Electric heating – Heating devices – Tool or instrument
Patent
1980-05-09
1983-10-25
Bartis, A.
Electric heating
Heating devices
Tool or instrument
1565832, 174126CP, 219 85D, 219 85F, 219228, 219235, 219243, 228 51, 228 54, B23K 302, H05B 300
Patent
active
044121237
ABSTRACT:
An electrically heated soldering device adapted to simultaneously heat a plurality of spaced electrical elements in a reflow soldering operation includes an elongated metal laminate of substantially U-shaped cross section having a bight portion between two side portions which may be parallel or divergent. The laminate includes a layer of aluminum between a layer of copper and a layer of stainless steel, with the layers being roll bonded together. The copper and aluminum layers are removed at the bight portion to expose the stainless steel layer and form a heat generating zone for contacting the plurality spaced electrical elements which is corrosion resistant and nonwettable by solder. The edges of the copper and aluminum layers adjacent to the exposed stainless steel bight portion are shaped to impart a selectable temperature profile, either uniform or non-uniform along the length of the bight portion. The exposed surface of the stainless steel portion can be provided with a ceramic coating to electrically insulate bight portion from the elements to be soldered. The legs of the U-shaped laminate are adapted to be connected to an electric power source through the copper and aluminum layers thereof.
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Ammann Hans H.
Bonanni Rocco
Engelmaier Werner
Bartis A.
Bell Telephone Laboratories Incorporated
Cubert Jack S.
Olsen Kurt C.
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