JP2742107B2 - Metal raw material for flux cored wire - Google Patents
Metal raw material for flux cored wireInfo
- Publication number
- JP2742107B2 JP2742107B2 JP1247658A JP24765889A JP2742107B2 JP 2742107 B2 JP2742107 B2 JP 2742107B2 JP 1247658 A JP1247658 A JP 1247658A JP 24765889 A JP24765889 A JP 24765889A JP 2742107 B2 JP2742107 B2 JP 2742107B2
- Authority
- JP
- Japan
- Prior art keywords
- flux
- metal raw
- cored wire
- amount
- based metal
- 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 - Fee Related
Links
Landscapes
- Nonmetallic Welding Materials (AREA)
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入りワイヤのフラックス用の金属
原料に係り、より詳細には、ガスシールドアーク溶接
用、シールドガスを用いないセルフシールド（ノンガス
シールド）アーク溶接用、サブマージアーク溶接用など
の各種溶接用のフラックス入りワイヤにおいて、金属製
外皮内に充填されるフラックス中に添加するAl及び／又
はMgを主成分とする金属原料に関するものである。Description: TECHNICAL FIELD The present invention relates to a metal material for flux of a flux-cored wire, and more particularly to a self-shielding (non-gas shielding) for gas shielded arc welding without using a shielding gas. The present invention relates to a metal raw material containing Al and / or Mg as a main component, which is added to a flux filled in a metal sheath in a flux-cored wire for various weldings such as arc welding and submerged arc welding.
（従来の技術） 鋼製外皮中にフラックスを充填したフラックス入りワ
イヤには、外皮に継ぎ目のあるもの又は継ぎ目のないも
の、或いは細径のものから太径のものまであり、更には
充填されるフラックスも各種成分系のものが用いられる
など、種々のタイプのものがあるが、一般に溶着速度が
高く、溶接作業性が良好であることから、CO2、CO2＋
O2、Ar、Ar＋O2などのシールドガスを用いたガスシール
ドアーク溶接用のワイヤとして、またシールドガスを用
いないセルフシールドアーク溶接用、或いはサブマージ
アーク溶接用のワイヤとして多用されているところであ
る。(Prior Art) A flux-cored wire in which a steel sheath is filled with a flux has a seam having a seam or a seam without a seam, or a wire having a small diameter to a large diameter, and is further filled. There are various types of fluxes, such as those using various component types. However, generally, since the welding speed is high and the welding workability is good, CO 2 , CO 2 +
It is widely used as a wire for gas shielded arc welding using a shielding gas such as O 2 , Ar, or Ar + O 2, as a wire for self-shielded arc welding without using a shielding gas, or as a wire for submerged arc welding.
ところで、鋼製外皮に充填されるフラックスは、一般
にスラグ剤、シールド剤、アーク安定剤、合金成分、脱
酸剤等々からなり、各種溶接法に応じて適宜調整のうえ
利用されているが、より効果的な成分並びに成分系のフ
ラックス原料開発が精力的に進められている。その１つ
としてAl、Mg系金属原料は、脱酸、脱窒剤及びシールド
剤として、フラックス入りワイヤに適用することが提案
されている。By the way, the flux to be filled into the steel shell is generally composed of a slag agent, a shielding agent, an arc stabilizer, an alloy component, a deoxidizing agent, and the like, and is used after being appropriately adjusted according to various welding methods. The development of effective components and fluxes of component-based flux has been energetically advanced. As one of them, it has been proposed to apply Al and Mg-based metal raw materials to flux-cored wires as deoxidizing, denitrifying and shielding agents.
（発明が解決しようとする課題） Al及び／又はMgを主成分とする金属原料（以下、Al、
Mg系金属原料という）は、脱酸、脱窒剤及びシールド剤
として有効であることは周知であり、現在ではフラック
ス入りワイヤを含め各種溶接材料に適用されている。(Problems to be Solved by the Invention) Metal raw material containing Al and / or Mg as a main component (hereinafter, Al,
It is well known that Mg-based metal raw material is effective as a deoxidizing agent, a denitrifying agent and a shielding agent, and is currently applied to various welding materials including flux cored wires.
しかし、実際にAl、Mg系金属原料を含有するフラック
ス入りワイヤは、往々にしてアーク安定性に欠け、スパ
ッタ発生量が多くなる場合があるなど、バラツキが大き
く、安定した溶接作業性が得られないという問題点があ
る。However, flux-cored wires that actually contain Al and Mg-based metal raw materials often lack arc stability and may generate a large amount of spatter, resulting in large variations and stable welding workability. There is a problem that there is no.
