JP2000334837A - Method for welding joint of synthetic resin membrane piece in metal container, and production of metal container - Google Patents
Method for welding joint of synthetic resin membrane piece in metal container, and production of metal containerInfo
- Publication number
- JP2000334837A JP2000334837A JP11151613A JP15161399A JP2000334837A JP 2000334837 A JP2000334837 A JP 2000334837A JP 11151613 A JP11151613 A JP 11151613A JP 15161399 A JP15161399 A JP 15161399A JP 2000334837 A JP2000334837 A JP 2000334837A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- welding
- resin film
- metal
- piece
- 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.)
- Ceased
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
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は内面にフッ素樹脂
等の合成樹脂皮膜を有したステンレス鋼等の金属容器に
おける合成樹脂皮膜片接合部の溶接方法及びそのような
金属容器の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for welding a joint portion of a synthetic resin film piece in a metal container made of stainless steel or the like having a synthetic resin film such as a fluororesin on its inner surface, and a method for manufacturing such a metal container. is there.
【０００２】[0002]
【従来の技術】半導体製造工業においてフォトレジスト
等の薬液の収容に使用する金属容器として、ステンレス
により缶体を構成し、その内表面に耐薬液性の高いフッ
素樹脂（例えばポリテトラフルオロエチレン（例えば米
国のデュポン社によりテフロン等の登録商標名で市販の
もの））の皮膜（フィルム）を形成したものがある。フ
ッ素樹脂皮膜はゴム系（アクリル系）の接着材によって
缶体の内表面に接着されるようになっている。2. Description of the Related Art In a semiconductor manufacturing industry, as a metal container used for accommodating a chemical such as a photoresist, a can body is formed of stainless steel, and a fluorine resin having high chemical resistance (for example, polytetrafluoroethylene (for example, Some of them are commercially available from DuPont of the United States under the registered trademark of Teflon or the like. The fluororesin film is bonded to the inner surface of the can body with a rubber-based (acrylic) adhesive.
【０００３】缶体の入口の径はその胴体の径より相当小
さく、かつフッ素樹脂皮膜は厚さが２ミリメートルを超
えており、柔軟性のあるものではない。そのため、容器
の全内表面を被覆しうるのほどの大きさのフッ素樹脂皮
膜を一度に狭い容器内に導入して、接着作業することは
困難である。そこで、フッ素樹脂皮膜を容器の内面の一
部の個所の大きさに適合する大きさの細片に切断し、こ
のように切断されたフッ素樹脂皮膜片を容器内に導入
し、容器内の所定個所に接着してゆき、これを容器内周
全面にわたって適宜繰り返すことにより容器内周の全面
に皮膜を形成する。[0003] The diameter of the inlet of the can body is considerably smaller than the diameter of its body, and the thickness of the fluororesin film exceeds 2 mm, which is not flexible. Therefore, it is difficult to introduce a fluororesin film large enough to cover the entire inner surface of the container into a narrow container at a time to perform the bonding operation. Therefore, the fluororesin film is cut into small pieces having a size corresponding to the size of a part of the inner surface of the container, and the thus cut fluororesin film pieces are introduced into the container, and the predetermined amount in the container is set. The coating is formed on the entire surface of the inner periphery of the container by adhering to the location and repeating this process as appropriate over the entire inner periphery of the container.
【０００４】フッ素樹脂皮膜片を容器内周面に溶着した
だけではフッ素樹脂皮膜片間の接合部の隙間から漏洩が
起こるおそれがある。そこで、隣接するフッ素樹脂皮膜
片の接合部をフッ素樹脂よりなる溶接部によって溶接し
ていた。この溶接の最初の工程では、フッ素樹脂皮膜片
の突当端部はＶ字状にカットされ、これにより形成され
るＶ字状の溝にフッ素樹脂より成る円形断面の溶接棒が
熱風下で押し付けられ、これによりＶ字状の溝にフッ素
樹脂溶接棒が略面一となるように溶融充填される。第２
段階としては、フッ素樹脂溶接棒の溶融充填によって略
面一とされたフッ素樹脂皮膜片の突当端部に沿ってフッ
素樹脂よりなるリボンが熱風下で加圧される。これによ
り、フッ素樹脂皮膜片の接合部はＶ断面の突当部におけ
る円形断面の溶接棒による溶肉の部分とその上のリボン
による溶肉の部分との２段重ねで溶接されることにな
り、これにより所期のシール性を得るようにしていた。If the fluororesin film piece is simply welded to the inner peripheral surface of the container, there is a possibility that leakage may occur from the gap at the joint between the fluororesin film pieces. Therefore, the joining portion between the adjacent fluororesin film pieces is welded by a welding portion made of fluororesin. In the first step of this welding, the projecting end of the fluororesin film piece is cut into a V-shape, and a welding rod having a circular cross section made of fluororesin is pressed under hot air into the V-shaped groove formed thereby. As a result, the V-shaped groove is melt-filled with the fluororesin welding rod so as to be substantially flush. Second
As a step, a ribbon made of fluororesin is pressed under hot air along the abutting end of the fluororesin film piece that has been made substantially flush by the melt filling of the fluororesin welding rod. As a result, the joint portion of the fluororesin film pieces is welded in a two-stage overlap of a welded portion formed by a welding rod having a circular cross section and a welded portion formed by a ribbon thereon at the abutting portion having a V cross section. Thus, an intended sealing property is obtained.
【０００５】[0005]
【発明が解決しようとする課題】フッ素樹脂皮膜片の接
合部はＶ断面の突当部を略面一を呈するように充填する
円形断面の溶接棒による溶肉上にこれより幅の広いフッ
素樹脂リボンによる溶肉の部分が重ねられる構成となっ
ていた。そのため、フッ素樹脂リボンはその両側縁では
フッ素樹脂皮膜片に対して直角の段部をなしていた。そ
のため、この部位に、溶液中に微量含まれうる塵埃や不
純物の滞留・堆積が起こりやすくなっていた。そして、
一旦塵埃の堆積があると、洗浄により除去するのが困難
であった。即ち、容器は入口が狭まっているため、内部
に作業員が入って洗浄作業をするのは困難であり、外部
からの水流の勢いを頼った洗浄作業が主となるが、段部
に堆積している塵埃を外部からの水流の勢いのみで完全
に除去するのは困難であった。The joint portion of the fluororesin film piece is formed by welding a circular cross-section welding rod filling the abutting portion of the V cross-section so as to be substantially flush with the fluororesin. The configuration was such that the portions of the molten metal by the ribbon were overlapped. For this reason, the fluororesin ribbon forms a step perpendicular to the fluororesin film piece on both side edges. For this reason, dust and impurities that may be contained in a trace amount in the solution are likely to stay and accumulate in this portion. And
Once dust has accumulated, it has been difficult to remove it by cleaning. In other words, since the entrance of the container is narrow, it is difficult for a worker to enter inside and perform the cleaning work.The cleaning work mainly depends on the momentum of the water flow from the outside, but it is accumulated on the step. It has been difficult to completely remove the dust by the force of the external water flow.
【０００６】以上の問題点に鑑み、この発明はフッ素樹
脂皮膜片の接合部における不純物や塵埃などの滞留・堆
積を防止しうる合成樹脂皮膜片接合部溶接方法を提供す
ることを目的とする。[0006] In view of the above problems, an object of the present invention is to provide a method of welding a synthetic resin film piece at a joint portion of the fluorine resin film piece, which can prevent stagnation and accumulation of impurities and dust at the joint portion.
【０００７】[0007]
【課題を解決するための手段】この発明によれば、金属
缶体の内面に形成すべき合成樹脂皮膜を金属缶体の内面
の別々の部分に対応した複数片に分割し、このように分
割された合成樹脂皮膜片を金属缶体の内面の対応部分に
接着し、かつ分割された合成樹脂皮膜片間を溶接する方
法において、合成樹脂皮膜片の接合すべき端部を金属缶
体の内周に形成される凹部内に位置させ、かつ前記凹部
における合成樹脂片の接合すべき端部に沿って合成樹脂
を溶融充填することを特徴とする合成樹脂皮膜片接合部
溶接方法が提供される。According to the present invention, a synthetic resin film to be formed on the inner surface of a metal can is divided into a plurality of pieces corresponding to different portions of the inner surface of the metal can. In the method of bonding the separated synthetic resin film pieces to corresponding portions of the inner surface of the metal can body and welding the divided synthetic resin film pieces, the ends of the synthetic resin film pieces to be joined are placed inside the metal can body. A method for welding a synthetic resin film piece joint portion, wherein the synthetic resin film piece joint portion is located in a concave portion formed in the periphery and melt-filled with a synthetic resin along an end portion of the synthetic resin piece to be bonded in the concave portion. .
【０００８】合成樹脂片の接合部における合成樹脂の溶
融充填は金属缶体の内周に形成される凹部に沿って実施
されるため、溶融充填された合成樹脂（溶接棒又はリボ
ン）が被溶接部に対して段状（急峻な角度）を呈するこ
とはない。そのため、溶液中の不純物や塵埃の滞留・堆
積は起こり難く、水流の勢いでほぼ完璧な清掃状態を容
易に得ることができる効果がある。[0008] Since the fusion filling of the synthetic resin at the joint portion of the synthetic resin pieces is performed along the concave portion formed on the inner periphery of the metal can body, the synthetic resin (welding rod or ribbon) filled with the fusion resin is welded. There is no step (a steep angle) to the part. Therefore, retention and accumulation of impurities and dust in the solution are unlikely to occur, and there is an effect that an almost perfect cleaning state can be easily obtained by the force of the water flow.
【０００９】溶接棒又は溶接リボンによる溶接は凹部に
おける合成樹脂片の接合すべき端部に沿って溶融充填さ
れた合成樹脂が盛り上がるように行われるが、この合成
樹脂の漏り上がった部位を金属缶体の内周筒状面と実質
的に面一に至るまで切削することにより不純物や塵埃の
滞留・堆積の理想的な排除を実現することができる。[0009] Welding with a welding rod or a welding ribbon is carried out so that the synthetic resin melt-filled rises along the end of the synthetic resin piece to be joined in the concave portion. By cutting to a level substantially flush with the inner peripheral cylindrical surface of the body, ideal elimination of accumulation and accumulation of impurities and dust can be realized.
【００１０】この発明の別の態様によれば、金属缶体の
内面に形成すべき合成樹脂皮膜を金属缶体の内面の別々
の部分に対応した複数片に分割し、このように分割され
た合成樹脂皮膜片を金属缶体の内面の対応部分に接着
し、かつ分割された合成樹脂皮膜片間を溶接する方法に
おいて、合成樹脂皮膜片の一方の端部を他方の端部の上
方において重なるように位置させ、これらの重ねられた
端部間に帯状の合成樹脂を配置すると共に加熱下で加圧
することにより合成樹脂片の端部同士を溶接し、更に上
側に位置する合成樹脂片の縁部を面取りすることを特徴
とする金属容器における合成樹脂皮膜片接合部溶接方法
が提供される。According to another aspect of the present invention, the synthetic resin film to be formed on the inner surface of the metal can is divided into a plurality of pieces corresponding to different portions of the inner surface of the metal can, and thus divided. In a method of bonding a synthetic resin film piece to a corresponding portion of an inner surface of a metal can body and welding the divided synthetic resin film pieces, one end of the synthetic resin film piece overlaps above the other end. The synthetic resin strips are arranged between these overlapped ends, and the ends of the synthetic resin pieces are welded by pressing under heat, and the edges of the synthetic resin pieces located further above are positioned. A method for welding a synthetic resin film piece joint in a metal container characterized by chamfering a portion.
