JP2560961B2 - Raw material for welding flux - Google Patents
Raw material for welding fluxInfo
- Publication number
- JP2560961B2 JP2560961B2 JP5024158A JP2415893A JP2560961B2 JP 2560961 B2 JP2560961 B2 JP 2560961B2 JP 5024158 A JP5024158 A JP 5024158A JP 2415893 A JP2415893 A JP 2415893A JP 2560961 B2 JP2560961 B2 JP 2560961B2
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- Japan
- Prior art keywords
- weight
- moisture absorption
- parts
- flux
- absorption resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、ガラス質のチタン酸金
属よりなる耐吸湿性に優れた溶接フラックス用原料に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material for welding flux, which is made of glassy metal titanate and has excellent moisture absorption resistance.
【０００２】[0002]
【従来技術】アーク溶接に使用される被覆アーク溶接棒
やフラックス入りワイヤ等においては、アークの安定性
を確保するため、アルカリ金属の炭酸塩やフッ化物を溶
接材料（特にフラックス）中に含有させている。これら
アルカリ金属を含有させる目的は、アルカリ金属の電離
電圧が低いという特性を活用し、アークを低電流域でも
安定に持続させるためである。2. Description of the Related Art In coated arc welding rods and flux-cored wires used for arc welding, in order to ensure arc stability, alkali metal carbonates and fluorides are included in the welding material (especially flux). ing. The purpose of incorporating these alkali metals is to utilize the characteristics of alkali metals, which have a low ionization voltage, in order to keep the arc stable even in a low current region.
【０００３】しかし、アルカリ金属を炭酸塩やフッ化物
としてフラックス中に含有させると、フラックスの耐吸
湿性が悪くなり、溶接金属にピットやブロー・ホール欠
陥を発生させる原因になる。またアルカリ金属炭酸塩
は、溶接時に熱分解を起こして炭酸ガスを発生し、この
炭酸ガスはアーク中で炭酸ガス爆発を起こしてスパッタ
及びヒュームを増加させ、溶接作業性を著しく悪化させ
る。またアルカリ金属フッ化物は、熱分解によって生じ
る、高蒸気圧のフッ素ガスのによって懸垂溶滴を大きく
する傾向があり、該大きな溶滴の離脱に伴ってスパッタ
やヒュームを増大させる原因になる。However, when an alkali metal is contained in the flux as a carbonate or a fluoride, the moisture absorption resistance of the flux deteriorates, which causes pits and blow hole defects in the weld metal. Further, the alkali metal carbonate causes thermal decomposition during welding to generate carbon dioxide gas, and this carbon dioxide gas causes carbon dioxide gas explosion in the arc to increase spatters and fumes, which significantly deteriorates welding workability. Alkali metal fluorides tend to increase suspended droplets due to high vapor pressure fluorine gas generated by thermal decomposition, which causes spatter and fume to increase with the separation of the large droplets.
【０００４】こうした問題を改善するための手段として
従来技術では、たとえば特開昭５９−２１２１９２号に
見られる如くチタン酸金属ガラス（主にチタン酸カリウ
ムガラス）に代表される複合酸化物を、主にアーク安定
剤として添加している。即ち、これらチタン酸金属ガラ
スをフラックス成分として含有させると、炭酸塩やフッ
化物を配合したときに見られる炭酸ガスやフッ素ガスに
由来するスパッタやヒュームの発生が見られず、溶接作
業性の向上が期待されるからである。As a means for improving such problems, in the prior art, a composite oxide typified by a metal titanate glass (mainly potassium titanate glass) as shown in JP-A-59-212192 is mainly used. Is added as an arc stabilizer. That is, when these metal titanate glasses are contained as a flux component, the generation of spatters and fumes originating from carbon dioxide and fluorine gas seen when a carbonate or a fluoride is blended is not seen, and the welding workability is improved. Is expected.
【０００５】確かにチタン酸金属ガラスを使用すると、
炭酸塩やフッ化物を使用した場合に比べて溶接作業性は
改善される。しかしながらフラックスの耐吸湿性につい
ては全く改善することができず、吸湿水分に由来するピ
ットやブローホール欠陥は回避できない。そのため、殊
に複合ワイヤ（フラックス入りワイヤ）や被覆アーク溶
接棒の如く大気中に曝らされることの多いフラックス材
料として使用した場合は、フラックスの吸湿が健全な溶
接継手を得るうえで大きな問題となっていた。Certainly, when metal titanate glass is used,
Welding workability is improved as compared with the case of using carbonate or fluoride. However, the moisture absorption resistance of the flux cannot be improved at all, and pit and blowhole defects resulting from moisture absorption cannot be avoided. Therefore, especially when used as a flux material that is often exposed to the atmosphere, such as a composite wire (flux-cored wire) or a coated arc welding rod, absorption of flux is a major problem in obtaining a sound welded joint. It was.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記の様な
従来技術の問題点に着目してなされたものであって、そ
の目的は、優れたアーク安定化効果を有し、且つ耐吸湿
性が良好でピットやブローホール欠陥を生ずることのな
い溶接フラックス用の原料を提供しようとするものであ
る。SUMMARY OF THE INVENTION The present invention has been made by paying attention to the problems of the prior art as described above, and an object thereof is to have an excellent arc stabilizing effect and moisture absorption resistance. sex is intended to provide a good pits or blow over halls material for it without welding flux defects produce.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決すること
のできた本発明に係る溶接フラックス用原料の構成は、
下記の成分組成を満たし、 ＳｉＯ2 ：２０重量部以上 ＴｉＯ2 ：３５〜５５重量部 Ｋ2 Ｏ ：５〜２５重量部 Ｎａ2 Ｏ：１重量部以上 Ｋ2 Ｏ＋Ｎａ2 Ｏ：６〜３０重量部 或はこれらに加えて 酸化ビスマス：１〜２０重量部および／または酸化鉛：
１〜２０重量部 を含有するチタン酸金属ガラスよりなるところに要旨を
有するものである。The constitution of the raw material for welding flux according to the present invention, which has been able to solve the above-mentioned problems, is as follows:
Satisfies the following component composition: SiO 2 : 20 parts by weight or more TiO 2 : 35 to 55 parts by weight K 2 O: 5 to 25 parts by weight Na 2 O: 1 part by weight or more K 2 O + Na 2 O: 6 to 30 parts by weight Alternatively, in addition to these, bismuth oxide: 1 to 20 parts by weight and / or lead oxide:
The gist is that it is composed of a metal titanate glass containing 1 to 20 parts by weight.
【０００８】[0008]
【作用】本発明者らはチタン酸金属等の複合酸化物の前
記特長を生かし、その欠点として指摘される耐吸湿性を
改善すべく種々検討を進めた結果、チタン酸金属系複合
酸化物の成分組成を特定することによって従来の結晶質
からガラス質に改質してやれば、フラックス全体として
の耐吸湿性が著しく改善され、吸湿に起因するピットや
ブローホール欠陥の発生を効果的に防止し得ることを知
った。即ち本発明では、チタン酸金属系複合酸化物の成
分組成を前述の様に特定することによってガラス質化
し、それにより耐吸湿性を高めたところに特徴を有する
ものであって、該成分組成を定めた理由は下記の通りで
ある。The present inventors have conducted various studies to improve the moisture absorption resistance, which is pointed out as a drawback by taking advantage of the above-mentioned characteristics of the composite oxide such as metal titanate. By modifying the conventional crystalline to glassy by specifying the component composition, the moisture absorption resistance of the entire flux is significantly improved, and it is possible to effectively prevent the occurrence of pit and blowhole defects due to moisture absorption. I knew that. That is, the present invention is characterized in that the component composition of the metal titanate-based composite oxide is vitrified by specifying it as described above, thereby increasing the moisture absorption resistance, and the component composition is The reasons for setting are as follows.
【０００９】ＳｉＯ2 ：２０重量部以上，ＴｉＯ2 ：３
５〜５５重量部 溶接用フラックス原料として使用されているチタン酸金
属系複合酸化物におけるＳｉＯ2 含量は通常１５重量部
程度以下であり、このようなＳｉＯ2 含量のチタン酸金
属系複合酸化物は結晶質であって吸湿性を有している。
ところが本発明者らが種々研究を行なったところによる
と、ガラスのネット・ワーク・フォーマー（以下、ＮＷ
Ｆと略す）であるＳｉＯ2 含量を２０重量部以上に高め
てやれば、複合酸化物はガラス質となって耐吸湿性が著
しく高められることが分かった。そこで本発明において
はチタン酸金属系複合酸化物をガラス質化するため、Ｎ
ＷＦであるＳｉＯ2 含量を２０重量部以上にすることが
不可欠の要件となる。但し、こうしたＳｉＯ2 含量を満
たす場合であっても、その理由は未解明であるが、Ｔｉ
Ｏ2 含量が３５重量部未満になると、かえって耐吸湿性
は悪くなってしまう。一方、ＴｉＯ2 含量が５５重量部
を超えて多量になると、上記ＳｉＯ2 含量もしくは下記
のＫ2 ＯやＮａ2 Ｏの必要量を確保できなくなり、やは
り満足のいく耐吸湿性が得られなくなる。こうした点を
考慮してＳｉＯ2 のより好ましい含有量は２０〜３０重
量部、ＴｉＯ2 のより好ましい含有量は４５〜５５重量
部の範囲である。SiO 2 : 20 parts by weight or more, TiO 2 : 3
SiO 2 content in the metal titanate based composite oxide 5 to 55 is used as a flux material for parts welding generally not more than about 15 parts by weight, such SiO 2 containing the amount of metal titanate based composite oxide Is crystalline and has hygroscopicity.
However, according to various researches conducted by the present inventors, a glass network former (hereinafter referred to as NW
It has been found that when the SiO 2 content, which is abbreviated as F), is increased to 20 parts by weight or more, the composite oxide becomes vitreous and the moisture absorption resistance is significantly improved. Therefore, in the present invention, in order to vitrify the metal titanate-based composite oxide, N
It is indispensable to set the SiO 2 content of WF to 20 parts by weight or more. However, even if such a SiO 2 content is satisfied, the reason for this is unclear, but Ti
When the O 2 content is less than 35 parts by weight, the moisture absorption resistance is rather deteriorated. On the other hand, if the TiO 2 content exceeds 55 parts by weight and becomes large, the above SiO 2 content or the necessary amount of K 2 O or Na 2 O described below cannot be secured, and satisfactory moisture absorption resistance cannot be obtained. More preferable content is 20 to 30 parts by weight of SiO 2 in consideration of these points, and more preferably the content of TiO 2 is in the range of 45 to 55 parts by weight.
【００１０】 Ｋ2 Ｏ：５〜２５重量部，Ｎａ2 Ｏ：１重量部以上， （Ｋ2 Ｏ＋Ｎａ2 Ｏ）：６〜３０重量部 上記ＳｉＯ2 含量及びＴｉＯ2 含量の要件を見たすガラ
ス質のチタン酸カリウムを対象として、その耐吸湿性を
一段と高めるべく更に研究を行ったところ、チタン酸カ
リウムガラスにおけるＫ2 Ｏの一部をＮａ2 Ｏで置換し
てやれば、ガラス質としての耐吸湿性が一層高められる
ことを知った。K 2 O: 5 to 25 parts by weight, Na 2 O: 1 part by weight or more, (K 2 O + Na 2 O): 6 to 30 parts by weight Glass satisfying the above SiO 2 content and TiO 2 content requirements As a result of further research aimed at further improving the moisture absorption resistance of high quality potassium titanate, if a portion of K 2 O in potassium titanate glass is replaced with Na 2 O, moisture absorption resistance as glassy I learned that you can improve your sex.
【００１１】これは、Ｎａ+ の方がＫ+ よりもイオン半
径が小さく、ＳｉＯ2 をＮＷＦとするガラスの骨格を破
壊することが相対的に少ないため、これが耐吸湿性の向
上に好結果をもたらしたものと推定される。This is because Na + has a smaller ionic radius than K + and relatively less breaks the skeleton of the glass containing SiO 2 as NWF, and this has a good result in improving the moisture absorption resistance. It is presumed to have brought.
【００１２】但し、適量のＮａ2 Ｏを置換して含有させ
た場合でも、Ｋ2 Ｏ含量が２５重量部を超えて多量にな
ると、Ｎａ2 Ｏ含量に関係なくＮＷＦ構造の破壊が起こ
り易くなって耐吸湿性は悪くなる。逆に、Ｋ2 Ｏ含量が
５重量部未満では、Ｎａ2 Ｏ含量に関係なく良好なアー
ク安定性を確保できない。また（Ｋ2 Ｏ＋Ｎａ2 Ｏ）が
上記範囲未満でも良好なアーク安定性を確保できず、ま
た上記範囲を超えると耐吸湿性向上効果が発揮できなく
なる。However, even when a suitable amount of Na 2 O is substituted and contained, if the K 2 O content exceeds 25 parts by weight and becomes large, the NWF structure is easily broken regardless of the Na 2 O content. Therefore, the moisture absorption resistance becomes poor. On the contrary, if the K 2 O content is less than 5 parts by weight, good arc stability cannot be secured regardless of the Na 2 O content. If (K 2 O + Na 2 O) is less than the above range, good arc stability cannot be ensured, and if it exceeds the above range, the moisture absorption resistance cannot be improved.
【００１３】本発明に係るフラックス原料を構成するチ
タン酸金属ガラスの成分組成は上記の通りであり、これ
らの要件を満足させることによって、耐吸湿性が良好で
アーク安定性に優れたガラス質の複合酸化物を得ること
ができるが、更に他の金属酸化物として酸化ビスマスや
酸化鉛を夫々１〜２０重量部程度夫々単独でもしくは複
合して含有させると、耐吸湿性を一段と優れたものにす
ることができる。これは酸化ビスマスや酸化鉛がガラス
のネットワーク・モディファイヤー（以下、ＮＷＭと略
す）として有効に作用したものと考えられる。そしてこ
うした効果は夫々１重量部以上含有させることによって
有効に発揮されるが、２０重量部を超えると、結果とし
てＳｉＯ2 ，ＴｉＯ2 ，Ｋ2 Ｏ，Ｎａ2 Ｏ等の成分組成
が前述の要件を満足できなくなり、本発明本来の特徴を
生かせなくなる。The composition of the metallic titanate glass constituting the flux raw material according to the present invention is as described above. By satisfying these requirements, a glass material of good moisture absorption resistance and excellent arc stability is obtained. A composite oxide can be obtained, but if bismuth oxide or lead oxide is contained as another metal oxide in an amount of 1 to 20 parts by weight, respectively, individually or in combination, the moisture absorption resistance is further improved. can do. It is considered that bismuth oxide and lead oxide effectively acted as a glass network modifier (hereinafter abbreviated as NWM). These effects are effectively exhibited by containing 1 part by weight or more of each, but if it exceeds 20 parts by weight, as a result, the composition of components such as SiO 2 , TiO 2 , K 2 O, Na 2 O, etc. is required. Can no longer be satisfied, and the original characteristics of the present invention cannot be utilized.
【００１４】上記以外にもＡｌ2 Ｏ3 やＺｒＯ2 等がＮ
ＷＭとして有効に作用するが、それらの効果は酸化ビス
マスや酸化鉛ほど大きくない。しかし必要によってはこ
れらを１〜２０重量部程度併用することも可能である。In addition to the above, Al 2 O 3 and ZrO 2 are N
Although it works effectively as a WM, those effects are not as great as those of bismuth oxide and lead oxide. However, if necessary, these may be used in combination of about 1 to 20 parts by weight.
【００１５】本発明は以上のように構成されており、溶
接フラックス用原料としての耐吸湿性を著しく高めるこ
とにより、ピットやブローホール欠陥を防止しつつ優れ
たアーク安定化効果を発揮し得ることになった。従って
このチタン酸金属ガラスは主としてアーク安定剤として
有効に使用されるが、このチタン酸金属ガラスはスラグ
形成剤としても有効であり、且つビード形状を良好にす
る効果も有しているので、このような効果をねらったフ
ラックス原料としても使用することができる。The present invention is constituted as described above, and it is possible to exert an excellent arc stabilizing effect while preventing pit and blowhole defects by significantly increasing the moisture absorption resistance as a raw material for welding flux. Became. Therefore, this metal titanate glass is mainly used effectively as an arc stabilizer, but since this metal titanate glass is also effective as a slag forming agent and also has the effect of improving the bead shape, It can also be used as a flux raw material for such an effect.
【００１６】尚、上記チタン酸金属ガラスの粒度構成は
特に限定されないが、フラックス原料として他成分と均
一に混和されてその効果を万遍なく有効に発揮させるに
は、粒度を４８メッシュ以下、より好ましくは２００メ
ッシュ以下が２０〜８０％を占める様にすることが望ま
しい。しかして上記粒度構成よりも粗粒になると、溶接
材料中に該チタン酸金属ガラスが均一に分散しにくくな
り、溶接材料のアーク安定性改善効果等が有効に発揮さ
れ難くなるからである。一方、２００メッシュ以下の微
粒物が８０％を超えると、比表面積の増大によって溶接
材料として耐吸湿性が悪化傾向を示す様になる。[0016] Incidentally, the particle size configuration of the titanate metallic glass is not particularly limited, its causes effect evenly effectively exerted and is uniformly mixed with other ingredients as flux raw materials, particle size 48 mesh or less, and more It is desirable that 200 mesh or less occupy 20 to 80%. If the grain size is coarser than that of the above grain size composition, however, the metal titanate glass is less likely to be uniformly dispersed in the welding material, and it is difficult to effectively exhibit the arc stability improving effect of the welding material. On the other hand, when the content of fine particles of 200 mesh or less exceeds 80%, the moisture absorption resistance of the welding material tends to deteriorate due to an increase in the specific surface area.
【００１７】本発明のチタン酸金属ガラスが用いられる
フラックスとしては、ＳＭＡＷ（被覆アーク溶接棒）、
ＦＣＡＷ（フラックス入りワイヤ）、ＳＡＷ（サブマー
ジ溶接）などに使用されるフラックスが挙げられ、フラ
ックス中への好ましい添加量は、０．０１〜１０％であ
る。０．０１％未満ではチタン酸金属ガラスの添加効果
が有効に発揮されず、一方１０％を超えると、溶接時の
生成スラグ量が多くなりすぎてスラグの先行が起こり易
くなり、スラグ巻き込み等の欠陥を生じ易くなる。チタ
ン酸金属ガラスのより好ましい添加量は、０．１〜５％
である。As the flux in which the metallic titanate glass of the present invention is used, SMAW (coated arc welding rod),
Fluxes used for FCAW (flux-cored wire), SAW (submerged welding) and the like can be mentioned, and the preferable addition amount to the flux is 0.01 to 10%. If it is less than 0.01%, the effect of adding the metallic titanate glass is not effectively exhibited. On the other hand, if it exceeds 10%, the amount of slag produced during welding becomes too large and slag is likely to occur, causing slag entrainment. Defects are likely to occur. The more preferable addition amount of metallic titanate glass is 0.1 to 5%.
Is.
