Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With gas – vapor – or flame contact means for work
Patent
1976-11-22
1979-05-22
Massie, Jerome W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With gas, vapor, or flame contact means for work
83 53, 83177, 156499, 156529, 156538, B26F 126
Patent
active
041558006
ABSTRACT:
An adhesive sheet or film placed in contact with a surface network formed by the edges of the cell walls of a honeycomb core panel is reticulated and conformed to the shape of the surface network to form a bead of adhesive on the surface network and the contiguous portions of the cell walls without depositing excess adhesive onto the interior cell walls. A method for reticulating the adhesive includes the steps of (a) contacting the surface network of a honeycomb core panel with a continuous film of adhesive material, (b) heating the film overlying at least a portion of the surface network to cause the heated portion of the adhesive film to adhere to the surface network and to reduce the cohesive strength of the heated portion of the adhesive film covering the honeycomb cells, and (c) thereafter injecting a pressurized gas through the cells of the honeycomb core toward the heated portion of the adhesive film, causing the heated portion of the film covering each of the honeycomb cells to distend outwardly away from the surface of the honeycomb core and to rupture. The surface tension of the heated adhesive film causes the ruptured portions of the film to contract toward the surface network leaving a bead of adhesive covering the surface network and the portion of the honeycomb cell walls contiguous to the surface network. An apparatus for performing the foregoing method includes a roller assembly for supporting a honeycomb core for linear movement in a given direction along a horizontally oriented path, an infra-red heat lamp or other heat source mounted on the apparatus above the path of the panel, and an air knife assembly mounted on the apparatus below the path of the core for injecting an airstream upwardly through the cells of the panel.
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Massie Jerome W.
The Boeing Company
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