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▲
I
NSTRUCTION
M
ANUAL
TERAPRESS TP 7500S
Mounting Press
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
3601 E. 34th St. Tucson, AZ 85713 USA Tel. +1
-
520
-
882
-
6598 Fax +1
-
520
-
882
-
6599 email: [email protected] Web: https://www.metallographic.com
TIP:
Glass
-
filled epoxies and diallyl phthalates are significantly more expensive than
phenolic and acrylics. In order to reduce the cost of these mounts, they can be
laminated with a lower cost mounting compound such as a phenolic. The technique is
to place a sufficiently thick enough layer of the glass
-
filled epoxy or diallyl phthalate
around the specimen in order to compensate for any grinding loss. The rest of the
mount can then be supported with a lower cost compression mounting compound such
as a phenolic. Red phenolics are used frequently for this technique (Figure 7
-
13).
Figure 7
-
13
Glass
-
filled epoxy laminated with phenolic to reduce the cost of the mount.
7.1.4 Specialized Compression Mounting
Resins
With the addition of fillers such as graphite
or copper, the compression mounting
compounds can be made conductive (Figure
7
-
14). Conductive mounts are used in
Scanning Electron Microscopes (SEM) to
prevent the specimen from building up a
charge. Conductive mounts are also used
for specimens requiring electrolytic etching
or polishing.
Figure 7
-
14
Graphite and copper are common
fillers used to increase the conductivity of
compression mounting resins.
32