公开(公告)号：EP2799598A4

公开(公告)日：2016-01-27

申请号：EP12863396

申请日：2012-10-31

Applicant: SUMCO CORP

Inventor： SUDO TOSHIAKI ,  SATO TADAHIRO ,  KITAHARA ERIKO ,  TOBITA SHUJI ,  SUZUKI KOICHI

IPC: C30B29/06 ,  B01L3/04 ,  C03B19/09 ,  C30B15/10 ,  G06F17/50

CPC classification number: G06F17/50 ,  B01L3/04 ,  C03B19/095 ,  C30B15/10 ,  C30B29/06 ,  G06F17/5009 ,  G06F2217/12 ,  G06F2217/16 ,  Y02P90/265

Abstract: A vitreous silica crucible is manufactured by rotational molding in such a manner that the three-dimensional shape thereof matches design data to a high degree. If the degree of matching between three-dimensional shapes of simulation data obtained based on initial property parameters and measurement data falls below a predetermined level, improved property parameters are set such that the degree of matching becomes higher than or equal to the predetermined level. If the degree of matching between three-dimensional shapes of simulation data obtained based on initial manufacturing conditions and the measurement data falls below a predetermined level, improved manufacturing conditions are set such that simulation data matching design data to a degree higher than or equal to the predetermined level is obtained. As a result, the degree of matching between the three-dimensional shapes of the design data and measurement data of the vitreous silica crucible can be enhanced to the predetermined level or higher. That is, it is possible to manufacture a vitreous silica crucible by rotational molding in such a manner that the three-dimensional shape thereof matches the design data to a high degree.