JPS6372498A - Gas shielded arc welding wire for galvanized steel sheet - Google Patents
Gas shielded arc welding wire for galvanized steel sheetInfo
- Publication number
- JPS6372498A JPS6372498A JP21413286A JP21413286A JPS6372498A JP S6372498 A JPS6372498 A JP S6372498A JP 21413286 A JP21413286 A JP 21413286A JP 21413286 A JP21413286 A JP 21413286A JP S6372498 A JPS6372498 A JP S6372498A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- galvanized steel
- less
- arc welding
- shielded arc
- 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
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims abstract description 15
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 title claims description 29
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 239000011701 zinc Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は亜鉛メッキ鋼板用ガスシールドアーク溶接ワ
イヤに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a gas-shielded arc welding wire for galvanized steel sheets.
（従来の技術及びその問題点）
自動車、住宅建材等の分野で製品の長寿命化のために防
錆特性の優れた亜鉛メッキ鋼板が多用される傾向にある
。薄板の亜鉛メッキ鋼板ではスポット溶接により継ぎ手
が形成され、このスボ７）溶接が出来ない個所、或いは
厚手の亜鉛メッキ鋼板には溶接用ワイヤを使用してガス
シールドアーク溶接が行われている。(Prior Art and its Problems) In the fields of automobiles, housing construction materials, etc., there is a tendency for galvanized steel sheets with excellent rust prevention properties to be frequently used in order to extend the life of products. Joints are formed on thin galvanized steel sheets by spot welding, and gas-shielded arc welding is performed using welding wire in areas where spot welding is not possible or on thick galvanized steel sheets.
しかしながら、亜鉛メッキＦＡ板は溶接時に高温に晒さ
れるとメッキ層の亜鉛が溶融して亜鉛（Ｚｎ）蒸気とな
って溶接部にブローホールやビット等の溶接欠陥を生じ
るという問題がある。この溶接部のブローホールやピン
トの発生を防止するために、従来、通常亜鉛メッキ鋼板
の溶接部のメッキ層を機械的に除去した後に溶接がおこ
なわれている。However, when galvanized FA plates are exposed to high temperatures during welding, the zinc in the plated layer melts and turns into zinc (Zn) vapor, causing welding defects such as blowholes and bits in the welded area. In order to prevent the occurrence of blowholes and spots in the welded portion, welding has conventionally been performed after mechanically removing the plating layer of the welded portion of galvanized steel sheets.
この方法は溶接欠陥を防止するには有効な方法であるが
、手間が掛かって非能率的である。Although this method is effective in preventing welding defects, it is time-consuming and inefficient.
本発明は斯かる問題点を解決するためになされたもので
、亜鉛メッキＥｔ７Ｍのガスシールドアーク溶接に使用
し、亜鉛メッキ層の除去等の前処理の必要がなく且つブ
ローホールやピント等の溶接欠陥の発生が少ない溶接ワ
イヤを提供することを目的とする。The present invention was made to solve such problems, and is used for gas shielded arc welding of galvanized Et7M, eliminating the need for pretreatment such as removing the galvanized layer, and eliminating the need for welding blowholes, pinholes, etc. The purpose of the present invention is to provide a welding wire with fewer defects.
（問題点を解決するための手段）
上述の目的を達成するために本発明者等が種々の化学成
分の溶接ワイヤを試作して実験を繰り返した結果、ブロ
ーホールやピントの発生の少ない成分範囲を見出した０
本発明は斯かる知見に基づいて成されたもので、本発明
の亜鉛メッキ鋼板用ガスシールドアーク溶接ワイヤは、
重量％でＣ：０．１５％以下、Ｓｉ ： ０．５０〜１
．ＯＱχ、Ｍｎ ： ０．１０〜０．５０％、Ｐ ：
０．０２０％以下、Ｓ：０．０３０％以下、残部実質的
にＦｅからなることを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the inventors of the present invention made prototype welding wires with various chemical compositions and repeatedly conducted experiments. Found 0
The present invention was made based on such knowledge, and the gas shielded arc welding wire for galvanized steel sheets of the present invention is
C: 0.15% or less, Si: 0.50 to 1 in weight%
．． OQχ, Mn: 0.10-0.50%, P:
S: 0.020% or less, S: 0.030% or less, and the remainder substantially consists of Fe.
