Blending & Dosing Basics Quiz
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of blending material ingredients in plastic processing?

  • To discard regrind produced from the process
  • To combine materials in predetermined proportions before mixing (correct)
  • To increase the cost of custom compounds
  • To sell the materials to other processors

    • Why did cost-conscious processors need to find a method for introducing regrind back into their process?

  • To make the process more complicated
  • To reduce the quality of their final product
  • To increase their production costs
  • To prevent wastage and save money (correct)

    • What was the main drawback of purchasing pre-compounded custom compounds for processors?

  • They were more expensive than individual raw ingredients (correct)
  • They were too easy to feed into the process
  • They were significantly cheaper than raw ingredients
  • They were difficult to obtain

    • What did processors realize about selling their regrind to others for re-processing?

    <p>It was a waste of money</p> Signup and view all the answers

    Why did processors need a method for introducing regrind into the material stream at a repeatable, measured rate?

    <p>To effectively reuse the regrind in their production</p> Signup and view all the answers

    What is the purpose of using blending and dosing devices in processing materials?

    <p>To reduce material costs and inventories, and improve product quality</p> Signup and view all the answers

    What is the function of a doser in a processing machine?

    <p>To introduce a measured amount of material into the machine throat</p> Signup and view all the answers

    How does dosing work in injection molding?

    <p>The doser is calibrated to the shot size of the molding machine</p> Signup and view all the answers

    Why might multiple dosing devices be connected to a single machine throat?

    <p>To introduce multiple additives or provide rapid changeover ease</p> Signup and view all the answers

    What is critical for assuring the proper operation of throat-mounted dosing units?

    <p>The mounting frame design</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser