JPS61119395A - Coated arc electrode - Google Patents
Coated arc electrodeInfo
- Publication number
- JPS61119395A JPS61119395A JP24164584A JP24164584A JPS61119395A JP S61119395 A JPS61119395 A JP S61119395A JP 24164584 A JP24164584 A JP 24164584A JP 24164584 A JP24164584 A JP 24164584A JP S61119395 A JPS61119395 A JP S61119395A
- Authority
- JP
- Japan
- Prior art keywords
- flux
- coating
- raw material
- weight part
- deteriorated
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/365—Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、フラックス原料の組成如何にかかわらず混線
フラックス自体の塗装性並びに塗装後の被覆外観が良好
な被覆アーク溶接棒に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a coated arc welding rod that has good paintability of the crosstalk flux itself and good coating appearance after coating, regardless of the composition of the flux raw material.
被覆アーク溶接棒は、フラックス原料に固着剤（例えば
水ガラス）や潤滑剤を加え、これを混練して得た被覆用
フラックスを押出塗装機を用いて心線外周に被覆し製造
される。尚本明細書で単にフラックスというときは上記
諸原料の全てを含んで混練され被覆用に形成されたもの
を意味し、ときには混練フラックスと称することもある
。一方溶接におゆるフラックスの基本機能を発揮するも
の、例えば造滓剤、アーク安定剤、ガス発生剤等につい
てはフラックス原料と称し、両者を区別するものとする
。ところで上記水ガラスは、本来その粘性を期待して配
合されるものであるが、その粘度が低い場合には押出塗
装に当たって、流動抵抗の大きいフラックス原料が取シ
残され、流動抵抗の小さい水ガラスだけが絞り出される
現象（絞れ現象）が発生する。しかるに一般の混線フラ
ックス中には、水ガラス等の固着剤の他、潤滑剤（例え
ばアルギン酸Ｎ＠）が加えられておシ、これが潤滑機能
だけでなく水ガラスをゲル化する機能をも発揮している
（従っである意味ではゲル化剤と表現することも可能で
ある）。そこで該ゲル化剤が配合量を調整して粘度を高
めるという対策がとられておシ、これによって前述の絞
れ現象が解消され混線フラックスの塗装性を維持してい
る。A coated arc welding rod is manufactured by adding a fixing agent (for example, water glass) and a lubricant to a flux raw material, kneading the mixture, and coating the outer periphery of a core wire with a coating flux obtained by kneading the mixture using an extrusion coating machine. In this specification, the term "flux" simply refers to a substance that is kneaded and formed for coating by containing all of the above-mentioned raw materials, and is sometimes referred to as kneaded flux. On the other hand, substances that perform the basic functions of flux in welding, such as slag forming agents, arc stabilizers, and gas generating agents, are referred to as flux raw materials to distinguish between the two. By the way, the above-mentioned water glass is originally blended with high viscosity in mind, but if the viscosity is low, flux raw materials with high flow resistance are left behind during extrusion coating, and water glass with low flow resistance is mixed. A phenomenon in which only the image is squeezed out (squeezing phenomenon) occurs. However, in addition to a fixing agent such as water glass, a lubricant (for example, alginic acid N@) is added to a general mixed flux, and this has not only a lubricating function but also a gelling function of the water glass. (Therefore, in a sense, it can also be described as a gelling agent). Therefore, a measure has been taken to increase the viscosity by adjusting the amount of the gelling agent, which eliminates the above-mentioned squeezing phenomenon and maintains the coating properties of the mixed flux.
しかるにゲル化剤として汎用されているアルギン酸Ｎａ
については、■原料となる海藻の種類や産地によって品
質が異なシ、長期にわたって安定した品質を確保するこ
とができない、■天然資源であるので枯渇あるいは不足
する恐れがある等の問題がある。しかも■ゲル化剤とし
てアルギン酸Ｎａを使用した混練フラックスにおいては
、フラックス原料の組成如何によって混練フラックスの
固化現象あるいはシネレシス現象が発生することがあシ
、それによって混線７２ツクスの塗装性が悪化したシ、
混線フラックスの表面がべとついて塗装後の被覆外観を
悪くするという問題にも発展していく。However, sodium alginate, which is commonly used as a gelling agent,
Regarding seaweed, there are problems such as ■The quality varies depending on the type of seaweed used as a raw material and the place of production, and it is not possible to ensure stable quality over a long period of time.■As it is a natural resource, there is a risk of depletion or shortage. Furthermore, in the case of kneaded flux using Na alginate as a gelling agent, solidification or syneresis may occur depending on the composition of the flux raw material, which may cause deterioration in the paintability of the mixed wire 72x. ,
This also leads to the problem that the surface of the crosstalk flux becomes sticky and deteriorates the appearance of the coating after painting.
