ABSTRACT
In brazing technology, approximately 75% of all brazing applications are accomplished with flame heating. Approximately another 15% are satisfied by two other heating processes that, for convenience, can be described as electrical heating methods. These processes are
induction
and
resistance
. Both of these heating methods are characterized by their ability to provide
relatively rapid and closely localized heating of the joint area. When their use is restricted to those applications where these process features can be employed to maximum effect, excellent results will be obtained. Despite the inherent cleanliness of both procedures, it is very important to recognize that their fields of application are nowhere near as universally applicable to production brazing as those of the flame heating processes. The presence in a factory of a piece of relatively expensive equipment that fails to perform to specification is often the only outward sign of the truth of this comment. Pointed questions directed to the production engineers who now have to maintain the machine in operation will often establish that the engineer who purchased it departed from the company at rather short notice shortly after it was installed.
