CH239717A - Process for the production of a highly refractory mass. - Google Patents

Process for the production of a highly refractory mass.

Info

Publication number
CH239717A
CH239717A CH239717DA CH239717A CH 239717 A CH239717 A CH 239717A CH 239717D A CH239717D A CH 239717DA CH 239717 A CH239717 A CH 239717A
Authority
CH
Switzerland
Prior art keywords
production
added
highly refractory
refractory mass
mass
Prior art date
Application number
Other languages
German (de)
Inventor
F Hoffmann
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of CH239717A publication Critical patent/CH239717A/en

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
    • C04B35/14—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 silica

Description

  

  Verfahren zur Herstellung einer     hochfeuerfesten    Nasse.    Gegenstand vorliegender Erfindung ist  ein Verfahren zur     Herstellung        einer        hoch-          feuerfesten    Masse,     die    z.

   B. als     Futter    zur       Verkleidung    von     Elektroöfen,    wie     Induk-          tions-Nie:derfrequenz-Sch!meIzöfen,    dann     auch     als Formmasse für     Metallguss,    Kokillen für       Stahlguss        usw.    geeignet     ist.     



  Das Verfahren kann z. B.     wie    folgt     durch-          geführt        werden:     Geschmolzenem und     gemahlenem        Quarz,     dem noch     verschiedene        Metalloxyde,    wie z.

       B.          gebrannter        Magnesit    oder Aluminiumoxyd, je  nach Bedarf zugesetzt werden können, wird  so viel     plastischer    Ton zugesetzt,     dass    die       erhaltene    Masse formbar ist,     \wobei        @d-er    Ton  gehalt zweckmässig weniger als 25 % beträgt.  



  Die     L=    brannte Masse bleibt auch bei sehr  hohen     Temperaturen    und grossen und raschen  Temperaturunterschieden völlig     rissfrei        und          forrnb,estgn,di,g.     



  Die Masse     schrumpft        und    dehnt sich sehr  wenig; die Ausdehnung kann je nach :den  Zusätzen     reguliert    werden.



  Process for producing a highly refractory wet. The present invention is a method for the production of a highly refractory mass, which z.

   B. as a lining for cladding electric furnaces, such as induction never: derfrequency melting furnaces, then also as a molding compound for metal casting, molds for steel casting, etc. is suitable.



  The method can e.g. B. be carried out as follows: Melted and ground quartz, which is also mixed with various metal oxides, such as.

       B. burnt magnesite or aluminum oxide can be added as required, so much plastic clay is added that the mass obtained is malleable, \ where @ the clay content is advantageously less than 25%.



  Even at very high temperatures and large and rapid temperature differences, the burned mass remains completely free of cracks and forms.



  The mass shrinks and stretches very little; the expansion can be regulated according to: the additives.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer hoch- feuerfesten Masse, dadurch gekennzeichnet, dass man geschmolzenem und gemahlenem Quarz so viel plastischen Ton zusetzt, d#ass die erhaltene Masse formbar ist. UNTERANSPRüCHE 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass der Zusatz an plastischem Ton weniger als 25 % beträgt. PATENT CLAIM: A process for the production of a highly refractory mass, characterized in that molten and ground quartz is added so much plastic clay that the mass obtained can be shaped. SUBClaims 1. Method according to claim, characterized in that the addition of plastic clay is less than 25%. 2. Verfahren nach Unteranspruch 1, @da- durch gekennzeichnet, dass man ausserdem ein Metailloxyd zusetzt. 3. Verfahren nach Unteranspruch 2, da durch ,gekennzeichnet, dass man gebrannten Magmesit zusetzt. 4. Verfahren nach Unteranspruch 2, da ,durch gekennzeichnet, dass man Aluminium oxyd zusetzt. 2. The method according to dependent claim 1, characterized in that a metal oxide is also added. 3. The method according to dependent claim 2, characterized in that calcined magmesite is added. 4. The method according to dependent claim 2, characterized in that aluminum oxide is added.
CH239717D 1943-11-10 1943-11-10 Process for the production of a highly refractory mass. CH239717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH239717T 1943-11-10

Publications (1)

Publication Number Publication Date
CH239717A true CH239717A (en) 1945-11-15

Family

ID=4461373

Family Applications (1)

Application Number Title Priority Date Filing Date
CH239717D CH239717A (en) 1943-11-10 1943-11-10 Process for the production of a highly refractory mass.

Country Status (1)

Country Link
CH (1) CH239717A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905237C (en) * 1951-09-12 1954-03-01 Koppers Gmbh Heinrich Fireproof ceramic molded body
DE2520993A1 (en) * 1974-05-15 1975-12-04 Aikoh Co FUNNELS FOR CONTINUOUS STEEL CASTING AND METHOD FOR MANUFACTURING THE SAME

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905237C (en) * 1951-09-12 1954-03-01 Koppers Gmbh Heinrich Fireproof ceramic molded body
DE2520993A1 (en) * 1974-05-15 1975-12-04 Aikoh Co FUNNELS FOR CONTINUOUS STEEL CASTING AND METHOD FOR MANUFACTURING THE SAME

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