好ましくは、重量％でＴｉ ： ０．６０％以下と、Ａ
ｌ二０．８０％以下と、Ｎｉ：５．０％以下と、Ｃｕ
： １．０％以下とから選択される一種又は二種以上を
含有することが望ましい。Preferably, Ti: 0.60% or less and A
Ni: 0.80% or less, Ni: 5.0% or less, and Cu
: It is desirable to contain one or more selected from 1.0% or less.
更に好ましくは、Ｓ含有量の下限値を０．０１０％に規
制することが好ましい。More preferably, the lower limit of the S content is regulated to 0.010%.
（作用）
以下本発明の溶接ワイヤに含有する化学成分の作用及び
成分範囲限定理由を説明する。(Function) The function of the chemical components contained in the welding wire of the present invention and the reason for limiting the range of the components will be explained below.
旦二虹艮旦嵐工
Ｃ含有量が増加すると溶接部の靭性が劣化し、割れが発
生し易いので上限値を設けて０．１５Ｘ以下とした。If the C content increases, the toughness of the weld will deteriorate and cracks will easily occur, so an upper limit was set at 0.15X or less.
Ｓｉ：０．５０〜１．００χ、門ｎ：ｏ、１０〜０．５
０χＳｉ及びＭｎは共に強力な脱酸剤であり、下限値以
下では脱酸不足によりブローホール等が増加し、上限値
以上では亜鉛蒸気によるブローホール等が増加する。Si: 0.50-1.00χ, gate n: o, 10-0.5
Both 0xSi and Mn are strong deoxidizers, and below the lower limit, blowholes and the like increase due to insufficient deoxidation, and above the upper limit, blowholes and the like due to zinc vapor increase.
上上虹馴バ嵐工
ＰはＣと同様にその含有量が増加すると割れが発生し易
くなるので上限値を設けて０．０２０″を以下に規制し
た。As with C, cracks are more likely to occur in Kamigami Nijiba Ranko P as its content increases, so an upper limit was set and the value was regulated to 0.020'' or less.
Ｓ ： ０．０３０Ｘ以下、好ましい下限値０．０１０
２Ｓの含有量が規定範囲にあるときブローホール及びピ
ットの発生数が少なく上限値を超えるとブローホール及
びピットの発生数が急増する。しかしながら、ｓ４を減
少していくとブローホール及びピットの発生が増加の傾
向を示すので、下Ｆ！値を０．０１０％に規制すること
が望ましい。S: 0.030X or less, preferred lower limit 0.010
When the 2S content is within the specified range, the number of blowholes and pits generated is small, and when it exceeds the upper limit, the number of blowholes and pits increases rapidly. However, as s4 is decreased, the occurrence of blowholes and pits tends to increase, so lower F! It is desirable to regulate the value to 0.010%.
Ｔｉ、Ａ１．Ｎｉ、Ｃｕ
これらの元素を添加するといずれもブローホール及びピ
ットの発生を抑制する効果を有するが、各上限値（Ｔ
ｉ ： ０．６０％、Ａｌ：０．８０％、Ｎｉ：５．０
％、Ｃｕ：１．０％）を超えて過剰に添加するとブロー
ホール及びピントが却って増加する。Ａｌ。Ti, A1. Ni, Cu Adding these elements has the effect of suppressing the generation of blowholes and pits, but each upper limit (T
i: 0.60%, Al: 0.80%, Ni: 5.0
%, Cu: 1.0%), blowholes and focusing will increase on the contrary. Al.
