JPH0459079B2 - - Google Patents
Info
- Publication number
- JPH0459079B2 JPH0459079B2 JP59241644A JP24164484A JPH0459079B2 JP H0459079 B2 JPH0459079 B2 JP H0459079B2 JP 59241644 A JP59241644 A JP 59241644A JP 24164484 A JP24164484 A JP 24164484A JP H0459079 B2 JPH0459079 B2 JP H0459079B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- tab
- end tab
- groove
- shape
- 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
Links
- 238000003466 welding Methods 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000010953 base metal Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はアーク溶接、なかんづくガスシール
ドアーク溶接によつて鋼材を突合せあるいはすみ
肉溶接等する際に使用するエンドタブに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an end tab used when butting or fillet welding steel materials by arc welding, particularly gas-shielded arc welding.
エンドタブは母材と同材質のスチールタブが用
いられていたが、準備や取付け、および溶接後の
除去と仕上げに手数と時間がかかるので、最近で
はスチールタブに代わり容易に製作でき取付けお
よび除去が迅速簡単にできる耐火物製タブが多用
されるようになつた。
Steel tabs made of the same material as the base metal were used for the end tabs, but since preparation, installation, removal and finishing after welding are time-consuming and labor-intensive, recently steel tabs have been replaced with steel tabs that are easy to manufacture and easy to install and remove. Refractory tabs, which are quick and easy to make, have come into widespread use.
これは溶接ビード端部の溶接余長部をできるだ
け少なくするために、継手の母材の溶接予定線に
交わる両端面に当接使用されるものである。 This is used to contact both end surfaces of the base metal of the joint that intersect with the planned welding line in order to minimize the excess welding length at the end of the weld bead.
従来の耐火物製エンドタブの代表的な形状は第
６図、第７図にみるように、母材の両端面に当接
させる受熱面が平面か、または凹溝８等を設けた
ものであるが溶接余長部を最低限にするため、溶
接始終端を溶接構造部開先内で行う必要がある。 Typical shapes of conventional refractory end tabs, as shown in Figures 6 and 7, have flat heat-receiving surfaces that come into contact with both end faces of the base metal, or have grooves 8, etc. In order to minimize the excess welding length, it is necessary to start and end welding within the groove of the welded structure.
このため、正しい運棒法が守られない場合は溶
接端部で微少なプローホール、溶接不良、あるい
は割れ等の溶接欠陥の残留に対する危惧は完全に
は除かれていない。 Therefore, if the proper rod handling method is not followed, there is a risk that welding defects such as minute plowholes, poor welding, or cracks may remain at the welding end.
上記実状に鑑み、本発明はエンドダブの取付
け、および取外し、仕上作業の簡易等の特徴を有
する耐火物製エンドタブであつて端部溶接欠陥を
皆無ならしめるため溶接始終端部を溶接構造部内
に包含しないようにしたエンドタブの提供を目的
とするものである。
In view of the above-mentioned circumstances, the present invention is a refractory end tab that has features such as easy installation and removal of the end dub and easy finishing work, and includes the welding start and end portions within the welded structure in order to eliminate welding defects at the end. The purpose of this is to provide an end tab that prevents
本発明は固形フラツクスまたは高融点セラミツ
クスよりなり、片側または両側に、溶接する鋼材
の溶接線の開先形状とほぼ同様の形状で始端から
終端面までの長さが５mm以上の凹部を設け、該凹
部表面の一部または全部を薄鋼板で被覆したこと
を特徴とする溶接用エンドタブを要旨とする。
The present invention is made of solid flux or high-melting point ceramics, and has a recessed part on one or both sides of the welding line having a shape similar to that of the welding line of the steel material to be welded and having a length of 5 mm or more from the starting end to the end face. The object of the present invention is to provide an end tab for welding, characterized in that part or all of the surface of the recess is covered with a thin steel plate.
このエンドタブの成形材料としては約48メツシ
ユ以下の細粒にした耐火性粉体で、一般的には耐
火性金属酸化物を主体とした比較的低融点のもの
が使用上便利である。これはタブ部に溶接作業を
延長する際に、タブの壁面をある程度容易に溶融
させることができる事によるもので、これにより
実構造物での開先角度、開先間〓およびそれらの
加工精度の少々の変化にも充分追随できるためで
ある。また低融点材料で乾燥あるいは焼成をした
ものは、溶接後タブの破断が容易で作業性も向上
するからである。しかしコージライト、ステアタ
イト等の高融点のセラミツクスを成形材料として
も本発明エンドタブの機能には変わりはない。こ
れらの材料をバインダーで混和成型し、乾燥、焼
成あるいは焼結の工程を経て製作する。 The molding material for this end tab is a refractory powder made into fine particles of about 48 mesh or less, and is generally convenient to use with a relatively low melting point mainly composed of refractory metal oxides. This is because the wall surface of the tab can be easily melted to some extent when welding work is extended to the tab part, and this makes it possible to improve the groove angle, groove distance, and machining accuracy of the actual structure. This is because it can sufficiently follow even slight changes in . Furthermore, if the material is made of a low melting point material and has been dried or fired, the tab will easily break after welding, and workability will be improved. However, even if high melting point ceramics such as cordierite and steatite are used as the molding material, the function of the end tab of the present invention remains the same. These materials are mixed with a binder, molded, and manufactured through drying, firing, or sintering processes.
またタブに設ける開先形状の凹部の始端から終
端面までの長さを５mm以上としたのは、従来の固
型フラツクスタブの考え方では、端部の溶接余長
形状を必要にして充分な最低限にするため、平面
乃至は僅かな凹みにしているが、このタブでは溶
接始終端部を完全に母材の巾の外側におくことを
特徴とするため、通常のアーク溶接を行う場合、
５mm以上、要すれば10mm以上が必要である。 In addition, the reason why the length from the starting end of the groove-shaped recess provided in the tab to the end surface is set to 5 mm or more is because, in the conventional concept of solid flux tabs, the shape of the welding extra length at the end is necessary, and the length is a sufficient minimum. This tab is flat or has a slight concave surface, but since this tab is characterized by placing the welding start and end completely outside the width of the base material, when performing normal arc welding,
5 mm or more, 10 mm or more is required.
さらに、凹部表面の一部または全部を被覆する
薄鋼板は、アーク溶接時の電極となるので、エン
ドタブから母材、あるいは母材からエンドタブへ
と移行するアークを安定させ、母材の溶接線端部
における融合不良等の欠陥を防止する。 Furthermore, the thin steel plate that covers part or all of the surface of the recess serves as an electrode during arc welding, so it stabilizes the arc moving from the end tab to the base metal or from the base metal to the end tab, This prevents defects such as poor fusion in the parts.
本発明の実施例を図面により説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図は鋼材の突合せ溶接に本発明のエンドタ
ブを取付けたところを示す斜視図とＡ−Ａ矢視
図、第２図は鋼材のすみ肉溶接に本発明のエンド
タブを取付けたところを示す斜視図にして、１，
１′は溶接母材である鋼材、２が本発明の溶接用
エンドタブ、３はルート部の裏当金である。 Fig. 1 is a perspective view and an A-A arrow view showing the end tab of the present invention attached to butt welding of steel materials, and Fig. 2 is a perspective view showing the end tab of the present invention attached to fillet welding of steel materials. As a diagram, 1,
1' is a steel material which is a welding base material, 2 is a welding end tab of the present invention, and 3 is a backing metal for the root portion.
図は何れもレ字形開先のもので、エンドタブ２
には溶接線の開先形状とほぼ同様のレ字形の凹部
５が設けられ、この凹部の始端から終端面６まで
の長さｌは５mm以上に設定される。エンドタブの
レ字形凹部５は、溶接線の開先形状がレ字形以外
の、例えばＶ字形の場合はこれに合わせたＶ字形
凹部に成型される。 The illustrations are of a V-shaped bevel, and the end tab 2
is provided with an L-shaped recess 5 that is substantially similar to the groove shape of the weld line, and the length l from the starting end of this recess to the terminal end face 6 is set to 5 mm or more. If the groove shape of the weld line is other than a V-shape, for example a V-shape, the V-shaped recess 5 of the end tab is formed into a V-shaped recess that matches the groove shape.
第１図、第２図に示したエンドタブは片側に開
先形状の凹部５を設けた例であるが、第３図は両
側に開先形状の凹部５，５を設けた本発明エンド
タブで、図示のものは、レ字形、逆レ字形何れの
開先にも適用できる。 The end tab shown in FIGS. 1 and 2 is an example in which a groove-shaped recess 5 is provided on one side, but FIG. 3 shows an end tab of the present invention in which groove-shaped recesses 5 are provided on both sides. The illustrated groove can be applied to either a V-shaped groove or an inverted V-shaped groove.
