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Title:
REFRACTORY FOR SILICONIZING FURNACES
Document Type and Number:
WIPO Patent Application WO/2019/054222
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a refractory for siliconizing furnaces, which is suppressed in change of properties and embrittlement, and which has a long service life. A refractory for siliconizing furnaces, which contains 35% by mass or more in total of one or more substances that are selected from among silicon oxides, silicon nitrides and silicon oxynitrides and 0.05% by mass or less in total of alkali metals, while having a porosity of 25% by volume or less and a compressive strength of 5 MPa or more.

Inventors:
DOI Takashi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
KASAI Shoji (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
TOBE Teruhiko (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
KOYAMA Takumi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
Application Number:
JP2018/032582
Publication Date:
March 21, 2019
Filing Date:
September 03, 2018
Export Citation:
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Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
International Classes:
C04B35/14; C04B35/101; C04B35/586; C04B35/66; C23C10/08; C23C10/46; F27D1/00
Foreign References:
JPH08169750A1996-07-02
JP2000283655A2000-10-13
JPH01282148A1989-11-14
Other References:
TECHNICAL ASSOCIATION OF REFRACTORIES, 1981, pages 160 - 163
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JFE Techno-Research Corporation 7-1, Otemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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