【００１１】この態様においては、相互に接着された合
成樹脂片における上側の合成樹脂片の縁部が面取りされ
ているため、不純物や塵埃の滞留・堆積を起こさせ易い
急峻な部位が解消される。[0011] In this aspect, since the edges of the upper synthetic resin piece in the synthetic resin pieces bonded to each other are chamfered, steep portions where impurities and dust are likely to accumulate and accumulate are eliminated. .
【００１２】この発明の別の態様によれば、金属缶体の
内面に合成樹脂皮膜を有した金属容器の製造方法であっ
て、金属缶体を構成する複数の部分及び金属缶体の前記
各部分に対応した形状の合成樹脂皮膜片を準備し、金属
缶体の胴部と底鏡部との接合部又は胴部と上鏡部の接合
部又はその付近にリブが曲折形成され、缶体の各部分及
びこれに対応した合成樹脂皮膜片に接着剤を塗布し、缶
体部分と合成樹脂皮膜片とをその接着剤塗布面同士で加
圧下で接触させることにより缶体部分と合成樹脂皮膜片
とをその接触面の全面にわたって接着し、その後に缶体
外部における缶体各部間の溶接と缶体内部での合成樹脂
皮膜片間の溶接を行い、合成樹脂皮膜片間の前記溶接に
際しては、胴部と底鏡部との間又は胴部と上鏡部との間
ではリブ内周に形成される凹部に沿って合成樹脂皮膜片
の端部間に合成樹脂を溶融充填し、その後充填された樹
脂の漏り上がった部位を面一となるように切削すること
を特徴とする金属容器の製造方法が提供される。According to another aspect of the present invention, there is provided a method of manufacturing a metal container having a metal can body having a synthetic resin film on an inner surface thereof, the method comprising the steps of: A synthetic resin film piece having a shape corresponding to the portion is prepared, and a rib is bent at or near the junction between the trunk and the bottom mirror or the junction between the trunk and the top mirror of the metal can body, and the can body is formed. An adhesive is applied to each part of the above and the corresponding synthetic resin film piece, and the can body part and the synthetic resin film piece are brought into contact with each other with the adhesive applied surfaces under pressure so that the can body part and the synthetic resin film The pieces are adhered over the entire contact surface, and thereafter, welding between the respective parts of the can body outside the can body and welding between the synthetic resin film pieces inside the can body are performed. Between the body and the bottom mirror or between the body and the top mirror, Manufacturing a metal container characterized in that a synthetic resin is melt-filled between the ends of a synthetic resin film piece along a concave portion to be formed, and thereafter, a leaked portion of the filled resin is cut so as to be flush. A method is provided.
【００１３】この方法によれば、缶体の各部においてそ
の内周に合成樹脂皮膜片を接着した状態で外周側での缶
体各部缶の金属溶接、次いで内周側での合成樹脂皮膜片
間の溶接をするに際し、合成樹脂皮膜片間の溶接は胴部
と底鏡部との間又は胴部と上鏡部との間では凹部に沿っ
てそこに溶融充填される合成樹脂（溶肉）が略面一とな
るように行われている。そのため、容器内周において合
成樹脂皮膜片の接合部に段部が存在せず、不純物や塵埃
の滞留・堆積を防止する効果が奏される。また、胴部の
両端のリブは金属缶体の補強となり、缶体の強度を高め
ることができるという副次的効果もある。According to this method, in each portion of the can body, the synthetic resin film piece is adhered to the inner periphery thereof, and the metal can is welded to each can of the can body on the outer peripheral side, and then between the synthetic resin film pieces on the inner peripheral side. In welding, the synthetic resin film pieces are welded between the body and the bottom mirror or between the body and the top mirror along the recess along the recess (synthetic resin). Is performed so as to be substantially flush. Therefore, there is no step at the joint of the synthetic resin film pieces on the inner periphery of the container, and the effect of preventing the accumulation and accumulation of impurities and dust is exhibited. In addition, the ribs at both ends of the body part serve to reinforce the metal can body, and have a secondary effect that the strength of the can body can be increased.
【００１４】この発明のこの態様において、合成樹脂皮
膜片間の溶接においては、リブに沿っていない部位では
溶接すべき端部同士を重ね合わせ、その間に帯状の合成
樹脂を配置すると共に加熱下で加圧することにより合成
樹脂片の端部同士を溶接し、更に上側に位置する合成樹
脂片の縁部を面取りする。このような面取りによりリブ
に沿っていない合成樹脂片接合部位においても、塵埃や
不純物の滞留・堆積を起こしうる段部を解消することが
できる。In this embodiment of the present invention, in welding between synthetic resin film pieces, ends to be welded are overlapped with each other at a portion not along the rib, and a belt-like synthetic resin is arranged therebetween and heated under heating. By pressurizing, the ends of the synthetic resin pieces are welded to each other, and the edges of the synthetic resin pieces located above are chamfered. By such chamfering, even at a synthetic resin piece joining portion that is not along the rib, it is possible to eliminate a step portion that may cause accumulation and accumulation of dust and impurities.
【００１５】[0015]
【発明の実施の形態】図１は金属容器を構成するステン
レス缶体１０の溶接前の分離された各部を示しており、
ステンレス缶体１０は胴部１２、底鏡部１４、上鏡部１
６及び蓋部１８よりなる。底鏡部１４にはスカート部２
０が既に溶接されている。上鏡部１６はその上端のフラ
ンジ部16-1に円周方向に離間した複数のねじ孔２１を有
している。一方、蓋部１８は上鏡部１６のフランジ部16
-1のねじ孔２１と芯合した位置に開口２４を有し、かつ
ノズル装着用の開口２９を有している。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows each part of a stainless steel can body 10 constituting a metal container which is separated before welding.
The stainless steel can 10 has a body 12, a bottom mirror 14, and an upper mirror 1
6 and a lid 18. The skirt 2 is attached to the bottom mirror 14.
0 is already welded. The upper mirror portion 16 has a plurality of screw holes 21 circumferentially separated from each other in a flange portion 16-1 at an upper end thereof. On the other hand, the lid 18 is a flange 16 of the upper mirror 16.
An opening 24 is provided at a position aligned with the -1 screw hole 21 and an opening 29 for mounting a nozzle.
【００１６】胴部１２はその上下の端縁付近が円周方向
に沿って外に凸をなすように断面Ｕ字状に曲折されるこ
とによりリブ３１を形成している。従って、胴部１２は
リブ３１に沿って内周側に凹部１９を形成している。後
述の別の実施形態(図２１)のように胴部１２と底鏡部１
４との間又は胴部１２と上鏡部１６との間にまたがって
リブを形成するようにしてもよい。The ribs 31 are formed by bending the body portion 12 in a U-shaped cross section so that the upper and lower edges thereof protrude outward along the circumferential direction. Therefore, the body portion 12 has the concave portion 19 formed on the inner peripheral side along the rib 31. As in another embodiment (FIG. 21) described later, the body 12 and the bottom mirror 1
4 or between the body portion 12 and the upper mirror portion 16.
【００１７】この発明の実施の形態では缶体１０の上述
した胴部１２、底鏡部１４、上鏡部１６及び蓋部１８の
各々にロールから各部に適合した形状に切り出されたフ
ッ素樹皮膜片が接着され、その後、外周側での胴部１
２、底鏡部１４、上鏡部１６間のステンレスプラズマ溶
接及び内周側での膜状フッ素樹脂皮膜片間の溶接が行な
われ、かつ蓋部１８が取り付けられ、金属容器として完
成するようにされる。このような金属容器の完成までを
以下順を追って説明する。In the embodiment of the present invention, the above-mentioned body 12, bottom mirror 14, upper mirror 16 and lid 18 of the can body 10 are each made of a fluorocarbon film cut out from a roll into a shape suitable for each part. The pieces are glued and then the body 1 on the outer circumference
2. Stainless steel plasma welding between the bottom mirror part 14 and the top mirror part 16 and welding between the film-like fluororesin film pieces on the inner peripheral side are performed, and the lid part 18 is attached to complete the metal container. Is done. The steps up to the completion of such a metal container will be described in the following order.
【００１８】ステンレス製の各部12, 14, 16, 18につい
てフッ素樹脂皮膜片が貼付される面はショットブラスト
処理される。ショットブラスト処理により表面の酸化皮
膜が除去され、ステンレス製の各部12, 14, 16, 18とフ
ッ素樹脂皮膜片との接着性の改善を図ることができる。The surfaces of the stainless steel parts 12, 14, 16, and 18 to which the fluororesin film pieces are adhered are shot blasted. The oxide film on the surface is removed by the shot blast treatment, and the adhesion between the stainless steel parts 12, 14, 16, and 18 and the fluororesin film piece can be improved.
【００１９】次に、各部12, 14, 16, 18に対するフッ素
樹脂皮膜片の接着工程について説明する。まず、胴部１
２へのフッ素樹脂皮膜の形成について説明すると、フッ
素樹脂膜状素材は、ポリテトラフルオロエチレンをベー
スとする、例えば米国デュポン社から販売されているポ
リフロン(登録商標)であり、ロール状に巻かれた状態
（厚さ2.4〜3.0ミリメートル程度）でメーカーから供給
される。ロールから缶体各部12, 14, 16, 18の要被覆部
の形状に合わせて切り出しが行なわれる。図２におい
て、胴部１２の内周の被覆のためロールから切り出され
たフッ素樹脂皮膜片を符号２２によって表している。フ
ッ素樹脂皮膜片２２はその幅Ｗは胴部１２における上下
のリブ３１間に略等しくなるようにされ（図３参照）、
また長さＬは胴部１２の内周長より幾分長くなるように
される。Next, the process of bonding the fluororesin film pieces to the respective parts 12, 14, 16, and 18 will be described. First, the torso 1
Explaining the formation of the fluororesin film on No. 2, the fluororesin film material is based on polytetrafluoroethylene, for example, Polyflon (registered trademark) sold by DuPont, USA, and is wound in a roll. Supplied by the manufacturer in a state of being thin (about 2.4 to 3.0 mm thick). The roll is cut out in accordance with the shape of the required portion of the can body parts 12, 14, 16, and 18 to be covered. In FIG. 2, a fluororesin film piece cut out from a roll for covering the inner periphery of the body 12 is denoted by reference numeral 22. The width W of the fluororesin film piece 22 is made substantially equal between the upper and lower ribs 31 in the body 12 (see FIG. 3),
The length L is set to be slightly longer than the inner peripheral length of the body 12.
