JPH06255005A - Joint part of sheet material and its production - Google Patents
Joint part of sheet material and its productionInfo
- Publication number
- JPH06255005A JPH06255005A JP5083763A JP8376393A JPH06255005A JP H06255005 A JPH06255005 A JP H06255005A JP 5083763 A JP5083763 A JP 5083763A JP 8376393 A JP8376393 A JP 8376393A JP H06255005 A JPH06255005 A JP H06255005A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- welding
- pair
- cross
- bridging
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ポリ塩化ビニル等の熱
溶着性樹脂からなるシートの接合部とその製造方法に関
し、より詳しくは、一対のシート部材の間の架橋接合部
の構造とその高周波溶着による接合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining portion of a sheet made of a heat-welding resin such as polyvinyl chloride and a method for producing the same, and more specifically, a structure of a cross-linking joining portion between a pair of sheet members and its construction. The present invention relates to a joining method by high frequency welding.
【０００２】[0002]
【従来の技術】ポリ塩化ビニル等の熱溶着性樹脂のフイ
ルムや、繊維基布をこれらの樹脂で被覆したシートは高
周波溶着により容易に縫製できるため広く利用されてい
る。これらのシートを縫製して空気などを充填したもの
はエアマット、簡易プール、人形・動物・乗物などのバ
ルーンからイベントや建築工事現場の仮設建物にまで用
途が拡がっている。また、粉粒体や液体の容器としてフ
レキシブルコンテナや水槽も利用が拡がっている。この
ような気体、液体、粉粒体を充填するシート製品の場
合、所望の形態を維持するためにしばしば内部に架橋構
造（わたり）を設ける必要が生じる。特にエアマットや
仮設建物の壁面や屋根など一定の厚さを必要とする場
合、多数の架橋部が必要であり、その加工は極めて繁雑
であった。2. Description of the Related Art Films of heat-fusible resins such as polyvinyl chloride and sheets of fiber base cloth coated with these resins are widely used because they can be easily sewn by high-frequency welding. These sheets that are sewn and filled with air are used for air mats, simple pools, balloons such as dolls, animals, and vehicles, as well as temporary buildings at events and construction sites. In addition, flexible containers and aquariums are being widely used as containers for powders and liquids. In the case of a sheet product filled with such a gas, a liquid or a granular material, it is often necessary to provide a crosslinked structure (crossover) inside in order to maintain a desired shape. In particular, when a certain thickness such as an air mat or the wall or roof of a temporary building is required, a large number of bridges are required, and the processing is extremely complicated.
【０００３】従来、この繁雑さを避けるため表裏のシー
トを直接接合することも行われたが、性能、外観上不満
足なものであった。別の架橋部材を用いる方法では同種
あるいは異種のシートや紐が使われ、接合方法は１ケ所
づつ熱溶着によって行われるが、そのため溶着作業の回
数が多いうえにシートの裏面に架橋部材を溶着するため
大きなシートの取扱いが作業を困難にして来た。また、
別の問題点として、このような加圧流体を充填する製品
においては、架橋構造に大きな張力がかかるため架橋部
材とシート部材との接合部の剥離が起こりやすく、両手
を合わせた形の「拝み」接合では信頼性に欠けるとされ
ている。Conventionally, in order to avoid this complexity, the front and back sheets have been directly joined, but the performance and appearance have been unsatisfactory. In the method of using another cross-linking member, the same or different type of sheet or string is used, and the joining method is performed by heat welding one by one. Therefore, the number of welding operations is large and the cross-linking member is welded to the back surface of the sheet. Therefore, the handling of large sheets made the work difficult. Also,
Another problem is that in products filled with such a pressurized fluid, a large amount of tension is applied to the cross-linking structure, so that the joint between the cross-linking member and the sheet member is easily peeled off. It is said that the joint is unreliable.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、対向
する一対のシート部材の間を架橋部材により接合するに
当り、剥離に対し強い接合部構造と、その接合部の効率
のよい製造方法を提供するものである。SUMMARY OF THE INVENTION It is an object of the present invention to join a pair of sheet members facing each other with a bridging member, and to provide a joint structure which is strong against peeling and an efficient manufacturing method of the joint. Is provided.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するた
