Method and system for applying an isolation layer to a...

Details Method and system for applying an isolation layer to a... Method and system for applying an isolation layer to a...

2007-04-03

2007-04-03

Robinson, Daniel (Department: 3742)

Electric heating

Inductive heating

Metal working

C219S617000

Reexamination Certificate

active

10991416

ABSTRACT:
A method of forming a brazed joint between an armature bar and a hydraulic header clip including: assembling an end of the armature bar, hydraulic header clip and a substantially phosphorous-free braze material; positioning the assembly of the armature bar, hydraulic header clip and the braze material in a braze chamber, such that the clip is seated in an induction heating coil; heating the assembly to a first temperature within 200 degrees F. of and below a solidus temperature of the braze material by applying electrical current to the induction heat coil; heating the assembly to a second temperature above the liquidus temperature of the braze material; pooling liquid braze material on ends of the armature bar, and cooling the assembly and thereby forming a braze layer on the end of the armature bar.

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