MX2020008329A - Composiciones refractarias y capas de barrera antioxidante in situ. - Google Patents

Composiciones refractarias y capas de barrera antioxidante in situ.

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Publication number
MX2020008329A
MX2020008329A MX2020008329A MX2020008329A MX2020008329A MX 2020008329 A MX2020008329 A MX 2020008329A MX 2020008329 A MX2020008329 A MX 2020008329A MX 2020008329 A MX2020008329 A MX 2020008329A MX 2020008329 A MX2020008329 A MX 2020008329A
Authority
MX
Mexico
Prior art keywords
refractory
particles
grain
coarse
magnesia
Prior art date
Application number
MX2020008329A
Other languages
English (en)
Inventor
Daniel T Schaner
Beda Mohanty
Roger L Maddalena
Original Assignee
Vesuvius Usa Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vesuvius Usa Corp filed Critical Vesuvius Usa Corp
Publication of MX2020008329A publication Critical patent/MX2020008329A/es

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    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/1015—Refractories from grain sized mixtures containing refractory metal compounds other than those covered by C04B35/103 - C04B35/106
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
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    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
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    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1005—Pretreatment of the non-metallic additives
    • C22C1/1015—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform
    • C22C1/1021—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform the preform being ceramic

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Una composición refractaria para formar un revestimiento de desgaste en un recipiente metalúrgico contiene una fracción de partículas refractarias de grano grueso y una fracción de partículas refractarias de grano fino, o al menos 0.25% de óxido de calcio aditivo, o al menos 0.25% de dióxido de titanio; las partículas refractarias de grano grueso pueden incluir partículas de alúmina, partículas de magnesia, partículas de espinela de aluminato de magnesio, partículas de circonia o partículas de doloma, o una combinación de cualquiera de estas partículas; las partículas refractarias de grano fino pueden comprender cualquier óxido refractario con bajo contenido de magnesia; la composición refractaria se puede aplicar a un recipiente metalúrgico mediante pulverización, gunitado, proyección, vibración, colada, alisado o colocación de formas refractarias preformadas, o una combinación de cualquiera de estas técnicas; cuando entra en contacto con el metal fundido, el metal fundido penetra en el material refractario, lo que humecta las partículas refractarias de grano grueso y forma una capa de barrera antioxidante compuesta de metal-refractaria que disminuye o bloquea el transporte de oxígeno a través del revestimiento refractario.
MX2020008329A 2018-02-09 2019-01-29 Composiciones refractarias y capas de barrera antioxidante in situ. MX2020008329A (es)

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PCT/US2019/015580 WO2019156845A1 (en) 2018-02-09 2019-01-29 Refractory compositions and in situ anti-oxidation barrier layers

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US20210002176A1 (en) 2021-01-07
WO2019156845A1 (en) 2019-08-15
EP3749474A1 (en) 2020-12-16
BR112020015497A2 (pt) 2020-12-08
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CN110128118B (zh) 2023-02-28
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US11746053B2 (en) 2023-09-05

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