好なスラグ剥離性を
得ることができるので、これらの単体及び化合物を積極
的に添加しないものとする。Bi, Pb, Se: Bi, Pb, Se form a low melting point compound to lower the grain boundary strength, so that the high temperature ductility and the low temperature toughness are lowered, but the conventional stainless steel flux containing high TiO 2 is included. In order to prevent seizure of the slag, the wire was constantly added. However, in the wire of the present invention, good slag releasability can be obtained without adding these components. Therefore, these simple substances and compounds are not positively added.
【００２２】なお、フラックスを内包させる際に加熱等
により水分を少なくするのが望ましく、水分量をワイヤ
全重量に対し４００ppm以下に積極的に調整するのが望
ましい。水分をこのように少なくすると、ピット、ブロ
ーホール等の気孔防止に効果的である。When the flux is included, it is desirable to reduce the water content by heating or the like, and it is desirable to positively adjust the water content to 400 ppm or less based on the total weight of the wire. Such reduction of water content is effective in preventing pores such as pits and blow holes.
【００２３】本発明のステンレス鋼フラックス入りワイ
ヤは、ステンレス鋼の共金溶接用として適用できるほ
か、炭素鋼とステンレス鋼等の異材溶接にも適用でき
る。The stainless steel flux cored wire of the present invention can be applied not only for co-welding of stainless steel, but also for welding dissimilar materials such as carbon steel and stainless steel.
【００２４】次に本発明の実施例を示す。Next, examples of the present invention will be described.
【００２５】表１に示す成分組成のステンレス鋼からな
るフープ(０.４mm厚×９mm幅)に表２に示す成分組成の
フラックスを内包し、１.２mmφに仕上げ伸線した後、
通電加熱にて水分をワイヤ全重量に対して４００ppm以
下となるようにコントロールして試作ワイヤを製作し
た。なお、表３〜表６は表２に示したフラックス成分の
内訳である。A hoop made of stainless steel having the composition shown in Table 1 (0.4 mm thickness × 9 mm width) was encapsulated with a flux having the composition shown in Table 2 and finish-drawn to 1.2 mmφ.
A prototype wire was manufactured by controlling the water content to 400 ppm or less with respect to the total weight of the wire by electric heating. Note that Tables 3 to 6 are breakdowns of the flux components shown in Table 2.
【００２６】溶接作業性試験は、図２に示すように９mm
厚×５０mm幅×３５０mm長のＳＵＳ３０４を用いて水平
すみ肉溶接を行った。溶接条件は、電流２００Ａ、電圧
３０Ｖで、シールドガスにＡr−２０％ＣＯ2を用い、流
量２５リットル／minとした。ピットは水平すみ肉溶接
ビード表面について発生個数を測定し、ブローホールは
図３に示すようにビードを開口した断面について発生個
数を測定した。水分の測定はカールフィッシャー法(キ
ャリアーガス：Ｏ2、加熱温度：７５０℃)により行っ
た。The welding workability test was conducted as shown in FIG.
Horizontal fillet welding was performed using SUS304 having a thickness of 50 mm and a width of 350 mm. The welding conditions were a current of 200 A, a voltage of 30 V, Ar-20% CO 2 as a shield gas, and a flow rate of 25 liter / min. The number of generated pits was measured on the surface of the horizontal fillet weld bead, and the number of generated blow holes was measured on the cross section where the bead was opened as shown in FIG. The water content was measured by the Karl Fischer method (carrier gas: O 2 , heating temperature: 750 ° C.).
【００２７】これらの試験結果を表７に示す。表７より
明らかなように、本発明例のＮo.１〜Ｎo.１５はいずれ
も良好な作業性を有している。The results of these tests are shown in Table 7. As is clear from Table 7, No. 1 to No. 15 of the present invention have good workability.
【００２８】これに対し、比較例のうち、Ｎo.１６は炭
酸塩が少なすぎてスラグが被りすぎ、スラグの被包性が
劣っている。逆にＮo.１７は過剰で、アークが不安定と
なりスパッタが多発した。On the other hand, in Comparative Example No. 16, the amount of carbonate was too small and the slag was overcoated, and the slag encapsulation was poor. On the contrary, No. 17 was excessive, the arc became unstable, and spatter frequently occurred.
