JPH0227996Y2

JPH0227996Y2 -

Info

Publication number: JPH0227996Y2
Application number: JP537185U
Authority: JP
Priority date: 1985-01-21
Filing date: 1985-01-21
Publication date: 1990-07-27
Also published as: JPS61122094U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は各種の構造物の片面溶接に用いる裏当
材に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a backing material used for single-sided welding of various structures.

（従来の技術）一般に造船、建築、橋粱等に於て、溶接によつ
て構造物を造る際に、両面溶接が不可能な場合が
多い。このために又は溶接工程の手間を省く目的
で、片面溶接が広く実施されている。この片面溶
接には、裏波ビードを形成させるために裏当材が
使用されているが、簡易片面溶接裏当材として、
軽量短尺の固形裏当材が多用されている。(Prior Art) Generally, when constructing structures by welding in shipbuilding, architecture, bridge construction, etc., double-sided welding is often impossible. For this reason or to save time in the welding process, single-sided welding is widely practiced. In this single-sided welding, a backing material is used to form a uranami bead, but as a simple single-sided welding backing material,
Lightweight, short solid backing materials are often used.

本考案は、この固形裏当材のうち、タイル状の
固形材を長手方向に連続的に並べてテープに貼着
した固形裏当材の改良に係るものである。この裏
当材は、全体として長手方向に可撓性を有するこ
とから、曲面状の被溶接面であつても適応できる
利点がある。 The present invention relates to an improvement of a solid backing material in which tile-shaped solid materials are continuously arranged in the longitudinal direction and adhered to a tape. Since this backing material has flexibility in the longitudinal direction as a whole, it has the advantage that it can be applied even to curved surfaces to be welded.

従来のこの種の裏当材として例えば特公昭57−
22680号公報で開示されたものが知られている。
この従来の裏当材は巾広の粘着テープの中央長手
方向に連続的にセラミツク製のタイルを貼付し、
又タイル部分を除くテープ部分にははく離テープ
を貼付して構成されており、その使用時には裏当
材のはく離テープを除去して粘着剤を露出させて
から、被溶接材の開先線にタイル列を合わせてタ
イル列両側の粘着テープ部分を被溶接材に押し付
けることにより裏当材を被溶接材の開先裏面に取
付ける。こうして裏当材を被溶接材に取付け、し
かる後溶接を行ない、溶接終了後に被溶接材から
裏当材を取り除く。 For example, as a conventional backing material of this type,
The one disclosed in Publication No. 22680 is known.
This conventional backing material is made by pasting ceramic tiles continuously in the center longitudinal direction of a wide adhesive tape.
In addition, release tape is pasted on the tape part other than the tile part, and when using it, the release tape on the backing material is removed to expose the adhesive, and then the tile is attached to the groove line of the material to be welded. The backing material is attached to the back side of the groove of the welded material by aligning the rows and pressing the adhesive tape portions on both sides of the tile rows onto the welded material. In this way, the backing material is attached to the material to be welded, welding is then performed, and the backing material is removed from the material to be welded after welding is completed.

（考案が解決しようとする問題点）このような取付けられた裏当材においては、そ
の取り除くとき粘着テープに貼付され一体性を保
持しているはずのタイル列が該一体性を喪失し、
各タイルバラバラに落下し床面に散らばるという
状態を呈する。これは溶接時の高熱でタイル部分
の粘着テープの接着力が低下し、裏当材を被溶接
材から取り除く段階ではもはやタイルを粘着テー
プに貼付しておくことは出来ない、すなわちタイ
ル列の一体性を保持できない状態となるからであ
る。(Problem to be solved by the invention) In such an attached backing material, when the backing material is removed, the tile rows that are affixed to the adhesive tape and should maintain their integrity lose their integrity;
Each tile falls apart and is scattered on the floor. This is because the adhesive strength of the adhesive tape on the tile part decreases due to the high heat during welding, and when the backing material is removed from the material to be welded, the tile can no longer be stuck to the adhesive tape, that is, the tile row is integrated. This is because they become unable to maintain their sexuality.

本考案はこのような従来技術の欠点を解消し、
溶接終了後においても裏当タイル列の一体性が充
分保持でき、あわせて製造容易な片面溶接用裏当
材を提供することを目的とする。 The present invention eliminates these drawbacks of the conventional technology,
To provide a backing material for single-sided welding that can sufficiently maintain the integrity of a row of backing tiles even after welding and is easy to manufacture.

