MOULDING amp; FEEDING A THERMOPLASTIC WEB TO CONTINUOUSLY MOVING WEB THERMO FORMING MEANS

摘要

PCT No. PCT/AU84/00227 Sec. 371 Date Jul. 8, 1985 Sec. 102(e) Date Jul. 8, 1985 PCT Filed Nov. 7, 1984 PCT Pub. No. WO85/02142 PCT Pub. Date May 23, 1985.A web of molten thermoplastics material (4) from extruder die (3) is fed through a pair of temperature controlled rolls (5) having a gap (13) of width less than that of the web thickness leaving the extruder die (3) and is fed from the rolls (5) directly and continuously under uniform tension to a thermoforming machine (9) (10) as a formable web (6) of substantially uniform temperature through its thickness.