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Technique
for The Solder Retention Cap
Page 2
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19 |
20 |
21
H16 Soldering Tool |
| The cast metal frame accurately fits the abutment crown (FIG
19).
Connect the solder cap retention piece to the cast metal frame with pattern resin
(FIG 20). The (RE)H16 soldering accessory (FIG
21). |
| Remove the frame from the model. Remove the male spring
pin and spacer. Liquid Graphite, or anti flux, should be applied to the threads of the H16
soldering accessory. Thread the H16 in to the solder caps (FIG
22). Invest in
soldering investment. Be sure to keep the areas to be soldered free of investment
(FIG 23). The frame must be properly heated during soldering to allow proper flow of the
solder (FIG 24). |
| Ceka SOL is recommended, as it contains its own flux, flows
well, and solders dissimilar metals well (FIG
25). If the flame is properly used, the
solder will flow completely surrounding the retention pieces. Do not use any
additional flux (sufficient quantity in Ceka SOL) (FIG
26). Frame and solder joints are
cleaned by sandblasting with aluminum oxide (FIG
27). |
| Clean the cast frame in an ultrasonic cleaner. Slightly
heat the soldering accessory for easier removal (FIG
28). If the surface oxide is
removed chemically or by electronic stripping, be sure to protect the attachment with wax.
Use brushes for a final high shine (FIG
29). The solder must flow completely
surrounding the retention piece (FIG
30). |
| Place a drop of Ceka Bond on the threads of the male spring
pin and thread fully into the solder retention piece (FIG
31). This will prevent gradual
unthreading of the spring pin (FIG
32). The finished prosthesis (FIG
33). |
T0005.REV.00
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