JPH09108752A - Repairing of inner surface of welded seam of metal can body - Google Patents
Repairing of inner surface of welded seam of metal can bodyInfo
- Publication number
- JPH09108752A JPH09108752A JP29061695A JP29061695A JPH09108752A JP H09108752 A JPH09108752 A JP H09108752A JP 29061695 A JP29061695 A JP 29061695A JP 29061695 A JP29061695 A JP 29061695A JP H09108752 A JPH09108752 A JP H09108752A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- bodies
- welding
- metal
- welded
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene terephthalate isophthalate copolymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は金属缶体の缶胴側面
溶接継目部内面にテープ状の金属に対して熱融着性およ
び耐食性を有する樹脂フィルムよりなる補修テープを熱
融着し、該内面を被覆補修する方法に係り、食品、塗
料、接着剤、染料、香料、洗剤、油脂、酸、アルカリ、
その他の化学品等の内容物を充填、保存、運搬する、耐
食性、気密性および安全性にすぐれた容器を、高速で連
続的に能率良くかつ経済的に製造する事を可能にする前
記補修方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal can body, in which a repair tape made of a resin film having a heat-fusing property and corrosion resistance is heat-fused to a tape-shaped metal on the inner surface of a welded portion on the side of the can body. Regarding the method of coating and repairing the inner surface, food, paints, adhesives, dyes, fragrances, detergents, oils, acids, alkalis,
The above-mentioned repair method that enables efficient, high-speed, continuous production of containers having excellent corrosion resistance, airtightness, and safety for filling, storing, and transporting contents such as other chemicals. About.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】従来
金属缶としては、半田缶、樹脂接着缶、シーリング剤充
填式ロックシーム缶、溶接缶等が製造されているが、最
近は特に強度や経済性の点で鋼板溶接缶が多用されてい
る。2. Description of the Related Art Conventionally, as a metal can, a solder can, a resin adhesive can, a lock seam can filled with a sealing agent, a welding can, and the like have been manufactured. Steel cans are often used in terms of their properties.
【０００３】この溶接缶は一般には各種防錆前処理した
所定サイズの鋼板を用い、溶接端縁部を筒状に重ね合
せ、シーム溶接にて接合して缶胴を形成し、これに上下
の缶蓋を接合して缶体とすることにより得られる。This welded can is generally made of a steel plate of a predetermined size which has been subjected to various types of rust-prevention treatment. The welded edges are superposed in a tubular shape and joined by seam welding to form a can body. It is obtained by joining can lids to form a can body.
【０００４】上記溶接継目部分は高温溶接熱のため各種
防錆前処理膜は破壊され、金属面が露出し非常に腐食さ
れ易い状態にあり、又重ね合せ溶接部の段差や溶接時の
スパッター生成現象があり、この部分の完全防食のため
には強靱・厚膜の帯状防食保護被覆補修が必要となる。[0004] The above-mentioned welding seam is in a state in which various anti-corrosion pre-treatment films are destroyed due to high-temperature welding heat, the metal surface is exposed and is very susceptible to corrosion. There is a phenomenon, and it is necessary to repair a tough and thick-film anticorrosive protective coating for complete corrosion protection of this part.
【０００５】従って上記要求を満足させ、生産性向上の
ための連続高速生産態勢下における溶接缶胴の重防食補
修方法として、従来、例えば、特公昭６０−４７５０
号、特公昭６１−２９９８６号等には、ポリアミド樹
脂、ポリエステル樹脂、ポリオレフィン樹脂、ポリ塩化
ビニル樹脂などの高速肉厚保護被膜形成に有効な熱可塑
性樹脂の微粉体分散液を塗布して金属容器溶接継目部分
を被覆する方法、ならびに静電粉体塗装法を用いる補修
方法が知られている。[0005] Accordingly, as a method for repairing heavy corrosion protection of a welded can body under a continuous high-speed production system for satisfying the above-mentioned requirements and improving productivity, for example, Japanese Patent Publication No. Sho 60-4750.
No. 61-29986, etc., a metal container coated with a fine powder dispersion of a thermoplastic resin effective for forming a high-speed thick protective film such as polyamide resin, polyester resin, polyolefin resin and polyvinyl chloride resin. A method for coating a welded seam portion and a repair method using an electrostatic powder coating method are known.
