Electric heating – Metal heating – For bonding with pressure
Patent
1988-12-21
1991-01-22
Leung, Philip H.
Electric heating
Metal heating
For bonding with pressure
219 1043, 219 95, 219 1075, 29857, 2281801, H05B 610, B23K 100
Patent
active
049872834
ABSTRACT:
A strap comprised of a layer of magnetic material on a layer of nonmagnetic conductive metal comprises a self-regulating heater, which is wrapped around a length of heat recoverable tubing disposed around a terminal being terminated to a conductor wire, or a pair of wires being spliced. When energized, the strap generates thermal energy melting solder of a preform within the tubing, terminating the terminal to the wire, or the two wires together, and sealing the termination simultaneously. A plurality of terminals in a connector housing include solder tails extending rearwardly from the housing so that respective wire ends may be placed therealong within solder preforms within heat recoverable tubing therearound. A strap comprising a self-regulating temperature source is wrapped around the array of solder tails and wire ends and is energized to solder the array and seal the terminations. A high frequency alternating current induced in or transmitted to the magnetic layer of the strap causes the strap to generate thermal energy sufficient to melt the solder and shrink the tubing. The strap may have several layers and may be shapable to conform to the outer surfaces of the heat recoverable tubing lengths. A strap may seal an open end of a length of heat recoverable tubing having a sealant preform therewithin, when wrapped therearound and energized.
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European Search Report No. RS 84683 US dated Oct, 1989.
Beinhaur Ernest L.
Henschen Homer E.
McKee Michael J.
Pawlikowski Joseph M.
AMP Incorporated
Leung Philip H.
Ness Anton P.
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