BR112022010079A2 - Produto refratário que não é impregnado com alcatrão ou piche - Google Patents

Produto refratário que não é impregnado com alcatrão ou piche

Info

Publication number
BR112022010079A2
BR112022010079A2 BR112022010079A BR112022010079A BR112022010079A2 BR 112022010079 A2 BR112022010079 A2 BR 112022010079A2 BR 112022010079 A BR112022010079 A BR 112022010079A BR 112022010079 A BR112022010079 A BR 112022010079A BR 112022010079 A2 BR112022010079 A2 BR 112022010079A2
Authority
BR
Brazil
Prior art keywords
impregnated
pitch
refractory material
tar
pit
Prior art date
Application number
BR112022010079A
Other languages
English (en)
Inventor
Takami Kouhei
Morikawa Katsumi
Matsumoto Shigefumi
Original Assignee
Krosakiharima 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 Krosakiharima Corp filed Critical Krosakiharima Corp
Priority claimed from PCT/JP2020/045737 external-priority patent/WO2021117742A1/ja
Publication of BR112022010079A2 publication Critical patent/BR112022010079A2/pt

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/30—Manufacturing or repairing thereof
    • B22D41/32—Manufacturing or repairing thereof characterised by the materials used therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/52—Manufacturing or repairing thereof
    • B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
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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
    • C04B35/04—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 based on magnesium oxide
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  • Structural Engineering (AREA)
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  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

A presente invenção provê um material refratário que não é impregnado com piche ou semelhante, e tem maior resistência à corrosão e resistência ao choque térmico em comparação com um produto impregnado, tal como um piche. submetido a piche ou tratamento de impregnação semelhante. Um material refratário que não é impregnado com alcatrão ou piche, de acordo com a presente invenção, é distinguido por, como valores das propriedades físicas de uma amostra de material refratário, que é tratada termicamente em uma atmosfera não oxidante a 1200°C, uma porosidade aparente é de no máximo 7%; um volume total de poro de poros tendo um diâmetro de poro de no máximo 1 µm de pelo menos 80% em relação ao volume integrado de poro de toda a amostra de material refratário, e uma permeabilidade de 50 × 10-17 m2.
BR112022010079A 2019-12-10 2020-12-08 Produto refratário que não é impregnado com alcatrão ou piche BR112022010079A2 (pt)

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JP2019223106 2019-12-10
PCT/JP2020/045737 WO2021117742A1 (ja) 2019-12-10 2020-12-08 耐火物

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US20230028785A1 (en) 2023-01-26
EP4074433A4 (en) 2023-04-12
CN114728852A (zh) 2022-07-08
JPWO2021117742A1 (ja) 2021-12-09
EP4074433A1 (en) 2022-10-19
CN114728852B (zh) 2023-06-09
CA3158450A1 (en) 2021-06-17
JP6855646B1 (ja) 2021-04-07

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