【００２０】次ぎに、フッ素樹脂皮膜片２２の表面全体
にゴム系接着剤（例えば小西株式会社のＧ１７等）が刷
毛２３等を使用することにより塗布され、一方、胴部１
２の内周にも接着剤が塗布される。胴部１２の内周の塗
布においては、その両端からフランジ３１を少し過ぎる
程度の適当な長さの接着剤を塗布しない帯状の領域を残
しておく。そして、接着剤が完全に乾燥するまで放置す
る。Next, a rubber-based adhesive (for example, G17 of Konishi Co., Ltd.) is applied to the entire surface of the fluororesin film piece 22 by using a brush 23 or the like.
An adhesive is also applied to the inner circumference of the second. In the application of the inner periphery of the body portion 12, a band-like region of an appropriate length, which is a little longer than the flange 31 from both ends thereof, where no adhesive is applied is left. Then, it is left until the adhesive is completely dried.
【００２１】次ぎに、フッ素樹脂皮膜片２２と胴部１２
との接着工程について説明すると、接着剤が乾燥された
フッ素樹脂皮膜片２２は接着剤層を外側にして筒状に丸
められて胴部１２に挿入される。胴部１２はバーナなど
によって加熱され、接着剤が軟化する温度（小西株式会
社のＧ１７の場合はおおよそ８０℃）になっている。そ
して、筒状に丸められたフッ素樹脂皮膜片２２は、準備
的な作業として、手持ちのローラによって胴部１２の内
面に押しつけられ、胴部１２とフッ素樹脂皮膜片２２と
の間は軽く接着した状態とされる。この仮接着状態では
フッ素樹脂皮膜片２２の幅方向の両端は胴部１２のリブ
３１の部位まで延びている（図３参照）。また、フッ素
樹脂皮膜片２２の長さ方向の両端22-1, 22-2は幾分重ね
られた状態になっている（図５（イ）を参照）。Next, the fluororesin film piece 22 and the body 12
When the adhesive step is explained, the fluororesin film piece 22 from which the adhesive has been dried is rolled into a cylindrical shape with the adhesive layer facing outward and inserted into the body 12. The body 12 is heated by a burner or the like, and is at a temperature at which the adhesive softens (about 80 ° C. in the case of G17 of Konishi Co., Ltd.). Then, as a preliminary operation, the fluororesin film piece 22 rounded into a cylindrical shape was pressed against the inner surface of the body 12 by a hand-held roller, and the body 12 and the fluororesin film piece 22 were lightly bonded. State. In this temporary bonding state, both ends in the width direction of the fluororesin film piece 22 extend to the rib 31 of the body 12 (see FIG. 3). Further, both ends 22-1 and 22-2 in the longitudinal direction of the fluororesin film piece 22 are slightly overlapped (see FIG. 5A).
【００２２】接着剤層には塗り斑などに原因して気泡が
多数残っており、これを排除する必要がある。次ぎに、
一対のローラを使用した加圧装置によってフッ素樹脂皮
膜片２２の接着剤塗布層を胴部１２の表面の接着塗布層
に密着させる。この加圧装置は図３に示すように一対の
加圧ローラ２５及び２６から構成される。駆動側の加圧
ローラ２５は固定であり、両端は固定の軸受部によって
軸支されている。その回転軸25-1は一端において駆動電
動機２７に連結され、電動機２７からの回転運動が加圧
ローラ２５に伝達されるようになっている。ローラ２６
は従動側であり、両端における軸受２８（一端のものの
み図示している）によってフリーに回転可能に軸支され
ており、かつ軸受はフレームに対して上下にスライド可
能になっている。Many bubbles remain in the adhesive layer due to spots and the like, and it is necessary to eliminate them. Next,
The adhesive applied layer of the fluororesin film piece 22 is brought into close contact with the adhesive applied layer on the surface of the body 12 by a pressing device using a pair of rollers. This pressure device is composed of a pair of pressure rollers 25 and 26 as shown in FIG. The driving-side pressure roller 25 is fixed, and both ends are supported by fixed bearings. The rotating shaft 25-1 is connected at one end to a drive motor 27, and the rotational motion from the motor 27 is transmitted to the pressure roller 25. Roller 26
Is a driven side, is freely rotatably supported by bearings 28 (only one end is shown) at both ends, and the bearing is slidable up and down with respect to the frame.
【００２３】従動ローラ２６は駆動側加圧ローラ２５に
対して持ち上げること又は回動させることが可能になっ
ており、この状態でローラ25, 26間に、その内面にフッ
素樹脂皮膜片２２を予備的に接着した状態の胴部１２が
導入され、従動側加圧ローラ２６が図３に示す本来の位
置に戻される。その結果、胴部１２及びフッ素樹脂皮膜
片２２はローラ25, 26間で挟着される。このとき、フッ
素樹脂皮膜片２２は従動側加圧ローラ２６の自重に応じ
た力で胴部１２の内表面に押し付けられる。図４も参
照。The driven roller 26 can be lifted or rotated with respect to the driving pressure roller 25. In this state, the fluororesin film piece 22 is preliminarily provided on the inner surface between the rollers 25 and 26. The body 12 in a state of being adhered is introduced, and the driven pressure roller 26 is returned to the original position shown in FIG. As a result, the body 12 and the fluororesin film piece 22 are sandwiched between the rollers 25 and 26. At this time, the fluororesin film piece 22 is pressed against the inner surface of the body 12 by a force corresponding to the weight of the driven pressure roller 26. See also FIG.
【００２４】前述のように胴部１２は接着剤が軟化する
程度の温度に加熱されており、この状態において電動機
２７からの回転が駆動側加圧ローラ２５に伝えられると
（矢印Ｆ）、フッ素樹脂皮膜片２２は従動ローラ２６の
自重により胴部１２に母線全長に沿って押しつけられな
がら胴部１２及びフッ素樹脂皮膜片２２は矢印Ｇのよう
に円周方向に移動される。そのため、胴部１２とフッ素
樹脂皮膜片２２との間のまだ柔らかい接着剤層は均等に
ならすことができかつ接着剤の塗布斑によって接着剤層
に気泡が含まれてもこれを完全に排出することができ
る。即ち、接着剤層に気泡が存在してもフッ素樹脂皮膜
片２２は母線全長にわたって熨し作用を受け、そのため
気泡は回転方向の下流側（図５の（イ）に示すようにフ
ッ素樹脂皮膜片２２の重ねられた端部22-1, 22-2の側）
に順次送られて行き、回転を何回か繰り返すことにより
接着剤層は完全に均等にならされ、最終的に気泡を完全
に排除した状態に追いこむことができる。この間、接着
剤は固化し、フッ素樹脂皮膜片２２は胴部１２の内面に
接着した状態となる。フッ素樹脂皮膜片２２が胴部１２
の内面に接着した状態は図１３にも示されている。As described above, the body 12 is heated to a temperature at which the adhesive is softened. In this state, when the rotation from the electric motor 27 is transmitted to the drive side pressure roller 25 (arrow F), the fluorine is While the resin film piece 22 is pressed against the body 12 along the entire length of the generatrix by the own weight of the driven roller 26, the body 12 and the fluororesin film piece 22 are moved in the circumferential direction as shown by the arrow G. Therefore, the still soft adhesive layer between the body portion 12 and the fluororesin film piece 22 can be leveled evenly, and even if bubbles are included in the adhesive layer due to unevenness of application of the adhesive, this is completely discharged. be able to. That is, even if air bubbles are present in the adhesive layer, the fluororesin film piece 22 is subjected to a squeezing action over the entire length of the generatrix, so that the air bubbles are moved downstream in the rotational direction (as shown in FIG. 5A). 22 overlapped ends 22-1, 22-2 side)
By repeating the rotation several times, the adhesive layer is completely equalized, and finally, the air bubbles can be completely eliminated. During this time, the adhesive is solidified, and the fluororesin film piece 22 is adhered to the inner surface of the body 12. The fluororesin film piece 22 is
13 is also shown in FIG.
【００２５】加圧装置において、駆動側加圧ローラ２５
及び従動ローラ２６は表面に弾性体（ゴム）を被覆して
いる。この弾性により、接着剤層の密着工程の実施中に
おける表面凹凸があってもこれを乗り越えることができ
る。In the pressing device, the driving side pressing roller 25
The driven roller 26 has an elastic body (rubber) coated on its surface. Due to this elasticity, even if there is surface unevenness during the execution of the adhesive layer adhesion step, it can be overcome.
【００２６】次に、胴部１２の内周に接着されたフッ素
樹脂皮膜片２２の長さ方向における重ね合わされた両端
22-1, 22-2の溶接について図５を参照にして説明する
と、フッ素樹脂皮膜片２２の長さ方向における第１の端
部22-1は胴部１２の内周に前記のように接着されてい
る。一方、図５の（イ）に示すように、フッ素樹脂皮膜
片２２の長さ方向における第２の端部22-2は第１の端部
22-2上に重ねられている。第１の端部22-2上の第２の端
部22-2の長さとしては数センチメートル程度が好適であ
り、この部分には接着剤は塗布されていない。Next, both ends overlapped in the longitudinal direction of the fluororesin film piece 22 adhered to the inner periphery of the body 12.
The welding of 22-1 and 22-2 will be described with reference to FIG. 5. The first end 22-1 in the longitudinal direction of the fluororesin film piece 22 is bonded to the inner periphery of the body 12 as described above. Have been. On the other hand, as shown in FIG. 5A, the second end 22-2 in the longitudinal direction of the fluororesin film piece 22 is the first end.
It is overlaid on 22-2. The length of the second end 22-2 on the first end 22-2 is preferably about several centimeters, and no adhesive is applied to this portion.
【００２７】図５の（ロ）に示すように、相互に重ねら
れた第１の端部22-2と第２の端部22-2との間にフッ素樹
脂皮膜片２２の溶接用のフッ素樹脂製溶接リボン３３
（例えば、商品名ネオフロン(登録商標)として市販され
ているもの）が配置される。そして、６００℃といった
熱風Ｆをフッ素樹脂皮膜片端部22-1, 22-2とフッ素樹脂
性溶接リボン３３との挟着部に吹きつけながら同等の温
度に加熱した加熱ローラＲによって加圧を行う。その結
果、フッ素樹脂皮膜片端部22-1, 22-2間においてフッ素
樹脂性溶接リボン３３が溶融し、フッ素樹脂皮膜片端部
22-1, 22-2間の溶接が行われる。As shown in FIG. 5B, the fluorine resin film piece 22 is welded between the first end 22-2 and the second end 22-2 which are overlapped with each other. Resin welding ribbon 33
(For example, commercially available under the trade name NEOFLON (registered trademark)). Then, pressure is applied by a heating roller R heated to the same temperature while blowing hot air F such as 600 ° C. onto the sandwiched portion between the fluororesin film one end portions 22-1, 22-2 and the fluororesin welding ribbon 33. . As a result, the fluororesin welding ribbon 33 is melted between the one ends 22-1, 22-2 of the fluororesin film, and the one end of the fluororesin film is melted.
