918864

SME CM97-103

Rotating Ratchet Ring Unscrewing Mold Technology

standard by Society of Manufacturing Engineers , 06/01/1997

Derek R. Mccready

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Full Description

Methods of molding plastic closures with internal threads range from the stripped and collapsible core methods to unscrewing options such as the rotary core mold. This paper reviews the limitations of each before presenting the benefits of an alternative method of unscrewing parts from stationary cores--the patented 'Rotating Ratchet Ring' approach.
 

Product Details

Published:
06/01/1997
Number of Pages:
5
File Size:
1 file , 73 KB