JPH11254182A - Flux cored wire for stainless steel welding and its production - Google Patents
Flux cored wire for stainless steel welding and its productionInfo
- Publication number
- JPH11254182A JPH11254182A JP6596498A JP6596498A JPH11254182A JP H11254182 A JPH11254182 A JP H11254182A JP 6596498 A JP6596498 A JP 6596498A JP 6596498 A JP6596498 A JP 6596498A JP H11254182 A JPH11254182 A JP H11254182A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- stainless steel
- welding
- polytetrafluoroethylene
- flux
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ワイヤ径０．８〜
１．６ｍｍのステンレス鋼溶接用フラックス入りワイヤ
に係り、さらに詳しくは、溶接時にワイヤ送給性が優れ
たステンレス鋼溶接用フラックス入りワイヤおよびその
製造方法に関する。TECHNICAL FIELD The present invention relates to a wire having a wire diameter of 0.8 to 0.8 mm.
The present invention relates to a 1.6 mm stainless steel welding flux cored wire, and more particularly to a stainless steel welding flux cored wire having excellent wire feedability during welding and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】ステンレス鋼溶接用フラックス入りワイ
ヤは、溶接の自動化、高能率化が進むとともに、さらに
多く使われる傾向にあるが、対象となる構造物によって
は溶接が狭隘部で行われる場合が多く、溶接機のワイヤ
供給装置の送給ローラから溶接トーチまでのコンジット
ケーブルは曲げて使いやすくするため、軟らかく、かつ
長くなる傾向にある。2. Description of the Related Art Flux-cored wires for welding stainless steel are being used more and more as automation and efficiency of welding are advanced. However, depending on the target structure, welding may be performed in narrow areas. In many cases, a conduit cable from a feed roller of a wire feeder of a welding machine to a welding torch tends to be soft and long because it is easy to use by bending.
【０００３】このように長くて曲げやすいコンジットケ
ーブルが使用されると、ワイヤ送給時そのコンジットケ
ーブル内のコンジットチューブ内をワイヤが通る時に摩
擦抵抗が大きくなり、また、ワイヤ送給ローラ部でワイ
ヤがスリップして溶接時のワイヤ送給に支障をきたし、
アークが不安定となって溶接ができなくなるという問題
が生じる。このため、これまでにステンレス鋼溶接用フ
ラックス入りワイヤには、ワイヤ送給性を良くするため
に、種々の対策が施されているが未だ十分なものはな
い。When such a long and flexible conduit cable is used, the frictional resistance increases when the wire passes through a conduit tube in the conduit cable during wire feeding, and the wire feeding roller portion generates the wire. Slips and interferes with wire feeding during welding,
There is a problem that the arc becomes unstable and welding cannot be performed. For this reason, flux cored wires for stainless steel welding have hitherto been subjected to various measures to improve the wire feedability, but none are sufficient.
【０００４】ワイヤの送給性の問題に関しては、従来炭
素鋼用のアーク溶接用ワイヤにおいて、ワイヤ表面に植
物油、動物油および鉱物油あるいはそれらの混合油を塗
布する。また、特開昭５５−４００６８号公報に高級脂
肪酸と高級一価アルコールからなるエステルおよび前記
エステルとＭｏＳ2 、グラファイトなどを混合した潤滑
剤を塗布したアーク溶接用ワイヤ、あるいは特公昭６３
−１５０７３号公報にグラファイト、二硫化モリブデ
ン、ガラス粉末などの固形潤滑剤を混合したものをワイ
ヤ表面に塗布したアーク溶接用フラックス入りワイヤな
どが提案されている。[0004] Regarding the problem of wire feedability, in the case of conventional arc welding wires for carbon steel, vegetable oils, animal oils, mineral oils, or mixed oils thereof are applied to the surface of the wires. JP-A-55-40068 discloses an arc welding wire coated with an ester comprising a higher fatty acid and a higher monohydric alcohol and a lubricant obtained by mixing the ester with MoS 2 , graphite, or the like.
JP-A-15073 proposes a flux-cored wire for arc welding in which a mixture of a solid lubricant such as graphite, molybdenum disulfide, and glass powder is applied to the wire surface.
【０００５】しかしながら、これらの炭素鋼用のアーク
溶接用ワイヤにおいても前述した軟質で長尺のコンジッ
トケーブルを使用し、該コンジットケーブルを曲げて溶
接する場合、送給ローラ部でワイヤがスリップしたりコ
ンジットチューブ内での摩擦抵抗が大きくなってワイヤ
送給性は十分ではなく、ましてやステンレス鋼溶接用フ
ラックス入りワイヤにおいては、ワイヤ外皮が硬いので
屈曲したコンジットチューブ内ではワイヤとコンジット
チューブの摩擦抵抗が大きくなって、さらにワイヤ送給
性は不良となり、溶接ができなくなる。However, when the above-mentioned soft and long conduit cable is used in the arc welding wire for carbon steel and the conduit cable is bent and welded, the wire may slip at the feed roller portion. The frictional resistance in the conduit tube increases and the wire feedability is not sufficient.Moreover, in the case of a flux cored wire for stainless steel welding, the frictional resistance between the wire and the conduit tube is increased in a bent conduit tube due to the hard outer sheath of the wire. As a result, the wire feedability becomes poor and welding becomes impossible.
【０００６】ステンレス鋼溶接用フラックス入りワイヤ
については、特開平５−２８７２９３号公報に脂肪酸と
高級アルコールからなるエステルとナトリウム石鹸を含
有した潤滑剤で伸線し、伸線性とワイヤ送給性を改善す
ることが提案されている。しかし、該提案においても前
述の長尺なコンジットケーブルを曲げて溶接する場合は
十分なワイヤ送給性は得られない。A flux-cored wire for welding stainless steel is disclosed in Japanese Patent Application Laid-Open No. Hei 5-287293, which is drawn with a lubricant containing an ester composed of a fatty acid and a higher alcohol and sodium soap to improve the drawability and wire feedability. It has been proposed to. However, even in this proposal, when the above-mentioned long conduit cable is bent and welded, sufficient wire feedability cannot be obtained.
【０００７】[0007]
【発明が解決しようとする課題】そこで、本発明は、軟
質で長尺のコンジットケーブルを使用し、かつ、曲げて
溶接される場合においても、ワイヤ送給ローラ部でのス
リップやコンジットチューブ内での摩擦抵抗が少ないワ
イヤ送給性の良好なステンレス鋼溶接用フラックス入り
ワイヤを提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of using a flexible and long conduit cable, and even in a case where the conduit cable is bent and welded, a slip at a wire feed roller portion or a conduit tube. It is an object of the present invention to provide a flux-cored wire for stainless steel welding having a low frictional resistance and good wire feedability.
【０００８】[0008]
【課題を解決するための手段】本発明の要旨は、 （１）ステンレス鋼製外皮内にフラックスを充填してな
るワイヤ径０．８〜１．６ｍｍのステンレス鋼溶接用フ
ラックス入りワイヤの表面にワイヤ１０ｋｇ当たりポリ
四弗化エチレンを０．２〜１．５ｇ、液体潤滑剤を０．
０５〜０．５ｇ有することを特徴とする。 （２）ステンレス鋼製外皮内にフラックスを充填してな
るステンレス鋼溶接用フラックス入りワイヤの製造方法
において、ワイヤ表面にポリ四弗化エチレンを塗布した
後に仕上げ伸線して液体潤滑剤を塗布することを特徴と
する。SUMMARY OF THE INVENTION The gist of the present invention is as follows: (1) The surface of a flux-cored wire for welding stainless steel having a wire diameter of 0.8 to 1.6 mm, obtained by filling a flux in a stainless steel sheath. 0.2 to 1.5 g of polytetrafluoroethylene and 0.1 g of liquid lubricant per 10 kg of wire.
0.5 to 0.5 g. (2) In a method for manufacturing a flux-cored wire for stainless steel welding in which a flux is filled in a stainless steel outer cover, a polytetrafluoroethylene is applied to the surface of the wire, and then a finish lubricant is drawn and a liquid lubricant is applied. It is characterized by the following.
【０００９】（３）ワイヤ表面に塗布するポリ四弗化エ
チレンは、水またはアルコールまたはエーテルに懸濁さ
せて塗布することを特徴とする前記（２）記載のステン
レス鋼溶接用フラックス入りワイヤの製造方法。 （４）ワイヤ表面にポリ四弗化エチレンを塗布した後の
仕上げ伸線の減面率は５〜５０％であることを特徴とす
る前記（２）または（３）記載のステンレス鋼溶接用フ
ラックス入りワイヤの製造方法にある。(3) The production of a flux-cored wire for welding stainless steel according to the above (2), wherein the polytetrafluoroethylene applied to the surface of the wire is applied by suspending it in water, alcohol or ether. Method. (4) The flux for welding stainless steel according to the above (2) or (3), wherein the reduction in the area of the finished wire after applying polytetrafluoroethylene on the wire surface is 5 to 50%. In a method for manufacturing a cored wire.
【００１０】[0010]
【発明の実施の形態】ステンレス鋼溶接用フラックス入
りワイヤの表面に、ポリ四弗化エチレンと液体潤滑剤を
適量有することにより、軟質で長尺のコンジットケーブ
ルを使用し、曲げて溶接される場合においても、ワイヤ
送給ローラ部でのスリップやコンジットチューブ内での
摩擦抵抗が少ないのでワイヤ送給性を極めて良好にす
る。これらの効果は、ポリ四弗化エチレンと液体潤滑剤
の共存効果、相乗効果によりなし得たものであるが、こ
れら組成物の限定理由について以下に述べる。BEST MODE FOR CARRYING OUT THE INVENTION When a flexible and long conduit cable is used to bend and weld by using a suitable amount of polytetrafluoroethylene and a liquid lubricant on the surface of a flux-cored wire for welding stainless steel. In this case, since the slip at the wire feeding roller portion and the frictional resistance within the conduit tube are small, the wire feeding property is extremely improved. These effects can be achieved by the coexistence and synergistic effects of polytetrafluoroethylene and a liquid lubricant. The reasons for limiting these compositions will be described below.
【００１１】まず、ポリ四弗化エチレンは摩擦係数が低
いので溶接時にコンジットチューブ内でワイヤの摩擦抵
抗を低減する。さらに、後述するが、ワイヤ製造時の仕
上げ伸線前にワイヤ表面に塗布したポリ四弗化エチレン
は、仕上げ伸線でワイヤ表面に強固に付着すると同時に
引き伸ばされ、線状あるいは円状の凹部および孔ダイス
を抜けた後に膨らんだ凸部が生じる。したがって、ワイ
ヤ表面に凹凸部を有するのでワイヤ送給ローラ部に送ら
れたワイヤはＶ溝付送給ローラと平形加圧ローラに摩擦
力が働きスリップすることなく送給できる。First, since polytetrafluoroethylene has a low coefficient of friction, it reduces the frictional resistance of a wire in a conduit tube during welding. Furthermore, as will be described later, the polytetrafluoroethylene applied to the wire surface before the finish drawing in the wire manufacturing is firmly attached to the wire surface by the finish drawing and is stretched at the same time, and the linear or circular concave portion and After passing through the hole die, a bulging projection is formed. Therefore, since the surface of the wire has an uneven portion, the wire fed to the wire feeding roller portion can be fed without slipping due to frictional force acting on the V-groove feeding roller and the flat pressure roller.
【００１２】ポリ四弗化エチレンは、ワイヤ表面にワイ
ヤ１０ｋｇ当たり０．２〜１．５ｇとする。ポリ四弗化
エチレンが０．２ｇ未満であると、溶接時にコンジット
チューブ内の摩擦抵抗が大きくなるとともに、仕上げ伸
線時にワイヤ表面に凹凸部が形成されず溶接時にワイヤ
送給ローラ部でワイヤがスリップしてワイヤの送給性が
不良となり、アークが不安定となる。逆に１．５ｇを超
えるとチップとワイヤ間の通電が不良となってアークが
不安定となる。The amount of polytetrafluoroethylene is 0.2 to 1.5 g per 10 kg of wire on the surface of the wire. If the content of polytetrafluoroethylene is less than 0.2 g, the frictional resistance in the conduit tube increases during welding, and no irregularities are formed on the wire surface during finish drawing, and the wire is fed by the wire feed roller during welding. The wire slips and the wire feedability becomes poor, and the arc becomes unstable. Conversely, if the weight exceeds 1.5 g, the current between the tip and the wire becomes poor, and the arc becomes unstable.
