Invention Grant
- Patent Title: Graphite-containing refractory and method of producing graphite-containing refractory
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Application No.: US17326424Application Date: 2021-05-21
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Publication No.: US11629916B2Publication Date: 2023-04-18
- Inventor: Keisuke Yoshida , Hisahiro Matsunaga , Yoichiro Hama
- Applicant: JFE Steel Corporation
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JPJP2017-033126 20170224
- Main IPC: F27D1/00
- IPC: F27D1/00 ; C04B35/622 ; C04B35/626 ; C04B35/63 ; C04B35/634 ; C04B35/636 ; C04B35/82 ; C04B35/83 ; C04B35/043 ; C04B35/103 ; C04B35/52 ; C04B35/80

Abstract:
A method of producing a graphite-containing refractory within which carbon fiber bundles are placed, the graphite constituting 1% to 80% by mass, the method including a bundling step of bundling carbon fibers to form the carbon fiber bundles; a mixing step of mixing a refractory raw material with graphite to prepare a graphite-containing refractory raw material; a pressing step of pressing the graphite-containing refractory raw material in which the carbon fiber bundles are placed to prepare a formed product; and a drying step of drying the pressed product, wherein the bundling step includes bundling 1000 to 300000 of the carbon fibers with a fiber diameter of 1 to 45 μm/fiber to form carbon fiber bundles 100 mm or more in length.
Public/Granted literature
- US20210270529A1 GRAPHITE-CONTAINING REFRACTORY AND METHOD OF PRODUCING GRAPHITE-CONTAINING REFRACTORY Public/Granted day:2021-09-02
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