本発明者等はこうした事態を憂慮し、いかなる組成のフ
ラックス原料を用いた場合にも良好な塗装性及び被覆外
観を保証することのできる手段を提供すべく検討を重ね
た。Concerned about this situation, the inventors of the present invention have conducted repeated studies in order to provide a means that can guarantee good paintability and coating appearance no matter what composition of flux raw material is used.
即ち本発明者等は前記混線フラックスの固化現象あるい
はシネレシス現象等が、ｃａｃＯａ等の成分を多く含む
フラックス組成のときに顕著に発生することに着目した
結果、上記現象がＣａＣＯ５等に起因して放出されるＣ
ａ＋＋等の多価陽イオンがゲル状水ガラスと対応する為
に起こっているのではないか、従ってこれを防止するこ
とができれば上記不都合は解消されるのではないかとの
着想を得るに至った。That is, the present inventors have focused on the fact that the solidification phenomenon or syneresis phenomenon of the crosstalk flux occurs significantly when the flux composition contains a large amount of components such as cacOa. C to be done
I came up with the idea that this may be due to the interaction of polyvalent cations such as a++ with gelled water glass, and that if this could be prevented, the above-mentioned disadvantages could be resolved. .
本発明はこうした着想を基に研究を重ねた結果完成され
たものであって、フラックス原料組成の如何Ｋかかわら
ず塗装性並びに被覆外観が良好な被覆アーク溶接棒を提
供することを目的とするものである。The present invention was completed as a result of repeated research based on these ideas, and the object thereof is to provide a coated arc welding rod with good paintability and coating appearance regardless of the composition of the flux raw material. It is.
上記目的を達成した本発明の被覆アーク溶接棒は、フラ
ックス原料１００重量部に対して０．０１〜３．０重量
部のアクリル系重合体を被覆フラックス中に含有させる
点に要旨が存在する。The gist of the coated arc welding rod of the present invention that achieves the above object is that the coated flux contains 0.01 to 3.0 parts by weight of an acrylic polymer based on 100 parts by weight of the flux raw material.
まず始めに本発明者等は塗装性及び被覆外観の悪化原因
を取除くだけでなく、前述の品質安定化及び資源枯渇対
策をも含めた上でアルギン酸Ｎａに代シうるゲル化剤を
見出す必要があると考え、種々のゲル化剤について検討
した。但し目的とするゲル化剤は、混練フラックスの固
化現象やシネレシス現象等の原因である多価陽イオンと
水ガラスの反応を抑制乃至防止し得るものでなければな
らないこと社言うまでもない。First of all, the present inventors need to find a gelling agent that can replace Na alginate, not only by eliminating the causes of deterioration in paintability and coating appearance, but also by stabilizing the quality and taking measures against resource depletion as described above. We considered various gelling agents to be effective. However, it goes without saying that the intended gelling agent must be capable of suppressing or preventing the reaction between polyvalent cations and water glass, which is the cause of the solidification phenomenon of the kneaded flux and the syneresis phenomenon.
こうした検討の結果得られたゲル化剤即ちアクリル系重
合体は水ガラスに対する親和性が強く、体の骨格の中に
収納する性質を有している。即ち重合体骨格（例えば網
目構造）内部に吸収された水ガラスはゲル状態で安定に
存在し、フラックス原料と混練した際にもそのまわシに
存在する多価陽イオンと反応しない。その結果混線フラ
ックスの同化あるいはシネレシスは発生せず良好な塗装
性が得られる。又混練フラックスの表面がべとつくこと
もない為心線の外周に被覆した後の被覆外観も良好であ
り、被覆形状は安定的に保持される。The gelling agent, ie, the acrylic polymer, obtained as a result of these studies has a strong affinity for water glass and has the property of being accommodated within the body's skeleton. That is, the water glass absorbed inside the polymer skeleton (eg, network structure) stably exists in a gel state, and does not react with the polyvalent cations present in the matrix even when kneaded with the flux raw material. As a result, assimilation or syneresis of the crosstalk flux does not occur, and good coating properties can be obtained. Furthermore, since the surface of the kneaded flux does not become sticky, the appearance of the coating after coating the outer periphery of the core wire is good, and the coating shape is stably maintained.