本発明は、かゝる事情に鑑みてなされたものであっ
て、スパッタ発生量が少なく、且つそのバラツキが小さ
く、アーク安定性に優れ、定常的に安定した溶接作業性
が得られるフラックス入りワイヤ用Al、Mg系金属原料を
提供することを目的とするものである。The present invention has been made in view of the above circumstances, and has a small amount of spatter generation, a small variation thereof, excellent arc stability, and a flux-cored wire capable of constantly obtaining stable welding workability. It is an object of the present invention to provide Al and Mg-based metal raw materials.
（課題を解決するための手段） 上記目的を達成するため、本発明者は、前述のAl、Mg
系金属原料を添加したフラックス入りワイヤを用いた場
合、アーク安定性、スパッタ発生量の点でバラツキが大
きくなる原因を究明するべく鋭意研究を進めた。(Means for Solving the Problems) In order to achieve the above object, the present inventor described the above Al, Mg
When a flux-cored wire to which a base metal material is added is used, intensive research has been conducted to determine the cause of the variation in arc stability and spatter generation amount.
まず、その原因については、当初、Al、Mg系金属原料
と共にフラックス中に添加する他のフラックス原料に起
因するものと考え、これら多数のフラックス原料につい
て調査検討を加えたが、効果的な改善策は見い出せなか
った。First, the cause was thought to be due to other flux materials added to the flux together with the Al and Mg-based metal materials at first, and we investigated and investigated many of these flux materials. Could not be found.
そこで、上記原因はAl、Mg系金属原料そのものの物性
に起因するとの判断のもとに、Al、Mg系金属原料の各種
微量成分について分析し、上記原因との関係を検討し
た。その結果、Al、Mg系金属原料中には、通常、微量の
ZnやClが含有されているが、従来、これらの含有量自体
については特にコントロールされておらず、そのために
含有量にバラツキが生じ、その結果、アーク安定性やス
パッタ発生量にバラツキが生じ、実用上支障が生じると
の知見を得て、ここに本発明をなしたものである。Then, based on the judgment that the above-mentioned cause was caused by the physical properties of the Al and Mg-based metal raw materials, various trace components of the Al and Mg-based metal raw materials were analyzed, and the relationship with the above-mentioned causes was examined. As a result, in Al and Mg-based metal raw materials,
Although Zn and Cl are contained, heretofore, their contents themselves have not been particularly controlled, and as a result, the contents vary, and as a result, the arc stability and the amount of spatter generated vary. The present invention has been made based on the finding that practical problems will occur.
すなわち、本発明は、Zn含有量が0.03wt％以下、Cl含
有量が0.05wt％以下であることを特徴とするフラックス
入りワイヤ用Al、Mg系金属原料を要旨とするものであ
る。That is, the gist of the present invention is an Al or Mg-based metal raw material for a flux-cored wire, wherein the Zn content is 0.03 wt% or less and the Cl content is 0.05 wt% or less.
以下に本発明を更に詳細に説明する。 Hereinafter, the present invention will be described in more detail.
（作用） 本発明におけるAl、Mg系金属原料とは、Al、Mgの単体
及びそれらの合金であり、具体的には、金属Al、金属M
g、Fe−Al、Al−Mg、Al−Li、Fe−Si−Mg等を挙げるこ
とができる。(Action) The Al and Mg based metal raw materials in the present invention are simple substances of Al and Mg and alloys thereof, and specifically, metal Al and metal M
g, Fe-Al, Al-Mg, Al-Li, Fe-Si-Mg and the like.
従来、これらのAl、Mg系金属原料は、不純物として混
入するZnやClの含有量について特にコントロールされて
おらず、バラツキも大きいのが通例である。Conventionally, these Al and Mg-based metal raw materials have not been particularly controlled with respect to the content of Zn and Cl mixed as impurities, and generally have large variations.