め、本発明者は対向する一対のシート部材と架橋部材の
接合部の剥離の機構とその防止策につき研究の結果、
「拝み」方式の架橋シート片を脊中合わせに２枚用いる
ことにより剥離の防止が可能なことを見出した。さらに
対向する一対のシート部材と２枚の架橋シート片との４
ケ所の接合を１回の高周波溶着操作で行う方法を見出
し、本発明に到達した。すなわち、本発明は、対向する
一対の熱溶着性シート部材が、２枚の熱溶着性シート片
から構成された断面Ｉ字型の架橋部材により溶着架橋接
合されてなるシート材の接合部、ならびに、対向する一
対の熱溶着性シート部材の間に第３の熱溶着性シート片
からなる断面Ｉ字型の架橋部材を接合するに当り、それ
ぞれ高さが架橋部の幅に、そして溶着面の幅が架橋部材
の溶着しろの幅にほぼ一致し、かつ溶着面の長さが少な
くとも架橋部の長さを有する一対の金属片に、２枚のシ
ート片からなる架橋部材を重ね合わせて挟持し、架橋部
材の溶着しろ部を両側に折り曲げ、この折り曲げ部に対
面するように該一対のシート部材を重ね合わせたものを
高周波溶着装置の電極間に保持して通電し、該一対のシ
ート部材と架橋部材の間に溶着部を形成せしめるシート
材の接合部の製造方法を要旨とするものである。In order to solve this problem, the present inventor has conducted research on a mechanism for peeling a joint between a pair of sheet members facing each other and a bridging member and a preventive measure thereof.
It has been found that peeling can be prevented by using two "worship" type crosslinked sheet pieces for spinal alignment. Further, a pair of sheet members facing each other and two cross-linked sheet pieces 4
The present invention has been accomplished by finding a method of joining a plurality of places by one high-frequency welding operation. That is, according to the present invention, a pair of heat-welding sheet members facing each other is welded and cross-linked by a cross-linking member having an I-shaped cross section composed of two heat-welding sheet pieces, and When joining a cross-linking member having an I-shaped cross section composed of a third heat-fusible sheet member between a pair of opposing heat-welding sheet members, the height is the width of the cross-linking portion, and A pair of metal pieces having a width substantially equal to the width of the welding margin of the bridging member and a length of the welding surface at least the length of the bridging portion are sandwiched by sandwiching the bridging member composed of two sheet pieces. , The welding margin portion of the bridging member is bent to both sides, and a pair of the sheet members superposed so as to face the bent portion is held between electrodes of a high-frequency welding device to conduct electricity, Form a weld between the bridging members Method for producing a junction Mel sheet material is intended to be subject matter of.
【０００６】以下、図面によって本発明を説明する。図
１は、本発明の接合部と比較例の接合部の断面説明図で
ある。一対の熱溶着性シート１、２の間の中央および左
寄りには、２枚の熱溶着性シート片から構成された断面
Ｉ字型の架橋部材３が溶着により架橋接合された状態が
示されている。一方、右寄りに示された架橋部は１枚の
熱溶着シート片からなる「拝み」接合の比較例である。
この一対の熱溶着性シート１、２の周縁部を密封し、内
部に加圧流体を導入すると、シート１、２は互いに外側
に向かって膨張しようとし、それを架橋部材３が一定の
間隔に保持する働きをする。接合部に作用する力は、右
寄りに図示された「拝み」接合の比較例の場合、Ｄの接
合面では引張り剪断力として働くが、Ｃにおいては接合
部をひきはがす方向に働く。剪断力の場合は理論上は接
合面全体に力が分散されるが、剥離力の場合は線に力が
集中し剪断力よりはるかに弱い力で剥離が起きることは
よく知られている。中央および左寄りに図示されている
断面Ｉ字型の接合部では、剥離力が働く部分Ａに別の接
合片を接合することによって力を引張り剪断力に換え、
強い力に耐えるようにしている。すなわち、２枚のシー
ト片を重ねて用い「拝み」接合を脊中合わせに構成する
ことにより、「拝み」接合の欠点である剥離を封止する
ことを可能にした。２枚のシート片は互いに接着されて
いなくてもよいが、表面のシートと２枚のシート片の３
者が接する部分は一体に接合されていることがより確実
な効果をもたらすので望ましい。The present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional explanatory view of a joint portion of the present invention and a joint portion of a comparative example. A state in which a cross-linking member 3 having an I-shaped cross section composed of two pieces of the heat-welding sheet is cross-linked and joined by welding is shown in the center and to the left between the pair of heat-welding sheets 1 and 2. There is. On the other hand, the cross-linking portion shown on the right side is a comparative example of "worship" joining composed of one piece of the heat-welded sheet.
When the peripheral edges of the pair of heat-welding sheets 1 and 2 are sealed and a pressurized fluid is introduced into the inside, the sheets 1 and 2 try to expand toward each other, and the bridging member 3 keeps them at a constant interval. Acts to hold. The force acting on the joint acts as a tensile shearing force on the joint surface of D in the case of the comparative example of the "worship" joint shown on the right side, but in C, it acts in the direction of peeling the joint. In the case of shearing force, the force is theoretically distributed over the entire joint surface, but in the case of peeling force, it is well known that the force concentrates on the line and peeling occurs with a force much weaker than the shearing force. In the joint having an I-shaped cross section shown in the center and leftward, the force is converted into a tensile shearing force by joining another joining piece to the portion A where the peeling force acts,
I try to endure a strong force. That is, by using two sheet pieces in an overlapping manner and constructing the "worship" joint in a spinal alignment, it is possible to seal the peeling, which is a defect of the "worship" joint. The two sheet pieces need not be adhered to each other, but the three of the surface sheet and the two sheet pieces
It is desirable that the portions contacted by the person are integrally joined, because this brings about a more reliable effect.
【０００７】本発明に使用できるシート部材は高周波に
より誘電発熱し、溶融する熱可塑性樹脂を少なくとも接
合する表面の主成分として有することが必要であり、代
表的なものとしては塩ビフイルムあるいは塩ビ被覆織物
などポリ塩化ビニル樹脂製品である。その他塩化ビニル
共重合体、エチレン酢酸ビニル共重合体、ポリ塩化ビニ
ル、ポリ弗化ビニリデン、ポリウレタンなども高周波溶
着が可能である。シート部材１と２は使用目的により同
種または異種のものが使用され、架橋部材３も目的に応
じて、樹脂シート、補強布入りシート、メッシュシート
などを用いることができる。架橋部材は隔壁として完全
に独立した空気袋を形成することも、また適当な開孔を
設けて気体等の流れを制御することもできる。後者は製
品をダクトとして利用する場合などに有用である。The sheet member usable in the present invention is required to have at least a thermoplastic resin which causes a dielectric heat generation by a high frequency and melts as a main component of the surface to be joined, and a typical example thereof is a vinyl chloride film or a vinyl chloride coating woven fabric. Etc. are polyvinyl chloride resin products. In addition, high frequency welding is also possible for vinyl chloride copolymer, ethylene vinyl acetate copolymer, polyvinyl chloride, polyvinylidene fluoride, polyurethane and the like. The sheet members 1 and 2 are the same or different depending on the purpose of use, and the cross-linking member 3 can also be a resin sheet, a sheet with a reinforcing cloth, a mesh sheet or the like depending on the purpose. The bridging member can form a completely independent air bladder as a partition wall, or can be provided with appropriate openings to control the flow of gas or the like. The latter is useful when the product is used as a duct.
