DE1186388B - Easily deformable ceramic material - Google Patents

Easily deformable ceramic material

Info

Publication number
DE1186388B
DE1186388B DEB60981A DEB0060981A DE1186388B DE 1186388 B DE1186388 B DE 1186388B DE B60981 A DEB60981 A DE B60981A DE B0060981 A DEB0060981 A DE B0060981A DE 1186388 B DE1186388 B DE 1186388B
Authority
DE
Germany
Prior art keywords
ceramic material
easily deformable
ceramic
shape
coarsest
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.)
Pending
Application number
DEB60981A
Other languages
German (de)
Inventor
Dr Karl Kellermann
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co 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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Publication of DE1186388B publication Critical patent/DE1186388B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/025Mixtures of materials with different sizes
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches

Description

Gut verformbare, keramische Masse Für die Erzielung von besonders günstigen Eigenschaften von keramischen Körpern, z. B. Isolationsfähigkeit, Feuerfestigkeit, hohe Erweichungs- und Schmelzpunkte, ist es oftmals zweckmäßig, eine möglichst dichte Packung des Materials durch Auswahl der zusammenpassenden Korngrößen, z. B. nach der Fuller-Kurve, zu erzielen.Easily deformable, ceramic mass For the achievement of special favorable properties of ceramic bodies, e.g. B. Insulation ability, fire resistance, high softening and melting points, it is often expedient to use one that is as dense as possible Packing of the material by selecting the matching grain sizes, e.g. B. after the Fuller's curve.

Naturgemäß wird dabei die für die Verformung erforderliche Flüssigkeitsmenge besonders klein, die für solche Systeme erforderliche Verformungsarbeit gleichzeitig aber erfahrungsgemäß besonders groß.Naturally, the amount of liquid required for the deformation is thereby used particularly small, the work of deformation required for such systems at the same time but experience has shown that it is particularly large.

Es wäre daher wünschenswert, einen Weg zu finden, der eine Verminderung der erforderlichen Verformungs- oder Knetarbeit ermöglicht.It would therefore be desirable to find a way of reducing it allows the required deformation or kneading work.

Durch Versuche konnte ermittelt werden, daß die Gestalt des grobkörnigsten Anteils solcher Systeme von wesentlichem Einfluß auf die erforderliche Verformungsarbeit ist und daß die besten Ergebnisse dann erzielt werden, wenn der grobkörnigste Anteil in einer der Kugelform möglichst angenäherten Gestalt vorliegt.Experiments have shown that the shape of the coarsest Part of such systems has a significant influence on the required deformation work and that the best results are achieved when the coarsest portion is present in a shape that is as approximated as possible to the spherical shape.

Man wird daher im Sinne der Erfindung für solche Systeme für den grobkörnigsten Anteil eine möglichst kugelförmige Gestalt wählen bzw. erforderlichenfalls diesen Anteil z. B. durch Abrieb in einer rotierenden Trommel oder in irgendeiner beliebigen anderen Weise nach Möglichkeit in Kugelform bringen.One is therefore within the meaning of the invention for such systems for the most coarse-grained Share a shape that is as spherical as possible or, if necessary, this Share z. B. by abrasion in a rotating drum or in any arbitrary In another way, if possible, bring it into a spherical shape.

Hierdurch wird erreicht, daß die Verformbarkeit von keramischen Massen, die beispielsweise auch oxydkeramische oder metallkeramische Massen sein können, wesentlich erleichtert wird.This ensures that the deformability of ceramic masses, which can also be oxide-ceramic or metal-ceramic masses, for example, is made much easier.

Zum Anmachen solcher Massen kann in an sich bekannter Weise Wasser oder eine wäßrige Lösung oder auch ein Gleitmittel mit hoher Viskosität, wie z. B. Alginatlösung oder eine Wasserglaslösung, Verwendung finden.To mix such masses, water can be used in a manner known per se or an aqueous solution or a lubricant with high viscosity, such as. B. alginate solution or a water glass solution, use.