（問題点を解決するための手段・作用）この目的を達成するための本考案の要旨とする
ところは、裏当材取付用の耐熱テープの中央長手
方向に連続的に裏当タイルを貼着した片面溶接用
裏当材において、裏当タイルの下面又は側面に設
けた凹凸部により前記耐熱テープを穿孔して折曲
部を形成し、該折曲部を前記凹凸部に係合させて
なることにある。(Means/effects for solving the problem) The gist of the present invention to achieve this objective is to attach backing tiles continuously in the longitudinal direction of the center of the heat-resistant tape for attaching the backing material. In the backing material for single-sided welding, the heat-resistant tape is perforated by the uneven portion provided on the lower surface or side surface of the backing tile to form a bent portion, and the bent portion is engaged with the uneven portion. There is a particular thing.

以下本考案を図面に示す具体例により説明する
が、もとより下記の具体例は、本考案を限定する
ものではなく、適宜本考案の主旨を逸脱しない範
囲で、色々な態様が考えられる。 The present invention will be described below with reference to specific examples shown in the drawings, but the following specific examples do not limit the present invention, and various modifications can be made without departing from the gist of the present invention.

第１図ａは本考案の具体例の上側全体斜視図、
同図ｂは下側全体斜視図、第２図は断面図、第３
図はその使用状態図である。１はセラミツク製耐
熱固形材の裏当タイルで、矩形状の断面を有し、
上面（開先に接する面）の中央長手方向にスラグ
ポケツトを凹設している。２は裏当タイル１を被
溶接材の開先裏面に取り付けるための金属箔等の
化撓性耐熱材、例えばAI箔からなる耐熱テープ
であり、裏当タイル１よりも広幅に構成される。
該テープ２は一面に接着剤を塗布され、その塗布
面の中央長手方向に裏当タイル１を連続的に並べ
て貼着し、両端長手方向には接着剤保護のために
はく離テープ３を貼付している。 FIG. 1a is an overall upper perspective view of a specific example of the present invention;
Figure b is a perspective view of the entire lower side, Figure 2 is a sectional view, and Figure 3 is a perspective view of the entire lower side.
The figure shows its usage state. 1 is a backing tile made of ceramic heat-resistant solid material and has a rectangular cross section;
A slug pocket is recessed in the center longitudinal direction of the upper surface (surface in contact with the groove). Reference numeral 2 denotes a heat-resistant tape made of a flexible heat-resistant material such as metal foil, such as AI foil, for attaching the backing tile 1 to the back surface of the groove of the material to be welded, and is configured to have a wider width than the backing tile 1.
The tape 2 is coated with adhesive on one side, backing tiles 1 are continuously lined up and pasted in the longitudinal direction of the center of the coated surface, and release tape 3 is pasted on both ends in the longitudinal direction to protect the adhesive. ing.

以上は従来公知の裏当材の態様であるが、本考
案の裏当材では、さらに裏当タイル１の下面又は
側面に凹凸部、第１図の具体例では裏当タイル１
の下面に２個の凹部４を形成している。そして第
２図に示すように裏当タイル１の凹部４部分の耐
熱テープ２は凹部４の角部に沿つて折り曲げられ
穿孔されている。従つてこの裏当材の下面側で
は、耐熱テープ２に長手方向の凹部列が現れる。 The above are the aspects of the conventionally known backing material, but the backing material of the present invention further includes an uneven portion on the lower surface or side surface of the backing tile 1, and in the specific example of FIG. 1, the backing tile 1
Two recesses 4 are formed on the lower surface of the holder. As shown in FIG. 2, the heat-resistant tape 2 in the concave portion 4 of the backing tile 1 is bent along the corner of the concave portion 4 and perforated. Therefore, on the lower surface side of this backing material, a row of recesses in the longitudinal direction appears in the heat-resistant tape 2.