【００２９】Ｎo.１８は弗化物が少なすぎてスラグの被
包性が劣り、逆にＮo.１９は過剰で、スパッタが多発し
た。No. 18 was too low in fluoride and the encapsulation property of the slag was inferior. On the contrary, No. 19 was excessive and spattering occurred frequently.
【００３０】Ｎo.２０はＴiＯ2が少なすぎ、またＴiＯ2
／(炭酸塩＋弗化物)の比が低すぎてアークが不安定とな
り、逆にＮo.２１は過剰で、スラグが焼き付いて剥離性
が劣っている。[0030] No.20 is too small, TiO 2, also TiO 2
The ratio of / (carbonate + fluoride) is too low and the arc becomes unstable. On the other hand, No. 21 is excessive and the slag is seized and the peelability is poor.
【００３１】Ｎo.２２はスラグ形成剤が少なすぎてビー
ド形状が劣り、逆にＮo.２３は過剰で、アークが不安定
となりスパッタが多発した。In No. 22, the bead shape was inferior because the slag forming agent was too small, and in contrast, No. 23 was excessive, the arc became unstable, and spatter frequently occurred.
【００３２】Ｎo.２４はＴiＯ2／(炭酸塩＋弗化物)の比
が高すぎてブローホール、ピットが多発した。Ｎo.２５
はフラックス率が高すぎてアークが不安定となり、逆に
Ｎo.２６は低すぎ、アークが不安定でスラグの被包性が
劣っている。In No. 24, the ratio of TiO 2 / (carbonate + fluoride) was too high and many blowholes and pits occurred. No.25
The flux ratio is too high and the arc becomes unstable, while the No. 26 is too low and the arc is unstable and the slag encapsulation is poor.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【表２】 [Table 2]
【００３５】[0035]
【表３】 [Table 3]
【００３６】[0036]
【表４】 [Table 4]
【００３７】[0037]
【表５】 [Table 5]
【００３８】[0038]
【表６】 [Table 6]
【００３９】[0039]
【表７】 [Table 7]
【００４０】[0040]
【発明の効果】以上詳述したように、本発明によれば、
スパッタが少なく、スラグの被包性や剥離性等の溶接作
業性が良好で、特に耐気孔性に優れ、かつ延性、靭性が
良好なステンレス鋼フラックス入りワイヤを提供するこ
とができる。As described in detail above, according to the present invention,
It is possible to provide a stainless steel flux-cored wire which has a small amount of spatter, has good welding workability such as slag encapsulation and peelability, and has particularly excellent porosity resistance, ductility, and toughness.
【図１】ＴiＯ2／(炭酸塩＋弗化物)の比と欠陥発生の関
係を示す図である。FIG. 1 is a diagram showing the relationship between the ratio of TiO 2 / (carbonate + fluoride) and the occurrence of defects.
【図２】すみ肉溶接試験方法を説明する図である。FIG. 2 is a diagram illustrating a fillet welding test method.
【図３】ブローホールの測定要領を示す説明図である。FIG. 3 is an explanatory diagram showing a procedure for measuring blowholes.
Claims (3)
を外皮とするフラックス入りワイヤにおいて、内包する
フラックスのフラックス率がワイヤ全重量に対して１０
〜３０％であり、フラックス成分として、ワイヤ全重量
に対して、炭酸塩を０.３〜８％、弗化物を０.５〜５
％、ＴiＯ2を０.１〜４％含み、更にＳiＯ2、Ａl2Ｏ3、
ＺrＯ2、ＭgＯ及びＣaＯからなるスラグ形成剤の１種又
は２種以上を０.１〜５％と、金属粉末を１〜２７％を
含み、かつ、ＴiＯ2／(炭酸塩＋弗化物)比が０.０５〜
１.４であることを特徴とするステンレス鋼フラックス
入りワイヤ。1. In a flux-cored wire having a stainless steel outer shell containing 11% or more of Cr, the flux rate of the contained flux is 10 relative to the total weight of the wire.
-30%, 0.3 to 8% carbonate and 0.5 to 5 fluoride as the flux component, based on the total weight of the wire.
