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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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Sensors and Materials
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 31, Number 10(2) (2019)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 3099-3110
S&M1996 Research Paper of Special Issue https://doi.org/10.18494/SAM.2019.2357 Published: October 25, 2019 Development of Mold for Demolding Resistance Measurement in Polymer Injection Molding [PDF] Yasuhiko Murata, Takahiro Nakanishi, Naoki Hirai, Fumiya Kawanishi, and Hidehiko Ibuki (Received March 4, 201; Accepted May 7, 2019) Keywords: polymer lens, injection molding, demolding resistance, quartz force sensor
In the injection molding of polymer lenses, the demolding resistance may cause problems, such as deformation, cracks, and scratches, in these products. To examine the method of decreasing the demolding resistance of polymer lenses, a method of precisely measuring the demolding resistance should be established. In this study, we designed and fabricated a mold equipped with high-sensitivity quartz force sensors for demolding resistance measurement that is customized for the injection molding of polymer lenses. In addition, we evaluated the performance of the mold. Using this mold, we measured the demolding resistance of fluorine-based polyester lenses. As a result, it was clarified that (1) the preload applied to the quartz force sensors before the start of mold closing has a significant effect on the generation of demolding resistance, (2) the draft angle of a cavity wall has an effect on the demolding resistance, and (3) the maximum demolding resistance increases with increasing holding pressure, injection rate, heating cylinder temperature, and mold temperature.
Corresponding author: Yasuhiko Murata  This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yasuhiko Murata, Takahiro Nakanishi, Naoki Hirai, Fumiya Kawanishi, and Hidehiko Ibuki, Development of Mold for Demolding Resistance Measurement in Polymer Injection Molding, Sens. Mater., Vol. 31, No. 10, 2019, p. 3099-3110. |
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