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109
Dukane Manual Part No. 403–566–01
Section 10 – Probes and Probe Stracks
Attaching The Horn To A
Booster, Booster To A
Probe, Or Horn To A Probe
1. Inspect all surfaces to be joined for stress
cracks, chips, or gouges. Any of these irregu-
larities will affect operation and could lead to
further equipment damage. Contact the Du-
kane Ultrasonic Tooling Department concern-
ing a damaged booster.
2. Ensure that the mating surfaces of the two
components are clean and smooth. These sur-
faces must make intimate contact for the me-
chanical energy to pass from one component
to the next. Pitting or a buildup of old grease
and dirt on a mating surface will interfere with
the energy transfer and reduce the power de-
livered.
3. Make sure that the stud in the horn or booster
is tight. See the preceding mounting stud as-
sembly instructions for torque specifications.
4. Remove any foreign matter from the threaded
stud and mating hole.
5. Apply an extremely thin layer of a high tem-
perature, high pressure silicon grease to the
surface that mates with the horn. The grease
will allow both surfaces to intimately mate and
become acoustically transparent which im-
proves the energy transfer. We recommend
Dow–Corning #4 (or #111 as an alternate). A
small packet of Dow–Corning #4 is supplied
with the system. If you cannot use a silicon–
based grease in your facility, a petroleum–
based grease may be used. However, it is likely
to leave carbonaceous deposits on the surface,
and require more frequent joint maintenance.
Grease may be omitted if mylar washers are
preferred on systems that require frequent
changes. Mylar is plastic and will creep under
compression, so mylar is not recommended for
system that are not changed frequently. Fail-
ure to follow these instructions, may result in
the mating surfaces bonding and difficulty re-
Figure 10–4 Stack Assembly Procedure
Tighten
CAUTION
Never leave a horn or
booster assembly hand
tight. Torque it to the
proper specifications be-
fore proceeding. If the
assembly is installed with-
out being properly
torqued down, the assem-
bly may vibrate severely,
damaging the mating sur-
faces and causing the
generator to overload.
ƽ
NOTE
Always remove a probe stack from the ma-
chine in which it is mounted before attaching
or removing a horn.