TA Instruments TMA 2940, Руководство оператора

Страница: 128 / 176

Using Your Options
TA I
NSTRUMENTS
TMA 2940 4–38
Preparing
Resinous Materials
To prepare resinous materials for use with the
parallel plate rheometer accessory, you will need
the following parts to use as a molding form:
• Pellet press cylinder
• Cylinder head
• Piston.
1. Assemble the pellet press cylinder and
cylinder head in the sample-forming posi-
tion for use as a mold as shown (see Figure
4.15).
Figure 4.15
Sample-Forming
Position
2. Heat up a hot plate to about 20
o
C above the
melting point of the sample material.
This procedure involves heating up the sample
and mold assembly. Handle with tongs to
prevent burns.
3. Place the mold assembly on the hot plate
and allow it to come to temperature.
!
W ARNING