15. In-line thermoforming
In in-line thermoforming, avoiding the reel stage leads to substantial savings in :
labor costs ;
scrap (no banks) and direct in-line recycling ;
overall energy consumption ;
handling and storage costs.
Systems differ according to the type of thermoforming (depth) and the polymers (amorphous – crystalline).
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Direct extrusion on a large-diameter drum cylinder: this acts as a draw-roller, cooling unit and mold-holder: objects are vacuum-thermoformed row by row, then die-cut in the next step (figure 35 ). This system is ideally suited to the manufacture...
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In-line thermoforming
Quality Control – SPC – Quality Management
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