JP5064349B2 - Gas pressure welding ring - Google Patents
Gas pressure welding ring Download PDFInfo
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- JP5064349B2 JP5064349B2 JP2008259640A JP2008259640A JP5064349B2 JP 5064349 B2 JP5064349 B2 JP 5064349B2 JP 2008259640 A JP2008259640 A JP 2008259640A JP 2008259640 A JP2008259640 A JP 2008259640A JP 5064349 B2 JP5064349 B2 JP 5064349B2
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- gas
- pressure welding
- gas pressure
- ring
- present
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- 238000003466 welding Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000007872 degassing Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 18
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 238000013022 venting Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Description
本発明は建築現場や土木現場等で利用される丸や条等の鉄筋,レ−ルなどの２本の鋼材をガス圧接する際に用いるものであり、特には特願２００１−１９４２０４（特許第３６２９２２４号）などで用いるガス圧接用環体に関する。 The present invention is used when two steel materials such as rebars and rails used in construction sites and civil engineering sites are gas-welded, and in particular, Japanese Patent Application No. 2001-194204 (Patent No. 2001-194204). 3629224) and the like.
従来、２本の丸や条などの鋼材を対向させてガス圧接する際に、接合する端面間に、該端面と略同形状で且つ鋼材と略同材で環状に形成した環体を挟み込んで使用する発想は、本発明者が特願２００１−１９４２０４で提案したところである。 Conventionally, when two steel materials, such as circles and strips, are opposed to each other by gas pressure welding, an annular body that is substantially the same shape as the end surface and annularly formed from the same steel material is sandwiched between the end surfaces to be joined. The idea to be used is the one proposed by the inventor in Japanese Patent Application No. 2001-194204.
しかしながら特願２００１−１９４２０４は、接合面を合成樹脂雰囲気に包むための合成樹脂製シ−トが環体の内部に入れられているため、合成樹脂がガス化した密閉な空間部は押圧される際に、内部の空気が適宜に押出されて抜け、その空間部の密着を完了させているが、中にはこの時に大きな音を発生させると共に環体の一部が欠けて飛び出す場合もあった。従って、ガス圧接作業中に危険を伴う恐れがあると共に良好な接合面が得られない場合があると言う問題点があった。
本発明はガス圧接作業が安全に行われると共に接合強度が安定出来るガス圧接用環体を提供することを目的とする。 An object of the present invention is to provide an annular body for gas pressure welding in which gas pressure welding work can be performed safely and the bonding strength can be stabilized.
上記問題点を解決するために成されたものであり、つまり、対向する２本の鋼材と略同材で円形断面形状の線材を折曲させて端面（ｗ）と略同形状の大きさの環状に形成した環本体に、その環の切れ目のスキ間を0.3mm〜1.5mmの範囲と成すガス抜き手段（２）が設けられた構造とする。 In order to solve the above-mentioned problem, in other words, a wire having a circular cross-sectional shape is bent substantially in the same material as two opposing steel materials, and has a size approximately the same shape as the end face (w). The ring main body formed in an annular shape is provided with a gas venting means (2) that forms a gap between the ring breaks in the range of 0.3 mm to 1.5 mm.
請求項１のように鋼材（Ｗ）と略同材で円形断面形状の線材を折曲させて前記鋼材（Ｗ）の端面（ｗ）と略同形状の大きさの環状に形成した環本体（１）に、環の切れ目（21）のスキ間（ｓ）を0.3mm〜1.5mmと成すガス抜き手段（２）が設けられ、これをガス圧接する際、接合する２本の鋼材（Ｗ）の端面（ｗ）間に環本体（１）を挟み込むと共に合成樹脂製シ−トなどを具備し、初期加熱後、接合面を合成樹脂雰囲気に包むための合成樹脂製シ−トなどがガス化した空間部を押圧させる際に、内部の空気がガス抜き手段（２）によって適宜に且つ確実に押出されて抜け、その空間部の密着を確実に完了させることができるものとなる。このため、従来の如き空間部を押圧して密着する際に大きな音を発生させる恐れがなくなると共に環本体（１）の一部が欠けて飛び出す恐れもなくなり、ガス圧接作業が安全に行われ、且つ、接合強度を安定させることが可能となる。またガス抜き手段（２）の線材の断面形状を円形とすることにより、端面（ｗ）と接触する部分が曲面となるため、平面に比べて端面（ｗ）との密着が早くなり、空間部の密閉を早めることにより、外部からの酸素の浸入を最小限に押えることが可能となり、接合結果が良好なものとなる。更にガス抜き手段（２）を0.3mm〜1.5mmの範囲の切れ目（21）とすることにより、空間部が押圧されて密着する際に、その内部の充満するガスが切れ目（21）から適宜に押出されて確実に抜け、前記空間部の密着を確実に完了させることができるものとなると共に、切れ目（21）は簡単に設けることが出来るものとなる。
