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The
Rotary Index style machine is the most widely used
for most automatic soldering and brazing applications.
The typical sequence on a rotary machine begins with
manual or automatic loading of parts onto fixtures.
Indexing clockwise, the parts are pasted by one or
more automatic applicator guns. These guns, generally
mounted on slides, apply a premeasured deposit of
paste alloy to each joint.
After
pasting, the parts index again through a series of
natural gas/air burners. The burners progressively
heat the assembly to the liquidus temperature of the
filler metal. Following heating, the part indexes
through a series of cooling stations. Both air and
water are used to solidify the alloy and bring the
part and fixture back to room temperature. The finished
part is then automatically ejected or manually unloaded
by the operator. Production rates between 100-1200
parts per hour are typical.
Fusion offers two basic rotary index machine models:
Although
most of Fusion's automatic soldering and brazing machines
employ open flame heat, alternative heat sources can
be used, such as induction or resistance. Induction
creates a rapid, localized heat -- recommended for
heavy mass parts. Resistance heat is ideal for joints
that require intense, localized heat without annealing.
These heating methods are out-sourced and incorporated
into Fusion machine designs.
With
Fusion Machines, joint quality is virtually guaranteed,
due to the elimination of human error. Material costs
are controlled, since filler metal and flux are applied
automatically -- in just the right amount. Labor costs
become insignificant, as one operator turns out hundreds
of brazed or soldered assemblies per hour.
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