Mold and glass molded body manufacturing method
US8857217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jul 16, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2215/65
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a mold used as a bottom mold for manufacturing glass molded bodies by accepting molten glass droplets that are dripped in and by compression molding of the molten glass droplets in conjunction with a top mold. The mold is provided with a base material that has a mold surface for compression molding of molten glass drops, and a coating layer formed on the mold surface. The surface of the coating layer formed on the mold surface has a rough surface region that comprises the center of the mold surface, and a mirror finished region that surrounds the outside of the rough surface region and has a lower arithmetic mean roughness Ra than the rough surface region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.