A ring main body (1) formed by bending a wire having a circular cross-sectional shape substantially the same material as the steel material (W) as in claim 1 and having an annular shape having the same shape as the end surface (w) of the steel material (W). 1) is provided with a gas venting means (2) having a gap (s) between the ring breaks (21) of 0.3 mm to 1.5 mm, and two steel materials (W) to be joined when gas-welding them. The ring body (1) is sandwiched between the end faces (w) of the steel sheet and provided with a synthetic resin sheet, etc., and after initial heating, the synthetic resin sheet for wrapping the bonding surface in a synthetic resin atmosphere is gasified. When the space portion is pressed, the air inside is appropriately and reliably pushed out by the gas venting means (2) and removed, so that the close contact of the space portion can be reliably completed. For this reason, there is no risk of generating a loud sound when pressing and adhering to a conventional space portion, and there is no risk of part of the ring body (1) jumping out and gas pressure welding work is performed safely. In addition, the bonding strength can be stabilized. Further, by making the cross-sectional shape of the wire rod of the gas venting means (2) circular, the portion in contact with the end surface (w) becomes a curved surface, so that the close contact with the end surface (w) is faster than the plane, and the space portion By speeding up the sealing, it is possible to suppress the intrusion of oxygen from the outside to a minimum, and the bonding result is good. Furthermore, when the gas venting means (2) has a cut (21) in the range of 0.3 mm to 1.5 mm, when the space portion is pressed and brought into close contact, the gas that fills the inside is appropriately removed from the cut (21). As a result of being pushed out and reliably coming out, it is possible to reliably complete the close contact of the space portion, and it is possible to easily provide the cut (21).
図１、図２は本発明の実施形態を示す図であり、この図に基づいて説明する。（１）は断面形状が円形であり、対向させてガス圧接する２本の鋼材（Ｗ）の端面（ｗ）の外形と略同形状で且つ前記鋼材（Ｗ）と略同材で環状に形成させた環本体であり、該環本体（１）の太さは、鋼材（Ｗ）の大きさに対応して変わるが、一般に２mm〜５mmとするのが良い。また環本体（１）の断面形状としては円形以外に、図４に示す四角形や菱形としても良い。尚、前記環本体（１）の断面形状としては三角形としても良い。（２）は環本体（１）に設けた0.3mm〜1.5mmの範囲の切れ目（21）であるスキ間（ｓ）と成したガス抜き手段であり、切れ目（21）以外のガス抜き手段（２）としては、図３、図４に示すような穴（22）や切欠溝（23）或いは、図３（ｃ）のようなＶ溝や（ｄ）のようなコの字状の溝などの切欠溝（23）を設けても良い。 FIG. 1 and FIG. 2 are diagrams showing an embodiment of the present invention, which will be described based on this figure. (1) has a circular cross-sectional shape, is substantially the same shape as the end faces (w) of two steel materials (W) facing each other and gas-welded, and is formed in an annular shape with the same steel material (W). The thickness of the ring main body (1) varies depending on the size of the steel material (W), but is generally preferably 2 mm to 5 mm. Further, the cross-sectional shape of the ring body (1) may be a quadrangle or rhombus shown in FIG. In addition, as a cross-sectional shape of the said ring main body (1), it is good also as a triangle. (2) is a degassing means formed by a gap (21) which is a cut (21) in the range of 0.3 mm to 1.5 mm provided in the ring body (1), and a degassing means other than the cut (21) ( 2) As shown in FIGS. 3 and 4, a hole (22) and a notch groove (23), a V groove as shown in FIG. 3 (c), and a U-shaped groove as shown in (d), etc. A notch groove (23) may be provided.
次に本発明品を製作する場合、特に鉄筋の鋼材（Ｗ）に用いるために、本発明品を製作する場合について説明する。先ず鋼材（Ｗ）の大きさに対応する線径の鉄線材を用意し、前記鋼材（Ｗ）の外径と略同じ大きさにコイルスプリング状に巻回して形成させる。このコイルスプリング状にしたものから略１周分を切断し、それを平らにして図１、図２のようにする。この時、環の合せ箇所にスキ間（ｓ）を設けてガス抜き手段（２）とするが、この時のスキ間（ｓ）としては、0.2mm〜1.5mmの範囲とするのが良い。特に0.3mm前後とするのが好ましい。 Next, in the case where the product of the present invention is manufactured, the case of manufacturing the product of the present invention, particularly for use in a steel material (W) of rebar will be described. First, an iron wire having a wire diameter corresponding to the size of the steel material (W) is prepared and wound into a coil spring shape so as to be approximately the same size as the outer diameter of the steel material (W). About one round is cut from the coil spring, and it is flattened as shown in FIGS. At this time, a gap (s) is provided at the ring joining portion to form the degassing means (2). The gap (s) at this time is preferably in the range of 0.2 mm to 1.5 mm. In particular, it is preferably around 0.3 mm .