【０００８】次に、上記の２枚の熱溶着性シート片から
構成された断面Ｉ字型の架橋部材を、対向する一対の熱
溶着性シート部材の間に架橋接合する方法に関する極め
て作業が容易で、効率のよい改良技術を図２、図３によ
り説明する。一対の熱溶着性シート１、２の間に、２枚
の導電性材料からなる溶着用治具４、４により重ねて挟
持された２枚の熱溶着性シート片からなる架橋部材３が
配置されている。溶着用治具はそれぞれ高さｈが架橋部
の幅に、そして溶着面の幅ｗが架橋部材の溶着しろの幅
にほぼ一致し、かつ溶着面の長さｌが少なくとも架橋部
の長さを有する一対の金属片であって、金属としては真
鋳、アルミニウムが一般に用いられるが、これらに限定
されない。一対の金属片によって２枚の熱溶着性シート
片を挟持するため、適当な固定手段を使用する。溶着用
治具を２対、あるいはそれ以上組合せて、一度の通電で
複数の架橋接合部を製造することも可能である。架橋部
材３の接合位置を高周波溶着装置の上部電極６の直下に
合わせ、上部電極を押し下げ通電することにより上下一
対のシート部材１、２と架橋部材３を構成する２枚のシ
ート片との間の溶着架橋接合が一度に完了する。２枚の
シート片相互の間にも架橋接合部の近傍では溶着が生じ
両者は一体化されるが、両者を前工程で予め接合してお
くこともできる。Next, it is extremely easy to carry out a work concerning a method of cross-linking and joining a cross-linking member having an I-shaped cross section composed of the above-mentioned two pieces of heat-fusion-bonding sheet between a pair of opposing heat-melting sheet members. Now, an efficient improvement technique will be described with reference to FIGS. Between the pair of heat-welding sheets 1 and 2, a bridging member 3 made of two heat-welding sheet pieces sandwiched by two welding jigs 4 and 4 made of a conductive material is placed. ing. In the welding jig, the height h is approximately equal to the width of the cross-linking portion, the width w of the welding surface is approximately equal to the width of the welding margin of the cross-linking member, and the length l of the welding surface is at least the length of the cross-linking portion. Of the pair of metal pieces that they have, as the metal, brass and aluminum are generally used, but the metal is not limited thereto. A suitable fixing means is used to sandwich the two heat-welding sheet pieces by the pair of metal pieces. It is also possible to manufacture a plurality of cross-linking joints by energizing once by combining two pairs of welding jigs or more. Between the pair of upper and lower sheet members 1 and 2 and the two sheet pieces constituting the bridging member 3 by aligning the joining position of the bridging member 3 directly below the upper electrode 6 of the high frequency welding device and pushing down the upper electrode to energize the sheet. The welding, cross-linking and joining are completed at once. Although welding also occurs between the two sheet pieces in the vicinity of the cross-linking joint portion, the both are integrated, but they can be joined in advance in the previous step.
【０００９】[0009]
【作用】本発明によれば、対向する一対の熱溶着性シー
ト部材の間に第３の熱溶着性シート片からなる架橋部材
を接合するに当り、従来のごとく１ケ所づつ熱溶着し、
またそのため長尺のシート部材を裏返すなどの操作を行
う必要がなく、一対のシート部材を重ねた状態のまま、
その間に溶着用治具で挟持したＩ字型の架橋部材を挿入
し、１回の高周波溶着操作で接合を終えることができ、
作業効率が著しく改善される。さらに１回の溶着操作で
複数の架橋部材を同時に接合することも可能である。ま
た、本発明の断面Ｉ字型架橋構造は剥離に対し強く、加
圧流体や重量のある粉粒体を充填する用途に好適であ
る。According to the present invention, in joining a bridging member composed of a third heat-welding sheet piece between a pair of heat-welding sheet members facing each other, heat-welding is performed one by one in the conventional manner,
Therefore, there is no need to perform an operation such as turning over the long sheet member, and with a pair of sheet members stacked,
The I-shaped bridging member sandwiched by the welding jig can be inserted in the meantime, and the joining can be completed by one high-frequency welding operation.
Work efficiency is significantly improved. Further, it is possible to simultaneously join a plurality of bridging members by one welding operation. Further, the cross-sectional I-shaped cross-linking structure of the present invention is strong against peeling and is suitable for the purpose of filling a pressurized fluid or a heavy powder or granular material.