【０００６】然し両者共原料微粉体樹脂（径約３０μ）
が高価な上に前者は速乾性の有機溶剤系のスラリーであ
る為、環境汚染問題や衛生上に難点があり、後者は幅狭
の限定溶接部位への高速連続精密塗布性に問題がある上
に高価な設備費を必要とする欠点がある。However, in both cases, the raw material powder resin (about 30μ in diameter)
Is expensive and the former is a quick-drying organic solvent-based slurry, which poses environmental pollution and hygiene problems.The latter has a problem with high-speed continuous precision application to narrow limited welded parts. Has the disadvantage of requiring expensive equipment costs.
【０００７】又、該溶接部位を連続テープ状樹脂フィル
ムで融着補正する方法（例えば、特公昭５３−４３３５
０号、特公平５−４９３７３号）の提案もあるが、共に
連続繰り出し缶胴の予熱溶接内面部分に連続テープを貼
着、各缶胴毎にテープを切断する方法であるが、前者は
垂直カッター切断方法で高速生産の場合はそのタイミン
グをとる方法に難点があり、後者はテープ融着後、融点
以下の温度での再加熱完了前後の缶胴搬送速度差形成に
より密接隣接缶胴面のテープ切断方法であるが、耐食
性、強靱性のフィルムの場合は速度差によるフィルム延
伸現象を無視しえず、これを解決する条件設定に難点が
あると考えられ共に高速精密切断方法として問題があ
る。Also, a method of correcting fusion of the welded portion with a continuous tape-shaped resin film (for example, Japanese Patent Publication No. 53-4335).
No. 0, Japanese Patent Publication No. 5-49373), but in both cases, a continuous tape is applied to the inner surface of the preheating welding of the continuous feeding can body, and the tape is cut for each can body. In the case of high-speed production by the cutter cutting method, there is a problem in the method of taking the timing, and the latter has a problem in that the tape can be closely bonded to the adjacent can body surface due to the difference in the can body transport speed before and after the completion of reheating at a temperature below the melting point after tape fusion. Although it is a tape cutting method, in the case of a film having corrosion resistance and toughness, the film stretching phenomenon due to the speed difference cannot be ignored, and it is considered that there are difficulties in setting conditions for solving this, and there is a problem as a high-speed precision cutting method. .
【０００８】[0008]
【課題を解決するための手段】本発明は、複数個の金属
缶体用溶接缶胴を、該溶接缶胴の溶接継目部内面がその
長さ方向同一線上に配置される方向に、相互に一定の間
隔を置いて、所定の速度で、溶接継目部内面周縁を一定
温度に予熱しながら連続的に搬送し、同時に前記溶接缶
胴の搬送速度に同調し、テープガイドにより補修テープ
を連続的に繰り出して、予熱された溶接継目部内面に当
接させ、押圧ローラーにより熱融着させる工程を連続的
に行ない、該補修テープが溶接継目部内面先端周縁に熱
融着された時点で、先行する缶胴との間にあって軟化状
態にある余剰補修テープを下方に真空吸引し、それぞれ
の溶接継目部内面端に沿って精密に切断し除去する工程
を順次行ない、金属缶体用溶接缶胴の溶接継目部内面に
補修テープを熱融着させることを特徴とする金属缶体溶
接継目部内面の補修方法を提供するものである。SUMMARY OF THE INVENTION According to the present invention, a plurality of welding can bodies for metal can bodies are arranged in such a manner that the inner surfaces of the welding seams of the welding can bodies are arranged on the same line in the longitudinal direction thereof. At predetermined intervals, at a predetermined speed, the inner peripheral edge of the welded seam is continuously conveyed while being preheated to a constant temperature, and at the same time, synchronized with the conveying speed of the welding can body, and the repair tape is continuously conveyed by a tape guide. The repair tape is continuously welded to the inner surface of the welded seam portion by a pressing roller. The excess repair tape which is in a softened state between the can body to be vacuumed is vacuum-suctioned downward, and a step of precisely cutting and removing along the inner surface edge of each welded seam portion is sequentially performed. Hot-melt repair tape on the inner surface of the weld seam There is provided a method of repairing a metal can body welding seam inner surface, characterized in that to.
【０００９】[0009]
【発明の実施の形態】本発明方法の適用される金属缶
は、従来公知の金属缶であれば特に制限されるものでは
ないが、鋼板溶接缶に適用するのが特に好適である。本
発明方法において、搬送される各溶接缶胴間の間隔は、
１５〜４０ｍｍの範囲が好ましい。本発明方法におい
て、溶接缶胴の搬送速度は、金属缶生産における従来公
知の高速連続搬送生産方式にしたがって任意に選定する
ことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The metal can to which the method of the present invention is applied is not particularly limited as long as it is a conventionally known metal can, but it is particularly preferable to apply it to a steel plate welding can. In the method of the present invention, the interval between each welded can body to be conveyed,
A range of 15 to 40 mm is preferred. In the method of the present invention, the transfer speed of the welding can body can be arbitrarily selected in accordance with a conventionally known high-speed continuous transfer production system in the production of metal cans.