【００１８】[0018]
【実施例】次に実施例を挙げて本発明の構成および作用
効果をより具体的に説明するが、本発明はもとより下記
実施例によって制限を受けるものではなく、前・後記の
趣旨に適合し得る範囲で変更して実施することも可能で
あり、それらはいずれも本発明の技術的範囲に含まれ
る。EXAMPLES Next, the constitution and effects of the present invention will be described in more detail with reference to examples. However, the present invention is not limited by the following examples, and conforms to the spirit of the preceding and the following. It is also possible to carry out the invention by changing it within the range to be obtained, and all of them are included in the technical scope of the present invention.
【００１９】実施例 (1) 供試材（チタン酸金属ガラス）の調製 表１に示す成分組成となる様に各原料酸化物を秤量して
混合し、電気炉（またはアーク炉）で溶解させた後、凝
固・粉砕・篩い分けしてチタン酸金属ガラス粉末を得
た。 (2) 耐吸湿性の評価方法 上記で得た各チタン酸金属ガラス粉末を、直径３５mmの
秤量瓶に試料充填高さが４．５〜５．５mmとなる様に装
入し、これを１１０℃で２時間予備乾燥してその重量を
正確に秤量した後、湿度８０％、温度３０℃の恒温・恒
湿雰囲気中に４８時間放置してから秤量し、重量増加率
によって耐吸湿性を求める。 （吸湿量評価） ◎：８００ppm 未満 ○：８００ppm 以上４０００ppm 未満 △：４０００ppm 以上１００００ppm 未満 ×：１００００ppm 以上Example (1) Preparation of Test Material (Metallic Titanate Glass) Each raw material oxide was weighed and mixed so as to have the composition shown in Table 1, and melted in an electric furnace (or arc furnace). After that, it was solidified, pulverized and sieved to obtain a metal titanate glass powder. (2) Evaluation method of moisture absorption resistance Each of the metal titanate glass powders obtained above was placed in a weighing bottle having a diameter of 35 mm so that the sample filling height would be 4.5 to 5.5 mm, and 110 Pre-dry for 2 hours at ℃, weigh accurately, then leave it in a constant temperature / humidity atmosphere with a humidity of 80% and a temperature of 30 ℃ for 48 hours and then weigh it to determine the moisture absorption resistance by the rate of weight increase. . (Evaluation of Moisture Absorption) ◎: Less than 800ppm ○: 800ppm or more and less than 4000ppm △: 4000ppm or more and less than 10000ppm ×: 10000ppm or more
【００２０】(3) 溶接作業性評価 下記成分組成のフラックスに上記で得た各チタン酸金属
ガラス粉末を１％添加して均一に混合し、これを下記成
分組成の軟鋼製またはステンレス鋼（SUS304）製の鞘材
内に充填して伸線加工し、軟鋼鞘の場合はフラックス率
１５±１％、ステンレス鋼鞘の場合はフラックス率２２
±１％で直径１．２mmのフラックス入りワイヤを製造す
る。得られた各ワイヤを用いて溶接実験を行ない、官能
