DE416766C - Process for the production of an easily malleable, highly refractory mass - Google Patents

Process for the production of an easily malleable, highly refractory mass

Info

Publication number
DE416766C
DE416766C DEM85440D DEM0085440D DE416766C DE 416766 C DE416766 C DE 416766C DE M85440 D DEM85440 D DE M85440D DE M0085440 D DEM0085440 D DE M0085440D DE 416766 C DE416766 C DE 416766C
Authority
DE
Germany
Prior art keywords
production
highly refractory
refractory mass
easily malleable
mass
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.)
Expired
Application number
DEM85440D
Other languages
German (de)
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of DE416766C publication Critical patent/DE416766C/en
Expired legal-status Critical Current

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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
    • C04B35/16—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 silicates other than clay
    • C04B35/18—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 silicates other than clay rich in aluminium oxide
    • 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

Landscapes

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

Description

Verfahren zur Herstellung einer leicht formbaren, hochfeuerfesten lasse. Bekanntlich werden Schmelztiegel, :Muffeln u. dgl. in der Weise hergestellt, daß eine Mischung von Graphit, Chamotte, Bindeton und Wasser in die gewünschte Form gebracht, sehr langsam getrocknet und allmählich auf die Brenntemperatur erhitzt wind. Das Verfahren hat den Nachteil, daß das Trocknen und Brennen sehr lange dauert und mit großer Vorsicht vorgenommen werden muß. Die Gestehungskosten werden daher sehr hoch.Process for making an easily malleable, highly refractory let. It is known that melting crucibles, muffles and the like are produced in such a way that that a mixture of graphite, chamotte, binding clay and water in the desired shape brought, dried very slowly and gradually heated to the firing temperature wind. The method has the disadvantage that the drying and firing takes a very long time and must be done with great care. The prime costs are therefore very high.

Es ist vorgeschlagen worden, die Masse statt mit Wasser mit Lösungen von Wasserglas anzurühren. Eine solche Masse trocknet schnell und hat nach dem Trocknen eine bemerkenswerte Festigkeit. Beim Brennen aber macht sich das Wasserglas störend bemerkbar, indem es den Schmelzpunkt bzw. die Feuerfestigkeit sowie die mechanische Festigkeit der gebrannten `'Waren stark beeinträchtigt.It has been suggested to use the mass with solutions instead of water to stir from water glass. Such a mass dries quickly and has after drying remarkable strength. When burning, however, the water glass is bothersome noticeable by the melting point or the fire resistance as well as the mechanical Strength of the fired '' goods severely impaired.

Andere Vorschläge gehen dahin, genannten Mischungen Borsäure oder Borate zuzusetzen. Setzt man diese Substanzen in trockenem Zustande zu, so ist die Verteilung nicht gleichmäßig. Andererseits bringt man durch Verwendung von wäßrigen Lösungen zuwenig davon in die Masse, weil Borsäure und ihre Salze sich in Wasser nur spärlich lösen.Other proposals are to use boric acid or mixtures mentioned Add borates. If one adds these substances in a dry state, it is Distribution not even. On the other hand, you bring through the use of aqueous Solutions too little of it in the bulk, because boric acid and its salts are in water solve only sparsely.

Es hat sich nun gezeigt, daß eine Mischung von z Mol. Nag BI 07 - so H20 mit 4 Mol. H3 B03, also z. B. 382 g gewöhnlicher Borax plus 2.48 g Borsäure, sich in jeder beliebigen Konzentration herstellen läßt.It has now been shown that a mixture of z mol. Nag BI 07 - so H20 with 4 mol. H3 B03, so z. B. 382 g common borax plus 2.48 g boric acid, can be produced in any concentration.

Es werden deshalb bei dem Verfahren gemäß vorliegender Erfindung Borsäure und Borax mindestens annähernd im Verhältnis q. H3 B 03 - N a2 B, 07 gemischt in dem für die Anfeuchtung der Masse benötigten Wasser gelöst.In the process according to the present invention, boric acid and borax are therefore at least approximately in the ratio q. H3 B 03 - N a2 B, 07 mixed and dissolved in the water required to moisten the mass.

Eine Lösung dieser Mischung z. B. im gleichen Gewicht Wasser scheidet erst nach einigen 1 agen etwas Kristalle aus. Es können damit keramische Massen beliebiger Zusammensetzung hergestellt werden. Sie trozknen an der Luft mit großer Festigkeit auf. Das Trocknen darf sogar durch Wärme beschleunigt werden, ohne Gefahr von Rißbildung. Ebensowenig ist beim Brennen eine besondere Vorsicht nötig.A solution of this mixture, for. B. separates the same weight of water only after a few days some crystals will appear. It can be used with ceramic masses any composition can be produced. They dry in the air with great intensity Firmness on. Drying can even be accelerated with heat, without danger of cracking. Neither is special care necessary when firing.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung einer leicht formbaren, hochfeuerfesten Masse, unter Verwendung von Chamotte, Graphit, Borsäure und Borax, dadurch gekennzeichnet, daß Borsäure und Borax mindestens annähernd im Verhältnis 4. H3 B 03 -j-- Nag B3 0, gemischt in dem für die Anfeuchtung der Masse benötigten Wasser gelöst werden.PATENT CLAIM Process for the production of an easily malleable, highly refractory Mass, using chamotte, graphite, boric acid and borax, characterized in that boric acid and borax are at least approximately in the ratio 4. H3 B 03 -j-- Nag B3 0, mixed in the water required to moisten the mass.
DEM85440D 1924-05-12 1924-06-24 Process for the production of an easily malleable, highly refractory mass Expired DE416766C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH416766X 1924-05-12

Publications (1)

Publication Number Publication Date
DE416766C true DE416766C (en) 1925-07-28

Family

ID=4514592

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM85440D Expired DE416766C (en) 1924-05-12 1924-06-24 Process for the production of an easily malleable, highly refractory mass

Country Status (1)

Country Link
DE (1) DE416766C (en)

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