また第４図は同じく両側に開先形状の凹部５，
５を設け、その中間にAl箔等７を挿入すること
により、耐熱性の向上を図つたものである。 FIG. 4 also shows groove-shaped recesses 5 on both sides,
5 and inserting Al foil or the like 7 in between, the heat resistance is improved.
上記の各図示例において、エンドタブに設けた
開先形状の凹部５は、いずれも、その表面の全部
または一部が第５図に例示するように、凹部５と
同形状に形成された厚さ３mm以下の薄鋼板４で被
覆してある。これらの薄鋼板は、エンドタブ部に
おける溶接アークの安定を図るものである。 In each of the above illustrated examples, the groove-shaped recess 5 provided in the end tab has a thickness such that all or part of its surface is formed in the same shape as the recess 5, as illustrated in FIG. It is covered with a thin steel plate 4 of 3 mm or less. These thin steel plates are intended to stabilize the welding arc at the end tab portion.
厚さ25mmのJIS SM50A鋼材を最大間〓６mmの
35°レ字形開先を設けて突合せ、炭酸ガスアーク
溶接用鋼ワイヤ1.2φmm、下記の条件で実施した。
25mm thick JIS SM50A steel material with a maximum distance of 6mm
A 35° L-shaped bevel was provided and the steel wire for carbon dioxide arc welding was 1.2φmm, and the welding was carried out under the following conditions.
溶接電流 280A
溶接電圧 31V
溶接速度 20cm／分
この溶接には第１図に示した形状の本発明エン
ドタブを使用した。すなわち凹部５の形状を上記
溶接線の形とし、始端から終端面６までの長さｌ
を15mmに設定して、SiO2−MnO−CaO系のフラ
ツクスに約10％の水ガラスを加え、混和して前記
の形状に成形し、これをCO2ガス中において固化
乾燥させる方法でエンドタブを製作し、さらに、
該エンドタブの凹部５表面全体を別途製作した厚
さ２mmの薄鋼板で被覆した後、これを第１図に示
す如く突合せ溶接予定線の始終端部に治具を用い
て固定した。Welding current: 280A Welding voltage: 31V Welding speed: 20cm/min The end tab of the present invention having the shape shown in FIG. 1 was used for this welding. In other words, the shape of the recess 5 is the shape of the weld line described above, and the length l from the starting end to the terminal end face 6 is
15 mm, add approximately 10% water glass to SiO 2 -MnO-CaO flux, mix and form into the above shape, and solidify and dry it in CO 2 gas to form an end tab. produce, and furthermore,
The entire surface of the concave portion 5 of the end tab was covered with a separately manufactured thin steel plate having a thickness of 2 mm, and then this was fixed using a jig at the starting and ending portions of the planned butt welding line, as shown in FIG.
溶接終了後、治具をはずし固形エンドタブ２を
破断して取り去ったが、溶接欠陥は両端のエンド
タブ内に集中しており、この部分を切断すること
によつて母材部分は健全な溶接継手とすることが
てきた。 After welding was completed, the jig was removed and the solid end tab 2 was broken and removed, but the welding defects were concentrated within the end tabs at both ends, and by cutting this part, the base metal part was made into a sound welded joint. I have something to do.
本発明の溶接用エンドタブは、容易に製作する
ことができ、従来の固形エンドタブのもつ欠陥内
包の気惧を完全に排除するものであり、突合せ接
手、すみ肉接手、重ね継手等エンドタブを使用す
る全ての溶接接手部に適用できる。 The welding end tab of the present invention can be easily produced and completely eliminates the fear of defects that conventional solid end tabs have, and can be used for butt joints, fillet joints, lap joints, etc. Applicable to all welded joints.
