JP2011152725A - 高分子材料の超音波接合方法およびその装置 - Google Patents
高分子材料の超音波接合方法およびその装置 Download PDFInfo
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
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- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
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- B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9221—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
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- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
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Abstract
【解決手段】超音波振動を与えるホーン16とホーン16に相対するアンビル18との間に高分子材料40a,40bを挟んで加圧し、高分子材料40a,40bの接触界面40cに超音波振動を与えることにより高分子材料40a,40bをその接触界面40cで接合する超音波接合装置10において、アンビル18の少なくとも一部を赤外線透過体22で構成するとともに赤外線透過体22を透過した赤外線Rを検知する赤外線放射温度計36を設け、高分子材料40a,40bの超音波接合時にその接合界面40dから放射されるとともに高分子材料40bおよび赤外線透過体22を透過した赤外線Rにより、超音波接合時における接合界面の温度を測定する。
【選択図】図2
Description
図7に示すように、厚さ5mmのNaCl板(22)の上に厚さ188μmのPETフィルム(40b)を載置し、このPETフィルム(40b)の上に厚さ10mmの赤外線を通さない板状のシリコンゴム(42)を載置し、このシリコンゴム(42)の上にアルミブロック(44)を載置し、このアルミブロック(44)の上にブロックヒーター(46)を載置した。次いで、PETフィルム(40b)とシリコンゴム(42)との間の、赤外線放射温度計(36)により温度検知する領域外に、熱電対(48)を挿入し、シリコンゴム(42)の表面にポリイミドテープを用いて熱電対(48)を貼り付けた。次いで、アルミブロック(44)を介してブロックヒーター(46)でシリコンゴム(42)を所定温度に加熱した。なお、アルミブロック(44)はシリコンゴム(42)を均一に加熱するために設置している。
(実施例1)
図1に示す構成の超音波接合装置を用い、上記PETフィルムと同じPETフィルム(厚さ188μm)の超音波接合を行った。具体的には、図2に示すように、赤外線透過体であるNaCl板(厚さ5mm)上にPETフィルムを2枚重ねて載置した。次いで、振幅14μm、ホーン荷重23Nの条件下で10秒間超音波接合を行った。この際、赤外線放射温度計により、超音波接合時における接合界面の温度を測定した。より具体的には、超音波接合時に接合界面から放射され、PETフィルムおよびNaCl板を透過し、赤外線反射ミラーにより反射された赤外線を赤外線放射温度計で検出することにより、超音波接合時における接合界面の温度を測定した。次いで、図8のグラフをもとにこの測定温度を実温度に変換し、さらに、室温(23℃)との温度差(上昇温度ΔT℃)に変換して、経過時間(Time)と上昇温度ΔTとの関係を求めた。その結果を図9(グラフ2)に示した。
超音波接合条件(振幅、ホーン荷重)を変更した以外は、実施例1と同様にして超音波接合を行い、このときの経過時間(Time)と上昇温度ΔTとの関係を求めた。その結果を図10(グラフ3)、図11(グラフ4)に示した。
12 発振器
14 振動子
16 ホーン
18 アンビル
20 押圧部
22 赤外線透過体
32 赤外線反射ミラー
36 赤外線放射温度計
40a、40b 高分子材料
40c 接触界面
40d 接合界面
R 赤外線
Claims (5)
- 超音波接合する高分子材料を載置するアンビルの少なくとも一部に赤外線透過体を用い、前記高分子材料の超音波接合時にその接合界面から放射された赤外線を該赤外線透過体を介して検知して、前記超音波接合時における接合界面の温度を測定することを特徴とする高分子材料の超音波接合方法。
- 前記超音波接合時における接合界面の温度を測定するための赤外線は、前記高分子材料の接合界面に直交する方向に放射された赤外線であることを特徴とする請求項1に記載の高分子材料の超音波接合方法。
- 前記超音波接合時における接合界面の温度は、前記高分子材料および前記赤外線透過体を介して赤外線放射温度計により測定された被測定物の測定温度と、前記被測定物の実温度と、の関係式を用いて算出することを特徴とする請求項1または2に記載の高分子材料の超音波接合方法。
- 超音波振動を与えるホーンと該ホーンに相対するアンビルとの間に高分子材料を挟んで加圧し、前記高分子材料の接触界面に超音波振動を与えることにより前記高分子材料をその接触界面で接合する高分子材料の超音波接合装置において、
前記アンビルの少なくとも一部を赤外線透過体で構成するとともに、前記高分子材料の超音波接合時にその接合界面から放射された赤外線を該赤外線透過体を介して検知する赤外線放射温度計を設けたことを特徴とする高分子材料の超音波接合装置。 - 前記赤外線透過体は、前記アンビルの前記ホーンに相対する部分に用いられており、前記ホーンおよび前記赤外線透過体を通る直線上に前記赤外線放射温度計が配置されている、あるいは、前記ホーンおよび前記赤外線透過体を通る直線上に赤外線反射ミラーが配置されるとともにその赤外線反射ミラーの反射先に前記赤外線放射温度計が配置されていることを特徴とする請求項4に記載の高分子材料の超音波接合装置。
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JP2000202644A (ja) * | 1999-01-19 | 2000-07-25 | Sumitomo Wiring Syst Ltd | 超音波溶接の良否判別方法 |
JP2004174794A (ja) * | 2002-11-26 | 2004-06-24 | Shimane Pref Gov | 超音波振動加熱の可視化方法 |
JP2004345178A (ja) * | 2003-05-21 | 2004-12-09 | Sanko Gosei Ltd | 溶着加工製品及びその溶着部検査方法 |
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JP2000202644A (ja) * | 1999-01-19 | 2000-07-25 | Sumitomo Wiring Syst Ltd | 超音波溶接の良否判別方法 |
JP2004174794A (ja) * | 2002-11-26 | 2004-06-24 | Shimane Pref Gov | 超音波振動加熱の可視化方法 |
JP2004345178A (ja) * | 2003-05-21 | 2004-12-09 | Sanko Gosei Ltd | 溶着加工製品及びその溶着部検査方法 |
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JP2018122348A (ja) * | 2017-02-03 | 2018-08-09 | 日本アビオニクス株式会社 | 超音波接合装置及びそのホーン交換報知装置 |
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