NO854531L - Varmefast induktorblokk for kanalinduksjonsovn og fremgangsmaate til fremstilling av samme. - Google Patents

Varmefast induktorblokk for kanalinduksjonsovn og fremgangsmaate til fremstilling av samme.

Info

Publication number
NO854531L
NO854531L NO854531A NO854531A NO854531L NO 854531 L NO854531 L NO 854531L NO 854531 A NO854531 A NO 854531A NO 854531 A NO854531 A NO 854531A NO 854531 L NO854531 L NO 854531L
Authority
NO
Norway
Prior art keywords
heat
resistant
inductor block
temperature
weight
Prior art date
Application number
NO854531A
Other languages
English (en)
Inventor
Virginia L Hammersmith
Robert J Ormesher
Original Assignee
Aluminum Co Of America
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 Aluminum Co Of America filed Critical Aluminum Co Of America
Publication of NO854531L publication Critical patent/NO854531L/no

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/16—Furnaces having endless cores
    • H05B6/20—Furnaces having endless cores having melting channel only
    • 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
    • C04B35/10—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
    • 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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

armefast induktorblokk (20) for kanalinduksjonsovner (2). for smelting av aluminium, omfattende en herd (6) og en in-duktor (10). Den varmefaste induktorblokk, (20) støpes av et varmefast materiale som er resistent mot å korroderes av smeltet aluminium, og består av 9,5 - 40 vekt% kalsium-aluminat, 0,5 - 10 vekt% av en borsilikat-fritte og 60 - 90 vekt% av et tilslagsmateriale bestående av en aluminiumoksyd-holdig forbindelse, en kiselsyreholdig forbindelse eller blandinger derav. Det varmefaste materiale støpes rundt en fast kjerne (80) laget av et materiale som kan desolidi-fiseres (helt eller delvis smeltes) ved tilførsel av varme, f.eks. voks. Kanalkjernen (80) formes for tilveiebringelse av de ønskede kanaler (30) i den varmefaste induktorblokk (20). Etter dannelsen av det varmefaste materiale kan form-materialet, såsom voks, smeltes bort og det varmefaste materiale herdes ved brenning ved en temperatur i området. 760 - 871°C, fortrinnsvis ca. 815°C, i 5 - 20 timer, fortrinnsvis ca. 6 timer. For å sikre ensartet oppvarmning under brenningen blir temperaturen langsomt hevet fra om-givelsestemperatur opp til brenningstemperaturen med en hastighet på opp til 5,6°C pr. time.
NO854531A 1984-11-19 1985-11-13 Varmefast induktorblokk for kanalinduksjonsovn og fremgangsmaate til fremstilling av samme. NO854531L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67250684A 1984-11-19 1984-11-19

Publications (1)

Publication Number Publication Date
NO854531L true NO854531L (no) 1986-05-20

Family

ID=24698841

Family Applications (1)

Application Number Title Priority Date Filing Date
NO854531A NO854531L (no) 1984-11-19 1985-11-13 Varmefast induktorblokk for kanalinduksjonsovn og fremgangsmaate til fremstilling av samme.

Country Status (5)

Country Link
EP (1) EP0182345A3 (no)
JP (1) JPS61173074A (no)
AU (1) AU4998885A (no)
CA (1) CA1263882A (no)
NO (1) NO854531L (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2371467A4 (en) * 2008-12-30 2017-08-02 GH Electrotermia, S.A. Method for manufacturing inductors for induction heating using microfusion techniques
WO2011120079A1 (en) * 2010-03-29 2011-10-06 Bluescope Steel Limited Ceramic lined channel inductor
MX2013009910A (es) * 2011-03-01 2013-12-06 Louis Johannes Fourie Horno de induccion de tipo canal.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1461863A (en) * 1923-07-17 Walter e
US3092682A (en) * 1960-03-24 1963-06-04 Ajax Magnethermic Corp Submerged resistor type induction furnaces and methods and processes therefor
US4088502A (en) * 1975-12-12 1978-05-09 Aluminum Company Of America Corrosion resistant castable refractory mix
DE2847483C2 (de) * 1978-11-02 1982-12-02 Fa. Adolf A. Fleischmann, 6000 Frankfurt Verfahren zur Herstellung der monolithischen Rinnenauskleidung eines Induktions-Rinnenschmelzofens
US4348236A (en) * 1980-09-09 1982-09-07 Aluminum Company Of America Composition for castable refractory block
SE8103473L (sv) * 1981-06-02 1982-12-03 Hoeganaes Ab Infodring av induktorer for varmhallning och smeltning av metaller

Also Published As

Publication number Publication date
CA1263882A (en) 1989-12-12
EP0182345A2 (en) 1986-05-28
JPS61173074A (ja) 1986-08-04
AU4998885A (en) 1986-05-29
EP0182345A3 (en) 1987-11-11

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