【００１３】液体潤滑剤は、前述のポリ四弗化エチレン
塗布後の仕上げ伸線によって生じたワイヤ表面の線状あ
るいは円状の凹部に保持され、溶接時にコンジットチュ
ーブ内での摩擦抵抗をさらに低くする。液体潤滑剤はワ
イヤ表面にワイヤ１０ｋｇ当たり０．０５〜０．５ｇと
する。液体潤滑剤が０．０５ｇ未満であると、ワイヤ送
給時に屈曲したコンジットチューブ内では摩擦抵抗が大
きくなりアークが不安定となる。逆に０．５ｇを超える
と溶接時にワイヤ送給ローラ部でワイヤがスリップして
アークが不安定となる。なお、液体潤滑剤は、各種動植
物油、鉱物油または合成油等をいい、これらを単独ある
いは混合して使用することができる。The liquid lubricant is held in a linear or circular concave portion on the surface of the wire generated by the finish drawing after the above-mentioned polytetrafluoroethylene coating, and further reduces the frictional resistance in the conduit tube during welding. I do. The liquid lubricant is applied to the wire surface at 0.05 to 0.5 g per 10 kg of the wire. If the amount of the liquid lubricant is less than 0.05 g, the friction resistance increases in the conduit tube bent at the time of wire feeding, and the arc becomes unstable. Conversely, if it exceeds 0.5 g, the wire will slip at the wire feed roller during welding, and the arc will become unstable. The liquid lubricant refers to various animal and vegetable oils, mineral oils, synthetic oils, and the like, and these can be used alone or in combination.
【００１４】仕上げ伸線前のステンレス鋼溶接用フラッ
クス入りワイヤ表面に、ポリ四弗化エチレンを塗布して
から仕上げ伸線することにより、図１に模式図で示すよ
うにワイヤ表面に塗布されたポリ四弗化エチレン１が強
固に付着すると同時に引き伸ばされて線状あるいは円状
の凹部２および孔ダイスを抜けた後に膨らんだ凸部３が
生じる。溶接時に前記ワイヤ表面の凹凸部（２，３）に
よって送給ローラ部でＶ溝付送給ローラと平形加圧ロー
ラとに摩擦力が働きワイヤがスリップすることなく送給
される。[0017] As shown in the schematic diagram of FIG. 1, the surface of the flux-cored wire for welding stainless steel before finish wire drawing was coated with polytetrafluoroethylene and then subjected to finish wire drawing. Polytetrafluoroethylene 1 adheres firmly and is stretched at the same time as the linear or circular concave portion 2 and the convex portion 3 bulging after passing through the hole die. During welding, frictional force acts on the V-groove feeding roller and the flat pressure roller at the feeding roller portion due to the irregularities (2, 3) on the wire surface, and the wire is fed without slipping.
【００１５】ワイヤ表面にポリ四弗化エチレン１を塗布
して仕上げ伸線し、液体潤滑剤４を塗布してワイヤ表面
に生じた線状あるいは円状の凹部２に保持させることに
より、液体潤滑剤４の付着性と均一性が向上し溶接時の
コンジットチューブ内での摩擦抵抗がさらに低くなり、
ワイヤ送給性が良好となってアークが安定する。なお、
ワイヤ表面に塗布する液体潤滑剤は仕上げ伸線時の湿式
伸線潤滑剤として、あるいは仕上げ伸線後に静電塗布ま
たは液体潤滑剤を浸したフェルト等にワイヤを挟んで塗
布する。The liquid lubrication is performed by applying polytetrafluoroethylene 1 to the surface of the wire and finish-drawing the wire, and applying a liquid lubricant 4 to hold it in the linear or circular concave portion 2 formed on the surface of the wire. The adhesion and uniformity of the agent 4 are improved, and the frictional resistance in the conduit tube during welding is further reduced,
The wire feedability is improved and the arc is stabilized. In addition,
The liquid lubricant to be applied to the surface of the wire is applied as a wet wire drawing lubricant at the time of finish drawing, or after finishing wire drawing, the wire is applied to a felt or the like soaked with a liquid lubricant or electrostatic coating.
【００１６】仕上げ伸線前にワイヤ表面に塗布するポリ
四弗化エチレンはメタノール、エタノール等のアルコー
ルまたはメチルエーテル、エチルエーテル等のエーテル
にワイヤ表面に塗布する量を考慮して１〜１５％懸濁さ
せて、該懸濁液の槽内にワイヤを通過させたり、懸濁液
槽内に浸漬、あるいは該懸濁液を噴霧して塗布する。ポ
リ四弗化エチレンはアルコールまたはエーテルに均一に
懸濁するので、ワイヤ表面の塗布量にばらつきがなく、
またアルコールまたはエーテルは仕上げ伸線前に揮発す
るのでポリ四弗化エチレンがワイヤ表面に均一かつ強固
に付着する。The amount of polytetrafluoroethylene applied to the surface of the wire before finishing wire drawing is 1 to 15% in consideration of the amount applied to the surface of the wire in an alcohol such as methanol or ethanol or an ether such as methyl ether or ethyl ether. The suspension is turbidized, and a wire is passed through the suspension tank, dipped in the suspension tank, or sprayed to apply the suspension. Polytetrafluoroethylene is uniformly suspended in alcohol or ether, so there is no variation in the coating amount on the wire surface.
In addition, since alcohol or ether is volatilized before wire drawing, polytetrafluoroethylene adheres uniformly and firmly to the wire surface.
【００１７】また、ワイヤ表面にポリ四弗化エチレンを
塗布した後の仕上げ伸線は孔ダイス１〜４個用いて行う
が、仕上げ伸線における減面率は線状または円状の凹凸
部を均一に付与するために５〜５０％とする。仕上げ伸
線の減面率が５％未満であると、線状または円状の凹凸
部が付与され難く、溶接時に送給ローラ部でワイヤがス
リップするとともにコンジットチューブ内でやや摩擦抵
抗が大きくなり、アークが不安定となる。逆に５０％を
超えると、仕上げ伸線後のワイヤ表面にポリ四弗化エチ
レンをワイヤ１０ｋｇ当たり０．２〜１．５ｇ塗布する
ことが困難となり、溶接時にコンジットチューブ内の摩
擦抵抗が大きくなるとともに、仕上げ伸線時にワイヤ表
面に凹部が形成されず溶接時にワイヤ送給ローラ部でワ
イヤがスリップしてワイヤの送給性が不良となり、アー
クが不安定となる。なお、本発明でいうステンレス鋼溶
接用フラックス入りワイヤの断面形状は、各種合わせ目
有りはもちろんのこと、合わせ目なしのシームレスワイ
ヤ等いずれも含む。The final wire drawing after coating polytetrafluoroethylene on the surface of the wire is performed by using one to four hole dies. 5 to 50% for uniform application. If the surface reduction rate of the finish wire drawing is less than 5%, it is difficult to form a linear or circular uneven portion, the wire slips at the feed roller portion during welding, and the frictional resistance in the conduit tube increases slightly. The arc becomes unstable. Conversely, if it exceeds 50%, it becomes difficult to apply 0.2 to 1.5 g of polytetrafluoroethylene per 10 kg of wire to the wire surface after finish drawing, and the frictional resistance in the conduit tube during welding increases. At the same time, a concave portion is not formed on the surface of the wire at the time of finish drawing, and the wire slips at the wire feeding roller portion at the time of welding, so that the wire feeding property becomes poor and the arc becomes unstable. The cross-sectional shape of the flux cored wire for welding stainless steel in the present invention includes not only various seams but also seamless wires without seams.
【００１８】[0018]
【実施例】以下、実施例により本発明をさらに詳細に説
明する。まず、表１に示す径の仕上げ伸線前のステンレ
ス鋼溶接用フラックス入りワイヤ素線表面に、アルコー
ルまたはエーテルに懸濁したポリ四弗化エチレンを塗布
して、液体潤滑剤を用いて孔ダイスで最終径（製品径）
まで仕上げ伸線したＪＩＳ Ｚ３３２３ ＹＦ３０９Ｌ
Ｃ相当のスプール巻のシームレスフラックス入りワイヤ
（フラックス充填率２３％）を試作した。The present invention will be described in more detail with reference to the following examples. First, a polytetrafluoroethylene suspended in alcohol or ether was applied to the surface of a flux-cored wire for stainless steel welding before finishing wire drawing with the diameter shown in Table 1 and then a hole die was formed using a liquid lubricant. Is the final diameter (product diameter)
Finished and drawn to JIS Z3323 YF309L
A prototype of a spool-cored seamless flux-cored wire (flux filling rate: 23%) equivalent to C was produced.