評価によってアーク安定性の良否を調べた。 （フラックス組成） 軟鋼の場合 Ｓｉ：５％，ＴｉＯ2 ：４２％，Ｆｅ：２６％，ＺｒＯ2 ：５％， Ｍｎ：１５％，Ｎａ2 Ｏ＋Ｋ2 Ｏ：０．５％，弗化物：０．５％， ＳｉＯ2 ：５％，チタン酸金属ガラス：１％ 高合金の場合 Ｆｅ：２７％，Ｃｒ：２２％，Ｎａ2 Ｏ＋Ｋ2 Ｏ：１．９％， ＳｉＯ2 ：１５％，Ｍｎ：１２％，弗化物：０．１％，ＺｒＯ2 ：８％ ＴｉＯ2 ：７％，Ｎｉ：４％，Ａｌ2 Ｏ3 ：２％，チタン酸金属ガラス ：１％ （鞘材成分） 軟鋼鞘…Ｃ：０．０５％、Ｍｎ：０．３５％、Ｓｉ：０．１５％、 Ｐ：０．０１％、Ｓ：０．０１％、残部Ｆｅ ステンレス鋼鞘…Ｃ：０．０１％，Ｓｉ：０．０４４％，Ｍｎ：１．０３ ％，Ｐ：０．０１５％，Ｓ：０．００５％，Ｃｒ： １８．９０％，Ｎｉ：１０．５０％ 結果を表１に示す。(3) Evaluation of welding workability 1% of each metal titanate glass powder obtained above was added to a flux having the following composition and uniformly mixed, and this was made of mild steel or stainless steel (SUS304) having the following composition. ) Sheath material
Filled inside and wire-drawn, flux rate 15 ± 1% for mild steel sheath, flux rate 22 for stainless steel sheath
A flux-cored wire with a diameter of 1.2 mm is manufactured with ± 1%. Welding experiments were conducted using the obtained wires, and the quality of arc stability was examined by sensory evaluation. (Flux composition) In the case of mild steel Si: 5%, TiO 2 : 42%, Fe: 26%, ZrO 2 : 5%, Mn: 15%, Na 2 O + K 2 O: 0.5%, fluoride: 0. 5%, SiO 2 : 5%, metallic titanate glass: 1% In case of high alloy Fe: 27%, Cr: 22%, Na 2 O + K 2 O: 1.9%, SiO 2 : 15%, Mn: 12 %, Fluoride: 0.1%, ZrO 2 : 8% TiO 2 : 7%, Ni: 4%, Al 2 O 3 : 2%, metallic titanate glass: 1% (sheath material component) Mild steel sheath C : 0.05%, Mn: 0.35%, Si: 0.15%, P: 0.01%, S: 0.01%, balance Fe stainless steel sheath ... C: 0.01%, Si: 0 0.044%, Mn: 1.03%, P: 0.015%, S: 0.005%, Cr: 18.90%, Ni: 10.50% The results are shown in Table 1. Shown in
【００２１】[0021]
【表１】 [Table 1]
【００２２】表１より次の様に考察することができる。
Ｎｏ．４，５，６，１１，１３は本発明の規定要件を満
たすチタン酸金属ガラスを用いたものであり、いずれも
優れた耐吸湿性とアーク安定性を有している。中でもＮ
ｏ．６は酸化物として酸化ビスマスまたは酸化鉛を併用
したものであり、とりわけ優れた耐吸湿性が得られてい
る。これら以外のものは、下記の如く本発明で定める規
定要件のいずれかを欠く従来例もしくは比較例であり、
耐吸湿性もしくはアーク安定性のいずれかが不良であ
る。From Table 1, the following can be considered.
No. Nos. 4, 5, 6, 11, and 13 are those using metallic titanate glass that satisfies the requirements of the present invention, and all have excellent moisture absorption resistance and arc stability. Above all, N
o. No. 6 is a combination of bismuth oxide and lead oxide as oxides, and particularly excellent moisture absorption resistance is obtained. Other than these are conventional examples or comparative examples lacking any of the prescribed requirements defined in the present invention as follows,
Either the moisture absorption resistance or arc stability is poor.
