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Posts Tagged ‘operation’

This video is an exerpt from our Extruder Operation and Control – Single Screw: Lesson 1 course. This program uses state-of-the art animation technology to teach the fundamentals of single screw technology, including parts and operation, plastics used for extrusion, extruder controls, safety procedures, troubleshooting and more. Also available in Spanish. Paulson Training Programs – Complete Training Solutions for the Plastics Industry. Visit www.paulsontraining.com for state-of-art plastics training, including interactive CD-ROM and online training.

Video shows the process construction of the RTM Light mold the manufacture of the piece.

plastic injection machine

Demolding my an address sign for the house, which I cast from aluminum using a simple investment casting technique. See my other video for the pour. The pattern is foam, which is vaporized by molten aluminum, which then fills the cavity. I design plastic housings for a living and so constantly think about the part as it exists in a mold. A lot of effort goes into designing parts that are manufacturable and then chosing gating and mold constructoins that work. Some of that experience has been proving useful in my DIY casting efforts, even though plastic injection tooling is a totally different world. If there’s interest, I’ll keep posting videos of my metal casting experiments.
Video Rating: 5 / 5

Question by Brijesh: Plastic Injection Molding Operation, Need 2 purge the barrel from Blue 2 White. (polyolefin base)?
Traces of blue color is not cleaned completely.

Best answer:

Answer by markmold
There are several commercially available purging compounds that work quite well. I’m assuming you want the quick fix though. When I don’t have any of the commercial stuff available I usually reach for some acrylic regrind that I have lots of on hand and was given by another molder. If you have any blowing agent this also works well.
Here’s an old molders trick try sprinkling a little Baking Soda into the mix and crank up the temps a bit, a few drops of water won’t hurt either. It might foam up a bit but it’ll scrub the residuals out.

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Nice handling application in an plastic injection machine. More than 500 used robots available at www.eurobots.net
Video Rating: 0 / 5

Mountain Moid & Die, Inc. 127 River Bend Drive Sevierville, TN 37876 www.mtnmold.com 865-428-3611