【００１９】[0019]
【表１】 [Table 1]
【００２０】ワイヤ送給性の調査は図２に示す装置を用
いた。すなわち、送給抵抗を高める目的で直径１５０ｍ
ｍのループ９を２回転に設けた６ｍのコンジットケーブ
ル５にスプール６から引き出されたワイヤをワイヤ送給
モータ７によって送給してトーチ８に送り、ワイヤ各１
０ｋｇをステンレス鋼板１０に溶接した。その時の溶接
条件は表２の通りである。The apparatus shown in FIG. 2 was used to investigate the wire feedability. That is, to increase the feed resistance, the diameter is 150 m.
The wire drawn from the spool 6 is fed by a wire feed motor 7 to a 6 m conduit cable 5 provided with a 2 m loop 9 for two rotations, sent to a torch 8, and each of the wires 1.
0 kg was welded to the stainless steel plate 10. Table 2 shows the welding conditions at that time.
【００２１】[0021]
【表２】 [Table 2]
【００２２】ワイヤ送給性は、ワイヤ送給モータ７の電
機子電流の測定により調べた。なお、電機子電流が３．
５Ａを超えるとアーク長が変化してアークが不安定とな
る。ワイヤ送給ローラ部でのワイヤスリップは、ワイヤ
送給ローラの周速（Ｔ）とワイヤ送給ローラ出口側のワ
イヤ速度（Ｗ）を測定し、下記式でスリップ率を算出し
て調べた。ワイヤのスリップ率は５％を超えると、ワイ
ヤ送り速度に緩急が生じてワイヤの送給むらによってア
ークが不安定になる。 スリップ率＝（Ｔ−Ｗ）／Ｔ×１００ それらの結果を表１にまとめて示す。The wire feedability was examined by measuring the armature current of the wire feed motor 7. The armature current is 3.
If it exceeds 5 A, the arc length changes and the arc becomes unstable. The wire slip at the wire feed roller was determined by measuring the peripheral speed (T) of the wire feed roller and the wire speed (W) at the outlet of the wire feed roller, and calculating the slip ratio by the following equation. If the slip ratio of the wire exceeds 5%, the wire feed speed becomes slow and unstable, and the arc becomes unstable due to uneven wire feed. Slip ratio = (T−W) / T × 100 The results are shown in Table 1.
【００２３】表１において、試験Ｎｏ．１〜６が本発明
例、試験Ｎｏ．７〜１２が比較例である。本発明例の試
験Ｎｏ．１〜６は、ワイヤ素線表面にアルコールまたは
エーテルに懸濁したポリ四弗化エチレンを塗布した後
に、ワイヤ表面に線状または円状の凹凸部が生じる適度
の減面率で液体潤滑剤を用いて仕上げ伸線したので、ワ
イヤ表面に適度のポリ四弗化エチレンおよび液体潤滑剤
を有し、長尺のコンジットケーブルを曲げて溶接しても
ワイヤ送給ローラ部でのワイヤスリップ率が小さく、コ
ンジットチューブ内での摩擦抵抗も少なく電機子電流が
低くアークが安定しており極めて満足な結果であった。In Table 1, Test No. 1 to 6 are examples of the present invention and test Nos. 7 to 12 are comparative examples. Test No. of the present invention example. 1 to 6 apply a liquid lubricant at an appropriate reduction in area where linear or circular uneven portions are formed on the wire surface after coating polytetrafluoroethylene suspended in alcohol or ether on the surface of the wire. Since the wire is finished and drawn, it has a moderate amount of polytetrafluoroethylene and liquid lubricant on the wire surface, and the wire slip ratio at the wire feed roller section is small even when bending and welding long conduit cables. In addition, the friction resistance in the conduit tube was small, the armature current was low, and the arc was stable.
【００２４】比較例中試験Ｎｏ．７は、仕上げ伸線の減
面率が低いのでワイヤ表面に線状または円状の凹凸部が
生じず、溶接時にコンジットチューブ内で摩擦抵抗が大
きくなって電機子電流が高くなり、またワイヤ送給部で
ワイヤがスリップしてスリップ率が高くなってワイヤ送
給性が悪くなりアークが不安定となった。試験Ｎｏ．８
は、仕上げ伸線の減面率が高いのでワイヤ表面のポリ四
弗化エチレンの付着量が少なくなって、ワイヤ表面に線
状または円状の凹凸部が生じず、溶接時にコンジットチ
ューブ内で摩擦抵抗が大きくなって電機子電流が高くな
り、またワイヤ送給部でワイヤがスリップしてスリップ
率が高くなってワイヤ送給性が悪くなりアークが不安定
となった。Test No. in the comparative examples. No. 7 has a low surface reduction rate of the finish wire drawing, so that a linear or circular uneven portion does not occur on the wire surface, the frictional resistance increases in the conduit tube during welding, the armature current increases, and the wire feed rate increases. The wire slipped in the feed portion, the slip ratio increased, the wire feedability became poor, and the arc became unstable. Test No. 8
Has a high surface area reduction ratio in the finish wire drawing, so the amount of polytetrafluoroethylene attached to the wire surface is small, no linear or circular irregularities are generated on the wire surface, and friction occurs in the conduit tube during welding. The resistance increased and the armature current increased, and the wire slipped in the wire feeding section, increasing the slip ratio, deteriorating the wire feeding performance and causing the arc to become unstable.
