Hi-tech molding and tool

The screw is used to feed material to the front of the screw past the check ring. There are different screws for different resins, but most often a general purpose screw works. While the screw is plasticizing or picking up the next shot, it is turning and slowly moving backward.

Back pressure is applied to the screw so that the material in front of the screw does not have air pockets. Material flows over the check ring and in front of the screw tip.

When the screw starts to move forward to begin the Fill Stage, The locking ring prevents the material from flowing back and keeps it going into the mold. The nozzle tip and nozzle heater band are what sticks out of the end of the barrel. Keeping this area hot is crucial to not having flow problems or cosmetic issues. An Airshot is always done when starting up and shutting down a machine.

This is just shooting material out of the end of the barrel into the injection unit well behind the stationary platen. Airshots are always done at low pressure to not cause injury. The next video will cover the platens, which are the portion of the Injection Molding machine that keep the mold closed while material is being shot into it. May 31, Hi-Tech News. Stay In Touch. Sign Up For Our Newsletter. Hi-Tech produces molds in-house and can source molds from Overseas.

The tool room allows us to maintain consistent part delivery performance. Hi-Tech produces components and assemblies in a wide range of Engineered Thermoplastics, verifies lot traceability and can aid in material selection during design or supply issues. I have been working with Hi-Tech for 5 years now. Over that span, Hi-Tech has always been very easy to work with and they present themselves in a professional manner.

Hi-Tech has delivered quality injection mold tooling and parts with competitive pricing. Their Program Management and Engineering group kept up with several design changes throughout the tool build and still delivered on-time. Hi-Tech has an excellent customer service and high quality products. Hi-Tech supports us with our Kanban program to have product on time.

Support team is always available for us to answer all our questions. Better Products for Less. A complete-process for injection molding giving you a manufacturing edge. We now have a Downloadable Guide section to help you reduce costs, improve performance, and deliver a quality product on time.

Downloadable Guides. About Us. Learn More. Hi-Tech Talk. August 5, Hi-Tech News.