Title:
FUSION PREVENTION STRUCTURE FOR REFRACTORY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/163293
Kind Code:
A1
Abstract:
[Problem] To provide a fusion prevention structure for a refractory material, the fusion prevention structure making it possible for a graphite-containing refractory material to which an antioxidant is applied to be coated using a coating agent having a glass transition point higher than that of the antioxidant, and making it possible to prevent vitrified antioxidant from mutually fusing with vitrified antioxidant on the surface of another graphite-containing refractory material. [Solution] This fusion prevention structure for a refractory material is configured by disposing an oxidation-resistant layer 11 that includes an antioxidant having a glass transition point of 500°C or higher on the surface of a graphite-containing refractory material 10, and disposing a fusion prevention layer 12 that includes a coating agent having a glass transition point of 1600°C or higher on the surface of the oxidation resistant layer, the fusion prevention structure being such that, when the graphite-containing refractory material is installed in a high-temperature environment at 500°C or higher, the vitrified oxidation-resistant layer is covered by the solid fusion prevention layer. Thus, even when in contact with each other, components made from a graphite-containing refractory material can easily be separated from each other after cooling.
Inventors:
KACHI KEISUKE (JP)
Application Number:
PCT/JP2021/048767
Publication Date:
August 04, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
AKECHI CERAM CO LTD (JP)
KACHI KEISUKE (JP)
KACHI KEISUKE (JP)
International Classes:
C04B41/89; F27D1/00
Foreign References:
| JPH08325086A | 1996-12-10 | |||
| JPH107479A | 1998-01-13 | |||
| JP2001335375A | 2001-12-04 |
Attorney, Agent or Firm:
MIYAKE Hazime et al. (JP)
Download PDF: