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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
Bibliography
Software tools
Contour TM Die (EDI)
BEMflow, Boundary Element Fluid and Heat Transfer Simulation Program
Inverted preland Die (Cloeren)
Websites
Octal
Rauwendall
The Madison Group
Verbruggen...
Standards and norms
- Management environnemental. Exigences et lignes directrices pour son utilisation. - ISO 14000 - Nov. 2004
- Food safety management systems – Requirements for all organisms in the food chain. - NF EN ISO 22000 - Oct. 2005
Directory
Manufacturers – suppliers (non-exhaustive list)
Robert Barr, Inc.
HPM
Extrusion Dies Industry, LLC
Statistical and economic data
Figure 1 compares the performance of two equivalent systems in terms of instantaneous available flow:
1 production unit, 1,300 kg/h, investment value €1.5 M ;
2 production units...
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