JP2000516873A - 熱可塑性加工片の超音波溶接中に於ける振幅及び力の同時プロフィール制御 - Google Patents
熱可塑性加工片の超音波溶接中に於ける振幅及び力の同時プロフィール制御Info
- Publication number
- JP2000516873A JP2000516873A JP54733698A JP54733698A JP2000516873A JP 2000516873 A JP2000516873 A JP 2000516873A JP 54733698 A JP54733698 A JP 54733698A JP 54733698 A JP54733698 A JP 54733698A JP 2000516873 A JP2000516873 A JP 2000516873A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- horn
- vibration amplitude
- weld
- force
- 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
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Classifications
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- 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
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- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
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- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
- B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
- B06B1/0253—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken directly from the generator circuit
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
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- B29C65/82—Testing the joint
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
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- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C2793/00—Shaping techniques involving a cutting or machining operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
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- 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
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- Polymers & Plastics (AREA)
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.共通の界面に沿って互いに接合されるべき二つ又はそれ以上の熱可塑性部材 の間の溶接部の強度を改善し溶接サイクル時間を低減する方法であって、溶接サ イクル時間中に超音波周波数にて共振状態にもたらされるホーンが前記共通の界 面に沿って互いに接触する前記部材に対し係合力及び超音波エネルギを付与する 方法にして、前記ホーンを前記溶接サイクル時間の第一の部分の間第一の振動振 幅にて共振状態にもたらす工程と、前記溶接サイクル時間の前記第一の部分の間 前記係合力を第一のレベルにて付与する工程と、前記溶接サイクル時間のうちの 所定の時間が経過した後に前記係合力を低下させると共に前記溶接サイクル時間 のうちの残りの時間の間前記ホーンを第二の振動振幅にて共振状態にもたらす工 程とを含み、これにより前記溶接部の強度を向上させ前記溶接サイクル時間を低 減することを特徴とする方法。 2.前記第二の振動振幅は前記第一の振動振幅よりも小さいことを特徴とする請 求項1に記載の方法。 3.実質的に剛固な二つの熱可塑性部材を互いに溶接するための超音波エネルギ による処理方法であって、前記部材は互いに積層され、前記二つの部材のうちの 上側の部材には所定の時間の間前記積層された部材に対し超音波エネルギを伝達 するよう構成されたホーンが係合し、前記積層された部材は適当なアンビル上に 支持され、各部材は他方の 部材に対し接合されるべき表面を有し、一方の部材の前記表面はエネルギディレ クタを有する方法にして、前記エネルギディレクタ及び前記部材の前記表面を第 一の加熱速度にて加熱すべく、前記所定の時間のうちの第一の部分の間第一の振 動振幅にて前記ホーンを付勢する工程と、前記エネルギディレクタを圧縮し前記 ホーンと前記積層された部材との間の接触状態を維持するに十分な第一の係合力 にて前記ホーンを前記積層された部材に係合させる工程と、前記エネルギディレ クタの溶融及び崩壊に応答して信号を発生すると共に、前記係合力を受けた状態 にて前記表面を互いに溶接するに十分な温度に前記第一の加熱速度よりも低い第 二の加熱速度にて前記二つの部材の前記表面を継続して加熱すべく、前記信号に 応答して前記振動振幅を低下させると共に前記所定の時間のうちの残りの時間の 間前記ホーンに対し第二の係合力を与える工程とを含んでいることを特徴とする 方法。 4.前記振動振幅を低下させる前記工程は溶接後の前記部材の前記表面の間の視 認可能なフラッシュを低減することを特徴とする請求項4に記載の方法。 5.前記振動振幅を低下させる前記工程は前記部材の前記表面の間の前記溶接部 内の小孔を低減することを特徴とする請求項3に記載の方法。 6.前記振動振幅を低下させる前記工程は溶接後の前記部材の前記表面の間の前 記熱可塑性材料の重合体連鎖の配向 の無作為性を増大させ、これにより前記溶接部の引張り強度を向上させることを 特徴とする請求項3に記載の方法。 7.前記振動振幅を低下させる前記工程は前記溶接部内の残留応力を低減するこ とを特徴とする請求項3に記載の方法。 8.前記第二の係合力は前記第一の係合力よりも低いことを特徴とする請求項3 に記載の方法。 9.前記第一の係合力は溶接サイクル時間を低減することを特徴とする請求項8 に記載の方法。 10.前記第二の係合力を与える前記工程は前記溶接部内の溶融された材料の流 速を変化させることを特徴とする請求項8に記載の方法。 11.前記第二の係合力を与える前記工程は溶接後の前記部材の前記表面の間の 前記熱可塑性材料の重合体連鎖の配向の無作為性を増大させ、これにより前記溶 接部の引張り強度を向上させることを特徴とする請求項8に記載の方法。 12.共通の界面に沿って溶接サイクル中に二つの熱可塑性加工片を互いに超音 波エネルギによって溶接する方法にして、所定の超音波周波数にて共振状態にな るよう構成されたホーンを用意する工程と、初期係合力にて前記ホーンを前記加 工片と係合させる工程と、前記界面に対し超音波振動を伝達し、超音波エネルギ の消散によって前記界面に於て熱可塑性材料の軟化及び流動化を惹き起すよう、 前記ホーンを前記所定の超音波周波数の振動振幅にて共振状態 にもたらす工程と、前記溶接サイクル全体に亘り所定の力プロフィールに従って 前記係合力を変化させる工程と、前記係合力の変化と同時に所定の振動振幅プロ フィールに従って前記ホーンの前記振動振幅を変化させる工程とを含んでいるこ とを特徴とする方法。 13.前記所定の力プロフィールは溶接強度を向上させると共に前記溶接サイク ル時間を低減するよう選定されることを特徴とする請求項12に記載の方法。 14.前記所定の振動振幅プロフィールは前記界面に於ける加熱を最適化するよ う選定されることを特徴とする請求項12に記載の方法。 15.前記所定の振動振幅プロフィールは前記溶接部内の重合体連鎖の整合を無 作為にして溶接強度を向上させると共に残留応力を低減するよう選定されること を特徴とする請求項12に記載の方法。 16.高周波振動超音波装置を使用して加工サイクル中熱可塑性加工片を加工す る方法であって、前記超音波装置は共振する寸法に設定され且つ加工されるべき 加工片に対し押し付けられるホーンに高周波振動を伝達する電気音響変換器を含 む方法にして、前記ホーン及び前記加工片を強制的に接触した状態にもたらす工 程と、前記ホーンが所定の振動振幅にて共振状態になるよう前記電気音響変換器 を作動させる工程と、前記加工サイクル全体に亘り所定の力プロフィールに従っ て前記ホーンと前記加工片との間の強制 的触状態を変化させる工程と、前記加工サイクル全体に亘り所定の振動振幅プロ フィールに従って前記ホーンの振動振幅を変化させる工程とを含んでいることを 特徴とする方法。 17.高周波振動超音波装置を使用して溶接サイクル中二つの熱可塑性加工片を 互いに溶接する方法であって、前記超音波装置は共振する寸法に設定され且つ溶 接されるべき少なくとも一方の加工片に対し押し付けられるホーンに高周波振動 を伝達する電気音響変換器を含む方法にして、前記加工片が少なくとも形成され るべき溶接線を形成する領域に沿って互いに係合するよう前記ホーン及び前記加 工片を強制的に接触した状態にもたらす工程と、前記ホーンが所定の振動振幅に て共振状態になるよう前記電気音響変換器を作動させる工程と、前記溶接サイク ル全体に亘り所定の力プロフィールに従って前記ホーンと前記一方の加工片との 間の強制的触状態を変化させる工程と、前記溶接サイクル中所定の振動振幅プロ フィールに従って前記ホーンの振動振幅を変化させる工程とを含んでいることを 特徴とする方法。 18.前記ホーンの前記強制的接触状態を変化させる前記工程は、実質的に前記 溶接線の範囲内にて前記加工片の少なくとも一部の加熱及び溶融を促進すべく、 接触力の第一の範囲内にて前記溶接サイクルの第一の部分の間前記電気音響変換 器を前記加工片と接触させ、次いで前記加工片を 互いに溶接するに十分な前記溶接線の全体領域に於て前記電気音響変換器を前記 加工片と接触した状態に維持すべく、接触力の他の一つの範囲内にて前記電気音 響変換器を前記加工片と接触させる工程を含んでいることを特徴とする請求項1 7に記載の方法。 19.前記ホーンの前記振動振幅を変化させる前記工程は、実質的に前記溶接線 の範囲内にて前記加工片の少なくとも一部を予熱すべく、パワーレベルの第一の 範囲内にて前記溶接サイクルの第一の部分の間前記電気音響変換器を作動させ、 次いで前記加工片を互いに溶接するに十分な温度まで前記溶接線の全体領域に於 て前記二つの加工片を加熱すべく、パワーレベルの他の一つの範囲内に於て前記 溶接サイクルの残りの部分の間前記電気音響変換器を作動させることを含んでい ることを特徴とする請求項17に記載の方法。 20.前記溶接サイクルの前記第一の部分の間前記電気音響変換器を作動させる 前記工程は、前記加工片の前記少なくとも一部を予熱するよう全振動振幅の実質 的に5%より実質的に80%まで前記電気音響変換器の振動振幅を徐々に増大さ せることを含んでいることを特徴とする請求項19に記載の方法。 21.前記溶接サイクルの前記第一の部分の間前記電気音響変換器を作動させる 前記工程は、前記溶接線に沿って前記加工片を少なくとも部分的に溶融させるべ くパワーレベ ルの前記第一の範囲内にて前記パワーレベルを低いレベルより高いレベルへ徐々 に増大させることを含んでいることを特徴とする請求項19に記載の方法。 22.前記電気音響変換器の振動振幅は全振動振幅の実質的に10%より実質的 に40%まで徐々に増大されることを特徴とする請求項21に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/848,683 | 1997-04-29 | ||