【００１０】[0010]
【実施例】本発明によるエアマットの架橋部の接合の実
施例を以下に説明する。ポリエステルフィラメント織物
に軟質塩ビ樹脂を被覆した２枚のターポリンシート１、
２を高周波溶着装置の上下電極６、５の間に重ねて延展
する。同種のターポリンを長さ５００ｍｍ、幅１４０ｍ
ｍに裁断したものを２枚重ねて架橋部材３とする。長さ
５００ｍｍ、幅２０ｍｍの平面を上下両面に有し、高さ
９８ｍｍの真鋳製角材からなる溶着用治具４、４によっ
て架橋部材３の中央部を挟み、両端を左右に開いてお
く。同じものを２組用意し、これを前述の２枚のターポ
リンシート１、２の間の所定の接合予定位置に配置す
る。上部電極６を下げ圧着しつつ通電する。冷却後、上
部電極６を上げ、溶着用治具４を取り除き、上下のター
ポリンシートを図面の右方向に移動し次の溶着位置にセ
ットする。この操作をくり返し、１５０ｍｍ間隔で架橋
部を形成した。接合部の断面を図１の実施例として図示
した。EXAMPLE An example of joining the crosslinked portions of the air mat according to the present invention will be described below. Two tarpaulin sheets 1 in which a polyester filament woven fabric is coated with a soft vinyl chloride resin,
2 is overlapped and extended between the upper and lower electrodes 6 and 5 of the high frequency welding device. The same type of tarpaulin is 500 mm long and 140 m wide
Two pieces cut into m are stacked to form a bridging member 3. The cross-linking member 3 is sandwiched by the welding jigs 4 and 4 each having a flat surface with a length of 500 mm and a width of 20 mm on both the upper and lower sides and a height of 98 mm and made of true-cast square members, and both ends are left and right. Two sets of the same are prepared, and these are arranged at a predetermined joining position between the two tarpaulin sheets 1 and 2 described above. The upper electrode 6 is lowered and crimped to conduct electricity. After cooling, the upper electrode 6 is raised, the welding jig 4 is removed, and the upper and lower tarpaulin sheets are moved to the right in the drawing and set at the next welding position. This operation was repeated to form crosslinked portions at intervals of 150 mm. The cross section of the joint is shown as an example in FIG.
【００１１】[0011]
【発明の効果】本発明によれば、対向する一対の熱溶着
性シート部材の間に第３の熱溶着性シート片からなる架
橋部材を接合するに当り、従来のごとく１ケ所づつ熱溶
着し、またそのため長尺のシート部材を裏返すなどの操
作を行う必要がなく、一対のシ作で接合を終えることが
でき、作業効率が著しく改善される。また、本発明の断
面Ｉ字型の架橋部材は接合部の剥離強さが大で、高圧流
体や重量のある粉粒体を充填しても架橋接合部の破損が
生じにくい。According to the present invention, in joining a bridging member composed of a third heat-welding sheet piece between a pair of heat-welding sheet members facing each other, heat-welding is performed one by one in the conventional manner. Further, therefore, it is not necessary to perform an operation such as turning over the long sheet member, and the joining can be finished by a pair of work, and the working efficiency is remarkably improved. Further, the cross-linking member of the present invention having an I-shaped cross-section has a large peeling strength at the joint portion, and the cross-linking joint portion is unlikely to be damaged even when filled with a high-pressure fluid or a heavy powder or granular material.
【図１】 本発明による実施例および比較例の接合部の
断面図である。FIG. 1 is a sectional view of a joint portion of an example and a comparative example according to the present invention.
【図２】 本発明の方法を例示する説明図である。FIG. 2 is an explanatory diagram illustrating the method of the present invention.
【図３】 本発明の溶着用治具の説明図である。FIG. 3 is an explanatory view of a welding jig of the present invention.
１、２ シート部材 ３ 架橋部材 ４ 溶着用治具 ５ 下部電極 ６ 上部電極 ７ 作業台 1, 2 sheet member 3 bridging member 4 welding jig 5 lower electrode 6 upper electrode 7 workbench
Claims (2)
２枚の熱溶着性シート片から構成された断面Ｉ字型の架
橋部材により溶着架橋接合されてなるシート材の接合
部。1. A pair of heat-welding sheet members facing each other,
A joining portion of sheet materials which is welded and cross-linked by a cross-linking member having an I-shaped cross-section, which is composed of two heat-fusible sheet pieces.