そこで、本発明者は、Zn含有量、Cl含有量の種々レベ
ルのAl、Mg系金属原料を選定し、これを用いたフラック
ス入りワイヤにて溶接し、スパッタ発生量を調べた。そ
の結果、フラックス入りワイヤの鋼製外皮中に充填され
るAl、Mg系金属原料の多少並びにフラックス成分系にか
かわらず、Al、Mg系金属原料中に含有されるZn量を0.03
wt％以下、Cl量を0.05wt％以下に規制することにより、
スパッタ発生量が減少し、アークが安定することが判明
した。Therefore, the present inventors selected Al and Mg-based metal raw materials having various levels of Zn content and Cl content, welded them with a flux-cored wire using them, and examined the amount of spatter generated. As a result, Al filled in the steel sheath of the flux-cored wire, regardless of the amount of the Mg-based metal raw material and the flux component system, Al, the amount of Zn contained in the Mg-based metal raw material by 0.03
By limiting the amount of Cl to 0.05 wt% or less,
It was found that the amount of spatters was reduced and the arc was stabilized.
かゝる知見を得た実験結果の一例を第１図及び第２図
に示す。なお、実験条件は、後述の実施例での配合諸元
Ａ（第１表参照）にてAl、Mg系金属原料中のZn量、Cl量
を任意に変化させ、1.6mmφのフラックス入りワイヤ
（セルフシールドワイヤ）をフラックス率15％で製造
し、DCEN、300Aの溶接条件で溶接した時のスパッタ発生
量を測定したものである。スパッタ測定方法は実施例の
場合と同じである。FIGS. 1 and 2 show an example of the experimental results obtained as described above. The experimental conditions were as follows: the Zn content and the Cl content in the Al and Mg-based metal raw materials were arbitrarily changed according to the compounding specifications A (see Table 1) in Examples described later, and a 1.6 mmφ flux cored wire ( Self-shielded wire) was manufactured at a flux rate of 15%, and the amount of spatter generated when welding was performed under welding conditions of DCEN and 300A was measured. The sputter measurement method is the same as in the embodiment.
以上の実験結果に基づき、本発明においては、フラッ
クス入りワイヤの鋼製外皮中に充填されるフラックスに
添加するAl、Mg系金属原料としては、Zn含有量を0.03wt
％以下、Cl含有量を0.05wt％以下にコントロールしたも
のを用いる。これにより、スパッタ発生量が少なく、且
つバラツキも少なく、結果としてアーク安定性の優れた
フラックス入りワイヤを提供することができる。Based on the above experimental results, in the present invention, the Al content to be added to the flux filled in the steel sheath of the flux-cored wire, as a Mg-based metal raw material, Zn content is 0.03wt
% And the Cl content is controlled to 0.05 wt% or less. This makes it possible to provide a flux-cored wire having a small amount of spatter generation and little variation, and as a result, excellent arc stability.
なお、本発明によるAl、Mg系金属原料は、各種のフラ
ックス入りワイヤに適用でき、その含有量も適宜調整し
て利用し得ることは云うまでもない。It should be noted that the Al and Mg-based metal raw materials according to the present invention can be applied to various flux-cored wires, and it is needless to say that their contents can be appropriately adjusted and used.
次に本発明の実施例を示す。 Next, examples of the present invention will be described.
（実施例） 第２表に示す種々の性質を有するAl、Mg系金属原料を
準備し、これを添加したフラックスを鋼製外皮に充填し
て1.2mmφのフラックス入りワイヤ（セルフシールドワ
イヤ）を製造した。(Example) Al and Mg-based metal raw materials having various properties shown in Table 2 were prepared, and a flux containing the materials was filled in a steel outer cover to produce a 1.2 mmφ flux-cored wire (self-shielded wire). did.
なお、フラックスの配合（wt％）は、第１表に示す２
種類の配合諸元の組成を用い、約3.0mmφに整径した鋼
製外皮中にフラックス率15％となるように充填した。Note that the blending of the flux (wt%) is as shown in Table 1.
Using the composition of the various kinds of compounding specifications, it was filled into a steel outer shell having a diameter of about 3.0 mmφ so as to have a flux rate of 15%.
次いで、得られたフラックス入りワイヤを用いて、溶
接電流220A、電圧20V、溶接速度25cm/min、突出し長さ1
5mmの条件でシールドガスを用いずに、試験板SM50Aにセ
ルフシールドアーク溶接を行い、スパッタ発生量を調べ
た。その結果を第２表に併記する。Next, using the obtained flux-cored wire, welding current 220 A, voltage 20 V, welding speed 25 cm / min, protrusion length 1
Self-shielded arc welding was performed on the test plate SM50A under the condition of 5 mm without using a shielding gas, and the amount of spatter generated was examined. The results are shown in Table 2.
