DE608949C - Process for the production of ceramic objects - Google Patents

Process for the production of ceramic objects

Info

Publication number
DE608949C
DE608949C DEST48405D DEST048405D DE608949C DE 608949 C DE608949 C DE 608949C DE ST48405 D DEST48405 D DE ST48405D DE ST048405 D DEST048405 D DE ST048405D DE 608949 C DE608949 C DE 608949C
Authority
DE
Germany
Prior art keywords
beryllium
silicates
ceramic objects
production
ceramic
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
DEST48405D
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia 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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Priority to DEST48405D priority Critical patent/DE608949C/en
Application granted granted Critical
Publication of DE608949C publication Critical patent/DE608949C/en
Expired 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches

Landscapes

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

Description

Verfahren zur Herstellung keramischer Gegenstände Es ist bereits versucht worden, Berylliumverbindungen in Porzellane einzuführen, um deren Eigenschaften zu verbessern, da der verhältnismäßig kleine Ausdehnungskoeffizient gewisser Berylliumsilikate bekannt war und man durch einen derartigen Zusatz eine erhebliche Verbesserung der Temperaturwechselbeständigkeit der keramischen Massen erhoffte. Man erhielt dabei aber keramische Massen, die sich nicht wesentlich von einer guten Porzellanmasse ohne Berylliumzusatz unterschieden.Method of making ceramic articles Attempts have been made been to introduce beryllium compounds into porcelains to improve their properties to improve because of the relatively small expansion coefficient of certain beryllium silicates was known and one by such an addition a considerable improvement in Resistance to temperature changes of the ceramic masses hoped for. One received thereby but ceramic bodies that are not much different from good porcelain bodies distinguished without the addition of beryllium.

Überraschenderweise hat sich nun gezeigt, daß man keramische Werkstoffe von vorzüglichen Eigenschaften erhält, wenn man Masseversätze, welche Berylliumsilikate enthalten, praktisch frei von Quarz und Feldspat hält. Man setzt zu diesem Zweck den Masseversatz aus natürlichen oder künstlichen Silikaten des Berylliums, sei es in Gestalt von einfachen Berylliumsilikaten oder z. B. in Gestalt von Berylliumaluminosilikaten sowie Tonen, Kaolinen o. dgl., zusammen. Die verhältnismäßig geringen Verunreinigungen an Quarz und Feldspat; welche die zur Verarbeitung notwendigen Zusätze zu den Berylliumsilikaten aufweisen, spielen dabei keine Rolle. Man erhält temperaturwechselbeständige, dichte, hoch zug- und schlagfeste keramische Gegenstände von vorzüglichen elektrischen Eigenschaften, wie sie bei Zusatz von Berylliumsilikaten zu Porzellanmassen bisher nie erzielt wurden.Surprisingly, it has now been shown that ceramic materials can be used of excellent properties if one obtains mass offsets, which beryllium silicates contains, keeps practically free of quartz and feldspar. You bet for this purpose the mass displacement from natural or artificial beryllium silicates it in the form of simple beryllium silicates or z. B. in the form of beryllium aluminosilicates and clays, kaolins or the like, together. The relatively minor impurities on quartz and feldspar; which the additives necessary for processing to the beryllium silicates do not play a role. The result is temperature change-resistant, dense, highly tensile and impact-resistant ceramic objects with excellent electrical properties, as it has never before been achieved with the addition of beryllium silicates to porcelain masses became.

Mitunter ist es zweckmäßig, zur Erleichterung des keramischen Brandes noch Flußmittel zum berylliumhaltigen, quarz- und alkalifreien Versatz hinzuzusetzen. Hierfür eignen sich alle bekannten alkalifreienFlußmittel, beispielsweise Erdalkaliverbindungen sowie Schwermetalloxyde; die Verwendung von Magnesiumsilikaten ist ausgenommen, da ihre Verwendung im Gemisch mit Ton o. dgl. und feuerfesten Stoffen Gegenstand eines älteren Patentes ist.Sometimes it is useful to facilitate the ceramic fire add flux to the beryllium-containing, quartz- and alkali-free backfill. All known alkali-free fluxes, for example alkaline earth compounds, are suitable for this purpose as well as heavy metal oxides; the use of magnesium silicates is excluded, as their use in a mixture with clay or the like and refractory materials of an older patent.

Claims (2)

PATENTANSPRÜCI3E: i. Verfahren zur Herstellung von keramischen Gegenständen durch Formen und Brennen von Gemischen aus tonigen Stoffen und Berylliumverbindungen, dadurch gekennzeichnet, daß als Formmasse praktisch quarz- und feldspatfreie Gemenge aus Ton, Kaolin o. dgl. und Berylliumsilikaten verwendet werden. PATENT CLAIMS: i. Process for the manufacture of ceramic objects by molding and firing mixtures of clayey substances and beryllium compounds, characterized in that the mixture is practically free of quartz and feldspar as the molding compound made of clay, kaolin or the like. And beryllium silicates can be used. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß dem Versatz alkalifreie Flußmittel mit Ausnahme von Magnesiumsilikaten zugesetzt werden.2. Procedure according to Claim i, characterized in that alkali-free fluxes with the exception of the offset of magnesium silicates can be added.
DEST48405D 1931-10-21 1931-10-21 Process for the production of ceramic objects Expired DE608949C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST48405D DE608949C (en) 1931-10-21 1931-10-21 Process for the production of ceramic objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST48405D DE608949C (en) 1931-10-21 1931-10-21 Process for the production of ceramic objects

Publications (1)

Publication Number Publication Date
DE608949C true DE608949C (en) 1935-02-04

Family

ID=7465621

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST48405D Expired DE608949C (en) 1931-10-21 1931-10-21 Process for the production of ceramic objects

Country Status (1)

Country Link
DE (1) DE608949C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282539B (en) * 1962-12-07 1968-11-07 Enno Tergau Dipl Ing Process for the production of a temperature change-resistant, acid-resistant, ceramic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282539B (en) * 1962-12-07 1968-11-07 Enno Tergau Dipl Ing Process for the production of a temperature change-resistant, acid-resistant, ceramic material

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