Die feste Phase solcher Systeme, die meist aus drei Korngrößen mit verschiedenen Durchmessern besteht, kann chemisch gleichartig und von gleicher Modifikation oder chemisch gleichartig, aber unterschiedlicher Modifikation oder auch von chemisch unterschiedlicher Zusammensetzung sein.The solid phase of such systems, which usually consist of three grain sizes with consists of different diameters, can be chemically identical and of the same modification or chemically similar, but different modification or from chemical be of different composition.

Insbesondere kann die feste Phase aus Metallen und/oder Metallegierungen und aus nichtmetallischen Stoffen bestehen.In particular, the solid phase can consist of metals and / or metal alloys and consist of non-metallic materials.

Die Wirkung der erfindungsgemäßen Maßnahme konnte z. B. mit Mischungen festgestellt werden, deren grobe Anteile einer Kornklassierung von 0,02 bis 0,03 mm angehören, deren mittlere Korngrößen etwa 0,005 mm und deren kleinste Korngrößen weniger als 0,001 mm betrugen.The effect of the measure according to the invention could, for. B. with mixtures can be determined, the coarse proportions of a grain classification of 0.02 to 0.03 mm, their mean grain sizes about 0.005 mm and their smallest grain sizes were less than 0.001 mm.

In gleicher Weise wurde der angestrebte Effekt bei Mischungen mit einem gröbsten Korndurchmesser von 0,2 bis 0,3 mm und insbesondere auch von 2 bis 3 mm erzielt.In the same way, the desired effect was achieved with mixtures with a coarsest grain diameter of 0.2 to 0.3 mm and in particular also from 2 to 3 mm achieved.

Für Mischungen, deren grobkörnigste Anteile Durchmesser von über 10 mm haben, besteht im vorliegenden Zusammenhang kein technisches Interesse, weil dann ganz andere Gesichtspunkte berücksichtigt werden müssen, wie dies z. B. beim Mischen von Beton aus Zementmehl und Zuschlägen der Fall ist.For mixtures, the coarsest parts of which have a diameter of more than 10 mm, there is no technical interest in the present context because then completely different points of view have to be taken into account, as z. B. at Mixing concrete from cement flour and aggregates is the case.

Mischungen aus hydraulischen Bindemitteln und grobkörnigen Zuschlägen fallen also nicht unter den Gegenstand der Erfindung.Mixtures of hydraulic binders and coarse aggregates therefore do not fall under the subject matter of the invention.

Claims (1)

Patentanspruch: Gut verformbare keramische Masse, z. B. oxydkeramische oder metallkeramische Masse, die zur Erzielung einer möglichst dichten Pakkung aus zusammenpassenden Korngrößen besteht, dadurch gekennzeichnet, daß der grobkörnigste Anteil des Korngrößengemisches eine der Kugelform möglichst angenäherte Gestalt besitzt. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 604 691.Claim: Well deformable ceramic mass, z. B. oxide ceramic or metal-ceramic mass, which is used to achieve the tightest possible packing matching grain sizes, characterized in that the coarsest Proportion of the grain size mixture a shape that approximates the spherical shape as closely as possible owns. Documents considered: German Patent No. 604 691.
DEB60981A 1960-02-04 1961-01-25 Easily deformable ceramic material Pending DE1186388B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1186388X 1960-02-04

Publications (1)

Publication Number Publication Date
DE1186388B true DE1186388B (en) 1965-01-28

Family

ID=3686812

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB60981A Pending DE1186388B (en) 1960-02-04 1961-01-25 Easily deformable ceramic material

Country Status (1)

Country Link
DE (1) DE1186388B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604691C (en) * 1932-04-27 1934-10-26 Champion Spark Plug Co Process for the production of moldings, in particular from ceramic material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604691C (en) * 1932-04-27 1934-10-26 Champion Spark Plug Co Process for the production of moldings, in particular from ceramic material

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