| US08/848,683 US5855706A (en) | 1992-04-21 | 1997-04-29 | Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces |
| PCT/US1998/008637 WO1998049009A1 (en) | 1997-04-29 | 1998-04-29 | Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000516873A true JP2000516873A (ja) | 2000-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54733698A Ceased JP2000516873A (ja) | 1997-04-29 | 1998-04-29 | 熱可塑性加工片の超音波溶接中に於ける振幅及び力の同時プロフィール制御 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5855706A (ja) |
| EP (1) | EP0914253A4 (ja) |
| JP (1) | JP2000516873A (ja) |
| KR (1) | KR20000022315A (ja) |
| CA (1) | CA2253189C (ja) |
| WO (1) | WO1998049009A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011505710A (ja) * | 2008-11-12 | 2011-02-24 | コリア アドバンスト インスティテュート オブ サイエンス アンド テクノロジー | 接着剤の発熱温度調節による電子部品間の接続方法及び接着剤の発熱温度調節による電子部品間の接続装置 |
| JP2021527580A (ja) * | 2018-06-13 | 2021-10-14 | デューケイン アイエーエス エルエルシー | 所定の溶着強度との相関関係に基づいてそれに関連する溶融層厚さを特定する方法 |
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1997
- 1997-04-29 US US08/848,683 patent/US5855706A/en not_active Expired - Lifetime
-
1998
- 1998-04-29 EP EP98919992A patent/EP0914253A4/en not_active Withdrawn
- 1998-04-29 WO PCT/US1998/008637 patent/WO1998049009A1/en not_active Ceased
- 1998-04-29 KR KR1019980710738A patent/KR20000022315A/ko not_active Withdrawn
- 1998-04-29 JP JP54733698A patent/JP2000516873A/ja not_active Ceased
- 1998-04-29 CA CA002253189A patent/CA2253189C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011505710A (ja) * | 2008-11-12 | 2011-02-24 | コリア アドバンスト インスティテュート オブ サイエンス アンド テクノロジー | 接着剤の発熱温度調節による電子部品間の接続方法及び接着剤の発熱温度調節による電子部品間の接続装置 |
| JP2021527580A (ja) * | 2018-06-13 | 2021-10-14 | デューケイン アイエーエス エルエルシー | 所定の溶着強度との相関関係に基づいてそれに関連する溶融層厚さを特定する方法 |
| JP7443259B2 (ja) | 2018-06-13 | 2024-03-05 | デューケイン アイエーエス エルエルシー | 所定の溶着強度との相関関係に基づいてそれに関連する溶融層厚さを特定する方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998049009A1 (en) | 1998-11-05 |
| US5855706A (en) | 1999-01-05 |
| CA2253189C (en) | 2002-02-19 |
| EP0914253A1 (en) | 1999-05-12 |
| CA2253189A1 (en) | 1998-11-05 |
| EP0914253A4 (en) | 2004-04-07 |
| KR20000022315A (ko) | 2000-04-25 |
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