| 摘要 |
PURPOSE:To make it possible to freely adjust the thickness of an ultra-fine fiber, by a method wherein a chain like magnetic ultra-fine particle is erected on a foundation plate while a gas is reacted with the particle at the leading end part thereof and the other end part thereof is attracted by a magnetic field. CONSTITUTION:When chain like magnetic ultra-fine particles 5 are arranged to the inner wall surface of a foundation plate 1 so as to be erected by a magnet 4 and a reaction gas is flowed through the reaction part of the foundation plate 1, at the contact part of the leading end part of each chain like magnetic ultra- fine particle 5 and the wall surface, the reaction of the reaction gas is carried out but, in this case, an electromagnetic magnet 6 is brought close to each chain like magnetic ultra-fine particle 5 to attract the other end part thereof. By this method, the thickness of a formed ultra-fine fiber can be freely adjusted by predetermined tensile force. |