このような本考案の裏当材を使用する場合は、
第３図の使用状態図に示すように、耐熱テープ２
の両端長手方向に貼付しているはく離テープ３を
はく離して接着剤を露出させ、被溶接材５，５の
開先６に裏当タイル１を位置合わせし、耐熱タイ
ル１両側の耐熱テープを被溶接材に押えつけて裏
当材を取り付ける。このようにして裏当材を取り
付け、しかる後溶接を行ない、溶接終了後に裏当
材を取り除く。この時点においてもタイル１は耐
熱テープ２に保持された状態にあり、依然として
一体性を有する裏当タイル列を形成している。こ
れは裏当タイル１の凹部４に耐熱テープ２の穿孔
部分の折曲部が挿入されて、耐熱テープ２の折曲
部と裏当タイル１の凹部が係合状態にあり、この
状態が溶接終了後においても維持されるからであ
る。すなわち耐熱テープ２の接着力が溶接熱によ
り低下して裏当タイルを貼着しておくことが不可
能になつても裏当タイルの凹部と耐熱テープの折
曲部の係合関係によりタイル列の一体性を保持し
うる。 When using the backing material of this invention,
As shown in the usage state diagram in Figure 3, the heat-resistant tape 2
Peel off the release tape 3 attached in the longitudinal direction at both ends to expose the adhesive, align the backing tile 1 with the groove 6 of the materials to be welded 5, 5, and remove the heat-resistant tapes on both sides of the heat-resistant tile 1. Attach the backing material by pressing it against the material to be welded. The backing material is attached in this manner, welding is then performed, and the backing material is removed after welding is completed. At this point, the tiles 1 are still held by the heat-resistant tape 2 and still form an integral row of backing tiles. This is because the bent part of the perforated part of the heat-resistant tape 2 is inserted into the recessed part 4 of the backing tile 1, and the bent part of the heat-resistant tape 2 and the recessed part of the backing tile 1 are in an engaged state, and this state is the welding state. This is because it is maintained even after the end. In other words, even if the adhesive strength of the heat-resistant tape 2 decreases due to welding heat and it becomes impossible to keep the backing tile attached, the tile row can be maintained due to the engagement relationship between the recess of the backing tile and the bent part of the heat-resistant tape. The integrity of the system can be maintained.

第４図ａ，ｂ，ｃ，ｄに本考案の他の具体例を
示す。第４図ａは第２図の具体例において凹部
４，４にピン７，７を押し込んで裏当タイル１と
耐熱テープ２の係合状態を強化した例、同図ｂは
裏当タイル１の下面に凹部８，８を設けて、該凸
部８と耐熱テープ２を係合させた例、同図ｃは裏
当タイル２１の両側面に凹部１４，１４を設けた
例、同図ｄは裏当タイルの両側面に凹部１４，１
４を設け、さらに下面に凹部２４を設けた例、同
図ｅは裏当タイル４１の下面の凹部３４，３４を
斜めにして耐熱テープ２との係合状態を強化した
例である。 Figures 4a, b, c, and d show other specific examples of the present invention. Fig. 4a shows an example in which the pins 7, 7 are pushed into the recesses 4, 4 in the specific example of Fig. 2 to strengthen the engagement state between the backing tile 1 and the heat-resistant tape 2; An example in which recesses 8, 8 are provided on the lower surface and the protrusions 8 are engaged with the heat-resistant tape 2, FIG. Recesses 14, 1 on both sides of the backing tile
4 is provided, and a recess 24 is further provided on the lower surface. FIG.

（考案の効果）以上のように、本考案の片面溶接用裏当材によ
れば、溶接終了後においても裏当タイル列の一体
性が充分維持できるので、従来のように各タイル
個々に落下して床面に散らばることはなく溶接後
作業性が格段に向上する。(Effects of the invention) As described above, according to the backing material for single-sided welding of the present invention, the integrity of the row of backing tiles can be sufficiently maintained even after welding is completed, so that each tile falls individually as in the conventional method. It does not scatter on the floor, greatly improving workability after welding.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ，ｂは本考案の具体例を示す上側全体
斜視図と下側全体斜視図、第２図は断面図、第３
図はその使用状態図である。第４図ａ，ｂ，ｃ，
ｄ，ｅは本考案の他の具体例を示す断面図であ
る。１……裏当タイル、２……耐熱テープ、４，１
４，２４，３４……凹部。 Figures 1a and b are an upper overall perspective view and a lower overall perspective view showing a specific example of the present invention, Figure 2 is a sectional view, and Figure 3 is a cross-sectional view.
The figure shows its usage state. Figure 4 a, b, c,
d and e are cross-sectional views showing other specific examples of the present invention. 1...Backing tile, 2...Heat-resistant tape, 4,1
4, 24, 34... recess.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

裏当材取付用の耐熱テープの中央長手方向に連
続的に裏当タイルを貼着した片面溶接用裏当材に
おいて、裏当タイルの下面又は側面に設けた凹凸
部により前記耐熱テープを穿孔して折曲部を形成
し、該折曲部を前記凹凸部に係合させてなること
を特徴とする片面溶接用裏当材。 In a backing material for single-sided welding in which a backing tile is continuously attached to the center longitudinal direction of a heat-resistant tape for attaching a backing material, the heat-resistant tape is perforated by an uneven part provided on the bottom or side surface of the backing tile. 1. A backing material for single-sided welding, characterized in that a bent portion is formed by the bending portion, and the bent portion is engaged with the uneven portion.