Welding between 22-1 and 22-2 is performed.
【００２８】最後に、図５の(ハ)で示すように、上側に
位置しているフッ素樹脂皮膜片２２の長さ方向における
第２の端部22-2の面取りがaのように行われる。面取り
によって、フッ素樹脂皮膜片端部22-2の接合部における
急峻な部分がならされ、容器への薬液を収納時にこの部
分おける塵埃や不純物の滞留・堆積が起こりにくくなる
上、水流の勢いによる塵埃や不純物の清掃を容易に行う
ことができるようになる効果がある。Finally, as shown in FIG. 5 (c), chamfering of the second end 22-2 in the longitudinal direction of the fluororesin film piece 22 located on the upper side is performed as shown in a. . Due to the chamfering, the steep portion at the junction of the one end 22-2 of the fluororesin film is smoothed, so that when the chemical solution is stored in the container, dust and impurities in this portion are less likely to accumulate and accumulate, and the dust due to the force of the water flow. This has the effect that cleaning of impurities and impurities can be performed easily.
【００２９】次ぎに、底鏡部１４へのフッ素樹脂膜状素
材の接着について説明すると、図６において、３０は、
底鏡部１４の皮膜形成部の形状に合わせて、フッ素樹脂
膜状素材のロールから切り出された円形の切片を示して
いる。フッ素樹脂皮膜片３０の直径は同片３０を図７に
示すように底鏡部１４の内面に当てがったときに、底鏡
部１４の上縁部から幾分の長さの食み出し領域が残るよ
うな直径に選定されている。底鏡部１４の内面にもゴム
系接着剤が塗布されるが、接着剤の塗布領域はフッ素樹
脂皮膜片３０により被覆される底鏡部１４の上端縁部か
ら適当な長さの帯状領域Ｔを除いた部分である。Next, the adhesion of the fluororesin film material to the bottom mirror section 14 will be described. In FIG.
A circular section cut out from a roll of a fluororesin film material according to the shape of the film forming portion of the bottom mirror portion 14 is shown. The diameter of the fluororesin film piece 30 is such that when the piece 30 is applied to the inner surface of the bottom mirror portion 14 as shown in FIG. The diameter is selected so that the area remains. A rubber-based adhesive is also applied to the inner surface of the bottom mirror 14, and the adhesive is applied to a band-like region T of an appropriate length from the upper end edge of the bottom mirror 14 covered with the fluororesin film piece 30. Is the part excluding.
【００３０】図８は湾曲面上にフッ素樹脂皮膜を密着さ
せるためのローラがけ装置を概略的に示している。即
ち、この装置は筒状の支持部材３２と、支持部材３２に
対して摺動自在に収容されるロッド３４と、ロッド３４
の先端に回転可能に取り付けられるローラ３６と、スプ
リング３８とから構成される。支持部材３５はその上端
がピン４０によって図示しないフレームに回転可能に軸
支されており、支持部材３５は直立面内において揺動可
能となっている。ローラ３６はその回転中心は支持部材
３５の揺動面に平行となるように配置されている。更
に、支持部材３５は耳部４２を備えており、この耳部４
２には手動又は動力型のレバー（図示しない）が連結さ
れ、このレバーの操作によって密着工程における支持部
材３５の位置及び速度を制御することができるようにな
っている。FIG. 8 schematically shows a roller driving device for adhering a fluororesin film on a curved surface. That is, the apparatus includes a cylindrical support member 32, a rod 34 slidably received in the support member 32, and a rod 34.
And a spring 38 rotatably attached to the tip of the roller. The upper end of the support member 35 is rotatably supported by a frame (not shown) by a pin 40, and the support member 35 can swing in an upright plane. The roller 36 is arranged so that its rotation center is parallel to the swinging surface of the support member 35. Further, the support member 35 has an ear 42, and the ear 4
A manual or power-type lever (not shown) is connected to 2, and by operating this lever, the position and speed of the support member 35 in the close contact process can be controlled.
【００３１】次ぎに、図８の装置によるローラがけ工程
について図７も参照して説明すると、接着剤の乾燥後に
フッ素樹脂皮膜片３０はその接着剤塗布面を下向きにし
て底鏡部１４の内面にあてがう。バーナー等によって底
鏡部１４を加熱することによりその温度を接着剤が軟化
する８０℃程度の温度とする。そして、準備作業として
人手によるならしが行われる。即ち、手持ちローラによ
ってフッ素樹脂皮膜片３０を底鏡部１４の内面に押しつ
け、フッ素樹脂皮膜片３０が底鏡部１４の内周の凹面形
状に倣うようにする。この準備作業後に図８の装置によ
る密着工程が実施される。密着工程の開始時には図示し
ない制御レバーの操作によってローラは２点鎖線３６´
にて示すように底鏡部１４の凹面の直立中心線４４上に
位置している。そして、スプリング３８による弾性力下
でローラ３６はフッ素樹脂皮膜片３０を底鏡部１４の内
面に押し付けられる。そして、底鏡部１４を載置するテ
ーブル（図示しない）を回転させることにより底鏡部１
４は中心線４４の周りで矢印Ｆ（図７も参照）のように
回転せしめられる。このように底鏡部１４に回転を加え
つつ、レバーの操作によって耳部４２に矢印Ｇのように
引張力が加えられ、その結果、ピン４０によって上端が
軸支された支持部材３２は直立面（紙面を含む面）にお
いて矢印Ｈのように半径外方に向けて徐々に移動され
る。弾性力を受けたローラ３６によりフッ素樹脂皮膜片
３０を底鏡部内面に一定の力で押し付けながら、底鏡部
１４を直立中心線４４の周りで回転させかつローラ３６
を中心から外方に緩慢に移動させて行くことにより、底
鏡部１４とフッ素樹脂皮膜片３０との接触面間における
接着剤は均一にならされ、そこに含まれていた気泡はロ
ーラ３６の移動につれて徐々に半径外方へらせん状に送
られて行き、最終的には外部に排出される。そのため、
底鏡部１４とフッ素樹脂皮膜片３０との接触面間の接着
剤層中において気泡を完全に排除した状態に追い込むこ
むことができる。この間において接着剤は固化が進行さ
れ、フッ素樹脂皮膜片３０は底鏡部表面に接着した状態
となる。Next, a description will be given of the roller application process by the apparatus shown in FIG. 8 with reference to FIG. 7 as well. Apply to The bottom mirror 14 is heated by a burner or the like to a temperature of about 80 ° C. at which the adhesive softens. Then, manual preparation is performed as preparation work. That is, the fluororesin film piece 30 is pressed against the inner surface of the bottom mirror part 14 by a hand-held roller so that the fluororesin film piece 30 follows the concave shape of the inner periphery of the bottom mirror part 14. After this preparatory work, a close contact process is performed by the apparatus shown in FIG. At the start of the close contact process, the roller is moved by a two-dot chain line 36 'by operating a control lever (not shown).
As shown by, it is located on the upright center line 44 of the concave surface of the bottom mirror portion 14. Then, the roller 36 presses the fluororesin film piece 30 against the inner surface of the bottom mirror section 14 under the elastic force of the spring 38. Then, by rotating a table (not shown) on which the bottom mirror section 14 is placed, the bottom mirror section 1 is rotated.
4 is rotated about a center line 44 as indicated by arrow F (see also FIG. 7). As described above, while the bottom mirror portion 14 is being rotated, a pulling force is applied to the ear portion 42 as indicated by an arrow G by operating the lever, and as a result, the support member 32 whose upper end is pivotally supported by the pin 40 becomes an upright surface. (The surface including the paper surface) is gradually moved radially outward as indicated by an arrow H. While pressing the fluororesin film piece 30 against the inner surface of the bottom mirror section with a constant force by the roller 36 receiving the elastic force, the bottom mirror section 14 is rotated around the upright center line 44 and the roller 36 is rotated.
Is gradually moved outward from the center, the adhesive between the contact surfaces between the bottom mirror portion 14 and the fluororesin film piece 30 is made uniform, and the air bubbles contained therein are removed by the roller 36. As it moves, it is gradually spiraled outward from the radius, and finally discharged to the outside. for that reason,
In the adhesive layer between the contact surface between the bottom mirror portion 14 and the fluororesin film piece 30, it can be driven into a state in which bubbles are completely eliminated. During this time, the adhesive is solidified, and the fluororesin film piece 30 is adhered to the bottom mirror surface.
【００３２】以上説明のようなスプリング３８の代り
に、エアシリンダ又は液圧シリンダを使用することによ
り空気圧又は液圧などの流体圧下でローラ３６による加
圧を行うようにしてもよい。Instead of the spring 38 described above, an air cylinder or a hydraulic cylinder may be used to press the roller 36 under fluid pressure such as air pressure or hydraulic pressure.
【００３３】次ぎは、上鏡部１６へのフッ素樹脂皮膜の
形成について図９及び図１０を参照して説明する。上鏡
部１６の内面には図６で説明した底鏡部１４の場合と同
様にゴム系接着剤が塗布される。図９の(イ)において、
上鏡部１６にはその内面に接着剤の塗布・乾燥が行なわ
れる。接着剤の塗布及び乾燥は上鏡部１６のフランジ部
16-1の内面及び上面においても行なわれる。一方、ロー
ルから引き出されるフッ素樹脂皮膜から中心に孔を有し
た円形の切片４６が切り出される。そして、フッ素樹脂
皮膜片４６の下面に接着剤が塗布・乾燥される。Next, the formation of a fluororesin film on the upper mirror section 16 will be described with reference to FIGS. A rubber-based adhesive is applied to the inner surface of the upper mirror 16 as in the case of the bottom mirror 14 described with reference to FIG. In FIG. 9A,
An adhesive is applied and dried on the inner surface of the upper mirror section 16. The application and drying of the adhesive are performed on the flange of the upper mirror 16.
This is also performed on the inner and upper surfaces of 16-1. On the other hand, a circular piece 46 having a hole at the center is cut out from the fluororesin film pulled out from the roll. Then, an adhesive is applied to the lower surface of the fluororesin film piece 46 and dried.
