Veneer Splicer Problems 5: Poor Jointing, Excessive Glue Spread, Crimping
Troubleshooting checklist for dealing with glue-up problems in veneer splicing operations. January 4, 2007
Reprinted with permission from Diehl Machines, www.diehlmachines.com.
| Poor Jointing |
The sections of the veneer are spliced but sections open. Slight openings found along the glue line. | Inconsistent or insufficient glue spread. Sections of the veneer received too little glue or none. | Check the method of applying glue to the veneer. | Small slivers of the veneer were torn out along the edge. | Check the jointer. | | Excessive Glue Spread | A build up of glue on the surface of the veneer. | Too heavy of a glue spread on the veneer. | Check the method of applying glue. | Tear out of the veneer along the glue line. | Build up of crystallized glue on either the upper heater strip or lower heater bar. | Check the method of applying glue. | | Crimping | The leading edge of the glue line is pushed back along the glue line. | Build up of crystallized glue on either the upper heater strip or lower heater bar. | Check the method of applying glue. | Lower heater bar is high. | Readjust the lower and upper heater bars. |
See other articles in this series at:
Overlapping
Mismatching
Burning, Burnishing, Crimping
Marking of Stock, Grooving Along the Glue Line, Incomplete Glue Joint
Blue Staining
Reprinted with permission from Diehl Machines, www.diehlmachines.com.
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