に第３の熱溶着性シート片からなる断面Ｉ字型の架橋部
材を接合するに当り、それぞれ高さが架橋部の幅に、そ
して溶着面の幅が架橋部材の溶着しろの幅にほぼ一致
し、かつ溶着面の長さが少なくとも架橋部の長さを有す
る一対の金属片に、２枚のシート片からなる架橋部材を
重ね合わせて挟持し、架橋部材の溶着しろ部を両側に折
り曲げ、この折り曲げ部に対面するように該一対のシー
ト部材を重ね合わせたものを高周波溶着装置の電極間に
保持して通電し、該一対のシート部材と架橋部材の間に
溶着部を形成せしめるシート材の接合部の製造方法。2. When joining a cross-linking member having an I-shaped cross section composed of a third heat-welding sheet member between a pair of opposing heat-welding sheet members, the height of each cross-linking member is the width of the cross-linking portion. Then, a pair of metal pieces having a width of the welding surface substantially equal to the width of the welding margin of the bridging member and a length of the welding surface at least the length of the bridging portion are overlaid with the bridging member composed of two sheet pieces. It is sandwiched together, the welding margin portion of the bridging member is bent to both sides, and a pair of sheet members superposed so as to face the bending portion is held between the electrodes of the high-frequency welding device to energize the pair of sheet members. 1. A method for manufacturing a joined portion of sheet materials, wherein a welded portion is formed between the sheet member and the bridging member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083763A JPH06255005A (en) | 1993-03-04 | 1993-03-04 | Joint part of sheet material and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083763A JPH06255005A (en) | 1993-03-04 | 1993-03-04 | Joint part of sheet material and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06255005A true JPH06255005A (en) | 1994-09-13 |
Family
ID=13811624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5083763A Pending JPH06255005A (en) | 1993-03-04 | 1993-03-04 | Joint part of sheet material and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06255005A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009012476A3 (en) * | 2007-07-18 | 2010-03-18 | Rick Fowler | Insulating materials and methods of making the same |
| WO2015030419A1 (en) * | 2013-08-27 | 2015-03-05 | Ham Ui-Shin | Method and apparatus for welding 3d bellows, and bellows |
-
1993
- 1993-03-04 JP JP5083763A patent/JPH06255005A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009012476A3 (en) * | 2007-07-18 | 2010-03-18 | Rick Fowler | Insulating materials and methods of making the same |
| WO2015030419A1 (en) * | 2013-08-27 | 2015-03-05 | Ham Ui-Shin | Method and apparatus for welding 3d bellows, and bellows |
| RU2634883C2 (en) * | 2013-08-27 | 2017-11-07 | Ё-Син ХАМ | Method and device for welding 3d concrete burners and coating boilers |
| US10238217B2 (en) | 2013-08-27 | 2019-03-26 | Eui-Shin HAM | Method and apparatus for welding 3D bellows, and bellows |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4885820A (en) | Plastic hinge, hinged material, and method for hinging | |
| US3874963A (en) | Sonic bonding process | |
| US4393987A (en) | Superplastically formed structure and method of making | |
| JPS63224927A (en) | Laminating method for thermoplastic resin member | |
| JPH08216255A (en) | Production of pipe lining material | |
| WO2018205910A1 (en) | Fusion structure, inflated product having same, manufacturing method therefor, and rapidly produced inflated product having covering layer simultaneous positioned on and fixed to inflated body | |
| CA2167212A1 (en) | A method of joining reinforced thermoplastic pipes | |
| JPH0615212B2 (en) | Method for laminating thermoplastic resin member | |
| EP1463602B1 (en) | Welding material assembly with conductive flexible carrier sheet and method of welding tubular members | |
| US10926484B2 (en) | Seam forming system and method | |
| JPH06255005A (en) | Joint part of sheet material and its production | |
| CA3090953C (en) | Hierarchical honeycomb core with sandwich cell walls | |
| JPH08103957A (en) | Connecting method for sheet material | |
| JPH06246834A (en) | Joining method for sheet material | |
| JPH0462727B2 (en) | ||
| US4909170A (en) | Sailboat mast assembly | |
| JPH06170986A (en) | Manufacture of bag | |
| JPH0911365A (en) | Method for manufacturing large gusset square bottom bag | |
| JPH051456A (en) | Fixing construction for waterproof sheet and method thereof | |
| JPS6158724A (en) | Preparation of hot-melt wide film | |
| JPS5932615B2 (en) | How to join civil engineering nets | |
| JPH0129228Y2 (en) | ||
| JPS63303720A (en) | Joining method of sheet | |
| US20020119285A1 (en) | Process for making a seal and apparatus for sealing doublewide munufactured homes | |
| JPS60219376A (en) | Three-dimensional processing of film material in double curved film structure |