【００３４】次ぎの段階では図９の(ロ)で示すようにフ
ッ素樹脂皮膜片４６はその接着剤塗布面が上鏡部１６の
接着材を塗布した内周面に当てがわれる。そして、フラ
ンジ部16-1の中心開口より皮膜の厚み分小さい外径の中
心インサート５２（接着剤を軟化させるための８０℃程
度の所定温度に加熱されている）が上方よりフッ素樹脂
皮膜片４６を介してフランジ部16-1の中心開口に押しこ
まれる。その結果、フッ素樹脂皮膜片４６はフランジ部
16-1の中心開口の内周に沿って延びるように変形を受け
ている。次ぎに、中心インサート５２にぴったりと嵌合
される内径のフランジ付筒状外側インサート５４（これ
も接着剤を軟化させるための８０℃程度の所定温度に加
熱されている）が下側より中心インサート５２に挿入さ
れる。図１０の(ハ)に示すように、外側インサート５４
のフランジ部54-1はフッ素樹脂皮膜片４６を圧潰し、切
片４６の圧潰された部分が上鏡部１６の内周に密接され
る。その間において接着剤は固化し、フッ素樹脂皮膜は
完全に接着された状態となる。In the next stage, as shown in FIG. 9 (b), the surface of the fluororesin film 46 applied with the adhesive is applied to the inner peripheral surface of the upper mirror 16 on which the adhesive is applied. Then, the center insert 52 having an outer diameter smaller than the center opening of the flange portion 16-1 by the thickness of the film (heated to a predetermined temperature of about 80 ° C. for softening the adhesive) is applied from above to the fluorine resin film piece 46. Through the center opening of the flange portion 16-1. As a result, the fluororesin film piece 46 is
It is deformed to extend along the inner circumference of the center opening of 16-1. Next, a cylindrical outer insert 54 with a flange having an inside diameter that fits snugly into the center insert 52 (also heated to a predetermined temperature of about 80 ° C. to soften the adhesive) is inserted from below the center insert 52. 52. As shown in FIG. 10C, the outer insert 54
The flange portion 54-1 crushes the fluororesin film piece 46, and the crushed portion of the piece 46 is brought into close contact with the inner periphery of the upper mirror portion 16. During that time, the adhesive solidifies, and the fluororesin film is completely bonded.
【００３５】このように、上鏡部１６のフランジ部16-1
へのフッ素樹脂皮膜片４６の接着が行なわれた後、フッ
素樹脂皮膜片４６の上鏡部１６内周面への接着が図６〜
図８で説明した底鏡部１２へのフッ素樹脂皮膜片３０の
接着と同様に実施される。即ち、フッ素樹脂皮膜片４６
は、上鏡部１６の凹面に合わせたとき、その拡開縁部か
ら幾分食み出すような大きさとなっている。上鏡部１６
を８０℃程度に加熱しながら、手動のローラによってフ
ッ素樹脂皮膜片４６が上鏡部１６の内周の凹面形状に倣
うようにする。そして、図１０の(ニ)で示すようにフラ
ンジ部16-1を下にして上鏡部１６は回転テーブル５８上
に載置され、回転テーブル５８をその直立中心線４４で
回転させながら、弾性力下でローラ３６によりフッ素樹
脂皮膜片４６の外周部を上鏡部１６内面に対して加圧し
かつローラ３６を中心側より半径外方に移動させて行
く。そのため、上鏡部１６とフッ素樹脂皮膜片４６の外
周部との接触面間における接着剤は均一にならされ、そ
こに含まれていた気泡はローラ３６の移動につれて徐々
に半径外方へ送られて行き、最終的には外部に排出され
る。そのため、上鏡部１６とフッ素樹脂皮膜片４６との
接触面間における接着剤層中において気泡を完全に排除
した状態に追い込むこむことができる。この間、接着剤
が進行し、フッ素樹脂皮膜片４６は上鏡部表面に接着し
た状態となる。As described above, the flange portion 16-1 of the upper mirror portion 16
After the bonding of the fluororesin film piece 46 to the inner surface of the upper mirror portion 16 of the fluororesin film piece 46 is performed as shown in FIGS.
The bonding is performed in the same manner as the bonding of the fluororesin film piece 30 to the bottom mirror 12 described with reference to FIG. That is, the fluorine resin film piece 46
Has a size such that when it is fitted to the concave surface of the upper mirror portion 16, it slightly protrudes from the expanded edge portion. Upper mirror 16
Is heated to about 80 ° C., and the fluororesin film piece 46 is made to follow the concave shape of the inner periphery of the upper mirror 16 by a manual roller. Then, as shown in FIG. 10 (d), the upper mirror section 16 is placed on the turntable 58 with the flange section 16-1 down, and while rotating the turntable 58 around its upright center line 44, Under the force, the outer peripheral portion of the fluororesin film piece 46 is pressed against the inner surface of the upper mirror portion 16 by the roller 36 and the roller 36 is moved radially outward from the center side. Therefore, the adhesive between the contact surface between the upper mirror portion 16 and the outer peripheral portion of the fluororesin film piece 46 is made uniform, and the bubbles contained therein are gradually sent to the outside of the radius as the roller 36 moves. And finally discharged to the outside. Therefore, it is possible to drive in a state in which air bubbles are completely eliminated in the adhesive layer between the contact surfaces between the upper mirror portion 16 and the fluororesin film piece 46. During this time, the adhesive advances, and the fluororesin film piece 46 is in a state of being adhered to the surface of the upper mirror.
【００３６】図１１の（イ）〜（ニ）は蓋部１８の下面へ
のフッ素樹脂皮膜片の接着及びノズル溶接を説明してい
る。（ロ）は蓋部の下面へのフッ素樹脂皮膜片５７の接
着を示している。次ぎに、（ハ）に示すようにノズル孔
２９が２９´で示すように拡開され、この広げられたノ
ズル孔２９に（ニ）で示すようにフッ素樹脂ノズル６１
が挿入される。フッ素樹脂皮膜片５７から突出したノズ
ル６１の外周部分にフッ素樹脂溶接棒が当てがわれ、か
つ熱風が吹きつけられることにより全周に沿って６３の
ように溶接がされる。ノズル６１には容器完成後（完成
状態は図２０参照）にバルブ等の外部接続部品が取り付
けられる。FIGS. 11A to 11D illustrate the bonding of the fluororesin film piece to the lower surface of the lid 18 and the nozzle welding. (B) shows the adhesion of the fluororesin film piece 57 to the lower surface of the lid. Next, as shown in (c), the nozzle hole 29 is expanded as shown by 29 ', and the expanded nozzle hole 29 is filled with the fluororesin nozzle 61 as shown in (d).
Is inserted. A fluororesin welding rod is applied to an outer peripheral portion of the nozzle 61 protruding from the fluororesin film piece 57, and welding is performed along the entire circumference as indicated by 63 by blowing hot air. After the container is completed (see FIG. 20 for the completed state), external connection parts such as valves are attached to the nozzle 61.
【００３７】次ぎは、上述のように内面にフッ素樹脂皮
膜を形成した後の缶体各部12, 14,16間の溶接について
説明する。この発明では各接合部間で、外周での缶体部
分間でのステンレス溶接を最初に行い、その後に内周で
のフッ素樹脂皮膜片間のフッ素樹脂リボン溶接を実施し
ている。図１２は胴部１２と底鏡部１４とをその溶接の
ため、上鏡部１６及び蓋部１８を横向きにして準備した
状態を示している。６０は胴部１２と底鏡部１４との間
の突当部を示しており、この突当部６０に沿ってステン
レスのプラズマ溶接が実行される。図１３は溶接工程実
施前における外周側での胴部１２と底鏡部１４との位置
関係及び内周側でのフッ素樹脂皮膜片２２と３０との位
置関係を断面にて示している。Next, the welding between the can parts 12, 14, and 16 after the formation of the fluororesin film on the inner surface as described above will be described. In this invention, stainless steel welding is first performed between the canned portions on the outer periphery between the joints, and then the fluororesin ribbon welding between the fluororesin film pieces is performed on the inner periphery. FIG. 12 shows a state in which the upper mirror part 16 and the lid part 18 are prepared with the upper mirror part 16 and the lid part 18 sideways for welding the body part 12 and the bottom mirror part 14. Numeral 60 denotes an abutting portion between the body portion 12 and the bottom mirror portion 14, along which the stainless steel plasma welding is performed. FIG. 13 is a cross-sectional view showing the positional relationship between the body portion 12 and the bottom mirror portion 14 on the outer peripheral side and the positional relationship between the fluororesin film pieces 22 and 30 on the inner peripheral side before the welding step.
【００３８】図１４(イ)はプラズマ溶接実施前の胴部１
２と底鏡部１４とが突き当てられた状態を拡大して示し
ている。突当面６０は直角となるように図示されている
が、周知のように、突当面は幾分Ｖ字状にカットされ、
溶肉の流れを良好にするようにしてもよい（突当面をＶ
字状にカットする場合の突当部の形状については別の実
施形態である図２１（イ）参照）。図６に関して説明し
たように底鏡部１４はその端縁において接着剤を塗布さ
れていない領域Ｔがある。領域Ｔの長さは、外周のステ
ンレスのプラズマ溶接時の高温時にフッ素樹脂皮膜片３
０を熱劣化せしめるおそれある温度まで増大しうる領域
の長さに対して十分余裕を持った長さであり、５センチ
メートル程度とれば十分である。一方、胴部１２につい
てはフッ素樹脂皮膜片２２は胴部１２におけるリブ３１
の中間部程度まで延びるに留まっており、ステンレス溶
接時の高温がフッ素樹脂皮膜片２２に影響を及ぼすこと
はない。FIG. 14A shows the body 1 before performing the plasma welding.
The state where 2 and the bottom mirror portion 14 are abutted is shown in an enlarged manner. The abutment surface 60 is shown as being at right angles, but as is well known, the abutment surface is cut somewhat V-shaped,
The flow of the molten metal may be made good (the abutting surface is V
Regarding the shape of the abutting portion in the case of cutting into a letter shape, see FIG. 21 (a) which is another embodiment). As described with reference to FIG. 6, the bottom mirror portion 14 has a region T where no adhesive is applied at its edge. The length of the region T is such that the fluororesin film piece 3 at high temperature during plasma welding of stainless steel on the outer periphery is used.
The length has a sufficient margin with respect to the length of the region that can increase to a temperature at which 0 may be thermally degraded, and a length of about 5 cm is sufficient. On the other hand, with respect to the body 12, the fluororesin film piece 22
, And the high temperature during stainless welding does not affect the fluororesin film piece 22.
【００３９】図１４の（ロ）はステンレス鋼により作ら
れた胴部１２と底鏡部１４との突当部６０の溶接のた
め、バッフル板６２を設置した状態を示している。この
バッフル板６２は胴部１２と底鏡部１４とのプラズマ溶
接時に発生される高温（火炎の部分では2000℃にもな
る）に近接したフッ素樹脂皮膜片（融点はせいぜい300
℃）の部分を保護するためのものである。即ち、ステン
レス溶接時に、フッ素樹脂皮膜片22, 30の接合部をバッ
フル板６２によって遮蔽しておくことによりフッ素樹脂
皮膜片22, 30を熱の影響から遮断し保護することができ
る。バッフル板６２はＳＵＳ鋼によって作られ突当部６
０に沿って配置される環状をなしている。バッフル板６
２は突当面６０を跨いだＵ字状断面部を形成しており、
このＵ字状断面部の内周及び外周に不燃性材料（例え
ば、グラスウール）にて形成されるシート64, 66が形成
されている。FIG. 14B shows a state in which a baffle plate 62 is installed for welding the abutting portion 60 between the body portion 12 and the bottom mirror portion 14 made of stainless steel. The baffle plate 62 is made of a fluororesin film piece (having a melting point of at most 300 ° C.) which is close to the high temperature (2000 ° C. in the flame portion) generated during the plasma welding of the body portion 12 and the bottom mirror portion 14.