【００２５】試験Ｎｏ．９は、アルコールへのポリ四弗
化エチレンの懸濁量が少ないのでワイヤ表面のポリ四弗
化エチレンの付着量が少なくなって、ワイヤ表面に線状
または円状の凹凸部が生じず、溶接時にコンジットチュ
ーブ内で摩擦抵抗が大きくなって電機子電流が高くな
り、またワイヤ送給部でワイヤがスリップしてスリップ
率が高くワイヤ送給性が悪くなりアークが不安定となっ
た。試験Ｎｏ．１０は、アルコールへのポリ四弗化エチ
レンの懸濁量が多く、ワイヤ表面へのポリ四弗化エチレ
ンの付着量が多くなって、溶接トーチのチップとワイヤ
との通電が不良となってアークが不安定となった。Test No. In No. 9, the amount of polytetrafluoroethylene suspended in the alcohol was small, so the amount of polytetrafluoroethylene adhered to the wire surface was small, and no linear or circular irregularities were formed on the wire surface. Occasionally, the frictional resistance increased in the conduit tube and the armature current increased, and the wire slipped in the wire feeding section, resulting in a high slip rate and poor wire feeding properties, resulting in unstable arcing. Test No. In No. 10, the amount of polytetrafluoroethylene suspended in alcohol was large, the amount of polytetrafluoroethylene adhered to the wire surface was large, and the current between the tip of the welding torch and the wire was poor, resulting in arcing. Became unstable.
【００２６】試験Ｎｏ．１１は、ワイヤ表面への液体潤
滑剤の付着量が少ないので、溶接時にコンジットチュー
ブ内で摩擦抵抗が大きくなり電機子電流が高くなってワ
イヤ送給性が悪くなりアークが不安定となった。試験Ｎ
ｏ．１２は、ワイヤ表面への液体潤滑剤の付着量が多い
ので、ワイヤ送給部でワイヤがスリップしてスリップ率
が高くアークが不安定となった。Test No. In No. 11, since the amount of the liquid lubricant adhering to the wire surface was small, the frictional resistance was increased in the conduit tube during welding, the armature current was increased, the wire feedability was deteriorated, and the arc became unstable. Test N
o. In No. 12, since the amount of liquid lubricant adhering to the wire surface was large, the wire slipped in the wire feeding section, the slip ratio was high, and the arc became unstable.
【００２７】[0027]
【発明の効果】以上詳述したように、本発明のステンレ
ス鋼溶接用フラックス入りワイヤおよびその製造方法に
よれば、軟質で長尺のコンジットチューブを曲げて溶接
しても、ワイヤ送給部でのスリップおよびコンジットチ
ューブ内での摩擦抵抗が少なくアークが安定した溶接が
可能となる。As described above in detail, according to the flux cored wire for welding stainless steel of the present invention and the method for manufacturing the same, even if a flexible and long conduit tube is bent and welded, the wire feeding section can be used. The welding can be performed with low frictional resistance in the slip and conduit tube and stable arc.
【図１】本発明のステンレス鋼溶接用フラックス入りワ
イヤ表面の模式図を示す図である。FIG. 1 is a diagram showing a schematic view of a surface of a flux-cored wire for welding stainless steel of the present invention.
【図２】本発明の実施例に使用した溶接装置を示す図で
ある。FIG. 2 is a diagram showing a welding device used in an embodiment of the present invention.
