Seikei-Kakou
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
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Volume 35, Issue 4
Displaying 1-10 of 10 articles from this issue
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Index
Foreword
Technical Notes : Special Issue on Cellulose Nanofibers for Carbon Neutrality
Technical Reports
Report of Meetings and Trade Fair
Original Paper
  • The Effect of the Plasticization Process in Injection Molding on the Molten Resin State
    So Shimokusuzono, Akira Inoue, Tatsuya Tanaka, Masahiro Sasada, Ryohei ...
    2023 Volume 35 Issue 4 Pages 135-140
    Published: March 20, 2023
    Released on J-STAGE: April 20, 2023
    DOIhttps://doi.org/10.4325/seikeikakou.35.135
    JOURNAL FREE ACCESS
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    In injection molding, the melt state of the resin after the plasticization process has a significant influence on the quality of the molded product. However, the plasticization process did not allow visualization of the conditions inside the heat barrel, making it difficult to accurately grasp the melt state of the resin. The purpose of this paper is to establish a method to evaluate the resin melt state during the plasticization process. For evaluation, the resin pressure in the nozzle and the data obtained during the plasticization process in injection molding were analyzed. The data were then compared with the values obtained from the flow analysis. As a result, the screw moving speed in the ideal resin melt state could be calculated from the pressure loss at the check ring, and the evaluation method was established.

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