Title:
CROWN STRUCTURE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/203426
Kind Code:
A1
Abstract:
This crown structure (1) includes, to the oven interior side of a glass melting furnace, a corrosion-resistant layer (2) comprising a plurality of silica bricks disposed to be aligned in such a manner as to form a vault shape, a silica thermal insulation layer (3) having a silica sintered body formed over the corrosion-resistant layer (2), and a lightweight thermal insulation layer (4) comprising two or more layers formed on the silica thermal insulation layer (3). The lightweight thermal insulation layer (4) has a layered structure wherein at least the layer in contact with the silica thermal insulation layer (3) comprises a plurality of thermal insulation blocks and a lightweight, amorphous, thermal insulation refractory provided in the joint portion between the thermal insulation blocks.
Inventors:
ONO YASUSHI (JP)
KOBAYASHI RITSUO (JP)
KOBAYASHI RITSUO (JP)
Application Number:
PCT/JP2020/012796
Publication Date:
October 08, 2020
Filing Date:
March 23, 2020
Export Citation:
Assignee:
AGC CERAM CO LTD (JP)
International Classes:
C03B5/42; C03B5/43; F27D1/00
Domestic Patent References:
| WO2002008128A1 | 2002-01-31 | |||
| WO2013179409A1 | 2013-12-05 | |||
| WO2002008128A1 | 2002-01-31 |
Foreign References:
| JP2003261335A | 2003-09-16 | |||
| JP2017007916A | 2017-01-12 | |||
| US1733664A | 1929-10-29 | |||
| JPS5851404B2 | 1983-11-16 | |||
| JP2019066369A | 2019-04-25 |
Other References:
See also references of EP 3950608A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: