電磁控制對EPOXY基材不鏽鋼纖維配向之研究

STUDY ON THE STAINLESS STEEL FIBER ORIENTATION OF EPOXY SUBSTRATE FOR ELECTROMAGNETIC CONTROL

李平惠(P. H. Lee) ； 林明俊(M. J. Lin)

《南亞學報》 37期 (2017/12) Pp. 56-73

摘要

本研究應用EPOXY材料，添加導電性材料（金屬纖維）形成導電性複合材料，利用模具外部增設電磁場裝置以電磁輔助射出成型方式達成導電添加物之分佈與配向控制，探討靜/動態流體中纖維配向與分佈之影響，評估感應電磁鐵設計之線圈匝數、電流大小和工作氣隙對磁通密度的影響，並找出最佳磁場分佈，進而探討該區域對環氧樹脂基材之纖維配向的影響。研究結果顯示，在電磁鐵中心區域，其磁通密度較其他區域高，且排向一致。當電流增加，磁通密度則越高，尤其在感應電磁場中心兩側區域較其他區域高。在工作氣隙方面，當工作氣隙越小時，磁通密度越高，工作氣隙為3mm時，其最高磁通密度為1132G。在線圈匝數方面，隨著匝數的增加，其磁通密度也越高。無磁場控制之纖維配向沿著流動方向而排列，而有磁場控制之纖維配向都較趨近垂直流動方向，且靜態流體磁場控制的纖維配向較動態流體磁場控制更佳。

關鍵字

電磁控制 ； 不鏽鋼纖維 ； 纖維配向

並列摘要

Polymers filled with conducting fibers to provide electrical conductivity performance have received great attention due to the requirements of many engineering applications. This study using electromagnetic aided controlling fiber orientation and distribution in flow field to investigate effect of distribution of fiber orientation angle and penetrating conductivity. The data were analyzed and the static / dynamic fluid and the effect of working air gap on the magnetic flux density of the induction electromagnet was evaluated, and the optimum magnetic field distribution was found out. Then, the influence of the area on the epoxy resin substrate fiber orientation. The results show that the magnetic flux density is higher than that of other regions in the central region of the electromagnet. When the current increases, the magnetic flux density is higher, especially in the center of the induced electromagnetic field on both sides of the region than other areas. In the working air gap, when the working gap is smaller, the higher the magnetic flux density, the working gap is 3 mm, the maximum flux density of 1132G. In the number of turns in the coil, with the increase in the number of turns, the magnetic flux density is higher. The fiber alignment with no magnetic field control is arranged along the flow direction, while the fiber alignment with magnetic field control is closer to the vertical flow direction, and the static fluid magnetic field control fiber alignment is better than the dynamic fluid magnetic field control.

並列關鍵字

Electromagnetic Control ； Stainless Steel Fiber ； Fiber Orientation