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Patent Searching and Data


Title:
MOLD AND METHOD FOR MANUFACTURING QUARTZ GLASS CRUCIBLE
Document Type and Number:
WIPO Patent Application WO/2019/116972
Kind Code:
A1
Abstract:
The present invention provides a mold for manufacturing a quartz glass crucible by a rotary molding method, wherein a plurality of grooves that are concentric with respect to a mold rotation axis are provided in at least a straight body section of the inner surface of the mold, the plurality of concentric grooves being non-penetrating grooves which do not pass through the mold. Thus, the mold for manufacturing a quartz glass crucible by a rotary molding method is provided, the mold having the inner surface that is configured to make it difficult for quartz powder to slide off when forming a quartz powder mold body.

Inventors:
SAWAZAKI JIRO (JP)
OHAMA YASUO (JP)
TANIGUCHI KATSUMI (JP)
Application Number:
JP2018/044626
Publication Date:
June 20, 2019
Filing Date:
December 04, 2018
Export Citation:
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Assignee:
SHIN ETSU QUARTZ PRODUCTS CO LTD (JP)
International Classes:
C03B20/00
Domestic Patent References:
WO2015001593A12015-01-08
Foreign References:
JP2004026609A2004-01-29
JP2008273788A2008-11-13
JP2012017239A2012-01-26
JP2005298288A2005-10-27
JP2004026609A2004-01-29
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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