【００１０】本発明方法において、溶接継目部内面周縁
の予熱温度は、補修テープが強力に融着し、かつ溶接缶
胴間にあって、真空吸引により切断される補修テープ
が、真空吸引により切断できるよう軟化状態にある限り
特に制限されるものではないが、該補修テープを構成す
る樹脂の融点以上分解温度以下の範囲、具体的には、樹
脂の種類によっても多少変動するが、１００〜３００
℃、印刷インキが施こされている場合には、１５０〜２
５０℃の範囲が好適である。In the method of the present invention, the preheating temperature of the inner peripheral edge of the weld seam is such that the repair tape is strongly fused and is between the barrels of the welding can and cut by vacuum suction so that the repair tape can be cut by vacuum suction. It is not particularly limited as long as it is in a softened state, but it is 100 to 300, although it varies depending on the range from the melting point of the resin constituting the repair tape to the decomposition temperature, specifically, the type of resin.
℃, 150 to 2 when printing ink is applied
A range of 50 ° C is preferred.
【００１１】本発明方法における補修テープとして、金
属との熱融着性を有する耐食性の熱可塑性樹脂、例えば
ポリオレフィン系、ポリアミド系、ポリエステル系、ポ
リ塩化ビニル系などの樹脂のフィルムを使用することが
できる。具体例として、ポリオレフィン、エチレン酢酸
ビニル共重合物などのマレイン酸グラフト化物、エチレ
ンアクリル酸共重合物、エチレンアクリル酸エチル共重
合物、６−，６・６−，１１−または１２−ナイロン、
ポリエチレンテレフタレートイソフタレート系共重合
物、塩化ビニル酢酸ビニル共重合物などのフィルムが挙
げられる。該補修テープの形状は、幅３〜５０ｍｍ、厚
さ０．０５〜０．５０ｍｍの範囲が適当である。As the repair tape in the method of the present invention, it is possible to use a film of a corrosion-resistant thermoplastic resin having a heat-fusing property with a metal, for example, a resin film of a polyolefin-based, polyamide-based, polyester-based or polyvinyl chloride-based resin. it can. Specific examples include polyolefins, maleic acid grafts such as ethylene vinyl acetate copolymers, ethylene acrylic acid copolymers, ethylene ethyl acrylate copolymers, 6-, 6.6-, 11- or 12-nylon,
Films such as a polyethylene terephthalate isophthalate copolymer and a vinyl chloride vinyl acetate copolymer are exemplified. The appropriate shape of the repair tape is 3 to 50 mm in width and 0.05 to 0.50 mm in thickness.
【００１２】本発明方法において、押圧ローラーによる
補修テープの熱融着は、０．５〜５ｋｇｆ／ｃｍ2 の加
圧条件下に行なわれる。０．５ｋｇｆ／ｃｍ2 未満では
高速作業下で十分な熱融着接着強度が得られず、５ｋｇ
ｆ／ｃｍ2 を越えると均一平滑な表面が得難いので好ま
しくない。本発明方法において、真空吸引して補修テー
プを切断する際の真空度は３０〜６００ｍｍＨｇ、好ま
しくは１００〜４００ｍｍＨｇの範囲である。補修テー
プの真空吸引に使用される真空吸引装置としては従来公
知のものを使用することが可能であり、例えば溶接缶胴
間の間隔よりも大きく、径１５〜４０ｍｍ、一例として
２０〜５０ｍｍ程度の吸引ホースを吸引される補修テー
プの下方に隣接して簡易に設けることができる。In the method of the present invention, the heat-sealing of the repair tape by the pressing roller is performed under a pressure of 0.5 to 5 kgf / cm 2 . If it is less than 0.5 kgf / cm 2 , sufficient heat-sealing adhesive strength cannot be obtained under high-speed operation, and
If f / cm 2 is exceeded, it is difficult to obtain a uniform and smooth surface, which is not preferable. In the method of the present invention, the degree of vacuum when cutting the repair tape by vacuum suction is in the range of 30 to 600 mmHg, preferably 100 to 400 mmHg. As the vacuum suction device used for vacuum suction of the repair tape, it is possible to use a conventionally known device, for example, a diameter of 15 to 40 mm, for example, 20 to 50 mm, which is larger than the space between the welding can bodies. The suction hose can be easily provided adjacent to the lower side of the repair tape to be sucked.