第１図イ，ロは突合せ溶接に本発明のエンドタ
ブを取付けたところを示す斜視図とＡ−Ａ矢視
図。第２図はすみ肉溶接に本発明のエンドタブを
取付けたところを示す斜視図。第３図は本発明の
エンドタブの一例を示す斜視図。第４図は本発明
のエンドタブの他の一例を示す斜視図。第５図は
本発明のエンドタブの開先形状の凹部に被覆する
薄鋼板の形状例の斜視図。第６図、第７図はエン
ドタブの従来の形状例を示す斜視図である。
１，１′：母材、２：エンドタブ、３：裏金、
４：薄鋼板、５：開先形状の凹部、６：凹部の終
端面、７：Al箔。
FIGS. 1A and 1B are a perspective view and an A-A arrow view showing the end tab of the present invention attached to a butt weld. FIG. 2 is a perspective view showing the end tab of the present invention attached to a fillet weld. FIG. 3 is a perspective view showing an example of the end tab of the present invention. FIG. 4 is a perspective view showing another example of the end tab of the present invention. FIG. 5 is a perspective view of an example of the shape of a thin steel plate covering the groove-shaped recess of the end tab of the present invention. FIGS. 6 and 7 are perspective views showing examples of conventional shapes of end tabs. 1, 1': Base material, 2: End tab, 3: Back metal,
4: thin steel plate, 5: groove-shaped recess, 6: end surface of recess, 7: Al foil.
Claims (1)
りなり、片側または両側に、溶接する鋼材の溶接
線の開先形状とほぼ同様の形状で始端から終端面
までの長さが５mm以上の凹部を設け、該凹部表面
の一部または全部を薄鋼板で被覆したことを特徴
とする溶接用エンドタブ。1 Made of solid flux or high melting point ceramics, provided with a recess on one or both sides of which has a shape almost similar to the groove shape of the weld line of the steel material to be welded and a length of 5 mm or more from the starting end to the end surface, and the surface of the recess. An end tab for welding characterized in that part or all of the tab is covered with a thin steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24164484A JPS61119398A (en) | 1984-11-16 | 1984-11-16 | Welding end tab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24164484A JPS61119398A (en) | 1984-11-16 | 1984-11-16 | Welding end tab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119398A JPS61119398A (en) | 1986-06-06 |
| JPH0459079B2 true JPH0459079B2 (en) | 1992-09-21 |
Family
ID=17077378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24164484A Granted JPS61119398A (en) | 1984-11-16 | 1984-11-16 | Welding end tab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119398A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03294100A (en) * | 1990-04-10 | 1991-12-25 | Eihou Bussan Kk | End tab made of refactory material for welding and its manufacture |
| JP2564570Y2 (en) * | 1991-08-02 | 1998-03-09 | 栄豊物産株式会社 | End tab for welding |
| KR100359257B1 (en) * | 2000-10-06 | 2002-11-07 | 정무수 | Ceramic end tap for the submerqed arc welding method therewith |
| JP2009270655A (en) * | 2008-05-08 | 2009-11-19 | Jtekt Corp | Manufacturing method of rolling element retainer |
| JP5690478B2 (en) * | 2009-09-28 | 2015-03-25 | 名東産業株式会社 | End tab for welding |
| JP5520592B2 (en) * | 2009-12-21 | 2014-06-11 | 株式会社スノウチ | Arc welding method |
| KR200466571Y1 (en) * | 2011-07-04 | 2013-04-23 | 현대중공업 주식회사 | Tab piece for welding |
| CN104339066B (en) * | 2014-10-11 | 2018-08-14 | 徐州徐工挖掘机械有限公司 | Cut deal butt seam welding connected components and welding method based on ceramic striking liner |
| JP5925278B2 (en) * | 2014-10-28 | 2016-05-25 | 名東産業株式会社 | End tab for welding |
| CN110802349B (en) * | 2019-11-11 | 2021-05-11 | 湖南恒岳重钢钢结构工程有限公司 | Welding device for large steel pipes |
| CN113042875B (en) * | 2021-03-22 | 2022-09-20 | 中国航空制造技术研究院 | Embedded linear friction welding joint defect control method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828545A (en) * | 1971-08-16 | 1973-04-16 | ||
| JPS5339948A (en) * | 1976-09-24 | 1978-04-12 | Toyo Kanetsu Kk | Method of welding parent metal ends in butt welding |
| JPS58199697A (en) * | 1982-05-18 | 1983-11-21 | Nippon Steel Corp | End tab for welding |
-
1984
- 1984-11-16 JP JP24164484A patent/JPS61119398A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828545A (en) * | 1971-08-16 | 1973-04-16 | ||
| JPS5339948A (en) * | 1976-09-24 | 1978-04-12 | Toyo Kanetsu Kk | Method of welding parent metal ends in butt welding |
| JPS58199697A (en) * | 1982-05-18 | 1983-11-21 | Nippon Steel Corp | End tab for welding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61119398A (en) | 1986-06-06 |
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