| 摘要 |
PROBLEM TO BE SOLVED: To provide a preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus. SOLUTION: The production method of the preform for precision press molding includes forming a molten glass body by way of receiving and cutting molten glass, being flowed continuously from a discharge nozzle and receiving thereof by a support member, and transferring the molten glass body from the support member to a mold by way of displacing the support member to near the mold, disposed not to be beneath the discharge nozzle, while increasing the viscosity of the molten glass body on the support member. COPYRIGHT: (C)2009,JPO&INPIT
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