Efficient multicavity processing of small medical parts


There’s a big incentive for molders of small medical parts to increase production efficiency by going to 16, 32, or even more cavities using hot runner/valve gate systems. Molders have always had great success with Eastman Tritan copolyester for medium-to-large components of medical devices and electronic instruments. Recently, our commitment to small, multicavity solutions began delivering big results. 

Proper cooling saves time, improves quality

With any polymer, poor and uneven cooling can result in:
• 周期时间延长
• 高残余应力
• 翘曲性更大
• 粘模和难以脱模

Considering the unique properties of Eastman Tritan copolyester, a few important guidelines will improve efficiency and part performance. 

Designing for Manufacturability Webinar Tomorrow!

The Tritan experts at Eastman are hosting a live webinar on December 10, 2015, from 11:00 to 12:00 EST. This webinar will cover these important considerations to help you design for manufacturability:

Tooling design – keys to success

Proper Gating Selection
 
•Select a compatible gating style for the selected resin. Most conventional cold gating styles work well with copolyesters. For hot runner systems, valve gates should be used.
 
Design Tooling with good Cooling/Thermal Control
 
  •Copolyesters require good thermal control throughout the cavity for optimal processing.
 
Design Tooling with a plan for venting
 
  •Poor venting can result in burn marks and incomplete fill.
 
Design Tooling with a plan for ejection
 
  •Parts should be adequately supported during ejection to avoid part deformation/breakage
 
Click here for more successful processing tips

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