JPH01254506A - 容器への蓋のヒートシール装置 - Google Patents

容器への蓋のヒートシール装置

Info

Publication number
JPH01254506A
JPH01254506A JP63075509A JP7550988A JPH01254506A JP H01254506 A JPH01254506 A JP H01254506A JP 63075509 A JP63075509 A JP 63075509A JP 7550988 A JP7550988 A JP 7550988A JP H01254506 A JPH01254506 A JP H01254506A
Authority
JP
Japan
Prior art keywords
lid
container
heat
heating
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63075509A
Other languages
English (en)
Inventor
Masayuki Kaji
鍛治　雅幸
Ryota Chikasawa
近沢　亮太
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP63075509A priority Critical patent/JPH01254506A/ja
Publication of JPH01254506A publication Critical patent/JPH01254506A/ja
Pending legal-status Critical Current

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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
    • B29C66/7465—Glass
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、容器、例えば流動性食品が収められるガラ
ス瓶のような容器の口縁部にヒートシール用積層材製蓋
の周縁部をヒートシールする装置に関する。
従来の技術 この種の装置は、一般に、熱盤で容器の口縁部に対し蓋
の周縁部を押圧するようにしている。
ところが、容器の口縁部に凹凸があると、凹凸のために
均一なシールを行うことができない。
そこで凹凸を吸収するために熱盤の下面をゴムのような
弾性体で被覆し、弾性体を介して蓋の周縁部を押圧する
ことも行われているが、弾性体は熱伝導性が悪いために
熱効率が悪く、熱盤で直接蓋の周縁部を押圧する場合と
比較して、熱盤をより高温に加熱しなければならない、
シール時間が余計に掛かるなどの問題点がある。
上記の問題点を解決する装置として、上記弾性体の下面
を金属薄板で被覆し、金属薄板を熱盤と熱的に接触させ
たもの（例えば特公昭６２−３１３７３号公報参照）や
、同金属薄板を弾性体内に埋め込むようにしたものが知
られている。
発明が解決しようとする課題 上記従来の装置のうち、弾性体の下面を金属薄板で被覆
したものは、シール作業の繰返しによって金属薄板が破
れるなど金属薄板の耐久性に難がある。
また、金属薄板を弾性体内に埋め込んだものは、やはり
熱効率上の問題点がある。
この発明の目的は、上記問題点を解決した容器への蓋の
ヒートシール装置を提供することにある。
課題を解決するための手段 この発明による容器への蓋のヒートシール装置は、容器
の口縁部に、これに被せられかつアルミニウム箔を有す
るヒートシール用積層材製蓋の周縁部をヒートシールす
る装置であって、容器の口縁部に対し蓋の周縁部を押圧
する押圧手段と、蓋の周縁部を加熱する加熱手段とを備
えており、加熱手段が、容器搬送コンベヤの搬送経路に
そってその搬送方向に順次配置されている予備加熱ヒー
タおよび本加熱ヒータよりなり、予備加熱ヒータが高周
波誘導加熱装置であるものである。
作　　用 容器に被せられている蓋は、コンベヤで搬送される間に
予備加熱ヒータおよび本加熱ヒータによって順次加熱さ
れる。したがって、ヒートシールのための加熱を２段階
に行うようにしているにもかかわらず、ヒートシール時
間が余分に掛かることもない。
高周波誘導加熱装置は、蓋の周縁部を短時間で効率良く
加熱し、容器に収められた内容物は加熱されることがな
い。
実　　施　　例 この発明の実施例を図面を参照してつぎに説明する。
容器搬送コンベヤ１１は、ガラス瓶のような剛性容器Ｃ
Ｉを、プレスステーション８１．キャッピングステーシ
ョンＳ２、予備加熱ステーションＳ３およびシールステ
ーションＳ４を順次経由して搬送するものである。
プレスステーションＳｔでは図示しないプレスによって
、例えば厚み４０〜６０μのアルミニウム箔の両面にポ
リエチレン層を形成した積層材製蓋材から皿状の蓋Ｃ２
が成形され、蓋Ｃ２はつぎのキャッピングステーション
Ｓ２で容器ＣＩに被せられる。
予備加熱ステーションＳ３には高周波誘導加熱装置１２
が配置され、シールステーションＳ４には昇降シールヘ
ッド１４が配置されている。また、予備加熱ステーショ
ンＳ３からシールステーション８４手前にかけて横断面
逆Ｕ字状の保温トンネル１４が容器移動経路をまたぐよ
うに設けられている。
高周波誘導加熱装置１２は、一般に良く知られたもので
あって、保温トンネル１４内において容器移動経路上方
に位置しかつ容器搬送方向に水平に配置されている高周
波コイル２１と、これに高周波電流を送る高周波発信器
２２とを有している。
シールヘッド１３は、第３図に詳しく示すように、図示
しない手段によって昇降させられる押圧部材３１と、こ
れの底部中央に配されている凸盤３２と、これの下面周
縁部を被覆している環状の弾性体３３と、弾性体３３の
周縁部に下側から係止した内方突出部３４ｇを有しかつ
押圧部材３１の下面に固定されている取付は部材３４と
よりなる。
容器Ｃ１に被せられたＭＣ２はトンネル１４内を通過す
る間に高周波誘導加熱装置１２によって予熱される。そ
の予熱温度は、４０〜２００℃、好ましくは６０〜９０
℃である。ついで容器Ｃ１およびＭＣ２がシールヘッド
１３の下方まで搬送されると、シールヘッド１３を降下
させてシールヘッド１３で例えば２秒間程度容器ＣＩの
口縁部に対し蓋Ｃ２の周縁部を押圧しかつ加熱する。こ
のときの加熱温度は例えば２４０℃である。
発明の効果 この発明によれば、蓋を予備加熱ヒータおよび本加熱ヒ
ータで加熱するようにしているから、本加熱ヒータで加
熱不足があるような場合でもこれを予備加熱ヒータで補
うことができる。
さらに、加熱を予備加熱および本加熱の２段階に分けて
行うようにしているにもかかわらず、その加熱は容器お
よびこれに被せられた蓋をコンベヤで搬送する間に行う
ようにしているから、ヒートシール時間が余分にかかる
ことがない。
また、予備加熱ヒータが高周波誘導加熱装置であるから
、蓋の周縁部のみを効率良く加熱することができ、容器
の内容物に悪影響を及ぼすことがない。゛
【図面の簡単な説明】
図面はこの発明の実施例を示し、第１゛図は垂直縦断面
図、第２図は第１図の■−■線にそう断面図、第３図は
第１図の一部を拡大して示すシールヘッドの断面図であ
る。 １１・・・コンベヤ、１２・・・高周波誘導加熱装置、
１３・・・シールヘッド、ＣＩ・・・容器、Ｃ２・・・
蓋。 以　　上

Claims (1)

    【特許請求の範囲】
  1. 容器Ｃ１の口縁部に、これに被せられかつアルミニウム
    箔を有するヒートシール用積層材製蓋Ｃ２の周縁部をヒ
    ートシールする装置であって、容器Ｃ１の口縁部に対し
    蓋Ｃ２の周縁部を押圧する押圧手段と、蓋Ｃ２の周縁部
    を加熱する加熱手段とを備えており、加熱手段が、容器
    搬送コンベヤ１１の搬送経路にそってその搬送方向に順
    次配置されている予備加熱ヒータおよび本加熱ヒータよ
    りなり、予備加熱ヒータが高周波誘導加熱装置１２であ
    る、容器への蓋のヒートシール装置。
JP63075509A 1988-03-28 1988-03-28 容器への蓋のヒートシール装置 Pending JPH01254506A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63075509A JPH01254506A (ja) 1988-03-28 1988-03-28 容器への蓋のヒートシール装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63075509A JPH01254506A (ja) 1988-03-28 1988-03-28 容器への蓋のヒートシール装置

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321934A (en) * 1992-10-02 1994-06-21 Bech Johan N Method of sealing jars
US6725630B2 (en) 2001-11-15 2004-04-27 Sonoco Development, Inc. Method for induction sealing a plastic part to a composite container
JP2007261665A (ja) * 2006-03-29 2007-10-11 Kirin Holdings Co Ltd 密封容器の製造方法、容器密封システム及び蓋溶接機

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6218404A (ja) * 1985-07-17 1987-01-27 Toyo Kogyo Kk 導電性ポリマ−及びその製造法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6218404A (ja) * 1985-07-17 1987-01-27 Toyo Kogyo Kk 導電性ポリマ−及びその製造法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321934A (en) * 1992-10-02 1994-06-21 Bech Johan N Method of sealing jars
US6725630B2 (en) 2001-11-15 2004-04-27 Sonoco Development, Inc. Method for induction sealing a plastic part to a composite container
JP2007261665A (ja) * 2006-03-29 2007-10-11 Kirin Holdings Co Ltd 密封容器の製造方法、容器密封システム及び蓋溶接機

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