° C). That is, during welding of stainless steel, by shielding the joint between the fluororesin film pieces 22 and 30 with the baffle plate 62, the fluororesin film pieces 22 and 30 can be shielded and protected from the influence of heat. The baffle plate 62 is made of SUS steel and
It has an annular shape arranged along 0. Baffle plate 6
2 forms a U-shaped cross section straddling the abutment surface 60,
Sheets 64 and 66 made of a nonflammable material (for example, glass wool) are formed on the inner and outer circumferences of the U-shaped cross section.
【００４０】図１２に戻って胴部１２と底鏡部１４との
間のステンレスプラズマ溶接方法を説明すると、胴部１
２及び底鏡部１４はローラを有した支持装置７０上に横
向きに載置される。プラズマ溶接ヘッド７２は支柱７３
に対して昇降（矢印ａ）及び水平方向移動（矢印ｂ）可
能なアーム７４の先端に取り付けられている。周知のエ
ア加圧手段によってアーム７４は下向きに付勢されてお
り、レストローラ７６が胴部１２の上面に当接してい
る。ＣＣＤカメラ７８は溶接部における溶接状態の監視
のため設けられており、ＣＣＤカメラ７８はモニタを有
したコンピュータ８０に接続されている。運転者により
操作される制御盤８２はコンピュータ８０を介して溶接
ヘッド７２を微妙に左右に動かし、溶接ビームが被溶接
部(突当部６０)に正確に当たるように制御することがで
きる。Returning to FIG. 12, the stainless steel plasma welding method between the body 12 and the bottom mirror 14 will be described.
2 and the bottom mirror section 14 are placed sideways on a supporting device 70 having rollers. The plasma welding head 72 has a support 73
It is attached to the tip of an arm 74 that can move up and down (arrow a) and move horizontally (arrow b). The arm 74 is urged downward by a known air pressurizing means, and the rest roller 76 is in contact with the upper surface of the body 12. The CCD camera 78 is provided for monitoring the welding condition at the welding portion, and the CCD camera 78 is connected to a computer 80 having a monitor. The control panel 82 operated by the driver can control the welding head 72 to move left and right delicately through the computer 80 so that the welding beam accurately hits the portion to be welded (butting portion 60).
【００４１】ステンレス溶接時において支持装置７０の
ローラによって胴部１２及び底鏡部１４は回転せしめら
れ（矢印Ｊ）、溶接ヘッド７２からのプラズマ火炎によ
って胴部１２及び底鏡部１４は突当部６０に沿って溶接
される。この間、運転者はＣＣＤカメラ７８によって撮
影された溶接部における溶接状態をコンピュータ８０の
モニタにて監視し、必要あれば、制御盤８２の操作によ
って最適な溶接状態を得るべく溶接ヘッド７２の溶接ビ
ームの位置制御を行う。During welding of the stainless steel, the body 12 and the bottom mirror 14 are rotated by the rollers of the support device 70 (arrow J), and the body 12 and the bottom mirror 14 are brought into contact with each other by the plasma flame from the welding head 72. Welded along 60. During this time, the driver monitors the welding condition at the welded portion photographed by the CCD camera 78 on the monitor of the computer 80, and if necessary, operates the control panel 82 to obtain the welding beam of the welding head 72 in order to obtain the optimal welding condition. Is performed.
【００４２】このようにして、胴部１２及び底鏡部１４
との間の突き当て部のステンレス溶接が完了すると、図
１４の(ハ)に示すように、バッフル板６２は除去され、
胴部１２と底鏡部１４との間のプラズマ溶接部分におけ
る溶肉は９０によって表わされている。その後、胴部１
２及び底鏡部１４の内面における領域Ｓ(リブ３１の内
周の凹部１９を含む領域)及びＴに接着剤が塗布され、
かつ胴部１２を被覆するフッ素樹脂皮膜片２２の端部２
２´の内面にも接着剤が塗布され、接着工程が実施され
る。接着に先だってフッ素樹脂皮膜片22, 30の突き当て
面は図１４の(ハ)に示すようにＶ字状にカットされる。
そして、フッ素樹脂皮膜片２２の端部２２´及びフッ素
樹脂皮膜片３０の端部３０´は凹部に沿って接着剤によ
って接着される。Thus, the body 12 and the bottom mirror 14
14 is completed, the baffle plate 62 is removed as shown in FIG.
The weld in the plasma weld between the barrel 12 and the bottom mirror 14 is represented by 90. Then, trunk 1
An adhesive is applied to regions 2 (the region including the concave portion 19 on the inner periphery of the rib 31) and T on the inner surface of the second mirror portion 14 and the bottom mirror portion 14,
And end portion 2 of fluororesin film piece 22 covering body 12
An adhesive is also applied to the inner surface of 2 ', and the bonding step is performed. Prior to bonding, the abutting surfaces of the fluororesin film pieces 22 and 30 are cut into a V-shape as shown in FIG.
Then, the end 22 ′ of the fluororesin film piece 22 and the end 30 ′ of the fluororesin film piece 30 are adhered along the recess by an adhesive.
【００４３】次に、胴部１２を被覆するフッ素樹脂皮膜
片２２と底鏡部１４を被覆するフッ素樹脂皮膜片３０と
接合部の溶接が行なわれる。以下、この溶接工程につい
て説明する。まず、図１５(ニ)に示すように、Ｖ字状に
カットされたフッ素樹脂皮膜片22, 30の突き当て面に断
面丸形フッ素樹脂溶接棒９２が当てがわれ、プラズマ溶
接ヘッドの熱風からの熱風によるめじ合わせ溶接が行な
われる。図１５ (ホ)の９３はめじ合わせ溶接された部分
を示す。その後、溶接棒９２による溶接(図では５回)が
数回繰り返して実施され、最終的には図１５の(ヘ)で示
すように溶肉９４で凹部１９が完全に充填された状態に
至る。Next, the joint between the fluororesin film piece 22 covering the body 12 and the fluororesin film piece 30 covering the bottom mirror part 14 is welded. Hereinafter, this welding step will be described. First, as shown in FIG. 15 (d), a round cross-section fluororesin welding rod 92 is applied to the abutting surfaces of the fluororesin film pieces 22 and 30 cut in a V-shape, and the hot air of the plasma welding head is applied. Is performed by hot air. Reference numeral 93 in FIG. 15 (e) shows a portion which has been welded by mating. Thereafter, welding (five times in the figure) with the welding rod 92 is repeatedly performed several times, and finally reaches a state in which the concave portion 19 is completely filled with the molten metal 94 as shown in FIG. .
【００４４】凹部１９内に位置しているフッ素樹脂皮膜
片22, 30の突当接合部をフッ素樹脂溶接棒の溶肉で盛り
上げた後、この盛り上げられた溶肉９４の部分がカッタ
により切削され、図１５の(ト)で示すようにフッ素樹脂
皮膜片22, 30に対して面一とされる。この発明ではフッ
素樹脂皮膜片22, 30の突当端部をリブ３１によりその内
方に形成される凹部１９内に位置させ、溶肉によって充
填することにより十分な溶肉の厚みが得られ、フッ素樹
脂皮膜片22, 30間で強固な接続状態を確保することがで
きると共に、缶体内周筒状面に対して面一となるように
削平することにより、リブ３１の部位において缶体の内
周におけるフッ素樹脂皮膜形成面は完全に平坦な状態と
することができ、容器の使用中におけるこの部分に対す
る塵埃や不純物の滞留・堆積は実質的に排除することが
できる。After the abutting joints of the fluororesin film pieces 22 and 30 located in the concave portion 19 are raised with the molten metal of the fluororesin welding rod, the raised molten material 94 is cut by a cutter. As shown in FIG. 15 (g), they are flush with the fluororesin film pieces 22, 30. In the present invention, the abutting end portions of the fluororesin film pieces 22 and 30 are located in the concave portions 19 formed inside the ribs 31 by the ribs 31, and a sufficient thickness of the melt is obtained by filling with the melt. A strong connection between the fluororesin film pieces 22 and 30 can be ensured, and the inner surface of the can at the portion of the rib 31 is flattened to be flush with the peripheral cylindrical surface in the can. The surface on which the fluororesin film is formed can be completely flat in the periphery, and the accumulation and accumulation of dust and impurities on this portion during use of the container can be substantially eliminated.
【００４５】図１６はフッ素樹脂溶接方式を概略的に示
している。即ち、溶接ヘッド９７はアーム９８の先端に
取り付けられる。アーム９８は支持台１００に対して昇
降（矢印ｃ）及び左右移動（矢印ｄ）可能となってい
る。一方、フッ素樹脂皮膜片22, 30を溶接すべき胴部１
２及び底鏡部１４（スカート２０）は支持装置７０のロ
ーラ70A, 70Bに乗せられ、ローラ70A, 70Bの回転によっ
て、そこに載置された胴部１２及び底鏡部１４を回転さ
せることができるようになっている。FIG. 16 schematically shows a fluororesin welding method. That is, the welding head 97 is attached to the tip of the arm 98. The arm 98 can move up and down (arrow c) and move left and right (arrow d) with respect to the support table 100. On the other hand, the body 1 to which the fluororesin film pieces 22 and 30 should be welded
2 and the bottom mirror 14 (skirt 20) are mounted on the rollers 70A and 70B of the support device 70, and the rotation of the rollers 70A and 70B can rotate the body 12 and the bottom mirror 14 placed thereon. I can do it.
【００４６】図１７は溶接ヘッド９７を示す。図１６に
示すように溶接ヘッド９７はアーム９８の先端に取り付
けられる。ヘッド９７は熱風のノズル９７Ａと、丸断面
溶接棒９２の案内のためのパイプ状案内部９７Ｂとを備
えている。溶接時、案内部９７Ｂは空気圧などを使用し
て間欠的な上下運動を行い、案内部９７Ｂの下降時、そ
れに案内された溶接棒９２はフッ素樹脂皮膜片30, 32間
のＶ型溝（図１５（ニ）及び（ホ）参照）に導入される。
その後、案内部９７Ｂは上昇され、被溶接部を進ませ
（図１６のローラ70A, 70Bにより缶体を回し）つつ、ノ
ズル９７Ａより溶接棒９２の背後に熱風を吹きつける。
そのため、溶接棒９２は溶肉９３（図１５（ホ））とな
ってＶ型溝に溶けこむ。或る距離溶接後に、再び案内部
９７Ｂを下降させ、溶接棒をＶ型のめじ合わせ溝に埋め
込ませ、以後同様の作業の繰り返しが全周について行わ
れる。FIG. 17 shows a welding head 97. As shown in FIG. 16, the welding head 97 is attached to the tip of the arm 98. The head 97 includes a hot air nozzle 97A and a pipe-shaped guide portion 97B for guiding the welding rod 92 having a round cross section. At the time of welding, the guide portion 97B performs intermittent vertical movement using air pressure or the like, and when the guide portion 97B is lowered, the welding rod 92 guided by the guide portion 97B is a V-shaped groove between the fluororesin film pieces 30 and 32 (FIG. 15 (d) and (e).
Thereafter, the guide portion 97B is lifted, and the hot air is blown behind the welding rod 92 from the nozzle 97A while advancing the welded portion (turning the can body by the rollers 70A and 70B in FIG. 16).
For this reason, the welding rod 92 becomes a melt 93 (FIG. 15E) and melts into the V-shaped groove. After welding for a certain distance, the guide portion 97B is lowered again, and the welding rod is buried in the V-shaped mating groove. Thereafter, the same operation is repeated over the entire circumference.
【００４７】このようにして、底鏡部１４における外周
でのステンレス溶接及び内周でのフッ素樹脂溶接が完了
後に、上鏡部１６における外周でのステンレスのプラズ
マ溶接及び内周でのフッ素樹脂溶接が実施される。図１
８は外周でのステンレス溶接は、胴部１２と底鏡部１４
との間について図１４の（イ）及び（ロ）で説明したと同
様に実施され、その結果得られる胴部１２と上鏡部１６
との間の金属溶肉を図１８では１０６で示している。内
周側におけるフッ素樹脂皮膜片22, 46の溶接は図１４の
（ハ）〜図１５の(ト)と同様に実施することができる。図
１９はフッ素樹脂溶接が完了し、フッ素樹脂皮膜片22,
46間の溶肉の部分９５が面一となるように削平された状
態を示す。After the stainless steel welding on the outer periphery and the fluororesin welding on the inner periphery of the bottom mirror portion 14 are completed, the plasma welding of stainless steel on the outer periphery and the fluororesin welding on the inner periphery of the upper mirror portion 16 are completed. Is performed. FIG.
8 is the stainless steel welding on the outer periphery, the trunk 12 and the bottom mirror 14
14 is performed in the same manner as described with reference to FIGS. 14A and 14B, and the resulting body 12 and upper mirror 16
18 is indicated by reference numeral 106 in FIG. The welding of the fluororesin film pieces 22 and 46 on the inner peripheral side can be performed in the same manner as (c) in FIG. 14 to (g) in FIG. FIG. 19 shows that the fluororesin welding has been completed and the fluororesin film pieces 22,
This shows a state where the welded portion 95 between 46 is flattened so as to be flush.
【００４８】最後に、図２０のように蓋部１８をボルト
１１０によって上鏡部１６に固定することによって金属
容器が完成する。Finally, the metal container is completed by fixing the lid 18 to the upper mirror 16 with bolts 110 as shown in FIG.
【００４９】図２１(イ)〜(ハ)は溶接方法の別実施形態を
示す。この実施形態ではリブが31A,31Bのように胴部１
２、底鏡部１４の端部にそれぞれ形成され、これらが突
き合されることにより凹部１９が形成される。図２１の
(イ)ではフッ素樹脂皮膜片22,30の端部は凹部１９には接
着が未だされていない。FIGS. 21A to 21C show another embodiment of the welding method. In this embodiment, the ribs 31A and 31B serve as the body 1
2. A concave portion 19 is formed at each end of the bottom mirror portion 14 and butted against each other. Of FIG.
In (a), the end portions of the fluororesin film pieces 22 and 30 are not yet bonded to the concave portions 19.
【００５０】リブ31A, 31Bは突き当てられた端部間にお
いて、レーザビームによる溶接が行われ、レーザビーム
溶接による溶肉の部分が９０´にて示される。リブが31
A, 31Bの部位でレーザ溶接がされ、フッ素樹脂皮膜片2
2, 30の端部は凹部１９からは離間しているため、レー
ザ溶接による高温の影響はフッ素樹脂皮膜片22, 30には
及ばない。即ち、この実施形態では図１４(ロ)で使用し
たような遮蔽板６２を使用する必要がない。そのため、
フッ素樹脂溶接工程が簡単化される利点がある。The ribs 31A and 31B are welded by a laser beam between the abutted ends, and a welded portion by laser beam welding is indicated by 90 '. Ribs 31
Laser welding is performed on the parts A and 31B.
Since the end portions 2 and 30 are separated from the concave portion 19, the influence of the high temperature due to the laser welding does not affect the fluororesin film pieces 22 and 30. That is, in this embodiment, there is no need to use the shielding plate 62 as used in FIG. for that reason,
There is an advantage that the fluororesin welding process is simplified.
【００５１】レーザ溶接後にフッ素樹脂皮膜片22, 30の
端部は凹部１９に接着剤にて接着され、図１５(ニ)〜(ヘ)
で説明したと同様にフッ素樹脂皮膜片22, 30の突当端部
間がフッ素樹脂溶接棒によってめじ合わせ溶接され、か
つ凹部１９において溶肉９４が図２１(ハ)の破線のよう
に盛り上がるまで、フッ素樹脂溶接棒の溶接が実施され
る。その後、溶肉９４における盛り上げられた部分は実
線のように削平される。After the laser welding, the end portions of the fluororesin film pieces 22 and 30 are bonded to the concave portions 19 with an adhesive, and FIGS.
In the same manner as described above, between the abutting ends of the fluororesin film pieces 22 and 30 is mated and welded by the fluororesin welding rod, and the molten metal 94 rises in the recess 19 as shown by the broken line in FIG. The welding of the fluorine resin welding rod is performed. Thereafter, the raised portion of the welded material 94 is flattened as shown by a solid line.
【００５２】この発明の更に別の実施形態として、胴部
１２と底鏡部１４との間の接合及び胴部１２と上鏡部１
６との間の接合においてリブ３１又は31A, 31Bを設け
ず、図５に説明したフッ素樹脂皮膜片の長手方向端部の
溶接と同様な方式を採用することができる。即ち、胴部
１２と底鏡部１４との間の接合及び胴部１２と上鏡部１
６との間の接合においても図５と同様にフッ素樹脂皮膜
片の端部同士が重ねられ、溶接用フッ素樹脂リボン３３
がその間に介在され、ローラＲによる加圧下で熱風Ｆに
よる溶接が行われ、その後、ａのように面取りが実施さ
れる。この実施形態では胴部１２と底鏡部１４との間の
接合及び胴部１２と上鏡部１６との間の接合部は図２０
で示すような完全平坦とはならないが、面取りを行うこ
とにより接合部における急峻な段部が存在しないため、
塵埃などの滞留・堆積を防止し、かつ洗浄性の向上を実
現する効果がある。As still another embodiment of the present invention, the joining between the body portion 12 and the bottom mirror portion 14 and the body portion 12 and the upper mirror portion 1
6, the rib 31 or 31A, 31B is not provided, and the same method as the welding of the longitudinal end of the fluororesin film piece described with reference to FIG. 5 can be adopted. That is, the joint between the body 12 and the bottom mirror 14 and the body 12 and the top mirror 1
5, the ends of the fluororesin film pieces are overlapped with each other in the same manner as in FIG.
Is interposed therebetween, welding by hot air F is performed under pressure by the roller R, and thereafter, chamfering is performed as shown in a. In this embodiment, the joint between the body 12 and the bottom mirror 14 and the joint between the body 12 and the upper mirror 16 are shown in FIG.
Although it is not completely flat as shown by, since there is no sharp step at the joint by chamfering,
This has the effect of preventing stagnation and accumulation of dust and the like and realizing an improvement in cleaning performance.
【図１】図１は分離状態の缶体の各部を示す断面図であ
る。FIG. 1 is a sectional view showing each part of a can body in a separated state.
【図２】図２は胴部及びその内周を被覆するフッ素樹脂
皮膜片への接着剤の塗布状態を示す概略的斜視図であ
る。FIG. 2 is a schematic perspective view showing a state in which an adhesive is applied to a fluororesin film piece covering a body and its inner periphery.
【図３】図３は胴部において胴部表面とフッ素樹脂皮膜
片との密着のためのローラ装置を示す図である。FIG. 3 is a view showing a roller device for tightly contacting the surface of the body with the fluororesin film piece at the body.
【図４】図４は図３のIV−IV線に沿って表される矢視断
面図である。FIG. 4 is a sectional view taken along the line IV-IV in FIG.
【図５】図５はフッ素樹脂皮膜片の円周方向における重
ねられた端部間のフッ素樹脂溶接の工程(イ)〜(ハ)を説明
する図である。FIG. 5 is a view for explaining steps (a) to (c) of fluororesin welding between overlapping ends in the circumferential direction of the fluororesin film piece.
【図６】図６は底鏡部及びその内面を被覆するフッ素樹
脂皮膜片への接着剤の塗布状態を示す概略的斜視図であ
る。FIG. 6 is a schematic perspective view showing a state in which an adhesive is applied to a fluororesin film piece covering a bottom mirror portion and an inner surface thereof.
【図７】図７は図６と同様であるがローラによって底鏡
部凹面上でフッ素樹脂皮膜片を熨している状態を示して
いる。FIG. 7 is a view similar to FIG. 6, but showing a state in which a fluororesin film piece is laid on the concave surface of the bottom mirror by a roller.
【図８】図８は図７において使用するローラ式加圧機構
を示す断面図である。FIG. 8 is a sectional view showing a roller-type pressing mechanism used in FIG. 7;
【図９】図９は上鏡部におけるフッ素樹脂皮膜片の接着
工程の段階(イ)及び(ロ)を示す図である。FIG. 9 is a view showing steps (a) and (b) of a bonding step of a fluororesin film piece in the upper mirror portion.
【図１０】図１０は上鏡部におけるフッ素樹脂皮膜片の
接着工程の段階(イ)及び(ロ)に後続する段階(ハ)及び(ニ)を
示す図である。FIG. 10 is a view showing steps (c) and (d) subsequent to steps (a) and (b) of the bonding step of the fluororesin film piece in the upper mirror portion.
【図１１】図１１は蓋部におけるフッ素樹脂皮膜片の接
着工程の段階(イ)〜(ニ)を示す図である。FIG. 11 is a view showing stages (a) to (d) of a bonding process of a fluororesin film piece on a lid portion.
【図１２】図１２は胴部と底鏡部との外周における自動
的ステンレスプラズマ溶接方式を説明する概略的斜視図
である。FIG. 12 is a schematic perspective view for explaining an automatic stainless steel plasma welding method on the outer periphery of a trunk portion and a bottom mirror portion.
【図１３】図１３は溶接前の胴部と底鏡部との接合状態
を示す図である。FIG. 13 is a view showing a joint state between the body and the bottom mirror before welding.