なお、スパッタ発生量の測定には、第３図に示す装置
を使用した。すなわち、スパッタ発生量は、同図に示す
補集板３を用いてアーク点のまわりに飛散するスパッタ
を補集し、重量を測定することにより求めた。測定時間
は１分間とし、単位時間当たりの値（g/min）を算出し
た（ｎ＝３）。The apparatus shown in FIG. 3 was used for measuring the amount of spatter generation. That is, the amount of generated spatter was determined by collecting spatter scattered around the arc point using the collection plate 3 shown in the figure and measuring the weight. The measurement time was 1 minute, and the value per unit time (g / min) was calculated (n = 3).
第２表より以下の如く考察される。 The following is considered from Table 2.
（１）実験No.1〜No.2、No.6〜No.7は本発明例であり、
いずれもスパッタ発生量が極めて少なくなっている。(1) Experiments No. 1 to No. 2 and No. 6 to No. 7 are examples of the present invention,
In each case, the amount of spatter generated is extremely small.
（２）実験No.3、No.8はAl、Mg系金属原料中のZn量が多
く、実験No.4、No.9はCl量が多く、実験No.5、No.10はZ
n量及びCl量ともに多い例であり、いずれの比較例でも
スパッタ発生量が極めて多くなっている。(2) Experiments No. 3 and No. 8 had a large amount of Zn in Al and Mg-based metal raw materials, Experiments No. 4 and No. 9 had a large amount of Cl, and Experiments No. 5 and No. 10 had a Z amount.
This is an example in which both the n amount and the Cl amount are large, and the spatter generation amount is extremely large in any of the comparative examples.
（発明の効果） 以上説明したように、本発明によれば、スパッタ発生
量が少なく且つバラツキが小さく、したがって、アーク
安定性に優れ、定常的に安定した溶接作業性が得られる
フラックス入りワイヤ用Al、Mg系金属原料を提供するこ
とができる。 (Effects of the Invention) As described above, according to the present invention, a flux-cored wire for which the amount of spatter generated is small and the dispersion is small, and therefore, the arc stability is excellent and the stable and stable welding workability can be obtained. Al, Mg based metal raw materials can be provided.
第１図はAl、Mg系金属原料中のZn量とスパッタ発生量の
関係を示す図、 第２図はAl、Mg系金属原料中のCl量とスパッタ発生量の
関係を示す図、 第３図はスパッタ捕集装置の概略を示す図である。 １……スパッタ補集板、２……ワイヤ送給装置、３……
トーチ、４……は母材、５……台車。FIG. 1 is a diagram showing the relationship between the amount of Zn in the Al and Mg-based metal raw materials and the amount of spatter generated. FIG. 2 is a diagram showing the relationship between the amount of Cl in the Al and Mg-based metal raw materials and the generated spatter. The figure is a diagram schematically showing a sputter collecting apparatus. 1 ... Sputter collection plate, 2 ... Wire feeding device, 3 ...
The torch, 4 ... is the base material, 5 ... the trolley.
Claims (1)
２種の元素を主成分とするフラックス入りワイヤ用金属
原料において、Zn含有量が0.03wt％以下、Cl含有量が0.
05wt％以下であることを特徴とするフラックス入りワイ
ヤ用金属原料。1. A metal material for a flux-cored wire mainly containing one or two elements selected from the group consisting of Al and Mg, wherein the Zn content is 0.03% by weight or less and the Cl content is 0.3%.
Metal raw material for flux-cored wire characterized by being at most 05 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247658A JP2742107B2 (en) | 1989-09-22 | 1989-09-22 | Metal raw material for flux cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247658A JP2742107B2 (en) | 1989-09-22 | 1989-09-22 | Metal raw material for flux cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03110096A JPH03110096A (en) | 1991-05-10 |
| JP2742107B2 true JP2742107B2 (en) | 1998-04-22 |
Family
ID=17166750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1247658A Expired - Fee Related JP2742107B2 (en) | 1989-09-22 | 1989-09-22 | Metal raw material for flux cored wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2742107B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1513783A (en) * | 1974-06-05 | 1978-06-07 | Tompkins Recovery Serv Inc | Apparatus and method for detecting a substance in a fluid medium |
-
1989
- 1989-09-22 JP JP1247658A patent/JP2742107B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03110096A (en) | 1991-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |