权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

射出成形品の力学的特性向上を目的とした配向制御手法と部品の軽量化設計手法の構築

开发零件的定向控制方法和轻量化设计方法，以提高注塑产品的机械性能

基本信息

批准号：
20K04201
负责人：
瀬戸雅宏
金额：
$ 2.08万
依托单位：
Kanazawa Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2020
资助国家：
日本
起止时间：
2020-04-01 至 2024-03-31
项目状态：
已结题

项目摘要

本研究課題における主な取り組みは，①繊維配向因子の定量的解明，②繊維配向メカニズムの解明，③力学的特性発現に向けた繊維配向制御手法の確立である．初年度では，繊維配向に直接影響を与える因子を定量的に明らかにするために，繊維強化射出成形中の金型内流動現象の可視化観察を実施した．その結果，繊維配向は，固化層の成長挙動と成形中の樹脂流速分布が大きく影響していることを明らかにした．さらに令和3年度では，成形品の幾何学的形状，特にゲート形状が繊維配向に与える影響を検討した．その結果，ゲート形状は，特に成形品板厚中央層の繊維配向に影響を与えることが示唆された．その一方で，繊維含有率や繊維長によって射出成形品の繊維配向が変化することが示唆されたことから，可視化実験により得られた樹脂流速分布から算出したせん断ひずみエネルギーと実際に成形品の繊維配向度分布を比較した．その結果，せん断ひずみエネルギーが繊維配向の与える影響は，繊維含有率によって異なることがわかってきた．これは，繊維同士の配向に与える相互作用が影響していることが示唆され，新たにこの影響を検討する必要性が生じた．そこで，令和4年度においては，繊維の相互作用が直接観察できる可視化金型の試作（簡易金型）に注力し，繊維1本1本の成形中の配向挙動が観察できるか検討した．具体的には，これまで金型キャビティ内に光を照射しその反射像で樹脂並びに繊維配向の可視化観察を行っていたが，キャビティ内に光を透過させ，その透過画像の観察を試みた．その結果，繊維1本1本の挙動が鮮明に観察でき，従来使われている繊維配向予測モデルと十分比較することができた．また，これまで観察が難しかった，固液界面での繊維配向挙動の観察もできることが確認された．しかしながら，繊維の相互作用の影響までは観察することができず，今後改良する必要があることが示された．

In this study, the main objective of this study is to obtain a quantitative explanation of the alignment factor, a quantitative explanation of the alignment factor, a quantitative explanation of the alignment factor, and a solution of the mechanical properties of the alignment control technique. In the first year of the year, it is necessary to determine the relationship between the direct effect of the alignment factor and the quantitative analysis of the alignment factor. The flow patterns of metal in injection forming can be observed and tested. The results show that the flow velocity distribution of solidified resin in the dynamic forming of solidified metal is greatly affected by the flow rate distribution of solidified grease in the dynamic forming of solidified metal. The results show that the shape of the forming product is different from that in the third year, and that the shape of the formed product is different from that of the computer. With regard to the shape of the forming product, the thickness of the special forming product is matched in the center of the thickness of the forming product in the center of the sheet thickness. on the other hand, the content of the product is higher than that of the molded product. In this paper, we can obtain the velocity distribution of fat and calculate the distribution of orientation. the results show that the distribution of the degree of orientation of the product is better than that of the product in the world. In the same way, the interaction between the equipment and the device shows that it is necessary to make sure that it is necessary to make sure that it is necessary to do so, and that in the year 4, the interaction is used to directly monitor the force of the flexible metal system (easy metal type), and the equipment in the shaping of the machine is used to monitor the performance of the machine. In order to improve the performance of the system, the reflection image of the reflecting image is illuminated by a gold-based optical device, and the reflection image is detected by the light emitting device, which is used to detect the color of the reflector. in the results, a copy of this book is used to monitor the image, so that the performance of the system is very much better than that of the system. The solid-liquid interface is used to make sure that the temperature is high. The interaction between the two is effective. In the future, it is necessary to improve the performance.