【図１４】図１４の(イ)〜(ハ)は胴部と底鏡部との突当部
における外周のステンレスプラズマ溶接及びその後の内
周の熱風式フッ素樹脂溶接がどのように行われるかを段
階を追って説明する図である。14 (a) to 14 (c) show how stainless steel plasma welding of the outer periphery and subsequent hot-air fluorine resin welding of the inner periphery are performed at the abutting portion between the trunk and the bottom mirror. Is a diagram for explaining step by step. FIG.
【図１５】図１５は図１４の段階(イ)〜(ハ)に後続する段
階(ニ)〜(ト)を示す図である。FIG. 15 is a diagram showing steps (d) to (g) subsequent to steps (a) to (c) in FIG.
【図１６】図１６は胴部と底鏡部との内周における熱風
による自動的フッ素樹脂溶接方式を説明する概略的断面
図である。FIG. 16 is a schematic cross-sectional view for explaining an automatic fluororesin welding method using hot air on the inner periphery of a trunk portion and a bottom mirror portion.
【図１７】図１７はフッ素樹脂溶接用の溶接ヘッドの概
略的斜視図を示す。FIG. 17 is a schematic perspective view of a welding head for fluorine resin welding.
【図１８】図１８は底鏡部の溶接が行われた胴部に上鏡
部を溶接するため胴部上端に上鏡部を接合した状態を示
す断面図である。FIG. 18 is a cross-sectional view showing a state in which the upper mirror is joined to the upper end of the body to weld the upper mirror to the body to which the bottom mirror has been welded.
【図１９】図１９は胴部と上鏡部との間のフッ素樹脂溶
接が完了した状態を示す断面図である。FIG. 19 is a cross-sectional view showing a state where the fluororesin welding between the body and the upper mirror has been completed.
【図２０】図２０はステンレス缶体の内周を完全にフッ
素樹脂で皮膜した完成した状態の金属容器の断面図であ
る。FIG. 20 is a cross-sectional view of a completed metal container in which the inner periphery of a stainless steel can is completely coated with a fluororesin.
【図２１】図２１の(イ)〜(ハ)は胴部と底鏡部との突当部
における外周のステンレスプラズマ溶接及びその後の内
周の熱風式フッ素樹脂溶接がどのように行われるかを段
階を追って説明する図である。FIGS. 21 (a) to (c) show how stainless steel plasma welding of the outer periphery and subsequent hot-air fluororesin welding of the inner periphery at the abutting portion between the trunk and the bottom mirror are performed. Is a diagram for explaining step by step. FIG.
１０…ステンレス缶体 １２…胴部 １４…底鏡部 １６…上鏡部 １８…蓋部 ２０…スカート部 ２２…胴部内面被覆用フッ素樹脂皮膜片 ２５…駆動側加圧ローラ ２６…従動側加圧ローラ ２８…摺動軸受 ３０…底鏡部内面被覆用フッ素樹脂皮膜片 ３４…回動自在ロッド ３６…接着剤ならし用ローラ ３８…スプリング ４６…上鏡部内面被覆用フッ素樹脂皮膜片 ５２…中心インサート ５４…外側インサート ５７…蓋部内面被覆用フッ素樹脂皮膜片 ５８…回転テーブル ６１…ノズル ６２…バッフル板 62, 64…不燃性材料製シート ７０…支持装置 ７２…プラズマ溶接ヘッド ７８…溶接状態監視用ＣＣＤカメラ ８０…コンピュータ ８２…制御盤 ９２…溶接棒 ９７…フッ素樹脂熱風溶接用ヘッド DESCRIPTION OF SYMBOLS 10 ... Stainless steel body 12 ... Trunk 14 ... Bottom mirror 16 ... Top mirror 18 ... Lid 20 ... Skirt 22 ... Fluororesin film piece for coating the inside of a trunk 25 ... Driving pressure roller 26 ... Pressure roller 28 ... Sliding bearing 30 ... Fluororesin film piece for coating the inner surface of bottom mirror 34 ... Rotable rod 36 ... Roller for adhesive leveling 38 ... Spring 46 ... Fluoro resin film piece for coating the inner surface of upper mirror part 52 ... Center insert 54 ... Outer insert 57 ... Sheet of fluororesin film for covering the inner surface of the lid 58 ... Rotating table 61 ... Nozzle 62 ... Baffle plate 62,64 ... Sheet made of noncombustible material 70 ... Support device 72 ... Plasma welding head 78 ... Welding state CCD camera for monitoring 80 ... Computer 82 ... Control panel 92 ... Welding rod 97 ... Head for fluororesin hot air welding
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｌ 22:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) B29L 22:00
Claims (5)
膜を金属缶体の内面の別々の部分に対応した複数片に分
割し、このように分割された合成樹脂皮膜片を金属缶体
の内面の対応部分に接着し、かつ分割された合成樹脂皮
膜片間を溶接する方法において、合成樹脂皮膜片の接合
すべき端部を金属缶体の内周に形成される凹部内に位置
させ、かつ前記凹部における合成樹脂片の接合すべき端
部に沿って合成樹脂を溶融充填することを特徴とする金
属容器における合成樹脂皮膜片接合部溶接方法。1. A synthetic resin film to be formed on the inner surface of a metal can body is divided into a plurality of pieces corresponding to different portions of the inner surface of the metal can body. In the method of adhering to the corresponding portion of the inner surface of the metal sheet and welding the divided synthetic resin film pieces, the end of the synthetic resin film piece to be joined is positioned in a recess formed on the inner periphery of the metal can body. A method of welding a synthetic resin film piece in a metal container, wherein the synthetic resin is melt-filled along an end of the synthetic resin piece to be joined in the concave portion.
おける合成樹脂片の接合すべき端部に沿って溶融充填さ
れた合成樹脂の漏り上がった部位を金属缶体の内周筒状
面と実質的に面一に至るまで切削することを特徴とする
金属容器における合成樹脂皮膜片接合部溶接方法。2. The invention according to claim 1, wherein the leaked portion of the synthetic resin melt-filled along the end of the synthetic resin piece to be joined in the concave portion is defined as an inner peripheral cylindrical surface of the metal can body. A method for welding a joint portion of a synthetic resin film piece in a metal container, the method comprising cutting to substantially the same level.
膜を金属缶体の内面の別々の部分に対応した複数片に分
割し、このように分割された合成樹脂皮膜片を金属缶体
の内面の対応部分に接着し、かつ分割された合成樹脂皮
膜片間を溶接する方法において、合成樹脂皮膜片の一方
の端部を他方の端部の上方において重なるように位置さ
せ、これらの重ねられた端部間に帯状の合成樹脂を配置
すると共に加熱下で加圧することにより合成樹脂片の端
部同士を溶接し、更に上側に位置する合成樹脂片の縁部
を面取りすることを特徴とする金属容器における合成樹
脂皮膜片接合部溶接方法。3. The synthetic resin film to be formed on the inner surface of the metal can body is divided into a plurality of pieces corresponding to different portions of the inner surface of the metal can body. In the method of bonding to the corresponding portion of the inner surface of the above and welding between the divided synthetic resin film pieces, one end of the synthetic resin film piece is positioned so as to overlap above the other end, and these are overlapped. It is characterized in that a belt-shaped synthetic resin is arranged between the set ends, and the ends of the synthetic resin pieces are welded to each other by pressing under heating, and the edges of the synthetic resin pieces located on the upper side are further chamfered. Method for welding a joint portion of a synthetic resin film in a metal container to be bonded.
金属容器の製造方法であって、金属缶体を構成する複数
の部分及び金属缶体の前記各部分に対応した形状の合成
樹脂皮膜片を準備し、金属缶体の胴部と底鏡部との接合
部又は胴部と上鏡部の接合部又はその付近にリブが曲折
形成され、缶体の各部分及びこれに対応した合成樹脂皮
膜片に接着剤を塗布し、缶体部分と合成樹脂皮膜片とを
その接着剤塗布面同士で加圧下で接触させることにより
缶体部分と合成樹脂皮膜片とをその接触面の全面にわた
って接着し、その後に缶体外部における缶体各部間の溶
接と缶体内部での合成樹脂皮膜片間の溶接を行い、合成
樹脂皮膜片間の前記溶接に際しては、胴部と底鏡部との
間又は胴部と上鏡部との間ではリブ内周に形成される凹
部に沿って合成樹脂皮膜片の端部間に合成樹脂を溶融充
填し、その後充填された樹脂の漏り上がった部位を面一
となるように切削することを特徴とする金属容器の製造
方法。4. A method for producing a metal container having a synthetic resin film on an inner surface of a metal can body, the synthetic resin having a shape corresponding to a plurality of portions constituting the metal can body and the respective portions of the metal can body. A piece of the coating was prepared, and ribs were bent at the junction between the body and the bottom mirror of the metal can or at or near the junction between the body and the top mirror, corresponding to each part of the can and the corresponding parts An adhesive is applied to the synthetic resin film piece, and the can body part and the synthetic resin film piece are brought into contact with each other under pressure between the adhesive applied surfaces, so that the can body part and the synthetic resin film piece are entirely contacted with each other. After that, welding between each part of the can body outside the can body and welding between the synthetic resin film pieces inside the can body are performed, and at the time of the welding between the synthetic resin film pieces, the body part and the bottom mirror part are Between the ribs or between the body and the upper mirror along the recess formed on the inner circumference of the rib A method for producing a metal container, characterized in that a synthetic resin is melt-filled between end portions of a coating piece, and thereafter, a leaked portion of the filled resin is cut so as to be flush.
脂皮膜片間の溶接においては、リブに沿っていない部位
では溶接すべき端部同士を重ね合わせ、その間に帯状の
合成樹脂を配置すると共に加熱下で加圧することにより
合成樹脂片の端部同士を溶接し、更に上側に位置する合
成樹脂片の縁部を面取りすることを特徴とする金属容器
の製造方法。5. In the invention according to claim 4, in welding between the synthetic resin film pieces, ends to be welded are overlapped with each other at a portion not along the rib, and a band-like synthetic resin is disposed therebetween. A method of manufacturing a metal container, comprising welding the ends of a synthetic resin piece by pressing under heat while simultaneously chamfering the edge of the synthetic resin piece located on the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11151613A JP2000334837A (en) | 1999-05-31 | 1999-05-31 | Method for welding joint of synthetic resin membrane piece in metal container, and production of metal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11151613A JP2000334837A (en) | 1999-05-31 | 1999-05-31 | Method for welding joint of synthetic resin membrane piece in metal container, and production of metal container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000334837A true JP2000334837A (en) | 2000-12-05 |
Family
ID=15522374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11151613A Ceased JP2000334837A (en) | 1999-05-31 | 1999-05-31 | Method for welding joint of synthetic resin membrane piece in metal container, and production of metal container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000334837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036767A1 (en) * | 2022-08-15 | 2024-02-22 | 苏州华源控股股份有限公司 | Process for applying thin film to inner wall of barrel |
-
1999
- 1999-05-31 JP JP11151613A patent/JP2000334837A/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036767A1 (en) * | 2022-08-15 | 2024-02-22 | 苏州华源控股股份有限公司 | Process for applying thin film to inner wall of barrel |
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