Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-07-17
1988-08-30
Cashion, Jr., Merrell C.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156247, 1562724, 1562748, 1562755, 1563077, 156323, 156344, 219 1043, 219 1053, B44C 114, B32B 3112, B32B 3120, B32B 3126
Patent
active
047674849
ABSTRACT:
A method is provided to bond strain gauges 6 to various materials. First, a tape 9 with an adhesive backing 10 is placed across the inside of fixture frame 8. Strain gauge 6 is flatly placed against adhesive backing 10 and coated with a thin, uniform layer of adhesive 5. Tape 9 is then removed from fixture frame 8 and placed, strain gauge side down, on the material to be tested. If the material is a high reluctance material 12, induction heating source 20 is placed upon tape 9. If the material is a low reluctance material 13, a plate 23 with a ferric side 21 and a rubber side 22 is placed, ferric side down, onto tape 9. Induction heating source 20 is then placed upon rubber side 22. If the material is an insulator material 14, a ferric plate 7 is placed on tape 9. Induction heating source 20 is then placed on ferric plate 7. Inductive heating source 20 then generates frequency from 60 to 70 kilocycles to inductively heat either low reluctance material 13, ferric side 21, or ferric plate 21 and provides incidental pressure of approximately five pounds per square inch to tape 9 for two minutes, thoroughly curing adhesive 5. Induction heating source 20, and, if necessary, plate 23 or ferric plate 7, are then removed from tape 9 after one minute. Tape 9 is then removed from bonded strain gauge 6.
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Buckley John D.
Fox Robert L.
Schott Timothy D.
Cashion Jr. Merrell C.
Glenn Charles E. B.
Helfrich George F.
Manning John R.
The United States of America as represented by the Administrator
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