Dynisco Online Viscosity Measurement


From the Dynisco presentation "From lab to production, providing a window into the process."

Get maximize extrusion efficiency with Dynisco Online Rheological Testing.

Dynisco online rheometers provide a "window into your process" with the ability to continuously measure critical parameters form melt flow ratio to intrinsic / relative / melt viscosity and from constant shear rate to shear sweep.

The video above introduces the Dynisco ViscoSensor, CMR IV, and FCR and presents the viewer a cost justification for their use. You can also download the presentation from the AP Corp. website here.

For more information in New England and Upstate New York, contact AP Corp. by calling (508) 351-6200 or by visiting https://a-pcorp.com.

What are Plastics Industry Feed Screws and How Are They Made?


Feed screw maintenance
Feed screw maintenance.
Plastics industry feed screws, or feed screw augers, are mechanisms that use rotating helical screw blades to move plastics pellets through the barrel of molding and extrusion equipment. The feed screw transports the plastic as it changes phase from solid to viscous liquid through friction, shear, and conductive heat transfer. 

A typical feed screw has three zones. Plastic pellets enters the screw feed section where the pellets are compacted and conveyed. Next is the transition (or compression) section, where the plastic is compressed, conveyed, and melted.  Finally, the liquid plastic moves to the metering section where it is precisely controlled at optimum temperature and viscosity.

For more information about feed screws, or any part of the injection molding process, contact:
508-351-6200

Injection molding
Diagram of injection molding process.