Dukane iQ Series user manual Stack Assembly, Attaching a Replaceable Tip to a Horn

iQ Series, Ultrasonic Hand Held Systems User’s Manual

Stack Assembly

Attaching a Replaceable Tip to a Horn

1.Inspect all horn and tip surfaces for stress cracks, chips, or gouges. Any of these irregularities will affect operation and could lead to further equipment damage. Contact the Dukane Ultrasonics Tooling Department concerning damaged horn components.

2.Apply an extremely thin layer of a high temperature, high pressure silicon grease to the back surface that mates with the horn. The grease will allow both surfaces to intimately mate and become acoustically transparent which improves the energy transfer. Do not apply any grease to the threads. 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 facil- ity, a petroleum–based grease may be used. However, it is likely to leave carbonaceous deposits on the surface, and require more frequent joint maintenance. Failure to follow these instructions, may result in the mating surfaces bonding and difficulty removing the tip from the horn.

3.Thread the tip into the horn and tighten to the torque specifications below using an open end wrench of the correct size to fit the wrench flats of the tip. This is illustrated in Figure 6-4. If necessary, use a spanner wrench (on horns with spanner wrench holes) or an open end wrench (on horns with wrench flats) to keep the horn from turning in your hand. A canvas strap wrench is permissible if it does not gouge or scratch the horn.

Replaceable Tips to Horn

inch-lb	ft-lb	N-m	Size
360	30	40.7	1/2” x 20 tpi tip threads
336	28	38	3/8” x 24 tpi tip threads
300	25	33.9	5/16” x 24 tpi tip threads
240	20	27.1	1/4” x 28 tpi tip threads

Table 6-ITip Torque Unit Conversions

NOTE

Do not apply any grease to the threads of the replaceable tip. This may cause the tip to loosen from the horn resulting in inconsistent operation.

CAUTION

NEVER clamp the horn in a vise. The resulting scratches or gouges in the surface are stress risers which may result in cracks.

Tighten

Figure 6–4Replaceable Tip Installation

NOTE

Dukane Part No. for the 20kHz span- ner wrenches is 721–68.

Dukane Part No. for the 40kHz span- ner wrenches is 721–44.

Page  38 Dukane Manual Part No. 403-577-01