Extrusion Introduction An extruder is a common machine in industry ...
Extrusion Introduction An extruder is a common machine in industry ...
Extrusion Introduction An extruder is a common machine in industry ...
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0.7<br />
Ri(z)/Ro(z)<br />
(<strong>in</strong>creas<strong>in</strong>g pi)<br />
pi = 60 Pa<br />
0.6<br />
pi = 0 Pa<br />
0.5<br />
0.0 0.2 0.4 0.6 0.8 1.0<br />
Figure 9. Variation of <strong>in</strong>ner to outer radius ratio for various <strong>in</strong>ternal pressure<br />
Operat<strong>in</strong>g Procedures<br />
General Operations<br />
Start Up<br />
Die<br />
Off On<br />
Zone 3 Zone 2 Zone 1<br />
On Off Auto<br />
On Off Auto<br />
On Off Auto<br />
S D S 3 S 2 S 1<br />
Thermal meter<br />
for each zone<br />
T D T 3 T 2 T 1<br />
Ammeter for<br />
each zone<br />
Screw rotat<strong>in</strong>g speed<br />
15 rpm<br />
Stop<br />
Start<br />
Present temp. of die<br />
325 ℉<br />
Motor<br />
Motor speed<br />
controller<br />
Figure 10. The control panel of the extrusion system.