上記作用効果を発揮するアクリル系重合体としては種々
のものがあ）特に制限がある訳ではないが、特に有効な
ものとしてはアクリル酸−ビニルアルコール共重合体、
アクリル酸ソーダーアクリルアミド共重合体、アクリル
酸塩系重合体等の高吸水性重合体が挙げられる。尚アク
リル系重合体はアルギン酸Ｎａ等とは違い、合成高分子
物質であるので安定した品質のものを長期にわたシ継続
して得ることができる。There are various acrylic polymers that exhibit the above-mentioned effects.Although there are no particular restrictions, particularly effective ones include acrylic acid-vinyl alcohol copolymers,
Highly absorbent polymers such as sodium acrylate-acrylamide copolymers and acrylate-based polymers may be used. Note that, unlike Na alginate and the like, the acrylic polymer is a synthetic polymer material, so it can be obtained with stable quality over a long period of time.
本発明においては、被覆用スラックス中に上記アクリル
系重合体をフラックス原料１００重量部に対して０．０
１〜３−０１量部含有させる必要がある。配合量が０．
０１重量部未満であれば添加効果がなく塗装性能並びに
被覆外観が悪くなる。一方配合量が３．０重量部を超え
る場合には、水ガラスとゲル化剤の配合比が通常一定の
範囲に規定されているところから必然的に水ガラスの添
加量の増大を招く。しかるにこの様な固着剤とフラック
ス原料を混練して得たフラックスは非常に粘稠なものと
な）塗装性が却って悪化するだけでなく、被覆フラック
スの表面がべとついたものとなシ被覆外観も悪化する。In the present invention, the above-mentioned acrylic polymer is added to the slack for coating at 0.0 parts by weight per 100 parts by weight of the flux raw material.
It is necessary to contain 1 to 3-01 parts by weight. The blending amount is 0.
If the amount is less than 0.01 parts by weight, there will be no addition effect and the coating performance and coating appearance will deteriorate. On the other hand, if the blending amount exceeds 3.0 parts by weight, the blending ratio of waterglass and gelling agent is usually specified within a certain range, which inevitably leads to an increase in the amount of waterglass added. However, the flux obtained by kneading such a fixing agent and flux raw material is extremely viscous.) Not only does the paintability deteriorate, but the surface of the coating flux becomes sticky. Appearance also deteriorates.
又本発明においてアクリル系重合体のフラックス原料へ
の添加は水ガラスと同時若しくは一括にあるいは添加の
前後の別途添加のどちらでもよい。Further, in the present invention, the acrylic polymer may be added to the flux raw material at the same time or all at once with the water glass, or may be added separately before or after the addition.
第１表に示す低水素系フラックス原料に第２表に示され
る粉末状高吸水性アクリル系重合体を添加し、均一に混
合した後、水ガラス（比重：１．４Ｌ添加量：１４〜１
６ｔｌ／１００ｇ７９ツクス原料）を加えて混練し、被
覆用フラックスを夫々調製した。得られた各被覆用フラ
ックスを第１図に示す押出試験機に供し、塗装性及び被
覆外観を調べた。The powdered super-absorbent acrylic polymer shown in Table 2 was added to the low-hydrogen flux raw material shown in Table 1, and mixed uniformly.
6 tl/100 g (79 tx raw material) was added and kneaded to prepare each coating flux. Each of the obtained coating fluxes was subjected to an extrusion tester shown in FIG. 1, and the coatability and coating appearance were examined.
尚第１図に示す押出試験に当たっては、シリンダ１内へ
充填し九被覆用フラックスＦを、ピストン２の矢印方向
への押し下げによってダイス３から押出し、その時の押
出圧力の変動を調べ、第２図に示す押出圧力変動パター
ンに従い押出圧力増加速度及び押出圧力のばらつきを夫
々求めた。又押出物の被覆外観についても調査した。結
果は第２表に示す通シであった。In the extrusion test shown in Fig. 1, the coating flux F filled into the cylinder 1 was extruded from the die 3 by pushing down the piston 2 in the direction of the arrow, and the fluctuation of the extrusion pressure at that time was examined. The rate of increase in extrusion pressure and the variation in extrusion pressure were determined according to the extrusion pressure fluctuation pattern shown in FIG. The appearance of the coating on the extrudates was also investigated. The results were as shown in Table 2.
第 １ 表
第２表に示す様に、階１〜４社アクリル系重合体の配合
量が０．０１０重量−未満であるので押出圧力増加速度
並びに押出圧力ばらつきが過大であ）、押出物の表面に
はかすれ傷が発生した。即ち配合量０．０１０重量％未
満では塗装性能及び被覆外観が悪化する。Ｐ１ｈ２０〜
２２ではアクリル系重合体の配合量が３゜０重量％を超
える為ゲル化した固着剤量が過剰となシ被覆フラックス
表面がべとつき、全体に締シがなく押出圧力増加速度も
大きくなシ、混練フラックスに良好な塗装性能及び被覆
外観を得ることができなかった。Ｎ１１３，１６はゲル
化剤としてアルギン酸Ｎａを適用した従来例で押出圧力
のばらつきが大きく塗装性が悪化した。これはフラック
ス中のＣａ成分が多量に含まれる為であると考えられる
。これらに対しＮｎ５〜１２．１４，１５．１７〜１９
はいずれも本発明の要件を満足してお〕、混線スラック
スは良好な塗装性能及び被覆外観を示し、満足し得る品
質の被覆アーク溶接棒を得ることができた。特にＮｕｌ
ｌ。As shown in Table 1 and Table 2, since the blending amount of the acrylic polymers from companies 1 to 4 was less than 0.010% by weight, the rate of increase in extrusion pressure and the variation in extrusion pressure were excessive. There were scratches on the surface. That is, if the amount is less than 0.010% by weight, the coating performance and coating appearance will deteriorate. P1h20～
In No. 22, the blended amount of acrylic polymer exceeds 3.0% by weight, so the amount of gelled fixing agent is excessive, and the coated flux surface becomes sticky, and there is no compaction throughout, and the rate of increase in extrusion pressure is high. It was not possible to obtain good coating performance and coating appearance with the kneaded flux. N113 and 16 were conventional examples in which Na alginate was used as a gelling agent, and the extrusion pressure varied greatly, resulting in poor coating properties. This is considered to be because the flux contains a large amount of Ca component. For these, Nn5~12.14, 15.17~19
[all of which satisfied the requirements of the present invention], the mixed wire slacks showed good coating performance and coated appearance, and coated arc welding rods of satisfactory quality could be obtained. Especially Nul
l.
１２及び阻１４，１５は夫々隘１３及びｌ’ｋ１６と同
じフラックス原料を使用した実施例であるが、フラック
ス原料組成にかかわらず良好な塗装性及び被覆外観を得
ることができた。Examples No. 12 and No. 14 and No. 15 used the same flux raw materials as No. 13 and No. 1'k 16, respectively, and good paintability and coating appearance could be obtained regardless of the flux raw material composition.
本発明は以上の様に構成されておシ、フラックス原料組
成の種類にかかわらず塗装状態及び被覆外観の良好な被
覆アーク溶接棒を提供することができる。又本発明に適
用されるアクリル系重合体（ゲル化剤）は合成物質であ
るので品質が安定し枯渇する恐れもないので上記被覆ア
ーク溶接棒を長期にわたシ安定的に確保することができ
る。The present invention is configured as described above, and can provide a coated arc welding rod with a good coating state and coating appearance regardless of the type of flux raw material composition. Furthermore, since the acrylic polymer (gelling agent) used in the present invention is a synthetic material, its quality is stable and there is no risk of depletion, so the coated arc welding rod can be stably obtained over a long period of time. .
第１図は押出試験機を示す断面説明医、第２図は押出圧
力変動パターンを示すグラ・７である。Fig. 1 is a cross-sectional diagram showing an extrusion tester, and Fig. 2 is a graph 7 showing an extrusion pressure fluctuation pattern.
Claims (1)
溶接棒であつて、フラックス原料１００重量部に対して
０．０１〜３．０重量部のアクリル系重合体を被覆フラ
ックス中に含有させてなることを特徴とする被覆アーク
溶接棒。A coated arc welding rod formed by coating the outer periphery of the core wire with a coating flux, wherein the coating flux contains 0.01 to 3.0 parts by weight of an acrylic polymer based on 100 parts by weight of the flux raw material. A coated arc welding rod characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24164584A JPS61119395A (en) | 1984-11-16 | 1984-11-16 | Coated arc electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24164584A JPS61119395A (en) | 1984-11-16 | 1984-11-16 | Coated arc electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119395A true JPS61119395A (en) | 1986-06-06 |
| JPH0237834B2 JPH0237834B2 (en) | 1990-08-27 |
Family
ID=17077394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24164584A Granted JPS61119395A (en) | 1984-11-16 | 1984-11-16 | Coated arc electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049633A (en) * | 2010-07-13 | 2011-05-11 | 横店集团浙江英洛华电声有限公司 | Loudspeaker voice coil wire welding soldering flux and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126095A (en) * | 1980-03-05 | 1981-10-02 | Kobe Steel Ltd | Covered electrode |
-
1984
- 1984-11-16 JP JP24164584A patent/JPS61119395A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126095A (en) * | 1980-03-05 | 1981-10-02 | Kobe Steel Ltd | Covered electrode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049633A (en) * | 2010-07-13 | 2011-05-11 | 横店集团浙江英洛华电声有限公司 | Loudspeaker voice coil wire welding soldering flux and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237834B2 (en) | 1990-08-27 |
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