公开(公告)号：US11192825B2

公开(公告)日：2021-12-07

申请号：US16487591

申请日：2018-01-19

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Tarou Makino ,  Shuuji Noai ,  Keiichirou Akamine

IPC: B22D11/10 ,  C04B35/101 ,  B22D41/32

Abstract: Disclosed is a refractory product for casting of steel, which is capable of forming a dense surface layer which is high in terms of a slag infiltration suppressing ability and strong, in a surface region thereof efficiently or sufficiently or in an optimum state. The refractory product contains 1 mass % or more of free carbon, and 2 mass % to 15 mass % of an aluminum component as metal, with the remainder comprising a refractory material as a main composition, wherein the refractory product has a permeability of 1×10−16 m2 to 15×10−16m2.