Edge Gluing Engineering and Production Systems

The new system of electronic heating has proved especially adaptable to edge-gluing of lumber panels, where “selective heating” can be used, because it is in the edge-gluing operation that the curing cycles are the shortest and the waste of electrostatic energy the least. The paper discusses the four essential elements of high frequency edge gluing: a thermosetting synthetic resin adhesive, usually urea-formaldehyde; a source of electrical energy; a mechanical press for holding panels under pressure during the curing cycle; and a production system designed to service the gluing equipment. High-frequency provides an opportunity for stepping up production rates with reduced manpower all along the line. The manufacturer using high frequency will do well to analyze carefully the operations which support the gluey. It is easily possible that any apparent deficiencies in the gluer may actually lie instead in the production system behind the machine.

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