Radio Frequency Heating as Applied to Furniture Manufacture

Radio frequency generators have proven to be a useful Production tool for gluing operations in the furniture industry. This study determined maximum gluing rates with typical basic glue joints. Two electrode shapes were used, and test specimens were 3/4- by 5-inch pieces of oak and maple. A typical reinforced urea resin glue was used. Production values ranged from 60 to 130 square inches of glue line per kw-minute. Findings were that the electrode should be placed in direct contact with the glue line or as close as possible for the best results. The report also includes minimum heat cycle and voltage requirements to obtain the best glue cure for each type of glue joint. Radio frequency gluing increased the frames per man hour from 26 to 60, and at the same time reduced plant costs.

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