| 摘要 |
An impulse heat sealing machine for forming a liquid leakproof seal joining flexible thermoplastic resin films includes a platen which compresses the films under pressure, an etched foil heater carried by the platen and protected by a non-sticking sheet, and timers which determine the timing for the platen to compress the films, impulse heat seal the films, cool the joined films under pressure, and release the platen pressure.
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