Treating structural cellular materials.

摘要

The invention relates to making expanded "honeycomb" filled panels consisting of two sheets of facing material between which is sandwiched an expanded structural cellular material. An automatic system for forming such panels includes a conveyor (4) for feeding unexpanded material (16) to an expander and cutter unit (2). The expanded material is cut to fit a sheet (1) passing cutter unit (2) on a further conveyor (10). The expanded and cut material (8) is pressed onto sheet (1) by means of a roller (6). The process may be synchronised by the interaction of the leading edge of a sheet (1) and a tripswitch (50).