JP2000158539A - 超音波振動によるプラスチック部材の接合方法 - Google Patents
超音波振動によるプラスチック部材の接合方法Info
- Publication number
- JP2000158539A JP2000158539A JP10355398A JP35539898A JP2000158539A JP 2000158539 A JP2000158539 A JP 2000158539A JP 10355398 A JP10355398 A JP 10355398A JP 35539898 A JP35539898 A JP 35539898A JP 2000158539 A JP2000158539 A JP 2000158539A
- Authority
- JP
- Japan
- Prior art keywords
- horn
- plastic
- vibration
- plastic member
- sheets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- 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
- B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
-
- 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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- 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
-
- 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
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
る場合に、そのプラスチック部材が柔軟で振動が減衰し
て十分に発熱しなくても、それを補って確実に接合でき
る方法を提供する。 【解決手段】 超音波振動子と接合しようとするプラス
チック部材との間に介在して超音波振動子の振動をプラ
スチック部材へ伝達するホーンを加熱することを特徴と
する。
Description
ラスチック部材の接合方法に関する。
として外部発熱方式のヒートシールと内部発熱方式の高
周波接合とがある。ヒートシールは簡単な装置で低コス
トで実施できるという利点がある反面、熱伝導率の低い
プラスチック部材には使用できないという欠点がある。
また、高周波接合はプラスチック部材を高周波電界中に
おいて内部発熱させることにより融着させるものであ
り、接合力が大きく且つ美しく接合できるという利点が
ある反面、誘電損の小さいプラスチック部材には適して
いないという短所がある。
に超音波接合がある。超音波接合は高周波接合に比べて
材料の制約が少なく、ほとんどすべてのプラスチック部
材を接合できるという利点があるが、接合しようとする
プラスチック部材が柔らかい場合は振動が減衰するので
発熱が不十分となって接合しにくくなるという問題があ
る。
によりプラスチック部材を接合する場合に、そのプラス
チック部材が柔軟で振動が減衰して十分に発熱しなくて
も、それを補って確実に接合できる方法の提供を課題と
する。
に、本発明の超音波振動によるプラスチック部材の接合
方法は、超音波振動子と接合しようとするプラスチック
部材との間に介在して超音波振動子の振動をプラスチッ
ク部材へ伝達するホーンを加熱することを特徴とするも
のである。
ート1,2を接合する状態を示したものである。なお、
プラスチックとしてはポリオレフィン系樹脂、ポリアミ
ド系樹脂、又はポリエステル系樹脂などの焼却時に有毒
ガスを発生しない材料を用いるのが望ましい。
一般的に使用されている超音波溶接装置、例えば超音波
ウェルダーなどの構成部材であるホーン3に加熱手段を
付加した装置を使用することになる。図示した装置は、
ホーン3にヒータ4を取付けたものであるが、加熱手段
はこれに限定するものではない。
動される振動子5の振動をプラスチックシート1,2に
伝達してプラスチックシート1,2を振動させることに
より摩擦熱を発生させ、その熱によってプラスチックシ
ート1,2の温度を融点以上に高めることにより融着に
よる接合を可能とするものである。
チックシート1,2によって減衰されてプラスチックシ
ート1,2が十分に発熱しないと接合が困難になる。
分な発熱を補うために、振動と共に熱エネルギーもホー
ン3からプラスチックシート1,2に対し熱伝導によっ
て供給するようにしたものである。
るプラスチック部材の融点以下であるが、この熱はプラ
スチック部材の自己発熱を補うものであるから、プラス
チック部材の自己発熱による温度との関係で決まる。す
なわち、常温をT1 、プラスチック部材の自己発熱によ
る上昇温度をT2 、ホーン3からプラスチック部材へ供
給される熱エネルギーによる上昇温度をT3 、プラスチ
ック部材の融点をT4とするとT1 +T2 +T3 ≧T4
の関係式を満たす必要がある。また、プラスチック部材
の自己発熱による上昇温度T2 は振動の減衰率と関係
し、さらに、その減衰率はプラスチック部材の弾性率や
肉厚とも関係し、又、ホーン3からプラスチック部材へ
供給される熱エネルギーによる上昇温度T3 はホーン3
とプラスチック部材間の熱伝導率やプラスチック部材の
比熱などとも関係するので、ホーン3の加熱温度を一概
に特定することはできないが、一例を揚げれば、プラス
チック部材が例えばポリエチレンやポプロピレン等のポ
リオレフィン系樹脂の場合は凡そ50℃〜120℃程度
が好ましい。
部材の接合方法は上記の通りであり、ホーンから伝達さ
れる超音波振動が減衰してプラスチック部材の自己発熱
が不十分であっても、加熱されたホーンから熱伝導によ
って供給される熱が不足分を補ってプラスチック部材の
温度を融点以上に上昇させるので、プラスチック部材を
確実に接合させることができる。
側面図である。
Claims (1)
- 【請求項1】 超音波振動子と接合しようとするプラス
チック部材との間に介在して超音波振動子の振動をプラ
スチック部材へ伝達するホーンを加熱することを特徴と
する超音波振動によるプラスチック部材の接合方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10355398A JP2000158539A (ja) | 1998-11-30 | 1998-11-30 | 超音波振動によるプラスチック部材の接合方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10355398A JP2000158539A (ja) | 1998-11-30 | 1998-11-30 | 超音波振動によるプラスチック部材の接合方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000158539A true JP2000158539A (ja) | 2000-06-13 |
Family
ID=18443716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10355398A Pending JP2000158539A (ja) | 1998-11-30 | 1998-11-30 | 超音波振動によるプラスチック部材の接合方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000158539A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2327534A1 (de) * | 2009-11-25 | 2011-06-01 | Telsonic Holding AG | Vorrichtung und Verfahren zum Verschweißen von Werkstücken |
DE102018214127A1 (de) * | 2018-08-21 | 2020-02-27 | Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg | Folienverpackung mit durch unterschiedliche Siegelverfahren gebildeter Kombinations-Heißsiegelzone und Siegelwerkzeug hierfür |
-
1998
- 1998-11-30 JP JP10355398A patent/JP2000158539A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2327534A1 (de) * | 2009-11-25 | 2011-06-01 | Telsonic Holding AG | Vorrichtung und Verfahren zum Verschweißen von Werkstücken |
DE102018214127A1 (de) * | 2018-08-21 | 2020-02-27 | Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg | Folienverpackung mit durch unterschiedliche Siegelverfahren gebildeter Kombinations-Heißsiegelzone und Siegelwerkzeug hierfür |
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