%, Containing 0.1 to 4% of TiO 2 , further SiO 2 , Al 2 O 3 ,
It contains 0.1 to 5% of one or more slag-forming agents consisting of ZrO 2 , MgO and CaO, and 1 to 27% of metal powder, and has a TiO 2 / (carbonate + fluoride) ratio. Is 0.05
A stainless steel flux-cored wire characterized by being 1.4.
類元素の金属単体又は化合物の１種又は２種以上を合計
で金属単体に換算した量にて０.０１〜１％含むことを
特徴とする請求項１に記載のステンレス鋼フラックス入
りワイヤ。2. The flux component further contains 0.01 to 1% of a total amount of one or more metal elements or compounds of Y and rare earth elements converted to the metal element in total. Item 2. The stainless steel flux-cored wire according to Item 1.
の形でのＢi、Ｐb、Ｓeを積極的に含まないことを特徴
とする請求項１又は２に記載のステンレス鋼フラックス
入りワイヤ。3. The stainless steel flux-cored wire according to claim 1, wherein Bi, Pb, and Se in the form of a simple substance or a compound are not positively contained as a flux component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5267954A JP2711061B2 (en) | 1993-09-30 | 1993-09-30 | Stainless steel flux cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5267954A JP2711061B2 (en) | 1993-09-30 | 1993-09-30 | Stainless steel flux cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100692A true JPH07100692A (en) | 1995-04-18 |
| JP2711061B2 JP2711061B2 (en) | 1998-02-10 |
Family
ID=17451908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5267954A Expired - Fee Related JP2711061B2 (en) | 1993-09-30 | 1993-09-30 | Stainless steel flux cored wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2711061B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042787A (en) * | 1998-07-28 | 2000-02-15 | Kobe Steel Ltd | Flux cored wire for gas shield arc welding |
| JP2011020154A (en) * | 2009-07-16 | 2011-02-03 | Nippon Steel Corp | Flux-cored wire for gas shielded welding |
| JP2017013118A (en) * | 2015-07-06 | 2017-01-19 | 新日鐵住金ステンレス株式会社 | Flux-cored wire for stainless steel welding, stainless steel welded joint, and method for manufacturing the same |
| CN115740839A (en) * | 2022-10-17 | 2023-03-07 | 北京金威焊材有限公司 | Low-nickel nitrogen-containing austenitic stainless steel TGF welding wire and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938857A (en) * | 1972-08-08 | 1974-04-11 | ||
| JPS54134048A (en) * | 1978-04-10 | 1979-10-18 | Nippon Steel Corp | Composite wire for automatic welding |
| JPS58135793A (en) * | 1982-02-05 | 1983-08-12 | Nippon Oil & Fats Co Ltd | Flux cored wire for submerged arc welding |
| JPS58151993A (en) * | 1981-10-16 | 1983-09-09 | Nippon Oil & Fats Co Ltd | Flux cored wire |
-
1993
- 1993-09-30 JP JP5267954A patent/JP2711061B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938857A (en) * | 1972-08-08 | 1974-04-11 | ||
| JPS54134048A (en) * | 1978-04-10 | 1979-10-18 | Nippon Steel Corp | Composite wire for automatic welding |
| JPS58151993A (en) * | 1981-10-16 | 1983-09-09 | Nippon Oil & Fats Co Ltd | Flux cored wire |
| JPS58135793A (en) * | 1982-02-05 | 1983-08-12 | Nippon Oil & Fats Co Ltd | Flux cored wire for submerged arc welding |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042787A (en) * | 1998-07-28 | 2000-02-15 | Kobe Steel Ltd | Flux cored wire for gas shield arc welding |
| JP2011020154A (en) * | 2009-07-16 | 2011-02-03 | Nippon Steel Corp | Flux-cored wire for gas shielded welding |
| JP2017013118A (en) * | 2015-07-06 | 2017-01-19 | 新日鐵住金ステンレス株式会社 | Flux-cored wire for stainless steel welding, stainless steel welded joint, and method for manufacturing the same |
| CN115740839A (en) * | 2022-10-17 | 2023-03-07 | 北京金威焊材有限公司 | Low-nickel nitrogen-containing austenitic stainless steel TGF welding wire and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2711061B2 (en) | 1998-02-10 |
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