１ ポリ四弗化エチレン ２ 凹部 ３ 凸部 ４ 液体潤滑剤 ５ コンジットケーブル ６ スプール ７ ワイヤ送給モータ ８ トーチ ９ ループ １０ ステンレス鋼板 DESCRIPTION OF SYMBOLS 1 Polytetrafluoroethylene 2 Concave part 3 Convex part 4 Liquid lubricant 5 Conduit cable 6 Spool 7 Wire feed motor 8 Torch 9 Loop 10 Stainless steel plate
Claims (4)
填してなるワイヤ径０．８〜１．６ｍｍのステンレス鋼
溶接用フラックス入りワイヤの表面にワイヤ１０ｋｇ当
たりポリ四弗化エチレンを０．２〜１．５ｇ、液体潤滑
剤を０．０５〜０．５ｇ有することを特徴とするステン
レス鋼溶接用フラックス入りワイヤ。1. A surface of a flux-cored wire for welding stainless steel having a wire diameter of 0.8 to 1.6 mm obtained by filling a flux in a stainless steel sheath with 0.2 to 1.6 kg of polytetrafluoroethylene per 10 kg of wire. A flux-cored wire for welding stainless steel, comprising 1.5 g and 0.05 to 0.5 g of a liquid lubricant.
填してなるステンレス鋼溶接用フラックス入りワイヤの
製造方法において、ワイヤ表面にポリ四弗化エチレンを
塗布した後に仕上げ伸線して液体潤滑剤を塗布すること
を特徴とするステンレス鋼溶接用フラックス入りワイヤ
の製造方法。2. A method of manufacturing a flux-cored wire for stainless steel welding, wherein a flux is filled in a stainless steel sheath, wherein polytetrafluoroethylene is applied to the surface of the wire, and then the wire is subjected to finish drawing to apply a liquid lubricant. A method for producing a flux-cored wire for stainless steel welding, characterized by applying.
ンは、アルコールまたはエーテルに懸濁させて塗布する
ことを特徴とする請求項２記載のステンレス鋼溶接用フ
ラックス入りワイヤの製造方法。3. The method for producing a flux-cored wire for stainless steel welding according to claim 2, wherein the polytetrafluoroethylene applied to the surface of the wire is applied by suspending it in alcohol or ether.
した後の仕上げ伸線の減面率は５〜５０％であることを
特徴とする請求項２または請求項３記載のステンレス鋼
溶接用フラックス入りワイヤの製造方法。4. The stainless steel welding according to claim 2, wherein a reduction in area of the finished wire drawn after applying polytetrafluoroethylene on the surface of the wire is 5 to 50%. Manufacturing method of flux cored wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06596498A JP3681890B2 (en) | 1998-03-17 | 1998-03-17 | Stainless steel flux cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06596498A JP3681890B2 (en) | 1998-03-17 | 1998-03-17 | Stainless steel flux cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11254182A true JPH11254182A (en) | 1999-09-21 |
| JP3681890B2 JP3681890B2 (en) | 2005-08-10 |
Family
ID=13302197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06596498A Expired - Lifetime JP3681890B2 (en) | 1998-03-17 | 1998-03-17 | Stainless steel flux cored wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3681890B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100343749B1 (en) * | 2000-03-03 | 2002-07-20 | 고려용접봉 주식회사 | Welding wire electrode with surface treatment oil, and apparatus for oiling the surface treatment oil |
| US8901455B2 (en) | 2008-06-18 | 2014-12-02 | Lincoln Global, Inc. | Welding wire for submerged arc welding |
| US8952295B2 (en) | 2008-06-18 | 2015-02-10 | Lincoln Global, Inc. | Welding wire with perovskite coating |
| CN108746934A (en) * | 2018-07-03 | 2018-11-06 | 四川石油天然气建设工程有限责任公司 | A kind of natural gas transmission method for welding pipeline |
-
1998
- 1998-03-17 JP JP06596498A patent/JP3681890B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100343749B1 (en) * | 2000-03-03 | 2002-07-20 | 고려용접봉 주식회사 | Welding wire electrode with surface treatment oil, and apparatus for oiling the surface treatment oil |
| US8901455B2 (en) | 2008-06-18 | 2014-12-02 | Lincoln Global, Inc. | Welding wire for submerged arc welding |
| US8952295B2 (en) | 2008-06-18 | 2015-02-10 | Lincoln Global, Inc. | Welding wire with perovskite coating |
| CN108746934A (en) * | 2018-07-03 | 2018-11-06 | 四川石油天然气建设工程有限责任公司 | A kind of natural gas transmission method for welding pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3681890B2 (en) | 2005-08-10 |
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