Ｎｉ及びＣｕはＺｎの固ン容限を高め、Ｚｎ蒸気の発生
を抑制する。又、Ｎｉｌが上限値を超えると割れが発生
し易くなり、しかもＮｉは稀少金属であるから経済的理
由で上限を規制する。Ｃｕ量が上限値を超えると溶接ワ
イヤの加工性を阻害し、好ましくない。Ni and Cu increase the solid capacity of Zn and suppress the generation of Zn vapor. Furthermore, if Ni exceeds the upper limit, cracks are likely to occur, and since Ni is a rare metal, the upper limit is regulated for economic reasons. If the amount of Cu exceeds the upper limit, the workability of the welding wire will be inhibited, which is not preferable.
（実施例）
次に、本発明に係る亜鉛メッキ鋼板用ガスシールドアー
ク溶接ワイヤの実施例を説明する。(Example) Next, an example of the gas-shielded arc welding wire for galvanized steel sheets according to the present invention will be described.
第１表は本発明ワイヤ及び比較ワイヤの化学成分及び溶
接試験結果を示す、第１表に示す成分の銅を溶製してワ
イヤ径１．２φの各供試ワイヤを作製した。そして、各
供試ワイヤを用い溶接電流＝２０ＯＡ 、溶接速度：
８０ｃｍ／ｍｉｎ、シールトガス二Ｃ０２２０ｉ１’
／ｗｉｎの溶接条件で板厚２．３＋ｎ＋＋＋の４５／
４５目付亜鉛メッキ泪仮に重ね隅肉溶接を施し、長さ１
００ｍ１％のビード中のブローホール数及びピット数を
計数して第１表に示した。Table 1 shows the chemical composition and welding test results of the wires of the present invention and comparative wires. Each test wire with a wire diameter of 1.2φ was produced by melting copper having the composition shown in Table 1. Then, using each test wire, welding current = 20OA, welding speed:
80cm/min, seal gas 2C0220i1'
/win welding condition plate thickness 2.3+n+++ 45/
45-metal galvanized steel with overlap fillet welding, length 1
The number of blowholes and the number of pits in the 00m1% bead were counted and shown in Table 1.
（以下余白）
比較ワイヤである供試ワイヤＮｏ、 ７及び８はＳｉ量
が下限値及び上限値をいずれも外れるものであり、供試
ワイヤＮｏ、９及びｌＯはＭｎｌが下限値及び上限値を
いずれも外れるものであり、供試ワイヤＮｏ、１１乃至
Ｉ５は夫々Ｓｌ、Ｔｉ屋、Ａ１量、Ｎｉ星、Ｃｕ＠かい
ずれも上限値を外れるものである。(Left below) Sample wires Nos. 7 and 8, which are comparison wires, have a Si content that is outside the lower limit and upper limit. Test wires No. 9 and 1O have Mnl that exceeds the lower and upper limits. All of the test wires No. 11 to I5 are out of the upper limit value in terms of Sl, Ti, A1 amount, Ni star, and Cu@, respectively.
これらの比較ワイヤのブローホール数及びピット数は本
発明ワイヤに比べると差異は明白であり、比較ワイヤの
方がそれらの数が著しく多い。The number of blowholes and the number of pits of these comparison wires are clearly different from those of the wire of the present invention, and the number of blowholes and pits are significantly larger in the comparison wire.
本発明ワイヤ（供試ワイヤＮｏ、 １〜６）はブロー
ホール数が０〜６であり、ピット数についてはいずれの
供試ワイヤもＯであり、十分に実用に供し得る試験結果
が得られた。ワイヤ中にＴｉ、Ａｌ、Ｎｉ。The wires of the present invention (sample wires No. 1 to 6) had a blowhole number of 0 to 6, and the number of pits was O for all of the test wires, and the test results were sufficiently usable for practical use. . Ti, Al, and Ni in the wire.
Ｃｕの一種又は二種以上を添加すると（供試ワイヤＮｏ
、３〜６）ブローホール数は０〜３に減少し、供試ワイ
ヤＮｏ、１に比較すると溶接欠陥が少ない、しかしなが
ら、Ｓｌが０．０１０％以下の供試ワイヤのブローホー
ル数は増加の傾向があり（供試ワイヤＮｏ、２と供試ワ
イヤＮｏ、１の比較、及び供試ワイヤＮｏ、５と供試ワ
イヤＮｏ、４又は６の比較）、Ｓｌの下限値をｏ、ｏｔ
ｏ％に規制することが望ましい。When one or more types of Cu are added (sample wire No.
