FR2452343A1 - IMPROVED PROCESS FOR THE MANUFACTURE OF AN ENCAPSULATED REFRACTORY BRICK, PARTICULARLY SUITABLE FOR DRAWER DRAWERS FOR CASTING POCKETS, CASTING FUNNELS AND THE LIKE, AND REFRACTORY BRICKS THUS OBTAINED - Google Patents

IMPROVED PROCESS FOR THE MANUFACTURE OF AN ENCAPSULATED REFRACTORY BRICK, PARTICULARLY SUITABLE FOR DRAWER DRAWERS FOR CASTING POCKETS, CASTING FUNNELS AND THE LIKE, AND REFRACTORY BRICKS THUS OBTAINED

Info

Publication number
FR2452343A1
FR2452343A1 FR8006535A FR8006535A FR2452343A1 FR 2452343 A1 FR2452343 A1 FR 2452343A1 FR 8006535 A FR8006535 A FR 8006535A FR 8006535 A FR8006535 A FR 8006535A FR 2452343 A1 FR2452343 A1 FR 2452343A1
Authority
FR
France
Prior art keywords
refractory
casting
refractory brick
encapsulated
manufacture
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR8006535A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANAC SpA
Original Assignee
SANAC SpA
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 SANAC SpA filed Critical SANAC SpA
Publication of FR2452343A1 publication Critical patent/FR2452343A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—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
    • C04B35/013—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 containing carbon
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/341—Silica or silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/343—Alumina or aluminates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/345—Refractory metal oxides
    • C04B2237/348—Zirconia, hafnia, zirconates or hafnates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • C04B2237/363—Carbon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • C04B2237/365—Silicon carbide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Procédé amélioré pour la fabrication d'une brique réfractaire encapsulée convenant particulièrement pour les déchargeurs à tiroirs pour poches de coulée, entonnoirs de coulée et matériels analogues, et briques réfractaires ainsi obtenues. La présente invention concerne un procédé pour fabriquer une brique réfractaire 10 encapsulée dans une enveloppe métallique 20, consistant à mélanger les composés réfractaires en granulés de préférence basiques avec un liant chimique, à mettre ce mélange à l'état libre dans l'enveloppe métallique 20, à comprimer ledit mélange dans ladite enveloppe puis à dégauchir et à rectifier la surface 11 de la brique réfractaire 10 émergeant de l'enveloppe, ce procédé étant caractérisé par le fait qu'au moins une fraction des composés réfractaires est constituée par de l'alumine en une quantité minimum de 20 % et qu'en outre, un manchon préformé constitué de préférence par une composition réfractaire comportant une liaison céramique peut être inséré dans ladite enveloppe avant le moulage de la partie restante de la brique réfractaire 10 afin de protéger le trou de coulée 40. Utilisation de ces briques dans un déchargeur à tiroirs.An improved process for the manufacture of an encapsulated refractory brick particularly suitable for unloaders with drawers for pouring ladles, pouring funnels and the like, and refractory bricks thus obtained. The present invention relates to a process for making a refractory brick 10 encapsulated in a metal casing 20, comprising mixing the refractory compounds in preferably basic granules with a chemical binder, putting this mixture in the free state in the metal casing 20. , in compressing said mixture in said casing and then in straightening and rectifying the surface 11 of the refractory brick 10 emerging from the casing, this process being characterized in that at least a fraction of the refractory compounds consists of alumina in a minimum amount of 20% and that in addition, a preformed sleeve preferably made of a refractory composition having a ceramic bond can be inserted into said shell before the molding of the remaining part of the refractory brick 10 in order to protect the taphole 40. Use of these bricks in a drawer unloader.

FR8006535A 1979-03-27 1980-03-24 IMPROVED PROCESS FOR THE MANUFACTURE OF AN ENCAPSULATED REFRACTORY BRICK, PARTICULARLY SUITABLE FOR DRAWER DRAWERS FOR CASTING POCKETS, CASTING FUNNELS AND THE LIKE, AND REFRACTORY BRICKS THUS OBTAINED Withdrawn FR2452343A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT12530/79A IT1124030B (en) 1979-03-27 1979-03-27 PROCEDURE PERFECTED FOR OBTAINING AN ENCAPSULATED REFRACTORY BRICK PARTICULARLY SUITABLE FOR DRAWER UNLOADING BASKET AND SIMILAR LADIES AND REFRACTORY BRICK IN THIS WAY OBTAINED

Publications (1)

Publication Number Publication Date
FR2452343A1 true FR2452343A1 (en) 1980-10-24

Family

ID=11141246

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006535A Withdrawn FR2452343A1 (en) 1979-03-27 1980-03-24 IMPROVED PROCESS FOR THE MANUFACTURE OF AN ENCAPSULATED REFRACTORY BRICK, PARTICULARLY SUITABLE FOR DRAWER DRAWERS FOR CASTING POCKETS, CASTING FUNNELS AND THE LIKE, AND REFRACTORY BRICKS THUS OBTAINED

Country Status (7)

Country Link
AU (1) AU5644880A (en)
DE (1) DE3011268A1 (en)
ES (1) ES489854A0 (en)
FR (1) FR2452343A1 (en)
GB (1) GB2045676A (en)
IT (1) IT1124030B (en)
ZA (1) ZA801309B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2109099B (en) * 1981-11-05 1985-07-24 Glaverbel Composite refractory articles and method of manufacturing them
AU1411001A (en) * 2000-06-09 2001-12-17 Orient Abrasives Limited Slide gate plate and nozzle systems having isostatically pressed sleeve
FR2830472A1 (en) * 2001-10-10 2003-04-11 Andre Daussan Manufacture of pouring tube for molten metal involves pouring a refractive sintering compound is into an annular space between an external metallic ferrule and an internal refractive forming tube
FR2830473B1 (en) * 2001-10-10 2005-01-14 Andre Daussan PROCESS FOR MAKING A CASTING TUBE
BRPI0718655A2 (en) * 2006-11-06 2013-11-19 Krosakiharima Corp HIGH DURABILITY SLEEVE BRICK

Also Published As

Publication number Publication date
GB2045676A (en) 1980-11-05
AU5644880A (en) 1980-10-02
IT1124030B (en) 1986-05-07
ES8101976A1 (en) 1980-12-16
DE3011268A1 (en) 1980-10-09
ZA801309B (en) 1981-03-25
ES489854A0 (en) 1980-12-16
IT7912530A0 (en) 1979-03-27

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