次に本発明品の取付け方法を図４に基づいて説明する。先ず始めに（ａ）の場合は、特願２００８−２５９４３０で使用する環体保持部材が用いられて本発明品を取付けた状態を示し、特願２００８−２５９４３０と同様に環体保持部材の中に本発明品を入れ、対向する２本の鋼材（Ｗ）の端面（ｗ）間に挟み込んで取付ければ良い。（ｂ）〜（ｄ）の場合は、特願２００１−１９４２０４と同様にして、本発明品を対向する２本の鋼材（Ｗ）の端面（ｗ）間に挟み込むと共に本発明品の内部に合成樹脂製シートを入れて取付ければ良い。 Next, a method for attaching the product of the present invention will be described with reference to FIG. First, in the case of (a), the ring holding member used in Japanese Patent Application No. 2008-259430 is used and the product of the present invention is attached. The product of the present invention may be put in, and sandwiched between the end faces (w) of two opposing steel materials (W). In the case of (b) to (d), in the same manner as in Japanese Patent Application No. 2001-194204, the product of the present invention is sandwiched between the end faces (w) of two opposing steel materials (W) and synthesized inside the product of the present invention. A resin sheet may be put in and attached.
次に本発明の作用を図５に基づいて説明する。特願２００１−１９４２０４や特願２００８−２５９４３０に於いて、初期加熱時、環本体（１）の外周縁が溶けて端面（ｗ）同士の外周と密着し、且つ、その前に合成樹脂が燃焼しガス化されて、閉鎖された空間部にガスが図５（ａ），（ｂ）のように充満されることにより、端面（ｗ）の酸化物組成を阻止すると共に、その後、空間部を押圧して内部の空気が押出される際、本発明品を使用すれば、空間部が押圧される際に、ガスが図５（ａ），（ｂ）の点線矢印のように適宜に抜けることで、空間部のガスは中に溜って爆発的に噴出することなく、（ｃ）の如く密着を完了させることができるものとなる。このため、従来発生する恐れがあった大きな音の発生や環本体（１）の一部が欠けて飛び出すこともないものとなる。従って、本発明品を用いればガス圧接作業が安全に行われると共に接合強度が安定出来るものとなるのである。 Next, the operation of the present invention will be described with reference to FIG. In Japanese Patent Application Nos. 2001-194204 and 2008-259430, during the initial heating, the outer peripheral edge of the ring body (1) melts and comes into close contact with the outer periphery of the end faces (w), and the synthetic resin burns before that. The gas space is filled with gas as shown in FIGS. 5 (a) and 5 (b) to prevent the oxide composition of the end face (w). If the product of the present invention is used when the internal air is pushed out by pressing, the gas escapes appropriately as shown by the dotted arrows in FIGS. 5A and 5B when the space is pressed. Thus, the gas in the space can be completed and contact can be completed as shown in FIG. For this reason, there is no generation of loud sound that may have occurred in the past, or a part of the ring main body (1) is not cut out. Therefore, if the product of the present invention is used, the gas pressure welding operation can be performed safely and the bonding strength can be stabilized.
本発明品はガス圧接だけでなく、高周波誘導加熱方式でも充分に対応することが可能なものである。 The product of the present invention can sufficiently cope with not only gas pressure welding but also a high frequency induction heating method.
１ 環本体
２ ガス抜き手段
21 切れ目
22 穴
23 切欠溝
Ｗ 鋼材
ｗ 端面
ｓ スキ間
1 Ring body
2 Degassing means
21 breaks
22 holes
23 Notch groove
W Steel
w End face
s
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008259640A JP5064349B2 (en) | 2008-10-06 | 2008-10-06 | Gas pressure welding ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008259640A JP5064349B2 (en) | 2008-10-06 | 2008-10-06 | Gas pressure welding ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010089104A JP2010089104A (en) | 2010-04-22 |
| JP5064349B2 true JP5064349B2 (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008259640A Active JP5064349B2 (en) | 2008-10-06 | 2008-10-06 | Gas pressure welding ring |
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| JP (1) | JP5064349B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742350B1 (en) * | 2010-06-28 | 2011-08-10 | 株式会社恵信工業 | Pressure welding method for bonded annular body and its pressure bonding jig. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04135027A (en) * | 1990-09-27 | 1992-05-08 | Nkk Corp | Manufacture of insert ring for welding |
| JP3629224B2 (en) * | 2001-06-27 | 2005-03-16 | 東海ガス圧接株式会社 | Pressure welding method |
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| JP2010089104A (en) | 2010-04-22 |
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