, 3 to 6) The number of blowholes decreased to 0 to 3, and there were fewer welding defects compared to test wire No. 1. However, the number of blowholes in the test wire with Sl of 0.010% or less increased. There is a tendency (comparison of test wire No. 2 and test wire No. 1, and comparison of test wire No. 5 and test wire No. 4 or 6), and the lower limit of Sl is o, ot
It is desirable to regulate it to 0%.
（発明の効果）
以上詳述したように、本発明の亜鉛メッキ泪板用ガスシ
ールドアーク溶接ワイヤに依れば、重量％でＣ：Ｏ，１
５％以下、Ｓｉ ： ０．５０〜１．００！ 、 Ｍ
ｎ ：０．１０〜０．５０％、ｐ：ｏ、ｏ２ｏ％以下、
Ｓ ： ０．０３０％以下、残部実質的にＦｅからなり
、好ましくは、これに重量％で１口０．６０％以下と、
Ａｌ ： ０．８０％以下と、Ｎｉ：５．０％以下と、
Ｃｕ：１．０％以下とから選択される一種又は二種以−
ヒを含有させ、更に好ましくシよ、Ｓ含有量の下限値を
０．０１０％に設定するようにしたので、亜鉛メッキ層
の除去等の前処理を行わずに亜鉛メッキ鋼板を溶接して
もブローホールやビット等の溶接欠陥の発生を極めて少
なくすることが出来るという優れた効果を奏する。(Effects of the Invention) As detailed above, according to the gas-shielded arc welding wire for galvanized steel plates of the present invention, C:O, 1
5% or less, Si: 0.50-1.00! , M
n: 0.10-0.50%, p: o, o2o% or less,
S: 0.030% or less, the remainder substantially consisting of Fe, preferably 0.60% or less per unit by weight,
Al: 0.80% or less, Ni: 5.0% or less,
Cu: one or more selected from 1.0% or less
Since the lower limit of the S content is set to 0.010%, galvanized steel sheets can be welded without pretreatment such as removing the galvanized layer. This has the excellent effect of extremely reducing the occurrence of welding defects such as blowholes and bits.
Claims (3)
１．００％、Ｍｎ：０．１０〜０．５０％、Ｐ：０．０
２０％以下、Ｓ：０．０３０％以下、残部実質的にＦｅ
からなることを特徴とする亜鉛メッキ鋼板用ガスシール
ドアーク溶接ワイヤ。(1) C: 0.15% or less, Si: 0.50 to 0.5% by weight
1.00%, Mn: 0.10-0.50%, P: 0.0
20% or less, S: 0.030% or less, remainder substantially Fe
A gas-shielded arc welding wire for galvanized steel sheets, characterized by comprising:
０．８０％以下と、Ｎｉ：５．０％以下と、Ｃｕ：１．
０％以下とから選択される一種又は二種以上を含有する
ことを特徴とする特許請求の範囲第１項記載の亜鉛メッ
キ鋼板用ガスシールドアーク溶接ワイヤ。(2) Furthermore, Ti: 0.60% or less and Al:
0.80% or less, Ni: 5.0% or less, and Cu: 1.
The gas-shielded arc welding wire for galvanized steel sheets according to claim 1, characterized in that it contains one or more selected from 0% or less.
