How many years are in a millennium?

20.  If you vented 30% of the perimeter of the plastic injection mold and are still have burns on your plastic part, you could vent the ejector pins for additional vents (good thing about venting ejector pin, they are self cleaning).    

32.  ________________________   ________________  this type of gate is used for molded parts that do not allow a gate mark on the visible surface because they are to be imprinted or chrome plated.

6.    Mold protection that we discussed in class for a plastic injection mold, which is a type of protection used in the industry.

49.  Molds should be stored wet and not protected against fire.

47.  In  Chapter 9, only a few simple steps are needed daily to ensure the long term production safety of the molds or dies.

28.  Hot runner is an extension of the injection unit.  They keep the plastic at a liquid (molten) state up into the mold cavity.

38.  During chapter 4, we discussed Mold Quick change systems, this reduces lead time on “part to part”, the time it takes to set and pull the mold or die.

46.  In Chapter 9, regular care (PM) of molds pays off in the long run.

30.  Hot runner manifold system, which has valve or pinpoint gates – operate through hydraulic, pneumatic, or electric actuation.