The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2026
Filed:
Jun. 07, 2022
Mitsui Kinzoku Company, Limited, Tokyo, JP;
Hitoshi Kajino, Omuta, JP;
Shoji Imaura, Omuta, JP;
Abstract
Provided is a refractory member that is excellent in corrosion resistance and excellent in the adhesiveness of a carbide coating disposed on a surface of a graphite material base. The refractory member includes: a graphite material base; and a carbide layer disposed to coat at least a part of a surface of the graphite material base. In the refractory member, the graphite material base includes a graphite material phase and a pore, the carbide layer includes a composite region, and the composite region includes an alternating region in which a continuous graphite material phase of at least 50 μm or more and a continuous carbide phase of at least 50 μm or more alternately exist in a horizontal direction along an interface between the graphite material base and the carbide layer, as viewed in a cross section along the thickness direction of the carbide layer.