| 摘要 |
PROBLEM TO BE SOLVED: To stably produce spherical particles having a uniform specified diameter with high reliability. SOLUTION: The method for producing the spherical particles by injecting a melt through a pore in a vessel comprises a step of practically producing particles having a specified diameter and a step of producing samples before the step of practically producing particles, wherein the step of producing samples is characterized in that the diameter of particles dripped down from an orifice and the distance between the particles are measured and introduced to a predetermined equation representing a correlation between the particle diameter and the distance between the particles to specify the constants in the equation and to obtain operating conditions under which to obtain particles having a diameter close to a target diameter from the measured particle diameter as initial operating conditions for apparatuses to be operated in the step of practically producing particles, and wherein the step of practically producing particles is characterized in that the apparatuses start under the above initial operating conditions and then controlled based on the diameter of dripping particles calculated by introducing the distance between dripping particles measured inline to the above predetermined equation the constants of which are specified. COPYRIGHT: (C)2008,JPO&INPIT |