を特徴とする特許請求の範囲第１項又は第２項記載の亜
鉛メッキ鋼板用ガスシールドアーク溶接ワイヤ。(3) The gas-shielded arc welding wire for galvanized steel sheets according to claim 1 or 2, wherein the lower limit of the S content is regulated to 0.010%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214132A JPH0645076B2 (en) | 1986-09-12 | 1986-09-12 | Gas shield arc welding wire for zinc plated steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214132A JPH0645076B2 (en) | 1986-09-12 | 1986-09-12 | Gas shield arc welding wire for zinc plated steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6372498A true JPS6372498A (en) | 1988-04-02 |
| JPH0645076B2 JPH0645076B2 (en) | 1994-06-15 |
Family
ID=16650756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61214132A Expired - Lifetime JPH0645076B2 (en) | 1986-09-12 | 1986-09-12 | Gas shield arc welding wire for zinc plated steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645076B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0289591A (en) * | 1988-09-22 | 1990-03-29 | Daido Steel Co Ltd | Welding wire |
| JP2005324230A (en) * | 2004-05-14 | 2005-11-24 | Toyota Motor Corp | LAP MELT WELDING METHOD FOR GALVANIZED STEEL SHEET, AND Fe BASED FILLER METAL |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596053A (en) * | 1969-07-28 | 1971-07-27 | Mitsubishi Heavy Ind Ltd | Consumable welding rod for welding chromium steels and the resultant welds |
| JPS4913054A (en) * | 1972-05-18 | 1974-02-05 | ||
| JPS50140343A (en) * | 1974-04-28 | 1975-11-11 | ||
| JPS5945096A (en) * | 1982-09-08 | 1984-03-13 | Daido Steel Co Ltd | Welding material |
| US4510374A (en) * | 1982-12-06 | 1985-04-09 | Kabushiki Kaisha Kobe Seiko Sho | Flux-cored wire electrode suitable for use in gas-shielded arc-welding |
| JPS60187482A (en) * | 1984-03-05 | 1985-09-24 | Nippon Steel Corp | Electrode tip for spot welding |
| JPS60257989A (en) * | 1984-06-01 | 1985-12-19 | Kobe Steel Ltd | Welding wire |
| JPS61165294A (en) * | 1985-01-17 | 1986-07-25 | Nippon Steel Corp | Wire for high-speed gas shielded arc welding |
| JPS61169196A (en) * | 1985-01-22 | 1986-07-30 | Kobe Steel Ltd | Flux cored wire for self-shielded arc welding |
| JPS61195793A (en) * | 1985-02-26 | 1986-08-30 | Nissan Motor Co Ltd | Welding wire and welding method |
-
1986
- 1986-09-12 JP JP61214132A patent/JPH0645076B2/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596053A (en) * | 1969-07-28 | 1971-07-27 | Mitsubishi Heavy Ind Ltd | Consumable welding rod for welding chromium steels and the resultant welds |
| JPS4913054A (en) * | 1972-05-18 | 1974-02-05 | ||
| JPS50140343A (en) * | 1974-04-28 | 1975-11-11 | ||
| JPS5945096A (en) * | 1982-09-08 | 1984-03-13 | Daido Steel Co Ltd | Welding material |
| US4510374A (en) * | 1982-12-06 | 1985-04-09 | Kabushiki Kaisha Kobe Seiko Sho | Flux-cored wire electrode suitable for use in gas-shielded arc-welding |
| JPS60187482A (en) * | 1984-03-05 | 1985-09-24 | Nippon Steel Corp | Electrode tip for spot welding |
| JPS60257989A (en) * | 1984-06-01 | 1985-12-19 | Kobe Steel Ltd | Welding wire |
| JPS61165294A (en) * | 1985-01-17 | 1986-07-25 | Nippon Steel Corp | Wire for high-speed gas shielded arc welding |
| JPS61169196A (en) * | 1985-01-22 | 1986-07-30 | Kobe Steel Ltd | Flux cored wire for self-shielded arc welding |
| JPS61195793A (en) * | 1985-02-26 | 1986-08-30 | Nissan Motor Co Ltd | Welding wire and welding method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0289591A (en) * | 1988-09-22 | 1990-03-29 | Daido Steel Co Ltd | Welding wire |
| JP2005324230A (en) * | 2004-05-14 | 2005-11-24 | Toyota Motor Corp | LAP MELT WELDING METHOD FOR GALVANIZED STEEL SHEET, AND Fe BASED FILLER METAL |
| JP4622305B2 (en) * | 2004-05-14 | 2011-02-02 | トヨタ自動車株式会社 | Method of lap fusion welding of Zn-plated steel sheet and Fe-based filler material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645076B2 (en) | 1994-06-15 |
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