JP5064986B2 - 光線溶着装置及び光線溶着方法 - Google Patents
光線溶着装置及び光線溶着方法 Download PDFInfo
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- 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
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- B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81266—Optical properties, e.g. transparency, reflectivity
- B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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Description
Claims (5)
- 照射光線に対して透過性を有し溶着部が設けられた第1の樹脂部材と前記照射光線に対して前記第1の樹脂部材に対する透過性より小さい透過性を有し溶着部が設けられた第2の樹脂部材とを前記照射光線によって溶着する光線溶着装置であって、
前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けると共に透明材料によって形成された押さえ治具と、
前記押さえ治具及び前記第1の樹脂部材を透過する前記照射光線を前記第2の樹脂部材の前記溶着部に照射する光源とを備え、
前記押さえ治具に、前記第1の樹脂部材に接して該第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を加熱して軟化させ前記第1の樹脂部材の前記溶着部と前記第2の樹脂部材の前記溶着部とを密着させると共に透明材料によって形成された発熱体を設けた
ことを特徴とする光線溶着装置。 - 前記発熱体によって加熱された前記第1の樹脂部材の前記溶着部の温度が、ガラス転移温度以上、荷重たわみ温度未満になるようにした
ことを特徴とする請求項1に記載の光線溶着装置。 - 前記発熱体から赤外光を発するようにし、
前記赤外光の波長領域を2.5μm以上30μm以下とした
ことを特徴とする請求項1又は請求項2に記載の光線溶着装置。 - 照射光線に対して透過性を有し溶着部が設けられた第1の樹脂部材と前記照射光線に対して前記第1の樹脂部材に対する透過性より小さい透過性を有し溶着部が設けられた第2の樹脂部材とを前記照射光線によって溶着する光線溶着方法であって、
透明材料によって形成された押さえ治具を用いて前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付ける押付工程と、
前記押さえ治具によって前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けた状態において、透明材料で形成され前記第1の樹脂部材に接するように前記押さえ治具に設けられた発熱体によって加熱することにより前記第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を軟化させて前記溶着部同士を密着する加熱工程と、
光源から前記照射光線を前記押さえ治具及び前記第1の樹脂部材を透過させて前記第2の樹脂部材の前記溶着部に照射し前記第1の樹脂部材と前記第2の樹脂部材を溶着する溶着工程とを備えた
ことを特徴とする光線溶着方法。 - 前記溶着工程の後工程として、前記発熱体によって加熱することにより前記第1の樹脂部材と前記第2の樹脂部材をアニールするアニール工程を備えた
ことを特徴とする請求項4に記載の光線溶着方法。
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