【００１３】[0013]
【実施例】添附図面を参照し、本発明の実施例について
以下説明する。図１は、本発明方法を説明するための断
面略図であり、図２は本発明方法を説明するための溶接
継目部内面周縁の断面略図である。図１および図２にお
いて、複数個の１８リットル金属缶体用溶接缶胴１５
を、内ロール７，８および外ロール１１，１２を使用
し、溶接部１６を下面水平にして、２５ｍ／分の速度で
缶胴間の間隔３０ｍｍとして連続的に搬送し、溶接継目
部内面周縁を高周波加熱コイル５を用いて２００±２０
℃の温度に予熱すると同時にエチレン酢酸ビニル共重合
物のマレイン酸グラフトフィルムよりなる、厚さ１２０
μｍ、幅１８ｍｍの補修テープ（融点９０℃）１をテー
プガイド２を経て連続的に繰り出し、溶接部１６および
ラップエッジ部１７を包含する溶接継目部の内面に当接
させ、シリコーンゴム製押圧ロール９で、３ｋｇｆ／ｃ
ｍ2 の条件下に加圧熱融着させる。搬送隣接缶胴間にあ
り軟化状態の余剰補修テープは、搬送装置下方に設置さ
れた真空装置よりの真空度約３００ｍｍＨｇのバキュー
ムホース（径３０ｍｍ）６で吸引し、精密に切断除去回
収される。このようにして、自動的に余剰の補修テープ
は切断除去され、各缶胴は分離搬送され、次の加工工程
に回送される。尚この際得られた缶胴を二次加熱して更
に補修テープの接着強度を上昇させることも有効であ
る。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic cross-sectional view for explaining the method of the present invention, and FIG. 2 is a schematic cross-sectional view of the inner peripheral edge of the welded seam for explaining the method of the present invention. 1 and 2, a plurality of welded can bodies 15 for an 18-liter metal can body are shown.
Using the inner rolls 7, 8 and the outer rolls 11, 12, the welded portion 16 is horizontally transferred at a speed of 25 m / min at a spacing of 30 mm between the can bodies, and the inner peripheral edge of the welded seam portion. Using a high-frequency heating coil 5 for 200 ± 20
At a temperature of 120 ° C. and at the same time a maleic acid graft film of ethylene vinyl acetate copolymer,
A repair tape (melting point 90 ° C.) 1 having a width of 18 μm and a width of 18 mm is continuously fed out through a tape guide 2 and brought into contact with an inner surface of a welded seam portion including a welded portion 16 and a lap edge portion 17. 9 and 3kgf / c
Under the conditions of m 2 , heat and pressure are applied. The excess repair tape in the softened state between the adjacent can bodies is conveyed by a vacuum hose (diameter 30 mm) 6 having a degree of vacuum of about 300 mmHg from a vacuum device installed below the conveying device, and is precisely cut, removed and collected. In this way, the surplus repair tape is automatically cut and removed, and each can body is separated and conveyed, and sent to the next processing step. In this case, it is also effective to secondary heat the obtained can body to further increase the adhesive strength of the repair tape.
【００１４】[0014]
【発明の効果】高速連続搬送金属缶生産方式で溶接缶胴
側面の溶接継目部内面の耐食性、熱接着性補修テープに
よる補修を、新規な搬送隣接缶胴間の余剰補修テープ真
空切断除去方法を採用する事により精密適確な被覆状態
で簡易に能率的に実施することができる。又、溶剤や低
分子接着剤等の使用を必要とせず内容物汚染や環境対策
等の問題も解決される。According to the present invention, a method for producing a metal can in a high-speed continuous transfer can be used to repair the inner surface of a weld seam on the side of a welded can by using a repair tape with a heat-resistant adhesive. By adopting it, it is possible to easily and efficiently carry out a precise and accurate covering state. In addition, it does not require the use of a solvent, a low molecular adhesive, or the like, thereby solving problems such as contamination of contents and environmental measures.
【図１】本発明方法を説明するための断面略図である。FIG. 1 is a schematic sectional view for explaining a method of the present invention.
【図２】本発明方法を説明するための溶接継目部内面周
縁の断面略図である。FIG. 2 is a schematic cross-sectional view of an inner peripheral edge of a welded seam for explaining the method of the present invention.
１ 補修テープ ２ テープガイド ３，４ エアーシリンダー ５ 高周波加熱コイル ６ バキュームホース ７，８ 内ロール ９ 押圧ロール １０ 内ロール １１〜１４ 外ロール １５ 缶胴 １６ 溶接部 １７ ラップエッジ部 DESCRIPTION OF SYMBOLS 1 Repair tape 2 Tape guide 3,4 Air cylinder 5 High frequency heating coil 6 Vacuum hose 7,8 Inner roll 9 Press roll 10 Inner roll 11-14 Outer roll 15 Can body 16 Weld part 17 Lap edge part
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｊ 5/00 ＪＨＤ Ｃ０９Ｊ 5/00 ＪＨＤ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C09J 5/00 JHD C09J 5/00 JHD
Claims (1)
缶胴の溶接継目部内面がその長さ方向同一線上に配置さ
れる方向に、相互に一定の間隔を置いて、所定の速度
で、溶接継目部内面周縁を一定温度に予熱しながら連続
的に搬送し、同時に前記溶接缶胴の搬送速度に同調し、
テープガイドにより補修テープを連続的に繰り出して、
予熱された溶接継目部内面に当接させ、押圧ローラーに
より熱融着させる工程を連続的に行ない、該補修テープ
が溶接継目部内面先端周縁に熱融着された時点で、先行
する缶胴との間にあって軟化状態にある余剰補修テープ
を下方に真空吸引し、それぞれの溶接継目部内面端に沿
って精密に切断し除去する工程を順次行ない、金属缶体
用溶接缶胴の溶接継目部内面に補修テープを熱融着させ
ることを特徴とする金属缶体溶接継目部内面の補修方
法。A plurality of welding can bodies for metal can bodies are provided at predetermined intervals in a direction in which the inner surfaces of the welding seams of the welding can bodies are arranged on the same line in the longitudinal direction thereof. At the speed, the inner peripheral edge of the welding seam is continuously transported while being preheated to a constant temperature, and simultaneously tuned to the transport speed of the welding can body,
The repair tape is continuously fed out by the tape guide,
A step of contacting the inner surface of the pre-welded weld seam and continuously performing heat fusion with a pressing roller, at the time when the repair tape is heat-sealed to the peripheral edge of the inner surface of the weld seam, and the preceding can barrel The excess repair tape in the softened state between them is vacuum-sucked downward, and the steps of precisely cutting and removing along the edges of the inner surface of each weld seam are sequentially performed. A method for repairing the inner surface of a welded joint of a metal can body, which comprises heat-sealing a repair tape on the inner surface of the metal can body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29061695A JP2835704B2 (en) | 1995-10-13 | 1995-10-13 | Repair method for inner surface of welded joint of metal can body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29061695A JP2835704B2 (en) | 1995-10-13 | 1995-10-13 | Repair method for inner surface of welded joint of metal can body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09108752A true JPH09108752A (en) | 1997-04-28 |
| JP2835704B2 JP2835704B2 (en) | 1998-12-14 |
Family
ID=17758303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29061695A Expired - Fee Related JP2835704B2 (en) | 1995-10-13 | 1995-10-13 | Repair method for inner surface of welded joint of metal can body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2835704B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002102967A (en) * | 2000-07-27 | 2002-04-09 | Daiwa Can Co Ltd | Method of coating tape-shaped resin film on can body joint |
| JP2004195483A (en) * | 2002-12-17 | 2004-07-15 | Jfe Steel Kk | Repair tape for laminated can welding part and method for repairing laminated can welding part |
| JP2007253965A (en) * | 2006-03-22 | 2007-10-04 | Toyo Kohan Co Ltd | Correction tape for welded can welded zone, guide for correction tape, method for correcting welded can welded zone using them, and welded can with weled zone corrected by them |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5343350B2 (en) | 2007-12-06 | 2013-11-13 | パナソニック株式会社 | Lead acid battery |
| KR101947338B1 (en) | 2016-04-04 | 2019-02-12 | 신닛테츠스미킨 카부시키카이샤 | Manufacturing method and manufacturing line of press-formed article |
-
1995
- 1995-10-13 JP JP29061695A patent/JP2835704B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002102967A (en) * | 2000-07-27 | 2002-04-09 | Daiwa Can Co Ltd | Method of coating tape-shaped resin film on can body joint |
| JP2004195483A (en) * | 2002-12-17 | 2004-07-15 | Jfe Steel Kk | Repair tape for laminated can welding part and method for repairing laminated can welding part |
| JP2007253965A (en) * | 2006-03-22 | 2007-10-04 | Toyo Kohan Co Ltd | Correction tape for welded can welded zone, guide for correction tape, method for correcting welded can welded zone using them, and welded can with weled zone corrected by them |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2835704B2 (en) | 1998-12-14 |
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