is part of the Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Many questions on residence time and shot volume during recent Injection Molding Expert webinar

If the shot capacity of a machine does not take into account the material in the flights, then how does one calculate accurate residence time? Is shot volume less than 20% of barrel size absolutely to be avoided? Is it best for part performance to select a low MFR material? Mike Sepe, the Materials Analyst of Injection Molding Magazine fame and host of our six-part Injection Molding Expert webinar series, fielded these and many other questions from molders during the live Q&A following last Wednesday's webcast on "The role of the molding machine in the manufacturing process."

This series of 60-minute webinars is designed to help you move from pellet to part, covering design, materials handling, process optimization, and more, to help you become even better at your trade. Typically Mike's presentation lasts about 40 minutes, leaving 20 minutes for processors to ask their questions via live chat tool. During webcasts, a processor sees a presentation's slides on his computer screen and hears the presentation, and then the answers to questions, using his computer's speakers.

Other questions asked and answered in the webcast on Sept. 14 included, "Could you speak to the effects of very small shot size on the ability of the machine to get up to speed and slow down in such short distances, versus giving the machine more linear movement to do this? What is the suggested method to measure melt temperature? Is there a rule of thumb regarding the increase in MFR, part versus resin, indicating degradation in mechanical properties? What is velocity-controlled pack? Can you profile barrel heaters to adjust for residence time?"

You can download the slides or, even better, download them and also listen and watch Mike's presentation, via this link to our archived webinars.

Hide comments
account-default-image

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish