Title:
REFRACTORY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/117742
Kind Code:
A1
Abstract:
The present invention provides a refractory material which does not impregnate a pitch or the like, and has high corrosion resistance and thermal shock resistance as compared with an impregnated product such as a pitch. A refractory material that does not impregnate a tar or pitch, according to the present invention, is characterized by having, as physical property values of a refractory material sample which is heat-treated in a non-oxidizing atmosphere at 1200 °C, an apparent porosity of at most 7%, the total pore volume of pores having a pore diameter of at most 1 μm of at least 80% with respect to the integrated pore volume of the entity of the refractory material sample, and a permeability of 50×10-17m2.
Inventors:
TAKAMI KOUHEI (JP)
MORIKAWA KATSUMI (JP)
MATSUMOTO SHIGEFUMI (JP)
MORIKAWA KATSUMI (JP)
MATSUMOTO SHIGEFUMI (JP)
Application Number:
PCT/JP2020/045737
Publication Date:
June 17, 2021
Filing Date:
December 08, 2020
Export Citation:
Assignee:
KROSAKIHARIMA CORP (JP)
International Classes:
B22D11/10; B22D41/32; C04B35/103; C04B35/106
Domestic Patent References:
| WO2018061731A1 | 2018-04-05 | |||
| WO2018155030A1 | 2018-08-30 | |||
| WO2009119683A1 | 2009-10-01 | |||
| WO2018056456A1 | 2018-03-29 |
Foreign References:
| JP2014169214A | 2014-09-18 | |||
| JP2001151558A | 2001-06-05 | |||
| JP2003171187A | 2003-06-17 | |||
| JP2002362969A | 2002-12-18 | |||
| JP2014206309A | 2014-10-30 | |||
| JPH11199328A | 1999-07-27 |
Attorney, Agent or Firm:
EIWA PATENT FIRM (JP)
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