초록 ▼

A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by fir

A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solidified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the lines of adhesive and bond the layers together. Finally, the stacked tubular material is cooled to form a unitary stack of tubular, expandable honeycomb material. A device for performing the process as described above is also disclosed.

대표청구항 ▼

A process for forming spools of folded generally flat tubular material for producing expandable honeycomb material, said process comprising the steps of: heating the surface of a continuous strip of material to be used as honeycomb material; applying adhesive in a plurality of lines along the length

A process for forming spools of folded generally flat tubular material for producing expandable honeycomb material, said process comprising the steps of: heating the surface of a continuous strip of material to be used as honeycomb material; applying adhesive in a plurality of lines along the length of said continuous strip of material; chilling said material after application of said adhesive to cool and solidify said adhesive; cutting the width of said material into continuous tapes each being approximately twice the width of the desired expandable honeycomb material; and folding each said tape longitudinally along opposite lateral side portions into a generally flat tubular form having upper and lower layers with lines of adhesive being disposed on the surface of each said upper and lower layer.