Can I read Effect of Gas Counter Pressure on Shrinkage and Residual Stress for Injection Molding Process on EtoBox?

Effect of Gas Counter Pressure on Shrinkage and Residual Stress for Injection Molding Process by Wen-Ren Jong; Shyh-Shin Hwang; Ming-Chieh Tsai; Chien-Chou Wu; Chi-Hung Kao; Yan-Mao Huang is a Materials Science article available to read on EtoBox.

What is Effect of Gas Counter Pressure on Shrinkage and Residual Stress for Injection Molding Process about?

Abstract Plastic products are common in contemporary daily lives. In the plastics industry, the injection molding process is advantageous for features such as mass production and stable quality. The problem, however, is that the melt will be affected by the residual stress and shrinkage generated in the process of filling and cooling; hence, defects such as warping, deformation, and sink marks will occur. In order to reduce product deformation and shrinkage during the process of molding, the screw of the injection molding machine will start the packing stage when filling is completed, which continuously pushes the melt into the cavity, thus making up for product shrinkage and improving their appearance, quality, and strength. If the packing pressure is too high, however, the internal residual stress will increase accordingly. This study set out to apply gas counter pressure (GCP) in the injection molding process. By importing gas through the ends of the cavity, the melt was exposed to a melt front pressure, which, together with the packing pressure from the screw, is supposed to reduce product shrinkage. The aim was to investigate the impacts of GCP on the process parameters via th

Who reads Effect of Gas Counter Pressure on Shrinkage and Residual Stress for Injection Molding Process?

Author

Wen-Ren Jong; Shyh-Shin Hwang; Ming-Chieh Tsai; Chien-Chou Wu; Chi-Hung Kao; Yan-Mao Huang

Publisher

Walter de Gruyter GmbH

Published

2016

Language

EN

Field

Materials Science (Physical Sciences)