【００２３】Ｎｏ．１：ＳｉＯ2 量が少なくＴｉＯ2 量
が過多で且つＮａ2 Ｏが含まれていない従来例であり、
耐吸湿性が悪い。 Ｎｏ．２，３：Ｎａ2 Ｏが添加されていないか、あるい
は不足する比較例であり、耐吸湿性が悪い。 Ｎｏ．７：酸化ビスマスおよび酸化鉛の量が多過ぎる比
較例であり、耐吸湿性が不十分である。 Ｎｏ．８：（Ｋ2 Ｏ＋Ｎａ2 Ｏ）量が多過ぎるため耐吸
湿性が悪くなっている。 Ｎｏ．９，１０：ＴｉＯ2 量が不足しまたは多過ぎる比
較例であり、やはり耐吸湿性が悪い。 Ｎｏ．１２：Ｋ2 Ｏ量が多過ぎる比較例であり、耐吸湿
性が悪い。 Ｎｏ．１４：（Ｋ2 Ｏ＋Ｎａ2 Ｏ）量が不足する比較例
であり、耐吸湿性は良好であるがアーク安定性が悪い。 Ｎｏ．１５：ＳｉＯ2 量が不足する比較例であり、耐吸
湿性が悪い。No. 1: a conventional example in which the amount of SiO 2 is small and the amount of TiO 2 is excessive and Na 2 O is not contained,
Poor moisture absorption resistance. No. This is a comparative example in which 2,3: Na 2 O is not added or insufficient, and the moisture absorption resistance is poor. No. 7: Comparative example in which the amounts of bismuth oxide and lead oxide are too large, and the moisture absorption resistance is insufficient. No. 8: Since the amount of (K 2 O + Na 2 O) is too large, the moisture absorption resistance is poor. No. 9, 10: Comparative examples in which the amount of TiO 2 was insufficient or too large, and the moisture absorption resistance was also poor. No. 12: Comparative example in which the amount of K 2 O is too large, and the moisture absorption resistance is poor. No. 14: Comparative example in which the amount of (K 2 O + Na 2 O) is insufficient, the moisture absorption resistance is good, but the arc stability is poor. No. 15: Comparative example in which the amount of SiO 2 is insufficient, and the moisture absorption resistance is poor.
【００２４】[0024]
【発明の効果】本発明は以上の様に構成されており、チ
タン酸金属の成分組成を特定すると共にガラス質化する
ことによって、優れたアーク安定化効果を確保しつつフ
ラックス原料としての耐吸湿性を著しく高めることがで
き、優れた溶接作業性のもとでピットやブローホール等
の欠陥のない健全な溶接継手を与えるフラックス原料を
提供し得ることになった。The present invention is constituted as described above, and by specifying the component composition of the metal titanate and vitrifying it, it is possible to secure an excellent arc stabilizing effect and to prevent moisture absorption as a flux raw material. Therefore, it has become possible to provide a flux raw material that can significantly improve the weldability and can provide a sound welded joint without defects such as pits and blowholes under excellent welding workability.
Claims (2)
ラスよりなることを特徴とする耐吸湿性に優れた溶接フ
ラックス用原料。 ＳｉＯ2 ：２０重量部以上 ＴｉＯ2 ：３５〜５５重量部 Ｋ2 Ｏ ：５〜２５重量部 Ｎａ2 Ｏ：１重量部以上 Ｋ2 Ｏ＋Ｎａ2 Ｏ：６〜３０重量部1. A raw material for welding flux having excellent moisture absorption resistance, which is made of a metal titanate glass satisfying the following composition. SiO 2 : 20 parts by weight or more TiO 2 : 35 to 55 parts by weight K 2 O: 5 to 25 parts by weight Na 2 O: 1 part by weight or more K 2 O + Na 2 O: 6 to 30 parts by weight
を含むものである請求項１記載のフラックス用原料。2. The method according to claim 1, further comprising at least one metal oxide selected from the group consisting of bismuth oxide: 1 to 20 parts by weight and lead oxide: 1 to 20 parts by weight as another component. Raw material for flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5024158A JP2560961B2 (en) | 1993-02-12 | 1993-02-12 | Raw material for welding flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5024158A JP2560961B2 (en) | 1993-02-12 | 1993-02-12 | Raw material for welding flux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06234095A JPH06234095A (en) | 1994-08-23 |
| JP2560961B2 true JP2560961B2 (en) | 1996-12-04 |
Family
ID=12130535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5024158A Expired - Lifetime JP2560961B2 (en) | 1993-02-12 | 1993-02-12 | Raw material for welding flux |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2560961B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3816070B2 (en) * | 2003-09-16 | 2006-08-30 | 株式会社神戸製鋼所 | Titanya flux cored wire |
| CN103347646B (en) * | 2011-02-08 | 2015-12-02 | 株式会社神户制钢所 | Welding material raw titanium oxide material |
-
1993
- 1993-02-12 JP JP5024158A patent/JP2560961B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06234095A (en) | 1994-08-23 |
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