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[[Media:Manual_InjectionMolder.pdf|Injection Molding Machine User Manual]]
==Training==
==Training==
====Overview====
====Operation====
The injection molder works by melting plastic pellets within a heated barrel to a specific temperature, and using a ram plunger to force the molten plastic through a nozzle, into a mold cavity.
The injection molder works by melting plastic pellets within a heated barrel to a specific temperature, and using a ram plunger to force the molten plastic through a nozzle, into a mold cavity.
====General Procedure====
====General Procedure====
# Setup
# Setup
## First we have to Preheat the mold. If a hot plate is available, preheat the aluminum mold to prevent plastic cooling too fast by placing the mold on the hot plate and heating to a specific temperature. Temperatures for different plastics can be found in the table below.[[File:...injectionTemperatureChart.png|none|thumb|373x373px]]
## You will need to setup the molding machine using the following steps and charts. Temperatures for different plastics can be found in the table below. Make sure to wear gloves and safety glasses while using this machine.[[File:...injectionTemperatureChart.png|none|thumb|373x373px]] [[File:Temp_Controller.JPG|600px|thumb|none]]
## Next we need to adjust the height by following these steps.
## First we need to adjust the height for the mold being used by following these steps.
### Set the mold clamps to measure the gap.
### Set the mold clamps to measure the gap.
### Loosen the height adjustment bolts on the top holder using a 6mm Allen Wrench.
### Loosen the height adjustment bolts on the top holder using a 6mm Allen Wrench.
### Tighten the upper and lower tension nuts.
### Tighten the upper and lower tension nuts.
# Molding
# Molding
## Now we can starting molding materials!
## Turn on the power switch.
## First we need to set the temperature for the mold.
## Make sure the SV value is correct on the temp controller for the type of material you are using. Adjust the temp controller using the setting buttons if the SV value needs adjusting.
## Wait for the PV value to reach the SV value.
## Now add pellets to the feeder.
## Wait several minutes for the pellets to melt. If you want to preheat the mold now is the time.
## You should see a small amount of plastic ooze from the nozzle
## Make sure the mold is clamped tight and the nozzle nipple is aligned with the mold sprue.
## Scrape away any oozing plastic from the nozzle using a screwdriver or similar tool. This helps keep plastic chunks out of the mold.
## With a smooth linear motion push down on the handle and fill the mold.
## Hold pressure on the handle for an extra few seconds. This will help reduce shrinking of the plastic in the mold.
## Retract the handle all of the way to remove the plunger and give access to load more pellets.
## You can now remove the mold and separate the halves.
==Safety==
==Safety==
==Certification==
==Certification==
[https://foxtale.georgefox.edu/moodle/course/view.php?id=31709 Foxtale Course]
[https://georgefox.instructure.com/courses/1280 Canvas Quiz]
==Troubleshooting==
==Troubleshooting==