METHOD AND DEVICE FOR WELDING THERMOPLASTIC RESIN ARTICLES
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
Jan 29, 2009
filing date -
Feb 5, 2008
priority date (Note) -
Abandoned
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Abstract
A plurality of thermoplastic articles are superimposed against a support, an infrared transparent solid is superimposed to form a superimposed body and infrared is irradiated to the superimposed body from the side of the infrared transparent solid. For the irradiation source, an Er: YAG laser or fiber laser is used. The interface temperature of the thermoplastic article becomes relatively lower and a high temperature region can be developed within the superimposed body due to the infiltration of laser energy. As a result, degradation of the surface configuration due to thermal damages in the infrared irradiation side surface layer of the thermoplastic articles can be suppressed.
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