HIGH-PRECISION MEASUREMENT AND ACTIVE CONTROL OF SOLIDIFICATION

高精度测量和主动控制凝固

• 批准号: 05239104
• 负责人: KUROSAKI Yasuo
• 金额: $ 53.5万
• 依托单位: TOKYO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05239104/
• 关键词: Solidification Process; Active Control; Polymeric Materials; Semiconductor Materials; Steel Casting; Fiber-Reinforced Composite Materials; Radiation Heat Transfer; Electric; Magnetic Fields; 複雑断面繊維; 単結晶成長; 連続鋳造スラブ; 炭酸ガスレーザ照射; 樹脂・金型界面熱抵抗; 非線形

This research project aims to establish the technology for processing and manufacturing of novel materials utilizing the precise measurement and active control of melting/solidification phenomena. The project involves 4 elemental research fields divided according to the material to be processed, and the results can be summarized as follows :(1) Concerning the processing of polymeric materials, a high-precision injection-molding process was proposed by utilizing a CO_2-Laser Irradiation, and its effectiveness was confirmed in molding of polymer products of sub-mum precision. In addition, a technique for measuring the thermal resistance at the boundary between mold surface and molded polymer was developed to obtain better understandings of the heat transfer between them. As a polymeric material with novel characteristics, high-speed spinning of fibers of non-circular cross-section was tested, and the mechanism of structure development in the cross-section of fibers was discussed based on … More the molecular orientation and heat transfer around the fibers.(2) Concerning the single crystal growth for semiconductor materials, melt flow interacted with the external electric/magnetic fields was examined from the micro-macro view points. The effect of electric conductivity of the crucible wall on the melt flow and heat transfer was studied under the external magnetic field. These results were adopted to obtain high-quality single crystals.(3) About the precise control of the solidification of steel slab in continuous casting direct rolling process, effective edge-heating method utilizing the convection-radiation conversion was examined. The results enable us to obtain the relation between the edge-heating effect and properties of the slab surface and the radiation convertor.(4) Concerning the fiber-reinforced composite materials, a method for measuring the thermal properties of the composite material was developed, and a correlation estimating the relation between the thermal properties and fiber/matrix materials was deduced. The correlation can be utilized for designing the thermal properties of the composite materials.In addition to those, thermal behavior of cooling media in trans-critical state was supposed to be utilized for heat transfer control in material processing, and fundamentals of the trans-critical phenomena were studied by a molecular-dynamics approach. Less

该研究项目旨在建立利用精确测量和积极控制熔融/固化现象的精确测量和积极控制的新型材料的技术。该项目涉及根据要处理的材料分配的4个基本研究领域，并且可以概括如下：（1）关于聚合物材料的处理，提出了高精度的注射式焊接过程，该过程是利用Co_2-laser辐射，并在submum Precision的Polymer Precision Precymer Precision of Propymer Preciession的模层中证实了其有效性。另外，开发了一种用于测量模具表面和模制聚合物之间边界处的热电阻的技术，以更好地理解它们之间的传热。作为具有新颖特征的聚合材料，测试了非圆形横截面的纤维的高速旋转，并基于……更多的基于……更多的是纤维周围的分子取向和热传递的纤维横截面的机制。（2）与分子材料相关的单个晶体生长，从而从材料进行了元素互动，旋转了型号，旋转型号，是元素互动的。在外部磁场下研究了坩埚壁对熔体流量和传热的影响。采用这些结果以获得高质量的单晶。（3）关于在连续铸造直接滚动过程中对钢板固化的精确控制，使用了连接辐射转换的有效边缘加热方法。结果使我们能够获得平板表面的边缘加热效果与辐射转换器之间的关系。（4）关于纤维增强的复合材料的关系，一种用于测量复合材料的热性能的方法，以及估计热性能与光纤/纤维/matrix材料之间关系的相关性。可以将相关性用于设计复合材料的热性能。在此外，预计在跨临界态下冷却培养基的热行为可用于材料加工中的传热控制，并且通过分子 - 动力学方法研究了反临界现象的基本原理。较少的

项目成果

一宮、吉田: "加振伝熱面上の衝突噴流熱伝達の特性" 第32回日本伝熱シンポジウム講演論文集. 2. 389-390 (1995)

Ichinomiya, Yoshida：“激发传热表面上的冲击射流传热的特性”第 32 届日本传热研讨会论文集。2. 389-390 (1995)。

一宮浩市、松本 弘: "比較的狭い隙間における層流環状衝突噴流の伝熱流動特性" 日本冷凍協会論文集. 11. 289-298 (1994)

Hiroshi Ichinomiya、Hiroshi Matsumoto：“相对狭窄间隙中层流环形冲击射流的传热流动特性”日本制冷协会汇刊 11. 289-298 (1994)。

一宮浩一 他1名: "環状ノズルによる乱流衝突噴流熱伝達の特性" 第30回日本伝熱シンポジウム講演論文集. 3. 775-777 (1993)

Koichi Ichinomiya 等人：“通过环形喷嘴的湍流冲击射流传热的特性”第 30 届日本传热研讨会论文集 3. 775-777 (1993)。

Kurosaki, Satoh, Saito: "Injection-Molding Process for High-Precision Polymer Products Utilizing CO_2 Laser Irradiation" Proc.Int.Symp.on Molecular and Microscale Heat Transfer in Materials Processing and Other Applications. 351-362 (1997)

Kurosaki、Satoh、Saito：“利用 CO_2 激光辐照的高精度聚合物产品的注塑工艺”Proc.Int.Symp.on 材料加工和其他应用中的分子和微尺度传热。

Kurosaki,Satoh,Saito: "Reduction of Birefringence in a Skin-Layer of Injection Molded Polymer Strip using CO2 Laser Irradiation" Proceedings of the 30th 1995 National Heat Transfer Conference. HTD-Vol. 306. 201-208 (1995)

Kurosaki、Satoh、Saito：“使用 CO2 激光照射减少注射成型聚合物条带表层中的双折射”1995 年第 30 届全国传热会议论文集。